24 June 2022 · Committee
Netherby, Douglas Road, Castletown, Isle Of Man, IM9 1tn
This application sought permission to demolish the existing detached house known as Netherby on Douglas Road, Castletown, and replace it with seven new detached dwellings, each with an integral garage, along with new access arrangements, drainage, and landscaping. The site covers around one hectare, with the original house positioned in the far northern corner and a long driveway running through a lawned area with conifers and planted beds to the A5 road. The planning committee approved the application on 24 June 2022, with the case officer also recommending approval. The officer report identified a range of issues to be weighed, including the principle of residential development, the effect on the character and appearance of the street scene, impacts on trees, ecology, highways, drainage and flood risk, neighbouring residential amenity, and archaeological concerns. Permission was granted subject to 16 conditions.
The Department of Environment, Food and Agriculture approved the application at committee on 24 June 2022. The officer also recommended approval. Key planning issues considered included the principle of residential development on the site, the impact on the character and appearance of the street scene, effects on trees, ecology, highways, drainage, neighbouring amenity, and archaeological concerns.
presumption against development in areas which are not designated
general presumption against development in areas which are not designated for a particular purpose
Area Plan for the East sets out locally-applicable means for implementing the policies set out in the Isle of Man Strategic Plan 2016. In that Strategic Plan, we find the Environment Policies. Environment Policy 1 states: The countryside and its ecology will be protected for its own sake. For the purposes of this policy, the countryside comprises all land which is outside the settlements defined in Appendix 3 at A.3.6 or which is not designated for future development on an Area Plan. Development which would adversely affect the countryside will not be permitted unless there is an over- riding national need in land use planning terms which outweighs the requirement to protect these areas and for which there is no reasonable and acceptable alternative. Maintaining the purpose of this Area Plan as a means of implementation, there is some further direction to be found in the Strategic Plan, at paragraph 7.2.1: 'Whilst landscape and coastal change is inevitable, and in some cases desirable, the emphasis must be on the appropriateness of this change and the balance or equity between the needs of conservation and those of development. The primary goal must therefore be to respect, maintain and enhance the natural and cultural environment including nature conservation and landscape and coastal quality, and ensure its protection from inappropriate development.' Given the comprehensive nature of the Isle of Man Strategic Plan's Environmental Policies, only a small number of additional Proposals and Recommendations are necessary. In order to produce an implementable Area Plan for the East it is necessary to recognise those statutory desig nations and strategies which whilst having an Island-wide scope are highly relevant to the protection of environments within the Plan Area. An example is the UNESCO Biosphere status afforded to the Isle of Man. Island-level strategies identify crossborder issues and take account of the cumulative impacts of human engagement with nature. Area Plan Objectives i. To protect, conserve and enhance the natural and cultural environment of the plan area and promote biodiversity. ii. To improve the function, usability and provision of our green infrastructure and public spaces by providing a network of green spaces and features which are connected and where possible, accessible to the public. iii. To manage and improve flood risk and improve drainage conditions. iv. To support the working countryside and its custodians in maintaini ng a sustainable rural economy. Area Plan Desired Outcomes i. Where approved, d evelopment will be ecologically sustainable and designed to protect and where possible enhance biodiversity as well as mitigate and adapt to the effects of climate change. ii. The Green Infrastructure network will be established and fostered, connecting people with nature in a way that achieves the best shared outcomes for the urban and natural environment. iii. Statutory and non-statutory designations will continue to provide protection to the most important and most vulnerable cultural assets, habitats and environments in the plan area. iv. Beyond the towns and villages, the area as a whole will retain its landscape setting including its important visual interaction with the central uplands, central valley, coast and marine environment. Natural Environment Proposal 1 The Department supports the protection, creation and improvement of green infrastructure in the East, particularly in those locations which have the potential to be part of a Green Infrastructure Network. Applications for development must take into account any approved Government Green Infrastructure Strategies, but in any case, must identify how development proposals intend to contribute to the long term provision of a network of connected green spaces. UNESCO Biosphere In 2017, the Isle of Man became the first ever entire nation to achieve UNESCO Biosphere status. Project partners pledge to take steps to protect natural resources, develop the economy in a sustainable way and promote outstanding living landscapes. UNESCO Biosphere Reserves are established to connect people and the economy with nature, wildlife, culture, heritage and communities. Biosphere Reserves have three functions: Conservation: to contribute to the conservation of landscapes, ecosystems, species and genetic variation. Development: to foster economic and human development which is socio -culturally and ecologically sustainable. Logistic support: to support demonstration projects, environmental education and training, research and monitoring related to local, regional, national and global issues of conservation and sustainable development. The Isle of Man Biosphere is zoned into six areas . Examples of all of these can be found in the Eastern area: Terrestrial Core areas, Marine Core areas, Terrestrial Buffer zone, Marine Buffer zone, Terrestrial Transition areas and Marine Transition areas. There is some overlap with The Isle of Man's First Biodiversity Strategy 2015-20
protection of the countryside
where the protection of the countryside is of paramount importance
General Policy 3: Development will not be permitted outside of those areas which are zoned for development on the appropriate Area Plan with the exception of: (a) essential housing for agricultural workers who have to live close to their place of work; (Housing Policies 7, 8, 9 and 10); (b) conversion of redundant rural buildings which are of architectural, historic, or social value and interest; (Housing Policy 11); (c) previously developed land (1) which contains a significant amount of building; where the continued use is redundant; where redevelopment would reduce the impact of the current situation on the landscape or the wider environment; and where the development proposed would result in improvements to the landscape or wider environment; (d) the replacement of existing rural dwellings; (Housing Policies 12, 13 and 14); (e) location-dependent development in connection with the working of minerals or the provision of necessary services; (f) building and engineering operations which are essential for the conduct of agriculture or forestry; (g) development recognised to be of overriding national need in land use planning terms and for which there is no reasonable and acceptable alternative; and (h) buildings or works required for interpretation of the countryside, its wildlife or heritage. 6.4 Planning Agreements 6.4.1 Where development is acceptable and in accordance with the provisions of this Plan and the relevant Area Plan, but raises issues which cannot be addressed by the imposition of planning conditions, the Department will seek to conclude an Agreement with the developer under Section 13 of the 1999 Town and Country Planning Act.
General Policy 2
Development which is in accordance with the land-use zoning and proposals
General Policy 2: Development which is in accordance with the land-use zoning and proposals in the appropriate Area Plan and with other policies of this Strategic Plan will normally be permitted, provided that the development: (a) is in accordance with the design brief in the Area Plan where there is such a brief; (b) respects the site and surroundings in terms of the siting, layout, scale, form, design and landscaping of buildings and the spaces around them; (c) does not affect adversely the character of the surrounding landscape or townscape; (d) does not adversely affect the protected wildlife or locally important habitats on the site or adjacent land, including water courses; (e) does not affect adversely public views of the sea; (f) incorporates where possible existing topography and landscape features, particularly trees and sod banks; (g) does not affect adversely the amenity of local residents or the character of the locality; (h) provides satisfactory amenity standards in itself, including where appropriate safe and convenient access for all highway users, together with adequate parking, servicing and manoeuvring space; (i) does not have an unacceptable effect on road safety or traffic flows on the local highways; (j) can be provided with all necessary services; (k) does not prejudice the use or development of adjoining land in accordance with the appropriate Area Plan; (l) is not on contaminated land or subject to unreasonable risk of erosion or flooding; (m) takes account of community and personal safety and security in the design of buildings and the spaces around them; and (n) is designed having due regard to best practice in reducing energy consumption. 6.3 Development outside of areas zoned for development
Environment Policy 42
New development in existing settlements must be designed to take account of the particular character
pment. 8.13.2 The extent of formal open space with in settlement boundaries in the South is identified on the Proposals Map (Map 3) and Inset Maps (Maps 4-7). The Isle of Man Strategic Plan (Environment Policy 42) seeks to protect these open spaces and indicates that: 8.13.3 "Inappropriate backland development, and the removal of open or green spaces which contribute to the visual amenity and sense of place of a partic ular area will not be permitted.''
Strategic Policy 1
Development should make the best use of resources
Strategic Policy 1: Development should make the best use of resources by: (a) optimising the use of previously developed land, redundant buildings, unused and under -used land and buildings, and re - using scarce indigenous building materials; (b) ensuring efficient use of sites, taking into account the needs for access, landscaping, open space (1) and amenity standards; and (c) being located so as to utilise existing and planned infrastructure, facilities and services. 4.2.2 In pursuance of (c) abo ve, the Department will, when formulating its programme for the preparation of new Area Plans, have particular regard to: (a) the availability of mains drainage connected to IRIS or other mains systems; (b) securing the future viability of rural primary schools; (c) the public investment in the Island's highway, bus, railway and tramway networks; (d) the provision and availability of water; and (e) community facilities. 4.3 Environment 4.3.1
Strategic Policy 2
New development will be located primarily within our existing towns and villages
Strategic Policy 2: New development will be located primarily within our existing towns and villages, or, where appropriate, in sustainable urban extensions(2) of these towns and villages. Development will be permitted in the countryside only in the exceptional circumstances identified in paragraph 6.3. (1) Open Space is defined in Appendix 1. (2) Sustainable Urban Extensions are defined in Appendix 1 4.3.2 Appendix 3 to the Plan identifies the towns and villages, and also explains why the Department has rejected the idea of a new settlement, which was mooted in the Consultation Draft published in May 2000. 4.3.3 Each of our towns and villages has an ind ividual character arising not only from its geographical position and existing fabric, but also from its historical, cultural, and social background. This character should be protected and enhanced. Accordingly:
Strategic Policy 3
Proposals for development must ensure that the individual character of our towns and villages is protected
Strategic Policy 3: Proposals for development must ensure that the individual character of our towns and villages is protected or enhanced by: (a) avoiding coalescence and maintaining adequate physical separation between settlements; and (b) having regard in the design of new development to th e use of local materials and character. 4.3.4 Most of our built heritage, our countryside, our coastline and our natural environment is of attraction, value and interest. Surveys commissioned by Government on the quality of life and the importance of heritage in the Isle of Man and internationally, have consistently shown that the historic landscape setting of the Isle of Man scores as t he single most significant factor for residents and visitors in supporting the concept of a specific and positive Manx identity. This "heritage identity" is a result of the combination of a rich diversity of historic sites and monuments, historic building s and residential settlements and a specific range of natural history attributes set within a predominantly rural landscape setting which links modern life to a sense of historic legacy and beauty, the retention of which is strongly supported by Government and the resident community. 4.3.5 The landscapes of the Island are very varied, and their nature and variety is the consequence of thousands of years of interaction between the natural and cultural aspects of the Island through human activity within the enviro nment and an innate respect for the natural and historic qualities they represent. 4.3.6 This landscape heritage is more than simply the sum of its parts. The combination of geology, geomorphology, wildlife, archaeology, history, traditional buildings and the natural settings for traditional activities and customs, combine in the rural and built environment to provide an inseparable element of "Manxness". It provides an overarching context which makes the landscapes of the Isle of Man unique and gives them the value which is acknowledged by those who live here and those who visit. The protection and promotion of this element within Manx society is an important element in central Government policy and the Strategic Plan, which both support the view that these v alued characteristics of the Isle of Man be acknowledged and protected for the future from inappropriate development. 4.3.7 This protection will apply to areas of heritage value, to sites of heritage value and to general traditional landscape settings within the Island which are deemed to contribute to the sense of the Island's heritage identity. Heritage landscape value will therefore be a consideration in all aspects of planning, with a view to retaining and enhancing this value wherever possible.
Housing Policy 5
Housing Policy 5: In granting planning permission on land zoned for residential development or in predominantly residential areas the Department will normally require that 25% of provision should be made up of affordable housing. This policy will apply to developments of 8 dwellings or more. The term affordable housing is defined by the Department as housing which is either: directly provided by the Department; or directly provided by Local Authorities; or meets the criteria for the Department's House Purchase Assistance Scheme 2004 (and any successor schemes approved by Tynwald). 8.7 New Housing in Existing Settlements 8.7.1 Recent Local Plans and Area Plans have included development briefs guiding the design and layout of land which is zoned for residential use. Such briefs should not needlessly prescribe design, but should indicate site-specific constraints, the need for provision of public facilities or amenities (such as play areas, neighbourhood shops, or land for schooling, open space, or road improvements), and, if appropriate, the maximum or minimum density and the need for the inclusion of an element of affordable housing. Where these briefs state that an optimum density should be achieved this should not be used as an argument for higher density development which has an adverse effect on the residential amenity of adjoining properties or the character of the area.
Transport Policy 1
Transport Policy 1: New development should, where possible, be located close to existing public transport facilities and routes, including pedestrian, cycle and rail routes.
Transport Policy 4
Transport Policy 4: The new and existing highways which serve any n ew development must be designed so as to be capable of accommodating the vehicle and pedestrian journeys generated by that development in a safe and appropriate manner, and in accordance with the environmental objectives of this plan. 11.3.2 Notwithstanding policies within this plan which encourage travel by means other than private car it is anticipated that the number of vehicles using the Island's roads will continue to increase. This increase in demand is likely to lead to a greater need for road impro vements in order that travel can take place in a safe, effective, and environmentally acceptable manner. The Department of Transport will continue to assess the need for such improvements to public highways and undertake works where appropriate, with much of the improvement within existing roads carried out under the provisions of the Town and Country Planning (Permitted Development) Order2005. The need for improvements to the Island's highway network must be balanced against the environmental objectives of this plan.
Transport Policy 6
Transport Policy 6: In the design of new development and transport facilities the needs of pedestrians will be given similar weight to the needs of other road users. 11.5. Car Parking 11.5.1 The level of car parking provided in new development is critical to creating more sustainable development. Too little and the traffic generated can create problems on adjacent streets. Too much can increase congestion and delay public transport. The problem is most severe in existing settlements and at its worst in the Douglas area. 11.5.2 In respect of town centre office development, it has been the Department's usual practice to require the provision of one parking space per 50sq metres of nett office floor space, such parking spaces to be provided preferably on site but otherwise conveniently close to the site. The standard of 1 space per 50sq metres is based on: 1/3 staff walking or cycling: 1/3 travelling by public transport and 1/3 by private car. This provision is very often rather less than the demand created by the development. In the case of office developments outside of the town centre, the requirement is usually one parking space per 15sq metres of nett office floor space, a ratio which reflects more accurately the actual demand for parking space arising from the office use. The Douglas Local Plan did in fact invite consideration of other options whereby either the requirement should be increased such as to meet fully the demand for parking space, or the requirement should be reduced so that, with proper enforcement of on-street parking restrictions, fewer workers would come into town by car. 11.5.3 The long term target is to reduce the level of car parking required for town centre developments and seek to develop more sustainable staff and visitor transport plans including improved public transport, staff buses, shared and pooled cars, cycling and walking. Consideration should be given to the provision of cycle parking for staff and customers in non -residential development and to the provision of secure cycle stores in apartments. In the shorter term, the Department proposes the following general policy in respect of parking provision.
Transport Policy 7
Transport Policy 7: The Department will require that in all new development, parking provision must be in accordance with the Department's current standards. The current standards are set out in Appendix 7. 11.5.4 New development can have a significant impact in terms of the traffic generated by it and the impact on the various modes of travel. The Department considers that proposals which are likely to be significant traffic generators should be accompanied by a Transport Assessment(1) which should look at all modes of transport including access by public transport, cycling and on foot.
Environment Policy 4
protects biodiversity
uch as this, the breaks in the urban fabric and the features of nature which provide a sense of openness should be protected from development which would erode this (see Maps 3 and 10). Natural Environment Proposal 4 (Green Gap) Between the settlements of Glen Vine and Crosby, development which would erode the separation and detract from the openness between the settlements is unlikely to be supported. Douglas, Union Mills and Strang (see Maps 3, 4 and 8) Natural Environment Proposal 5 (Green Gap) Between the settlements of and Douglas, Union Mills and Strang, development which would erode the separation and detract from the openness between the settlements is unlikely to be supported. The Upland Environment The Manx Uplands are an iconic part of our landscape and heritage. Reference to the 'sweet mountain air' and 'green hills and rocks' are enshrined in our national anthem and the colours of the heather and gorse are woven into the very fabric of Manx tartan. The hills are a place of great beauty, yet for some they are also a place to work and for others a place to exercise or simply enjoy open space. Our Uplands are also home to plants and animals that whilst familiar to us, are rare and impor tant in a global and European context. Furthermore, the uplands are a rich repository of cultural and archaeological remains, which are sensitive to change and can easily be damaged by inappropriate development. Production of food is an important and obvi ous function of hill land. But surprisingly, the Manx hills provide everyday functions that most people take for granted. Peatlands, which cover most of our hills reduce the impacts of climate change by locking up carbon dioxide, collect and filter our drinking water and slow the passage of rainfall into streams and rivers, thus reducing downstream flood risk. These multiple uses are of great benefit to the economy of the Isle of Man and the well - being of its people. It is important that the hills continue to provide these benefits long into the future. Ensuring sustainable management of such a wide range of uses to the satisfaction of all interested parties whilst retaining functions essential to the well -being of the Isle of Man is of paramount importance. The Isle of Man Government is the owner and landlord for the majority of the Uplands in the East region and is therefore in a position to implement policy which will deliver the optimum range of ecosystem services. Appropriate and positive Upland management such as controlled rotational burning/cutting of heather and low intensity grazing helps to reduce the fuel load of the hill, provides firebreaks and reduces the risk of unplanned wildfires that further protects the biodiversity of the site, but also the vast amounts of carbon locked away in the peat soils. The majority of this work is carried out by The Department of Environment, Food & Agriculture's grazing and shooting tenants. The Manx Uplands are critically important from a habitat and biodiversity perspective. The hills in the East support a significant number of breeding hen harriers; however, other native Upland breeding birds such as curlew and red grouse have suffered severe declines in recent decades and as such are of high conservation concern. Strict control of access and recreational activity on vulnerable soils should be implemented to reduce soil erosion and subsequent carbon loss. Curlew and hen harriers are recognised as an internationally important species, while (within the EU) upland heather moorland is designated as a priority habitat. In order to ensure protection and positive management of the Uplands, the following proposal is appropriate: Environment Proposal 6 Uses of the Uplands that contribute to the management and preservation of this distinctive environment will be supported. Dark Skies On the Isle of Man, 26 Dark Sky Discovery Sites have been identified, of which nine are located in the East. They are classified as Milky Way Sites meaning that at these sites the Milky Way is visible to the naked eye. The sites are accessible and light pollution is limited. The following Dark Sky Discovery Sites are located within the East: • Port Soderick Upper Car Park • Port Soderick Brooghs, Little Ness Car Park • Mount Murray Golf Club • Onchan Park • West Baldwin Reservoir Car Park • Clypse Kerrowdhoo Reservoir Car Park • Conrhenny Car Park • Ballanette Nature Reserve • Axnfell Plantation Natural Environment Proposal 7 Proposals for development in the vicinity of Dark Sky Discovery Sites are to have minimal outdoor lighting and be encouraged to have a design response which is non-intrusive into the darkness of night. Baffling and directionality of lighting must be sensitive to contain any necessary lighting within a subject site only. Watercourses and Wetlands The collection of hills in the East has produced a network of mountain streams which gradually join and widen to become the rivers flowing out into Douglas Bay, Port Groudle a
Environment Policy 22
Development will not be permitted where it would unacceptably harm the environment
Environment Policy 22: Development will not be permitted where it would unacceptably harm the environment and/or the amenity of nearby properties in terms of: i) pollution of sea, surface water or groundwater; ii) emissions of airborne pollutants; and iii) vibration, odour, noise or light pollution. 7.17.2 In addition to the above, changes in the activities associated with the current permitted use of land or a building, which in themselves do not constitute development and therefore do not require planning permission, can have an adverse impact on adjacent properties by virtue of noise, light or general disturbance. For example the addition of security lig hting on a property may cause light pollution affecting adjacent properties and the wider area. The introduction of new activities into established parks and recreation areas can have an impact on neighbours. In such cases the Department would advocate t he person or organisation considering the change to give careful consideration to the potential impact of such activity in terms of location, siting and design.
Strategic Policy 11
housing needs of the Island
Strategic Policy 11: The housing needs of the Island will be met by making provision for sufficient development opportunities to enable 5,100 additional dwellings (net of demolitions), and including those created by conversion, to be built over the Plan period 2011 to 2026.
Green Gap Proposal 3
development which would erode the separation and detract from the openness between the two areas will not be permitted
Condition 1
1. The development hereby approved shall be begun before the expiration of four years from the date of this decision notice.
Condition 2
2. The development hereby approved shall not be occupied/brought into use unless the bat boxes, bird boxes, and Bee Bricks have been installed/constructed in accordance with details submitted.
Condition 3
3. Notwithstanding the details that have been submitted, the development hereby approved shall not commence until a detailed landscaping strategy which includes the creation of a long-term habitat management plan for the wildflower areas shown in the most up-to date landscape plans, has first been submitted to the Department in writing to be agreed.
Condition 4
4. Prior to the removal of Tree no. 4618 a Preliminary roost assessment by a suitably qualified ecologist shall be submitted to and approved in writing by the Department, as this tree was found to have potential roost features for bats in its trunk and is due to be removed.
Condition 5
5. The development hereby approved shall not be occupied/brought into use unless the stacked Log pile creation or a hibernaculum suitable for Common Lizard as detailed in the Proposed Site Plan dated October 2021 (Drawing no. 3), and referred to (with details shown) in Appendix VII of the Manx Wildlife Trust Preliminary Ecological Appraisal Report dated June 2021 have been installed/constructed in accordance with details submitted.
Condition 6
6. Prior to the commencement of the development hereby approved, a detailed external low level lighting scheme shall be submitted to and approved in writing by the Department.
Condition 7
7. Prior to the commencement of the development hereby approved (including site clearance), a Working Method Statement and eradication plan for Schedule 8 non-native invasive plant species shall be submitted to and approved in writing by the Department.
Condition 8
8. Prior to any works (including site clearance) commencing on the site, a Precautionary Working Method Statement for common lizard, common frog and breeding birds, shall be submitted to and approved in writing by the Department.
Condition 9
9. The Wildflower areas shown in the landscape plan (Drawing No. 06 Rev A) dated 18 February 2022, shall be created and managed via the methodology specified in the Habitat section in Table 1 of the Manx Wildlife Trust's Technical Note: Biodiversity Metric and Ecological Mitigation Plan - Netherby.
Condition 10
10. The existing trees marked for retention on the Outline Tree Protection Plan (Drawing No. OTP-201221) shall be retained in accordance with the approved details.
Condition 11
11. The replacement tree planting shall be carried out in accordance with the tree planting shown on drawing (06 Rev A) and the Outline Tree Protection (Drawing No. OTP150322, prepared by Manx Roots), submitted in support of the application.
Condition 12
12. No development shall commence on site until a programme of archaeological work, to include excavations where required, has been submitted to and approved in writing by the Department.
Condition 13
13. The development hereby approved shall not be brought into use unless the access, visibility, vehicular and pedestrian access and all parking and turning areas, have been provided and surfaced in accordance with the details shown on the approved plans (Drawing Nos. ITB16403-GA-007, and 03 Rev A).
Condition 14
14. No development in connection with the development hereby approved shall be occupied/brought into use unless the proposed foul sewage and surface water drainage system[s] have been provided in accordance with the approved plans (Drawing No. 16 Rev A received 28 February 2022, and 03 Rev A received 18 February 2022).
Condition 15
15. Except for excavation and demolition work, you must carry out any building work which can be heard at the boundary of the site only:
Condition 16
16. Notwithstanding the provisions of the Town and Country Planning (General Permitted Development) Order 2012 or any order amending, revoking or re-enacting that Order no means of enclosure, structures or other free standing buildings, other than that shown on the approved plans and other documents listed on this decision notice, and any drawings approved subsequently in writing by the Department pursuant to any conditions on this decision notice, shall be erected on the site without an express grant of planning approval from the Department.