24 December 2025 · Delegated
3, Sunnybank Avenue, Onchan, Isle Of Man, IM3 3bn
Permission was granted for a side extension, alterations to doors and fenestration, and a replacement garden shed with log store at a detached bungalow on Sunnybank Avenue, Onchan. Part of the work was retrospective. The property is a 1970s-1980s single-storey bungalow finished in painted render, sitting on an elevated plot above road level and largely enclosed by mature hedging. Officers assessed whether the extension and external changes were acceptable in principle in a residential area, and whether they maintained visual harmony with the surrounding suburban character. The application was approved on 24 December 2025 under delegated powers, with two conditions attached to the permission.
The application was approved by delegated decision. Officers considered the extension and alterations acceptable in principle within a predominantly residential area, and found that the proposal respected the character of the dwelling and the surrounding suburban environment. Effects on neighbouring properties in terms of outlook, privacy, and overshadowing were also assessed as part of the decision.
Development Control
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
General presumption in favour of extensions to existing properties
Efficient use of land and 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
Development focussed in 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:
Development to safeguard character of existing towns and villages
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.
Design and visual impact
Strategic Policy 5: New development, including individual buildings, should be designed so as to make a positive contribution to the environment of the Island. In appropriate cases the Department will require planning applications to be supported by a Design Statement which will be required to take account of the Strategic Aim and Policies. 4.4 Economy 4.4.1 The Spatial Strategy identifies the Major Employment Areas around the Island. While the majority of business and employment is focused around the Douglas Metropolitan Area, there are other major employment areas at Castletown, the Airport/Freeport, Peel, Ramsey and Jurby. The Department considers the distribution of employment areas provides a spread of employment opportunities around the Island. While recognising the opportunities for small scale local employment within existing centres it is considered new employment should, in the main, be concentrated within existing settlements or those major employment areas referred to in the Island Spatial Strategy and illustrated on the Key Diagram. Existing Local and new Area Plans will provide detailed boundar ies for these areas. From time to time Government may judge it appropriate to offer financial incentives to encourage economic activity or investment in particular parts of the Island.
character and need to adhere to local distinctiveness
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.''
Parking Provisions
Access and parking
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.
Condition 1
The development hereby approved shall be begun before the expiration of four years from the date of this decision notice.
Condition 2
Prior to the commencement of the development hereby approved, full details of all proposed external materials and finishes (including render, fibre cement panels, roofing membrane, and fenestration) shall be submitted to and approved in writing by the Department. The development shall thereafter be carried out in accordance with the approved details and retained as such.
