23 April 2021 · Delegated
The Warren, Clanna Road, Santon, Isle Of Man, IM4 2hp
Permission was granted to demolish the existing dwelling at The Warren, Clannagh Road, Santon, and replace it with a new dwelling, along with associated landscaping. The site sits on the western side of Clannagh Road, set below road level, with neighbouring properties Clannagh House and Ballacorris Croft nearby. The officer assessed the proposal against policies on the siting and size of replacement dwellings and found it acceptable: the new dwelling would occupy the same footprint as the existing one, and the overall increase in size across the house and garage combined was just 9%. The application was approved on 23 April 2021 under delegated authority, subject to four conditions.
The application was permitted on 23 April 2021 under delegated authority. The replacement dwelling was found to comply with policy requirements on siting and size, as it would sit on the same footprint as the existing house and the combined increase in floor area over the house and garage was only 9%.
Housing Policy 14
provides guidance on the erection of replacement dwellings
Housing Policy 14: Where a replacement dwelling is permitted, it must not be substantially different to the existing in terms of siting and size, unless changes of siting or size would result in an overall environmental improvement; the new buildi ng should therefore generally be sited on the "footprint" of the existing, and should have a floor area (1), which is not more than 50% greater than that of the original building (floor areas should be measured externally and should not include attic space or outbuildings). Generally, the design of the new building should be in accordance with Policies 27 of the present Planning Circular 3/91, (which will be revised and issued as a Planning Policy Statement). Exceptionally, permission may be granted for bui ldings of innovative, modern design where this is of high quality and would not result in adverse visual impact; designs should incorporate the re -use of such stone and slate as are still in place on the site, and in general, new fabric should be finished to match the materials of the original building. Consideration may be given to proposals which result in a larger dwelling where this involves the replacement of an existing dwelling of poor form with one of more traditional character, or where, by its design or siting, there would be less visual impact. 8.11.3 It is unlikely that permission will be given for permanent replacement of dwellings which were never intended to have a permanent residential use, such as chalets and other structures built of materials for only temporary or seasonal use. 8.12 Extensions to Residential Property 8.12.1 Extensions to Dwellings in built up areas or sites designated for residential use As a general policy, in built up areas not controlled by Conservation Area or Registered Building policies, there will be a gener al presumption in favour of extensions to existing property where such extensions would not have an adverse impact on either adjacent property or the surrounding area in general. (3) Floor Space is defined in Appendix 1 (1) Floor Area is defined in Appendix 1 8.12.2 Extensions to properties in the countryside As there is a general p olicy against development in the Island's countryside, it is important that where development exists, either in an historic or recently approved form, it should not, when altered or extended detract from the amenities of the countryside. Care therefore, must be taken to control the size and form of extensions to property in the countryside. In the case of traditional properties, the proportion and form of the building is sensitively balanced and extensions of inappropriate size or proportions will not be ac ceptable where these destroy the existing character of the property. In the case of non -traditional properties, where these are of poor or unsympathetic appearance, extensions which would increase the impact of the property will generally not be acceptable . It may be preferable to consider the redevelopment of non -traditional dwellings or properties of poor form with buildings of a more traditional style and in these cases, the Department may consider an increase in size of the replacement property over and above the size of the building to be replaced, where improvements to the appearance of the property would justify this.
Environment Policy 4
protects ecology
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
Condition 1
The development hereby approved shall be begun before the expiration of four years from the date of this decision notice.
Condition 2
Notwithstanding the provisions of the Town and Country Planning (Permitted Development) Order 2012 (or any Order revoking and/or re-enacting that Order with or without modification), no garages or car ports shall be erected within the curtilage of the dwelling hereby approved, other than that expressly authorised by this approval, without the prior written approval of the Department.
Condition 3
All planting, seeding or turfing comprised in the approved details of landscaping must be carried out in the first planting and seeding seasons following the completion of the development or the occupation of the dwelling, whichever is the sooner. Any trees or plants which within a period of five years from the completion of the development die, are removed, or become seriously damaged or diseased must be replaced in the next planting season with others of a similar size and species.
Condition 4
Prior to the commencement of the alteration of any of the hedges or banks within the site, a Precautionary Method Statement for common lizard must be submitted in writing and approved in writing by the Department and the development must be undertaken in accordance with these approved details. The statement must set out how the alterations to the hedge will be undertaken so as not to damage lizards or their habitat and must also take account of the presence of any Schedule 8 species of the Wildlife Act 1990.