**Document:** 10 Planning Statement 03
**Application:** 25/90876/B — Removal of existing lean-to store, replacement of conservatory with part single-storey and part double-storey extensions to rear elevation of existing dwellinghouse
**Decision:** Permitted
**Decision Date:** 2025-11-18
**Parish:** Malew
**Document Type:** report / planning_statement
**Source:** https://planningportal.im/a/93198-castletown-3-westham-lea-replacement-conservatory/documents/1142580

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# 10 Planning Statement 03

04 Chapter 8 Housing

PLANNING POLICY The boundary between neighbouring 4 Westham Lea and the rear of the terrace on 'The Crofts' forms the western border of the Castletown Conservation Area. The application site is not within the Conservation Area. The proposals are in line with the following planning policies of the Strategic Plan 2016:

Strategic Policy 1, Development should make the best use of resources by:

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:

8.12.1 Extensions to Dwellings in built up areas or sites designated for residential use.

- (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 and amenity standards; and
- (c) being located so as to utilise existing and planned infrastructure, facilities and services.

As a general policy, in built up areas not controlled by conservation Area or Registered Building policies, there will be a general 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

- (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 maneuvering 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; (i) is not on contaminated land or subject to unreasonable risk of erosion or flooding;

By reason of the dwellings location and orientation within its plot; the distance from neighbouring properties, and careful consideraton of the massing of the rear extension the proposal will not have an adverse impact on the surrounding area or neighbours.

The proposal reconfigures and extends an existing dwelling, improving the amenity of the dwelling.

Residential Design Guide July 2021 4.0 Householder Extensions, specifically

- 4.2 Potential Visual Impact of an Extension upon the Existing House
- 4.3 Potential Visual Impact upon the Streetscene/Landscape

- 4.6 Rear Extensions
- 4.7 Flat Roof Extensions 4.7 Side Extensions

The proposal has been carefully designed so that it has no impact on the street scene. A rear extension the proposal has been designed to contrast and appear subserviant to the existing dwelling will appear subordinate to the existing dwelling.

- (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.

The proposal is in line with the land-use zoning. The proposed rear extension is not pubically visible; is designed to be subservient to the existing dwelling; uses sustainable natural materials; incorporates views of existing mature trees and improves the amenity of the existing property.

## 10

### 334_Westham Lea • Castletown • Mr + Mrs Ranscombe horncastle:thomas

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a r c h i t e c t s + d e s i g n e r s ISSUE 18/09/2025 Planning Statement 03 A3

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*Data sourced from the Isle of Man public planning register under the [Isle of Man Open Government Licence](https://www.gov.im/about-this-site/open-government-licence/).*
*Canonical page: https://planningportal.im/a/93198-castletown-3-westham-lea-replacement-conservatory/documents/1142580*