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Application No.: 25/90829/B Applicant: Mr & Mrs Lawrence & Vicki Weatherill Proposal: Erection of single storey extension to rear elevation, removal of existing conservatory, chimney, dormer and lean-to shed, replacement of windows and doors, re-roofing and change to render (in association with 25/00845/CON) Site Address: Paradise Mill Street Castletown Isle Of Man IM9 1AQ Planning Officer: Peiran Shen Expected Decision Level: Officer Delegation Recommended Decision: Permitted Date of Recommendation: 19.11.2025
C : Conditions for approval N : Notes attached to conditions C 1. The development hereby approved shall be begun before the expiration of four years from the date of this decision notice.
Reason: To comply with Article 26 of the Town and Country Planning (Development Procedure) Order 2019 and to avoid the accumulation of unimplemented planning approvals.
The proposal does not harm the character and appearance of the conservation area or neighbouring amenities. It is considered to comply with General Policy 2 and Environment Policy 35 of the Strategic Plan and the Residential Design Guide.
This approval relates to the documents and drawing no. 1, 2G, 3, 4, 5, which have been received on 5th September 2025.
_________________________________________________________________ Right to Appeal
It is recommended that the following organisations should NOT be given the Right to Appeal: Castletown Commissioners - No objection Manx Utitlity - Objection does not relate to material planning considerations
1.0 THE SITE - 1.1 The site is Paradise, Mill Street, Castletown, a detached house located to the west of Mill Street. The house consists of a two-storey hipped-roof main house and:
2.0 THE PROPOSAL - 2.1 The proposal is the demolition of the existing conservatory and mono-pitched-roof rear extension, the erection of a flat-roof rear extension with parapet and a lantern rooflight and the installation of a bifold door on the rear elevation of the existing side extension. - 2.2 The extension is the same width as the main house. There is a bi-fold door on the rear elevation and a casement window on the east elevation. - 2.3 The proposal also includes removing the existing chimneystacks on the main house and two windows on the side elevation, demolition of the existing lean-to extension and the dormer, replacing the existing roof and all existing windows, and changing the finishing of the house from pebble-dash to smooth render.
3.0 PLANNING HISTORY - 3.1 Certificate of Lawful development for a greenhouse and garage was APPROVED under PA 22/01092/LAW. - 3.2 Erection of conservatory was APPROVED under PA 01/00362/B.
4.0 PLANNING POLICY Site Specific - 4.1 The site is within an area designated as Predominantly Residential in the Area Plan for the South. - 4.2 The site is within the Castletown Conservation Area. Strategic Policy - 4.3 The Isle of Man Strategic Plan 2016 contains the following policies that are considered materially relevant to the assessment of this current planning application:
PPS and NPD
4.4 Planning Policy Statement 1/01 - Conservation of the Historic Environment of the Isle of Man is the only adopted PPS at the moment. It provides supplementary policy on developments within any conservation area.
5.0 OTHER MATERIAL CONSIDERATIONS Legislation - 5.1 Section 18(4) of the Town and Country Planning Act (1999) states, "(4) Where any area is for the time being a conservation area, special attention shall be paid to the desirability of preserving or enhancing its character or appearance in the exercise, with respect to any
buildings or other land in the area, of any powers under this Act". This sets out the approach to be taken in determining planning applications, which includes giving great weight to the asset's conservation when considering the impact of a proposed development on the asset. Given that the site is within a Conservation Area, the above requirements apply and appropriate consideration will be given in section 7.
Strategy and Guidance
5.2 The Residential Design Guide (July 2021) contains the following policies that are considered materially relevant to the assessment of this current planning application:
6.0 REPRESENTATIONS - 6.1 Castletown Commissioners have no objection to this application (23.09.2025). - 6.2 DoI Highway Services has not commented at the time of this report (19.11.2025). - 6.3 Manx Utilities wrote in (25.09.2025), reminding the applicant that surface water cannot be discharged into the foul or combined sewer network.
7.0 ASSESSMENT Elements of Assessment - 7.1 The key considerations of this application are its impact on the house itself, the character and streetscene of the area, and the amenities of the neighbours.
Conservation Areas Statutory Test
7.1 While sitting within a conservation area, the house is not of traditional character and therefore is not considered to contribute to the character of the conservation area. The proposal does not worsen the design of the house. The change from pebble-dash to render also brings the house's finish in line with the majority in the conservation area. Therefore, the proposal is considered to preserve the character of the conservation area and pass the test. Elements of Assessment - 7.2 The key considerations of this application are its impact on the house itself and the character and streetscene of the area and neighbouring amenities. Design of the House Itself - 7.3 The demolition elements and the replacement roof and windows are not considered to have an impact on the design of the house. The new extension, while appearing more modern with its flat roof design, would not stand out from the house after the change to smooth render. Character and Appearance - 7.4 Given 7.1 and 7.3, the proposal is considered to preserve the character and appearance of the conservation area. Neighbouring Amenities - 7.5 The new extension is single-storey and far enough from neighbouring properties that it is considered to have no additional overbearing or overshadowing impact. - 7.6 The new extension creates no new vantage point. Therefore, it is considered to have no additional overlooking impact.
8.0 CONCLUSION - 8.1 The proposal does not harm the character and appearance of the conservation area or neighbouring amenities. Therefore, the proposal is considered to comply with General Policy 2 and Environment Policy 35 of the Strategic Plan, Planning Circular 1/98, Planning Policy Statement 1/01 and and the Residential Design Guide and is recommended for an approval.
9.0 RIGHT TO APPEAL AND RIGHT TO GIVE EVIDENCE - 9.1 The Town and Country Planning (Development Procedure) Order 2019 sets out the process for determining planning applications (including appeals). It sets out a Right to Appeal (i.e. to submit an appeal against a planning decision) and a Right to Give Evidence at Appeals (i.e. to participate in an appeal if one is submitted). - 9.2 Article A10 sets out that the right to appeal is available to:
9.3 Article 8(2)(a) requires that in determining an application, the Department must decide who has a right to appeal, in accordance with the criteria set out in article A10. - 9.4 The Order automatically affords the Right to Give Evidence to the following (no determination is required):
I can confirm that this decision has been made by a Principal Planner in accordance with the authority afforded to that Officer by the appropriate DEFA Delegation and that in making this decision the Officer has agreed the recommendation in relation to who should be afforded interested person status and/or rights to appeal.
Decision Made : Permitted Date: 19.11.2025 Determining Officer
Signed : C BALMER Chris Balmer Principal Planner
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