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Roof extension including increase in roof height to provide a self contained studio flat approved in Westminster

Development Type

Roof extension/ loft conversion
Conversion into flats
Appeals
New Houses / Flats

Borough

Westminster

Eagle House, St John's Wood Terrace, London, NW8 6JJ

Before

After

Development Type

Roof extension, new build flat

 

Proposed Development

Roof extension, including increase in roof height to provide a self contained studio flat in Westminster

 

4D Planning's role

4D Planning were instructed to appeal a refusal from another firm for the construction of a roof extension to create a new residential unit in the St John's Wood Conservation Area. We produced the appeal, liaised with the Planning Inspector and overturned the refusal. We were then instructed to prepare a planning application to increase the height of the extension to maximise the potential of the new flat. Our architectural designers produced 3-dimensional renders and isometric views of the property to prove that the increase in height will not be noticeable from street level. Westminster City Council granted planning permission. We then produced the Building Regulations for Building Control approval.

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Successful Approval for Roof Extension Including Increase Roof Height to Create Self-Contained Studio Flat in Westminster

4D Planning secured planning approval for a roof extension including an increase in roof height to create a self-contained studio flat in Westminster Council. Despite initial refusal by another planning agent and architect, a strategic appeal and well-prepared documentation prepared by 4D Planning led to a successful outcome.

 

Challenges in Roof Extension Including Increase Roof Height to Create Self-Contained Studio Flat in Westminster Borough

The initial application, submitted by a different firm, was rejected. 4D Planning took over, appealed the decision, and successfully overturned the refusal, proving the feasibility of the extension within Westminster’s conservation area guidelines.

 

Planning and Design Strategy for Roof Extension Including Increase Roof Height to Create Self-Contained Studio Flat

To ensure approval, 4D Planning developed detailed architectural drawings, 3D renders, and isometric views to demonstrate that the increased roof height would remain unobtrusive from street level, addressing visual impact concerns. We created a series of views from different vantage points at street level to demonstrate to Westminster Council in the best possible way that the increase in size of the roof top structure will not be harmful to the character of the property or street scene.

 

Compliance and Execution of Roof Extension Including Increase Roof Height to Create Self-Contained Studio Flat

Beyond securing planning permission, 4D Planning also managed Building Regulations documentation, ensuring full compliance with the Building Control regulations. 

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