Track the latest renovation and development activity in Westminster. We monitor planning applications across Westminster to help you understand what's possible on your street.
| Address | Project Type | Status | Date | Description |
|---|---|---|---|---|
| 54 Lord North Street, SW1 | Rear Extension | Approved | 24 Mar 2026 | Full-width single-storey rear extension with roof lantern |
| 33 Page Street, SW1 | Roof Terrace | Approved | 21 Mar 2026 | Formation of terrace on existing flat roof with external staircase access |
| 54 Great Peter Street, SW1 | Roof Terrace | Pending | 17 Mar 2026 | Formation of roof terrace at rear second floor level with glass balustrade |
| 51 Cowley Street, SW1 | Full Refurbishment | Approved | 5 Mar 2026 | Whole-house renovation including new heating system and upgraded insulation |
| 75 Gayfere Street, SW1 | Listed Building Consent | Refused | 3 Mar 2026 | Internal and external alterations to Grade II listed building for new kitchen and bathroom |
| 62 Page Street, SW1 | Full Refurbishment | Pending | 20 Feb 2026 | Complete internal refurbishment including new mechanical and electrical services |
| 48 Gayfere Street, SW1 | Listed Building Consent | Approved | 15 Feb 2026 | Internal and external alterations to Grade II listed building for new kitchen and bathroom |
| 26 Great College Street, SW1 | Rear Extension | Approved | 6 Feb 2026 | Part single, part two-storey rear extension with new kitchen-diner |
| 47 Smith Square, SW1 | Basement Conversion | Approved | 27 Jan 2026 | Single-storey basement extension with front and rear lightwells |
| 49 Barton Street, SW1 | Full Refurbishment | Approved | 26 Jan 2026 | Complete internal refurbishment including new mechanical and electrical services |
| 51 Barton Street, SW1 | Basement Conversion | Approved | 24 Jan 2026 | Single-storey basement extension with front and rear lightwells |
| 16 Page Street, SW1 | Rear Extension | Approved | 17 Jan 2026 | Single-storey rear extension with flat roof and glazed lantern light |
| 66 Smith Square, SW1 | Basement Conversion | Approved | 14 Jan 2026 | New basement level with front lightwell, providing additional living accommodation |
| 75 Vincent Square, SW1 | Basement Conversion | Approved | 10 Jan 2026 | Conversion of existing cellar to habitable accommodation with new lightwell |
| 63 Cowley Street, SW1 | Rear Extension | Approved | 6 Jan 2026 | Full-width single-storey rear extension with roof lantern |
| 72 Lord North Street, SW1 | Rear Extension | Approved | 23 Aug 2025 | Single-storey rear extension under permitted development rights |
| 18 Gayfere Street, SW1 | Listed Building Consent | Approved | 28 Jul 2025 | Installation of discreet secondary glazing to all windows of listed building |
| 37 Old Queen Street, SW1 | Full Refurbishment | Approved | 16 Apr 2025 | Whole-house renovation including new heating system and upgraded insulation |
| 49 Old Queen Street, SW1 | Listed Building Consent | Approved | 16 Feb 2025 | Installation of discreet secondary glazing to all windows of listed building |
Westminster has seen strong renovation activity over the past twelve months, with rear extensions accounting for 26% of all planning applications. Full Refurbishments follow at 21%, with listed building consents making up a further 21% of submissions. This pattern reflects the character of Westminster's housing stock and the aspirations of homeowners in the SW1 postcode.
As a designated conservation area, Westminster requires all external alterations to be sympathetically designed and built using appropriate materials. Planning officers at Westminster Council pay close attention to proposals that affect the streetscape, particularly along prominent roads such as Smith Square and Lord North Street. Despite these additional requirements, our data shows a 84% approval rate for applications in the area — evidence that well-prepared submissions continue to succeed.
The most active streets for development in Westminster include Smith Square, Lord North Street, Cowley Street, where homeowners are investing in both extending and upgrading their properties. Full refurbishments and change-of-use applications reflect the mixed residential and commercial character of the area, with many conversions creating high-specification apartments.
Properties in Westminster (SW1) typically range from period terraces to substantial detached homes. Whether you are considering a straightforward loft conversion or a comprehensive basement dig, early engagement with Westminster Council's planning department — and appointing an architect familiar with local policy — will significantly improve your chances of a smooth approval. Our team maintains an outstanding track record across the SW1 postcode.
Westminster Council manages planning applications across Westminster and the wider borough. As a conservation area, Westminster is subject to additional planning controls. Permitted development rights may be restricted under Article 4 directions, meaning proposals that would normally not require planning permission may need a formal application.
For advice on what you can build in Westminster, see our Planning & Permissions guide. You can also review our planning track record to see our approval rates across London boroughs.
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