Track the latest renovation and development activity in Highgate. We monitor planning applications across Haringey to help you understand what's possible on your street.
| Address | Project Type | Status | Date | Description |
|---|---|---|---|---|
| 18 Broadlands Road, N6 | Basement Conversion | Approved | 25 Mar 2026 | Excavation to create new basement level with lightwell and swimming pool |
| 16 Highgate Hill, N6 | Mansard Extension | Refused | 7 Mar 2026 | Mansard extension to rear roof slope with new dormer windows |
| 65 Highgate Hill, N6 | Garden Room | Approved | 27 Feb 2026 | Construction of outbuilding in rear garden for ancillary accommodation |
| 78 Hampstead Lane, N6 | Full Refurbishment | Approved | 20 Feb 2026 | Full renovation of period property including restoration of original features |
| 9 North Road, N6 | Basement Conversion | Approved | 12 Feb 2026 | Conversion of existing cellar to habitable accommodation with new lightwell |
| 14 The Grove, N6 | Rear Extension | Approved | 24 Jan 2026 | Part single, part two-storey rear extension with new kitchen-diner |
| 7 Bishopswood Road, N6 | Side Return Extension | Approved | 15 Jan 2026 | Side return and rear extension creating open-plan kitchen-dining space |
| 64 Cholmeley Park, N6 | Basement Conversion | Approved | 12 Jan 2026 | New basement level with front lightwell, providing additional living accommodation |
| 8 Bishopswood Road, N6 | Basement Conversion | Approved | 2 Jan 2026 | Conversion of existing cellar to habitable accommodation with new lightwell |
| 68 Broadlands Road, N6 | Mansard Extension | Pending | 15 Dec 2025 | Construction of rear mansard roof extension to create additional floor |
| 60 Hampstead Lane, N6 | Listed Building Consent | Pending | 10 Sep 2025 | Installation of discreet secondary glazing to all windows of listed building |
| 28 Bishopswood Road, N6 | Basement Conversion | Approved | 15 May 2025 | Full basement dig-out creating cinema room, gym and utility space |
Highgate has seen strong renovation activity over the past twelve months, with basement conversions accounting for 42% of all planning applications. Mansard Extensions follow at 17%, with garden rooms making up a further 8% of submissions. This pattern reflects the character of Highgate's housing stock and the aspirations of homeowners in the N6 postcode.
As a designated conservation area, Highgate requires all external alterations to be sympathetically designed and built using appropriate materials. Planning officers at Haringey Council pay close attention to proposals that affect the streetscape, particularly along prominent roads such as The Grove and Hampstead Lane. Despite these additional requirements, our data shows a 75% approval rate for applications in the area — evidence that well-prepared submissions continue to succeed.
The most active streets for development in Highgate include The Grove, Hampstead Lane, North Road, where homeowners are investing in both extending and upgrading their properties. Basement conversions remain particularly popular among larger detached and semi-detached properties, often incorporating lightwells, cinemas, and additional living space beneath existing footprints.
Properties in Highgate (N6) 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 Haringey 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 N6 postcode.
Haringey Council manages planning applications across Highgate and the wider borough. As a conservation area, Highgate 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 Highgate, 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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