Architects in NW1
Camden Town, Primrose Hill, Regent's Park and Somers Town. A high share of listed buildings and conservation areas.
RIBA Chartered Practice · ARB-registered architects · Extensions, lofts and planning drawings

Planning authority
Which council decides in NW1?
NW1 is split between 2 councils, so the council that decides your application depends on your street. 1,654 postcodes, 3.7 miles from our studio.
| Council | Share of NW1 postcodes |
|---|---|
| Camden | 80% (1,320) |
| Westminster | 20% (334) |
By postcode sector
| Sector | Postcodes | Council |
|---|---|---|
| NW1 0 | 172 | Camden |
| NW1 1 | 194 | Camden |
| NW1 2 | 99 | Camden |
| NW1 3 | 134 | Camden |
| NW1 4 | 187 | Camden (mostly; some streets in another council) |
| NW1 5 | 133 | Westminster |
| NW1 6 | 164 | Westminster |
| NW1 7 | 146 | Camden |
| NW1 8 | 219 | Camden |
| NW1 9 | 206 | Camden |
Postcode checker
Check your exact postcode
Type any postcode in the 33 London boroughs we cover. We'll tell you which council handles planning there and show you the local planning points.
Local planning points
If your home is in Camden
Camden has 40 conservation areas, covering about half of the borough.
SourceDormers should be subordinate to the roof slope, sit within it and keep even distances to the ridge, eaves and side parapet walls; rear extensions should pass the 45-degree and 25-degree daylight tests and leave a reasonably sized garden (Home Improvements CPG, 2021).
SourceBasements should be no more than one storey, cover no more than 50% of each garden, extend into the garden no further than 50% of the depth of the house from the main rear wall, and be less than 1.5 times the house's footprint (Local Plan policy A5, 2017).
Source
Local planning points
If your home is in Westminster
There are 56 conservation areas in Westminster.
SourceThe City Plan 2019-2040 (2026) was adopted on 21 January 2026 after a partial review, replacing the 2021 version; work on a full new City Plan began in 2026.
SourceThe 2026 City Plan brings in a retrofit-first approach before demolition, and for the first time developments of fewer than 10 homes must contribute to affordable housing.
Source
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