Areas / Kensington and Chelsea
Architects in Kensington and Chelsea
From the Victorian terraces of Notting Hill and North Kensington to the stucco houses of Chelsea and South Kensington, most homes here are in conservation areas and are usually extended at the rear, in the roof or below ground.
RIBA Chartered Practice · ARB-registered architects · Extensions, lofts and planning drawings

- FreeInitial consultationA conversation about your project, and a first view of what's possible, before any fee is agreed.
- FixedFee for each stageEvery stage is priced in writing before it starts. No hourly billing.
- 3DSee the design firstYour design is shown in 3D before it's submitted, while changes are still easy.
- FreeResubmissionIf planning is refused, we revise and resubmit at no extra design fee. Conditions
Local planning points
Planning in Kensington and Chelsea
Checked October 2026. Planning policy changes, so we confirm the position for your address before you commit.
The borough has 38 conservation areas, which together cover nearly three quarters of it.
SourceThe council adopted its Local Plan 2024 on 24 July 2024.
SourceBasements are limited to one storey and no more than 50% of the garden, must not involve digging under a listed building, and need at least 1m of soil above them under gardens (Local Plan 2024 policy CD11).
SourceA borough-wide Article 4 direction has removed permitted development rights for basements under houses since 28 April 2016, so a basement under a house needs planning permission.
SourceAn Article 4 direction in parts of the borough has required planning permission for changing Class E commercial uses to homes since 27 July 2022.
SourceBorough-wide additional HMO licensing runs from 1 June 2023 to 31 May 2028.
Source
Postcodes
Kensington and Chelsea by postcode
4,335 postcodes in 12 postcode districts, 4.9 miles from our studio in Cricklewood.
- SW1W15% in Kensington and Chelsea
- SW1X47% in Kensington and Chelsea
- SW3all in Kensington and Chelsea
- SW5all in Kensington and Chelsea
- SW774% in Kensington and Chelsea
- SW10all in Kensington and Chelsea
- W25% in Kensington and Chelsea
- W8all in Kensington and Chelsea
- W96% in Kensington and Chelsea
- W1070% in Kensington and Chelsea
- W1185% in Kensington and Chelsea
- W1423% in Kensington and Chelsea
Where a postcode district is shared, neighbouring streets can fall under a different council. The checker below gives the answer for an exact postcode.
Council-wide figures from public planning records, not our own results. Every application is judged on its own merits.
Postcode checker
Which council decides your application?
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.
Services
What we draw in Kensington and Chelsea
- House extensions
- Loft conversions
- Basement conversions
- Planning permission
- Building regulations drawings
- Structural calculations
- Flat conversions
- Change of use
- New builds
- Interior design
Neighbourhoods we cover include Notting Hill, North Kensington, Holland Park, Earl's Court, Chelsea and South Kensington.
Neighbouring councils: Westminster, Hammersmith and Fulham, Ealing, Lambeth, Brent, Camden.