Basement Flat & Flat Raised Ground Floor 46 Primrose Hill Road London NW3 3AA Data via plota.co.uk

2026/4314/P - Certificate of Lawfulness (Proposed) REGISTERED

Proposal

Amalgamation of two self-contained flats to form a self-contained maisonette on lower ground and raised ground floor. Data via plota.co.uk

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View original council record ↗Last checked 7 Oct 2026, 10:37

Application progress

✓

Received

around 6 Oct 2026

Decision

Expected by 1 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 27 Nov 2026 and 18 Dec 2026, from Camden's recent extensions.

The consultation period closed on 6 Oct 2026.

Documents

View the documents on the council's website ↗

Site constraints 7

Article 4 direction

Basements. Named permitted development rights are withdrawn here.

An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.

Air quality management area: Camden AQMA

The council has declared the area as failing an air quality objective.

Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.

Council record ↗

Local nature reserve about 187 m away: Adelaide

Work nearby can need a habitats assessment.

Harm to a protected site is only accepted where there is no alternative and an overriding public interest.

Conservation area about 3 m away: Belsize

The edge of the area; work outside it can still affect its setting.

The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.

Council document ↗

Also on the record

4 listed buildings within 150 m of the postcode pin; Inside the Camden built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square.

Not affected

Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 7 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council: Camden
Application type: Certificate of Lawfulness (Proposed)
Postcode: NW3 3AA
Received: around 6 Oct 2026
Validated: 6 Oct 2026
Ward: Primrose Hill
Case officer: Show
Applicant: Show
Agent: CSE Consulting

Decision outlook

Day 3 of the 56-day target. Camden usually decides extensions by day 59.

prediction

Day 356 days to the predicted decision (day 59)

48%decided within 8 weeks

94%approved

10%go to committee

Plota live figures for extensions decided by Camden in the last twelve months, from validation. Camden decision record →

Consultation & key dates

Comments by: 6 Oct 2026

Camden

Planning Authority Score

3.1/10

Poor

#231 of 296 councils

Relevant to this application:

Householder decisions

Camden is slower than most councils at deciding householder applications, ranking #242 out of 296. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).

Slower than most councils

for householder decisions

These figures are council-wide context, not a prediction for this application. View full council performance

Camden decision statistics

Based on MHCLG data, the year to March 2026

88%

Overall approval rate

Above avg (87%) #149 of 296

88%

Householder approved

Below avg (90%) #215 of 296

49%

Decided in 8 weeks

Below avg (63%) #242 of 296

41%

Extended time limit

Below avg (41%) #158 of 296

90%

Minor dwellings approved

467 decided (1-9 homes)

80%

Major dwellings approved

10 decided (10+ homes)

93%

Change of use approved

46 decided

1,973

Total decisions

234 refused in the year to March 2026