33 Rochester Square London NW1 9RZ Data via plota.co.uk

2026/4828/P - Householder Application New application

Proposal

Erection of a mansard style roof extension, incorporating a rear roof terrace. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
3 Nov 2026
Decision
Expected by 29 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 24 Dec 2026 and 15 Jan 2027, from Camden's recent extensions.

Comments are open until 24 Nov 2026

Comment on this application ↗

Site constraints 6

Camden Square conservation area
Demolition needs planning permission and permitted development is restricted.
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 ↗
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 Named permitted development rights are withdrawn here.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 ↗
Also on the record
Inside the Camden built-up area; Public transport access: PTAL 5 (very good), TfL 2023, for the 100 m square; Designated open space 14 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 5 November 2026. 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.

Sales history 3

Last sold for £680,000 in October 2013. Flat or maisonette, leasehold.

10 January 2019£16,000Other property, freehold. Recorded as a transfer outside a standard sale
18 October 2013£680,000
30 July 2004£301,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area73 m² (786 sq ft)
Energy ratingD (65 out of 100)
PropertyMid-terrace maisonette, 4 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in April 2011, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Important details

Council
Camden
Application type
Householder Application
Postcode
NW1 9RZ
Received
3 Nov 2026
Validated
3 Nov 2026
Ward
Camden Square
Case officer
Show
Applicant
Show
Agent
Studio Manifest
Freehold owner
Show

Decision outlook

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

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
24 Nov 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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.

Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.