57 Belsize Park London NW3 4EH Data via plota.co.uk

2026/3386/P - Certificate of Lawfulness (Existing) REGISTERED
Admin / proceduralCommercial premises

Proposal

Existing use of the property as a single planning unit for a mixed use comprising flexible long term residential accommodation (Class C3 and Sui Generis) and short term guest accommodation (Class C1). Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
14 Aug 2026
Decision
Target date was 9 Oct 2026

Under consideration

No decision has been issued yet. A decision is expected by 9 Oct 2026.

The consultation period closed on 7 Aug 2026.

Documents

View the documents on the council's website ↗

Site constraints 6

Belsize 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 ↗
3 Article 4 directions
Belsize Conservation Area Non-immediate Article 4 · Belsize Conservation Area (various properties) · 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 Named permitted development rights are withdrawn here.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
5 listed buildings within 150 m of the postcode pin; Inside the Camden built-up area; Public transport access: PTAL 6a (excellent), 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 6 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.

Sales history 1

Last sold for £855,095 in September 2018. Terraced house, freehold.

13 September 2018£855,095Recorded as a transfer outside a standard sale

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

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Other new applications on this street

17 Aug 2026Approved

Flat 2nd Floor Right 67 Belsize Park London NW3 4EH

Installation of rooflight to front roofslope [retrospective]

2026/3424/P
7 Oct 2026Pending

Flat 1st Floor, 3 Belsize Park London NW3 4ET

Installation of railings to first-floor front and rear external terrace areas, r...

2026/4331/P
5 Oct 2026Approved

Belsize Park House 59 - 60 Belsize Park London NW3 4EJ

DD 5 Day Notice REAR GARDEN: 1 x Unknown (T1) - Fell to ground level.

2026/4325/T
23 Jun 2026Pending

Flat 5 14 Belsize Park London NW3 4ES

Erection of dormer extensions to the front, side and rear roof slopes with an in...

2026/2383/P

Nearby new applications

27 Oct 2026Pending

20 Lyndhurst Gardens London NW3 5NR

REAR GARDEN: 1 x Bay (Laurus nobilis) (T1) - Reduce height 2m. Reduce lateral sp...

2026/4755/T
26 Oct 2026Pending

Flat Ground Floor 4 Strathray Gardens London NW3 4NY

REAR GARDEN: 3 x Poplars (T1, T2 & T3) - Reduce crown to previous points. FRONT ...

2026/4731/T
26 Oct 2026Pending

20 Fitzjohn's Avenue London NW3 5NA

REAR GARDEN: Group of Limes (G5) - Prune overhanging branches to boundary line a...

2026/4722/T
23 Oct 2026Pending

19 Daleham Gardens London NW3 5BY

REAR GARDEN: 1 x Persian Ironwood (T1) - Reduce crown by up to 2.5m.

2026/4683/T
23 Oct 2026Pending

13 Belsize Crescent London NW3 5QY

Partial details pursuant to condition 6 A (platform lift, railing and gates sect...

2026/3686/P
22 Oct 2026Pending

29 Adamson Road London Camden NW3 3HT

Details of tree protection measures pursuant to Condition 5 (Tree Protection) of...

2026/4622/P

Important details

Council
Camden
Application type
Certificate of Lawfulness (Existing)
Postcode
NW3 4EH
Received
14 Aug 2026
Validated
14 Aug 2026
Ward
Belsize
Case officer
Show
Applicant
Show
Agent
Carter Jonas
Freehold owner
Show

Consultation & key dates

Comments by
7 Aug 2026

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2024 Approved
Garden Flat 33 Buckland Crescent London NW3 5DJ
REAR GARDEN: 1 x Sycamore (T1) - Reduce back most recent previous points. 1 x Laburnum (T…
2024/2379/T
2024 Approved
26 College Crescent London NW3 5LH
(TPO REF: 24H-T48) FRONT GARDEN: 1 x Sycamore (T1) - Thin crown density by 15%. Remove ep…
2024/5528/T
2024 Approved
Flat 1st Floor 54 Belsize Park London NW3 4EE
Installation of railings to rear elevation at first floor level.
2024/1511/P
2023 Approved
91a Belsize Lane London NW3 5AU
Repair and replacement works to paved patio area and lower level stairs to lower ground f…
2023/5302/P
2024 Approved
91a Belsize Lane London NW3 5AU
Repair and replacement works to paved patio area and lower level stairs to lower ground f…
2024/0680/L
2024 Approved
Flat A 91 Belsize Lane London NW3 5AU
Erection of a garden store, decking and low level concrete plinth in rear garden.
2024/1085/P
2024 Approved
Flat Lower Ground Floor 8 Buckland Crescent London NW3 5DX
REAR GARDEN: 1 x Purple Leafed Plum (Prunus cerasifera 'Pissardii') (T1) - Reduce crown t…
2024/1493/T
2023 Approved
Flat Basement Rear And Ground Floor 37 Buckland Crescent London NW3 5DJ
REAR GARDEN: 1 x Sycamore (T1) - Reduce height by up to 4m, reduce overhanging into numbe…
2023/4547/T
2023 Approved
35A Buckland Crescent London NW3 5DJ
REAR GARDEN: 4 x Hornbeam (T1 - T4) - Reduce height by up to 2m, reduce side over 35 by u…
2023/4115/T
2023 Approved
Ground Floor Flat 56 Belsize Park London NW3 4EH
Enlargement and replacement of rear doors and windows at ground floor level
2023/3088/P
2023 Approved
29 Buckland Crescent London NW3 5DJ
FRONT GARDEN: 1 x Cherry (T1) - Reduce by 25%, approx. 2.5m from height and width to bala…
2023/3158/T
2023 Approved
Flat A 27 Buckland Crescent London NW3 5DH
FRONT GARDEN: 1 x Lime (T2) - Reduce by 2m - 3m from height and width back to previous po…
2023/3167/T
2023 Approved
Flat A 27 Buckland Crescent London NW3 5DH
FRONT GARDEN: 1 x Sycamore (T1) - Reduce by 2m - 3m from height and width back to previou…
2023/3159/T
2023 Approved
Garden Flat 66 Belsize Park London NW3 4EH
FRONT GARDEN: 1 x Lime (T1) - Reduce back to previous reduction points.
2023/3059/T
2023 Approved
64 Belsize Park London NW3 4EH
FRONT GARDEN: 1 x Gleditsia (T1) - Reduce by approx 1.5m from height and width back to pr…
2023/3049/T
2023 Approved
51 Belsize Park London NW3 4EE
REAR GARDEN: 1 x Ash (T1) - Reduce by 1.5m circa and remove 1 x overextended lateral back…
2023/2734/T
2023 Approved
6 Buckland Crescent London NW3 5DX
FRONT GARDEN: 1 x Lime - Crown reduce all new growth back to the previous reduction point…
2023/2558/T
2023 Approved
57 Belsize Park London Camden NW3 4EH
Conversion of 23 self-contained residential units to 19. Erection of 3x replacement large…
2023/0789/P
2023 Approved
Flat Basement And Ground Floor 91 Belsize Lane London NW3 5AU
Approval of details in respect of Condition 5 (rear extension materials) of listed buildi…
2023/1698/L
2023 Approved
55 Belsize Park London NW3 4EE
FRONT GARDEN: 1 x Robinia (T1) - Reduce lateral growth only by up to 2m branch lengths. C…
2023/1707/T
2016 Approved
87 Belsize Lane London London Camden NW3 5AU
Replace rear conservatory with new rear infill extension, replace rear rooflights with si…
2016/2089/P
2016 Approved
87 Belsize Lane London NW3 5AU
Demolition of existing conservatory and proposed new rear extension, internal alterations…
2016/2197/L
2016 Approved
67 Belsize Park London NW3 4EH
Demolition of existing ground floor and partial first floor rear wall and construction of…
2016/1145/P
2016 Approved
27A Buckland Crescent London NW3 5DH
(TPO Ref:C530) FRONT GARDEN: 1x Sycamore - Reduce back to previous pruning points whilst…
2016/0741/T
2016 Approved
27A Buckland Crescent London NW3 5DH
REAR GARDEN: 3x London Plane - Reduce back to previous pruning points 1x Elder - Remove s…
2016/0738/T
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
Source: MHCLG planning statistics · See full council rankings

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 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.