Arches 29-41 Castle Mews London NW1 8SY Data via plota.co.uk

2026/3235/P - Full Planning Permission REGISTERED
Commercial & major worksDemolitionCommercial premises

Proposal

Demolition of existing warehouse; external alterations to existing railway arches on east and west elevations; and associated works related to the continued use of the site as a builders merchant (Sui Generis), and/or Class B8 (Storage and Distribution) and/or Class E(g)(iii) (Light Industrial) uses. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
4 Aug 2026
Decision
Target date was 29 Sept 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 5 Dec 2026, from Camden's recent commercial and major works.

The consultation period closed on 6 Sept 2026.

Documents

View the documents on the council's website ↗

Site constraints 6

Harmood Street 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 ↗
2 Article 4 directions
Commercial, Business, and Service (Use Class E) to residential (Use Class C3) (outside CAZ) · 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 Named permitted development rights are withdrawn here.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
1 listed building 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.

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Important details

Council
Camden
Application type
Full Planning Permission
Postcode
NW1 8SY
Received
4 Aug 2026
Validated
4 Aug 2026
Ward
Camden Town, Haverstock
Case officer
Show
Applicant
Show
Agent
Montagu Evans
Leaseholder
Show

Decision outlook

Day 86 of the 56-day target. Camden usually decides commercial and major works by day 123.

Day 8637 days to the predicted decision (day 123)
31%decided within 8 weeks
96%approved
32%go to committee

Plota live figures for commercial and major works decided by Camden in the last twelve months, from validation. Camden decision record →

Consultation & key dates

Comments by
6 Sept 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
42 Harmood Street London NW1 8DP
Erection of single storey rear extension; raising ridge height of first floor rear closet…
2024/4768/P
2024 Approved
42 Harmood Street London NW1 8DP
REAR GARDEN: 1 x Fig (T1) - Fell to ground level.
2024/3358/T
2024 Approved
Arches 29-31 Castle Mews London NW1 8SY
Demolition of rear infills to 3 x arches.
2024/2921/P
2023 Approved
Heybridge Car Park Castle Road London NW1 8TD
Demolition of car park podium structure and associated works
2023/3595/P
2021 Approved
57 Hartland Road London NW1 8DB
Refurbishment and conversion of existing building to create a Class E unit at ground floo…
2021/2905/P
2022 Approved
68 Clarence Way London Camden NW1 8DG
Rear Extension, three replacement windows, changing window in rear garden-facing utility…
2022/5292/P
2023 Approved
29 Powlett Place London NW1 8DR
Erection of single storey outbuilding in rear garden.
2023/0722/P
2023 Approved
42 Harmood Street London NW1 8DP
Erection of rear extensions at ground and first floors and rooflights to rear slope
2023/1566/P
2023 Approved
71 Castle Road London NW1 8SU
Single storey side extension
2023/1387/P
2023 Approved
73 Clarence Way London Camden NW1 8DG
Replacement of 3 single-glazed timber sash windows to the rear extension of the house wit…
2023/0265/P
2022 Approved
87 Castle Road London NW1 8SU
Enlargement of the rooflight to front roofslope and installation of two windows on the si…
2022/4894/P
2022 Approved
73 Castle Road London NW1 8SU
Erection of single storey rear extension
2022/5251/P
2022 Approved
56 Harmood Street London Camden NW1 8DP
Erection of a garden room at the rear garden and relevant landscaping works.
2022/2739/P
2022 Approved
73 Castle Road London Camden NW1 8SU
Erection of dormer roof extension
2022/4863/P
2022 Refused
73 Castle Road London Camden NW1 8SU
Erection of dormer roof extension
2022/4047/P
2022 Approved
27 Powlett Place London NW1 8DR
REAR GARDEN: 1 x Sycamore (T1) - Reduce branches over no. 29 by 2m - 3m, remove lowest ti…
2022/3780/T
2022 Refused
43 Hadley Street London Camden NW1 8TA
Roof extension with front roof terrace.
2022/1659/P
2021 Refused
42 Harmood Street London NW1 8DP
Rear extensions at ground and first floor level, insertion of rooflights to rear roofslop…
2021/4434/P
2021 Approved
16 Powlett Place London NW1 8DR
Erection of a part single-storey, part two-storey rear extension.
2021/1464/P
2020 Refused
16 Powlett Place London NW1 8DR
Erection of two-storey rear extension.
2020/3918/P
2016 Refused
77 Clarence Way London NW1 8DG
Erection of a two-storey side infill extension to replace the existing in connection with…
2016/3171/P
2016 Approved
52 Hadley Street London NW1 8TA
Single storey side infill extension with internal alterations
2016/3194/P
2016 Refused
74 Hadley Street London NW1 8TA
Erection of roof extension and second floor rear extension
2016/1536/P
2016 Refused
49 Hartland Road London NW1 8DB
Erection of roof extension to dwellinghouse.
2016/3025/P
2016 Approved
Holy Trinity Church Hartland Road Kentish Town LONDON NW1 8DE
The retention of the existing Glass Reinforced Plastic louvres to bell tower of the churc…
2016/1152/P
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

Leaseholders: 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.