18 Acton Street London WC1X 9ND Data via plota.co.uk

2026/1938/P - Approval of Details Approved
Commercial & major worksExtensions & alterationsNew homesSolar & renewables

Proposal

Details pursuant to Condition 9 (construction interface with London Underground) of planning permission dated 21/07/2023 (for: Erection of mansard roof extension to provide a single residential dwelling (Class C3). Inclusion of green roof and PV panels as well as cycle parking on the ground floor). Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
27 May 2026
✓
Approved
16 Jul 2026

Approved on 16 Jul 2026 · Delegated · Last checked 19 Sept 2026

Documents

View the documents on the council's website ↗

Site constraints 10

Bloomsbury 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
Basements · Commercial, Business, and Service (Use Class E) to residential (Use Class C3) (in CAZ). Named permitted development rights are withdrawn here.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 ↗
38 listed buildings within 150 m of the postcode pin
Nearest: Numbers 24 and 26 and Attached Railings, Grade II, about 3 m from the postcode pin · 38 Grade II
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show all 38 with distances
Historic England ↗
Central activities zone
The core of central London in the London Plan.
Offices, culture and the other strategic functions of the centre take priority over new housing here.
Also on the record
Wider setting of protected view 2A.1 Parliament Hill summit to St Paul's Cathedral; 3A.1 Kenwood viewing gazebo to St Paul's Cathedral; Radon affected area, class 2; National infrastructure project about 1703 m away: Thames Tideway Tunnel; Inside the Camden built-up area; Public transport access: PTAL 6b (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, the Planning Inspectorate, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI), 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.

Building

Floor area150 m² (1,615 sq ft)
Energy ratingG (asset rating 229)
UseB1 Offices and Workshop businesses
HeatingHeating and Natural Ventilation

From the energy performance certificate lodged in April 2014, 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
Approval of Details
Postcode
WC1X 9ND
Received
27 May 2026
Validated
27 May 2026
Ward
Kings Cross
Case officer
Show
Decision
Granted 16-07-2026
Decision date
16 Jul 2026
Decision level
Delegated
Applicant
Show
Agent
Linear Insight Ltd
Freehold owner
Show

How this decision compares

Decided in 50 days from validation, 73 days faster than Camden's median of 123 for commercial and major works. Approved, as 96% of commercial and major works here are.

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 →

Historical activity at this location

27 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2020 Approved
Alterations to ground floor side entrance including installation of full height glazing…
2020/3220/P
2019 Approved
Notification for Prior Approval for change of use from premises in light industrial use (…
2019/0254/P
Within ~100m

Nearby activity

2024 Approved
2 Acton Street London WC1X 9NA
Change of use to the basement and ground floor of the site from Class E (Office) to Class…
2024/2813/P
2024 Refused
115 King's Cross Road London WC1X 9NH
Change of use of the ground and lower ground floors from hot food takeaway to residential…
2024/3366/P
2023 Refused
Basement And Ground Floor Flat 26, Swinton Street London WC1X 9NX
Erection of a two storey rear extension following the demolition of the existing conserva…
2023/4443/P
2023 Refused
Basement And Ground Floor 26 Swinton Street London WC1X 9NX
Demolition of existing conservatory and rear walls, chimney breast, internal stud walls a…
2023/5120/L
2024 Approved
29 Acton Street London WC1X 9LZ
REAR GARDEN: 1 x Bay (T1) - Fell as close as possible to ground level and apply appropria…
2024/3215/T
2024 Approved
27 Acton Street London WC1X 9LZ
REAR GARDEN: 1 x Hazel (T3) - Lift and cut back to boundary by 1m - 1.5m.
2024/3217/T
2021 Approved
115 King's Cross Road London WC1X 9NH
Erection of a mansard style roof extension to facilitate the formation of a 2nd and 3rd f…
2021/4444/P
2022 Refused
103 King's Cross Road London WC1X 9LP
Construction of 4th floor mansard roof extension to provide a 1-bed self-contained dwelli…
2022/2623/P
2023 Approved
135 Flat A King's Cross Road London WC1X 9BJ
Erection of mansard roof extension to create a 3 bedroom residential flat (Class C3) with…
2023/0891/P
2023 Approved
41 - 43 Acton Street London WC1X 9LZ
REAR GARDEN: 1 x Sycamore (T1) - Crown reduce height by 3m. Reduce laterals by 2m - 3m. T…
2023/2973/T
2023 Approved
23 Acton Street London WC1X 9LX
REAR GARDEN: 1 x Sycamore (T1) - Fell to ground level and treat stump.
2023/2281/T
2022 Approved
18-18a Acton Street London WC1X 9ND
Erection of mansard roof extension to provide a single residential dwelling (Class C3). I…
2022/4877/P
2022 Approved
4 Swinton Street London Camden WC1X 9NX
Retrospective consent is sought to remediate unconsented internal developments. Works inc…
2022/4885/L
2022 Approved
107 King's Cross Road LONDON WC1X 9LR
Change of use of basement (Class E) to studio flat (Class C3) (Retrospective) plus coveri…
2022/4333/P
2023 Approved
15 Frederick Street London WC1X 0NF
REAR GARDEN: 1 x London Plane (frs.n2) - Reduce canopy to previous reduction points (3m…
2023/0815/T
2022 Approved
26 Frederick Street London WC1X 0ND
Reinstatement of internal doorway (door, frame and architrave) to ground floor flat.
2022/0519/L
2022 Approved
29 Swinton Street London Camden WC1X 9NW
All existing painted surfaces to be redecorated. Windows and doors will be repaired/ over…
2022/3395/L
2022 Withdrawn
Flat A, 135 King's Cross Road London WC1X 9BJ
Erection of mansard roof extension, extension at fourth floor level to the existing three…
2022/2687/P
2021 Approved
15 Acton Street London WC1X 9LX
Replacing spindles to railings, painting all existing windows, replacing SVPS and RWPS, a…
2021/5760/L
2021 Approved
15 Acton Street London WC1X 9LX
Replacing spindles to railings, painting all existing windows, replacing SVPS and RWPS, a…
2021/4605/P
2016 Withdrawn
17 Frederick Street London WC1X 0NF
Basement damp-proofing works (external walls, party walls and spine walls). Damp-proofing…
2016/4269/L
2016 Withdrawn
56 Frederick Street London WC1X 0ND
CR Basement damp-proofing works (external walls, party walls and spine walls). Damp-proof…
2016/4274/NEW
2016 Withdrawn
64 Frederick Street London WC1X 0ND
CR Basement damp-proofing works (external walls, party walls and spine walls). Damp-proof…
2016/4273/NEW
2016 Refused
107 King's Cross Road London WC1X 9LR
Erection of single storey rear extension at first floor level.
2016/0254/P
2016 Refused
105 King's Cross Road London WC1X 9LR
Change of use of the first and second floors from public house (Class A4) to create 1x2 b…
2016/0759/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

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.