Art Gallery 194 - 198 Railton Road London SE24 0JT Data via plota.co.uk

25/03729/DET - Approval of Details Approved

Proposal

Approval of details pursuant to condition 9 (detailed specification of the green roof) of planning permission (Erection of a two storey extension at roof level and associated external alterations to the existing building to accommodate workspaces) granted on 31.07.2018. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
2 Dec 2025
✓
Approved
26 Jan 2026

Approved on 26 Jan 2026 · Delegated Decision · Last checked 3 Oct 2026

Associated applications 2

  • Part of

    FullApprovedcouncil archive

    Conditions 9 discharged

    • ConditionsApproval of details pursuant to condition 9 (detailed specification of the green roof)This application25/03729/DET

Site constraints 8

Article 4 direction
Modified Direction 3 - Town Centres. Named permitted development rights are withdrawn here.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: Lambeth 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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Registered park or garden 124 m away: Brockwell Park; 1 listed building within 150 m; Inside the Lambeth built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square; Town centre 92 m away: Herne Hill.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 2 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.

Building

Floor area565 m² (6,082 sq ft)
Energy ratingB (asset rating 39)
UseNon-residential Institutions: Libraries, Museums, and Galleries
HeatingHeating and Natural Ventilation

From the energy performance certificate lodged in November 2024, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Lambeth
Application type
Approval of Details
Postcode
SE24 0JT
Received
2 Dec 2025
Validated
2 Dec 2025
Ward
Herne Hill Loughborough Junction
Case officer
Show
Target decision
27 Jan 2026
Decision
Grant Permission
Decision date
26 Jan 2026
Decision level
Delegated Decision
Applicant
Show
Agent
CarverHaggard Architects
Freehold owner
Show

Public comments

No public comments yet.

Last counted 3 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Comments by
19 Dec 2025
Statutory expiry
27 Jan 2026
Env. assessment
No
Lambeth
Planning Authority Score
2.7/10
Poor
#242 of 296 councils
Relevant to this application:
Householder decisions

Lambeth ranks #164 out of 296 councils for householder decision speed. 47% of applications have the time limit extended, above the 41% national average. Lambeth is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.

One of the strictest councils
only 81% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Lambeth decision statistics
Based on MHCLG data, the year to March 2026
78%
Overall approval rate
Below avg (87%) #274 of 296
81%
Householder approved
Below avg (90%) #273 of 296
62%
Decided in 8 weeks
Below avg (63%) #164 of 296
47%
Extended time limit
Above avg (41%) #209 of 296
46%
Minor dwellings approved
70 decided (1-9 homes)
100%
Major dwellings approved
9 decided (10+ homes)
42%
Change of use approved
53 decided
1,784
Total decisions
396 refused in the year to March 2026

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.