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124 Robertson Street London Lambeth SW8 3TZ

26/00696/FULFull Planning PermissionApproved
Full

Approved on 29 April 2026

4 conditions

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Erection of a mansard roof extension with two front and two rear windows, including two rear roof lights.

Received
5 March 2026
Ward
Clapham Town
Agent
Paulo Afonso Architect
  1. Received5 Mar
  2. Validated5 Mar
  3. Consult.2 Apr
  4. Target30 Apr
  5. Decided29 Apr

Decided in 55 days (council typically 56)

About this application

This is a full planning application for an extension at 124 Robertson Street London Lambeth SW8 3TZ. Lambeth has handled 398 applications of this type. This one was decided in 55 days. The site is in the Central conservation area, with 20 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 209 applications across Clapham Town. We hold 1,525 applications in total for the SW8 postcode area.

70% of full applications at London Borough of Lambeth were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
SW8 3TZ
Application type
Full Planning Permission
Scale / size
Small

Planning application dates

Date validated
5 March 2026
Consultation expiry
2 April 2026
Consultation end
2 April 2026
Neighbour consultation end
2 April 2026
Target decision date
30 April 2026

Applicant and agent

Agent
Paulo Afonso Architect
Agent address
6 Tierney Terrace Tierney road London SW2 4QN United Kingdom

Planning decision

Statutory period
56 days

Additional information

Comments
0
Documents
20
Constraints
3

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 3: High probability (rivers and sea)
Also checked, none recorded (24)

flood storage areas, conservation areas, listed buildings, Article 4 directions, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source: Lambeth

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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