3 Walberswick Street London Lambeth SW8 1XF Data via plota.co.uk

26/03040/FUL - Full Planning Permission Awaiting decision
Extensions & alterations

Proposal

Erection of a second-storey rear extension and the addition of a window to the mansard. Reduction from a double sliding door to a single door with a Juliet balcony Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
15 Oct 2026
Decision
Expected by 10 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 10 Dec 2026, from Lambeth's recent extensions.

Documents 30

Statements & assessments 4

PDF PLANNING FIRE SAFETY STATEMENT Supporting Docs · 20 Oct 2026 View ↗ PDF NOISE IMPACT ASSESSMENT Supporting Docs · 20 Oct 2026 View ↗ PDF DAYLIGHT OR SUNLIGHT ASSESSMENT Supporting Docs · 20 Oct 2026 View ↗ PDF DESIGN AND ACCESS STATEMENT Design & Access Statement · 20 Oct 2026 View ↗

Plans & drawings 20

PDF EXISTING BLOCK PLAN Plans · 20 Oct 2026 View ↗ PDF PROPOSED SIDE ELEVATION Plans · 20 Oct 2026 View ↗ PDF PROPOSED BLOCK PLAN Plans · 20 Oct 2026 View ↗ PDF EXISTING BLOCK PLAN HEIGHT DATUMS Plans · 20 Oct 2026 View ↗ PDF EXISTING GROUND FLOOR, FIRST FLOOR, SECOND FLOOR AND ROOF PLANS Plans · 20 Oct 2026 View ↗ PDF PROPOSED FRONT ELEVATION Plans · 20 Oct 2026 View ↗ PDF PROPOSED SIDE ELEVATIONS Plans · 20 Oct 2026 View ↗ PDF EXISTING FIRST FLOOR AND PROPOSED SECOND FLOOR PLANS Plans · 20 Oct 2026 View ↗ PDF PROPOSED BLOCK PLAN Plans · 20 Oct 2026 View ↗ PDF PROPOSED REAR ELEVATIONS Plans · 20 Oct 2026 View ↗ PDF PROPOSED SIDE WEST ELEVATION Plans · 20 Oct 2026 View ↗ PDF EXISTING WEST ELEVATION AO OWNERS CONTEXT Plans · 20 Oct 2026 View ↗ PDF PROPOSED GROUND FLOOR, FIRST FLOOR, SECOND FLOOR AND ROOF PLANS Plans · 20 Oct 2026 View ↗ PDF EXISTING SIDE ELEVATIONS Plans · 20 Oct 2026 View ↗ PDF PROPOSED GROUND FLOOR, FIRST FLOOR, SECOND FLOOR AND ROOF PLANS Plans · 20 Oct 2026 View ↗ PDF EXISTING REAR ELEVATION Plans · 20 Oct 2026 View ↗ PDF ADDITIONAL PLANCLOSET WING EXTENSION LOCATION PLANS Plans · 20 Oct 2026 View ↗ PDF LOCATION PLAN Plans · 20 Oct 2026 View ↗ PDF EXISTING SIDE WEST ELEVATION VIEWED FROM REAR OF SOUTH LAMBETH ROAD PROPERTIES Plans · 20 Oct 2026 View ↗ PDF EXISTING FRONT ELEVATION Plans · 20 Oct 2026 View ↗

Application forms 2

PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM Supporting Docs · 20 Oct 2026 View ↗ PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 20 Oct 2026 View ↗

Other documents 4

PDF SAP SUMMARY Supporting Docs · 20 Oct 2026 View ↗ PDF PARTY WALL IMPACT REPORT Supporting Docs · 20 Oct 2026 View ↗ PDF OS MAP OS Map · 20 Oct 2026 View ↗ PDF STRUCTURAL CALCULATIONS ? 3 Supporting Docs · 20 Oct 2026 View ↗

All documents on the council site ↗

Site constraints 7

In flood zones plus climate change
Inside the extent flood zones 2 and 3 could reach with climate change: the Central allowance for the 2080s on rivers, the Upper End allowance for sea level rise to 2125. From the sea. Defences are not counted.
The Environment Agency flood map for planning. Councils use it to decide when a flood risk assessment and the sequential test are needed. It is indicative and does not show whether a particular property will flood.
Flood map ↗
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 ↗
National infrastructure project 148 m away: Thames Tideway Tunnel
The site is 148 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: London Strategic Heat Main Project (at pre-application, 1039 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
3 listed buildings within 150 m
Nearest: 202-218, South Lambeth Road Sw8, Grade II, 44 m away · 3 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 3 with distances
Historic England ↗
Also on the record
Conservation area 74 m away: Albert Square; Inside the Lambeth 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 22 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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 4

Last sold for £1,640,000 in July 2025. Terraced house, freehold.

10 July 2025£1,640,000
30 August 2023£1,510,520
12 March 2021£915,000
17 June 1998£195,000

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

Building

Floor area169 m² (1,819 sq ft)
Energy ratingD (62 out of 100), could reach C
PropertyMid-terrace house, 6 habitable rooms
BuiltBefore 1900
HeatingAir source heat pump, underfloor, electric
WallsSolid brick, with internal insulation

From the energy performance certificate lodged in June 2023, 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
Full Planning Permission
Postcode
SW8 1XF
Received
15 Oct 2026
Validated
15 Oct 2026
Ward
Oval
Case officer
Show
Target decision
10 Dec 2026
Applicant
Show
Agent
Mimetico

Decision outlook

Day 13 of the 56-day target. Lambeth usually decides extensions by day 56.

Day 1343 days to the 56-day target
59%decided within 8 weeks
82%approved
835decided in the last year

Plota live figures for extensions decided by Lambeth in the last twelve months, from validation. Lambeth decision record →

Public comments

No public comments yet.

Last counted 22 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
10 Dec 2026
Env. assessment
No

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Refused
111 - 115 South Lambeth Road London SW8 1UZ
Erection of retractable pergola and enclosure with guillotine windows surrounding seating…
25/03300/FUL
2025 Approved
6 Walberswick Street London SW8 1XG
Erection of a rear mansard roof extension and installation of 1 rooflight to the front ro…
25/03322/FUL
2025 Approved
6 Walberswick Street London Lambeth SW8 1XG
Erection of a single storey ground floor extension, replacement of rear windows and two s…
25/03208/FUL
2025 Approved
33 Tradescant Road London SW8 1XD
Erection of flat roof over first floor to provide rear terrace accessed by new French doo…
25/02936/FUL
2025 Approved
45 St Stephen's Terrace London Lambeth SW8 1DL
Replacement of rear door and side lights to aluminium frame doors, with a like-for-like s…
25/02969/FUL
2025 Refused
6 Walberswick Street London SW8 1XG
Erection of a single storey ground floor extension, together with a second floor rear ext…
25/02056/FUL
2025 Withdrawn
33 Tradescant Road London SW8 1XD
Erection of flat roof over first floor to provide rear terrace accessed by new French doo…
25/01244/FUL
2025 Refused
139 South Lambeth Road London SW8 1XB
Erection of a 3-storey single dwelling house together with associated bin and bicycle sto…
25/00085/FUL
2024 Refused
139 South Lambeth Road London SW8 1XB
Erection of a 3-storey single dwelling house together with associated bin and bicycle sto…
24/02167/FUL
2024 Approved
27 Meadow Place London SW8 1XZ
Erection of timber fencing and iron balustrading to the rear roof, together with the erec…
24/00649/FUL
2023 Approved
16 Tradescant Road London SW8 1XE
Erection of a rear Mansard roof extension. Creation of a rear roof terrace with associate…
23/03004/FUL
2023 Approved
15 Walberswick Street London Lambeth SW8 1XF
Demolition of the rear extension and erection of a single storey ground floor rear/side i…
23/04020/FUL
2023 Approved
15 Walberswick Street London SW8 1XF
Erection of a single storey ground floor rear side infill extension.
23/03903/FUL
2023
30 Tradescant Road London Lambeth SW8 1XQ
Conversion of the property into one 3-bed residential unit and one x 2-bedroom unit, incl…
23/03612/FUL
2023 Approved
16 Tradescant Road London SW8 1XE
Erection of a rear mansard roof extension with two dormer windows and the installation of…
23/02501/FUL
2023 Refused
30 Tradescant Road London Lambeth SW8 1XQ
Conversion of the property into 2 residential units, including the conversion of the gara…
23/01903/FUL
2023 Refused
16 Tradescant Road London SW8 1XE
Erection of a rear roof extension with a juliet balcony,including the installation of two…
23/01418/FUL
2023 Refused
49 Tradescant Road London SW8 1XD
Erection of a single storey ground floor wrap around extension, together with the formati…
23/01428/FUL
2023 Refused
Telephone Kiosk Outside 14 Bishops House South Lambeth Road London
Display of one internally illuminated LCD display as part of a new Communication Hub unit…
23/00920/ADV
2023 Refused
Telephone Kiosk Outside 14 Bishops House South Lambeth Road London
Removal of existing enclosed telephone kiosk and installation of a new multifunctional Co…
23/00919/FUL
2016 Approved
19 Meadow Place London SW8 1XZ
Demolition of the existing rear extension and the erection of a ground floor single store…
16/02295/FUL
2016 Approved
212 South Lambeth Road London Lambeth SW8 1UX
Internal alterations of walls at lower and ground floors with the reinstatement of two fi…
16/01569/LB
2016 Approved
5-11 Walberswick Street London Lambeth SW8 1XF
Replacement of windows to front and rear elevations with PVC-framed double-glazed windows
16/00905/RG3
2016 Refused
43 Tradescant Road London Lambeth SW8 1XD
Replacement of windows to front, side and rear elevations with PVC-framed double-glazed w…
16/01242/RG3
2016 Refused
75 Tradescant Road London SW8 1XJ
Loft conversion involving installation of 2no. roof lights to front elevation, and the er…
16/00863/FUL
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
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 boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.