52 Monkton Street London Lambeth SE11 4TX Data via plota.co.uk

26/02450/LDCP - Certificate of Lawful Use proposed Awaiting decision
Extensions & alterations

Proposal

Certificate of lawfulness (proposed) with respect to the replacement of the rear double door with single door and casement window plus replacement of the existing glazed roof on the ground floor rear extension with new glazed roof. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
25 Aug 2026
Decision
Expected by 20 Oct 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 20 Oct 2026, from Lambeth's recent extensions. The consultation period closed on 1 Oct 2026.

Documents 10

Statements & assessments 1

PDF FIRE SAFETY STATEMENT Supporting Docs · 25 Aug 2026 View ↗

Plans & drawings 8

PDF PROPOSED ROOF PLAN Plans · 25 Aug 2026 View ↗ PDF EXISTING ELEVATION (REAR) Plans · 25 Aug 2026 View ↗ PDF BLOCK PLAN OF THE SITE Plans · 25 Aug 2026 View ↗ PDF EXISTING FLOOR PLAN Plans · 25 Aug 2026 View ↗ PDF EXISTING ROOF PLAN Plans · 25 Aug 2026 View ↗ PDF PROPOSED ELEVATION (REAR) Plans · 25 Aug 2026 View ↗ PDF THE LOCATION PLAN OS Map · 25 Aug 2026 View ↗ PDF PROPOSED LOWER GROUND FLOOR PLAN Plans · 25 Aug 2026 View ↗

Application forms 1

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 25 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 6

Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
Walcot 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.
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.
19 listed buildings within 150 m
Nearest: 18-28, St Mary's Gardens Se11, Grade II, 42 m away · 19 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 19 with distances
Historic England ↗
Also on the record
Inside the Lambeth built-up area.
Not affected
Not green belt · No scheduled monument at the site

Checked on 24 September 2026. Historic England, the Environment Agency, Natural England 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 5

Last sold for £1,235,000 in September 2022. Terraced house, freehold.

28 September 2022£1,235,000
14 September 2012£910,000
1 October 2010£725,000
17 April 2002£535,000
10 August 2000£255,500

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

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Important details

Council
Lambeth
Application type
Certificate of Lawful Use proposed
Postcode
SE11 4TX
Received
25 Aug 2026
Validated
25 Aug 2026
Ward
Kennington
Case officer
Show
Applicant
Show
Agent
Peter Couper Architects

Decision outlook

Day 41 of the 56-day target. Lambeth usually decides extensions by day 56.

Day 4115 days to the 56-day target
59%decided within 8 weeks
82%approved
828decided 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 2 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Comments by
1 Oct 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 Approved
31 Sullivan Road London Lambeth SE11 4UH
Erection of a single-storey ground floor rear extension with a flat EPDM roof, including…
25/03907/FUL
2025 Approved
29 Sullivan Road London Lambeth SE11 4UH
Single storey ground floor rear and side extension with the installation a roof light to…
25/03905/FUL
2025 Approved
8 St Mary's Walk London SE11 4UA
Replacement of existing front and rear single glazed sash windows with double glazed timb…
25/01199/LB
2025 Approved
8 St Mary's Walk London SE11 4UA
Replacement of existing front and rear single glazed sash windows with double glazed timb…
25/01198/FUL
2025 Refused
29 Oakden Street London SE11 4UQ
Creation of a roof terrace, together with associated works to Flat 2.
25/00862/FUL
2024 Approved
16 Oakden Street London SE11 4UG
Replacement of existing single glazed timber sash windows with double glazed timber sash…
24/03642/FUL
2024 Withdrawn
Triangular Open Space St Mary's Gardens London
1) Cherry 2) Silver Birch cherry 3) Copper Birch Trees identified in plan 4 Crown reducti…
24/03549/TCA
2024 Refused
16 Oakden Street London SE11 4UG
Replacement of existing single glazed timber sash windows with double glazed timber sash…
24/01167/FUL
2024 Approved
24 St Mary's Gardens London SE11 4UD
Erection of a lower ground floor single storey infill extension to the rear of the proper…
24/00770/FUL
2024 Approved
24 St Mary's Gardens London SE11 4UD
Erection of a lower ground floor single storey infill extension to the rear of the proper…
24/00771/LB
2023 Approved
33 St Mary's Gardens London SE11 4UF
Erection of a single storey ground floor rear/side infill extension with alterations of e…
23/03401/FUL
2023 Refused
Triangular Open Space St Mary's Gardens London
T1: Cherry tree, identified on plan WF2023/01 - Tree surgeon advice is to reduce crown by…
23/03509/TPO
2023 Refused
Triangular Open Space St Mary's Gardens London
Golden holly tree - Tree surgeon advised a 20% crown reduction
23/03510/TPO
2023 Refused
Triangular Open Space St Mary's Gardens London
Himalayan Birch tree - Tree surgeon advised a 20% crown reduction
23/03511/TPO
2023 Withdrawn
32 St Mary's Gardens London Lambeth SE11 4UF
Erection of a basement under the rear outrigger and rear patio, replacement of patio door…
23/02300/FUL
2023 Approved
31 Oakden Street London SE11 4UQ
Insertion of a new window opening to the ground floor rear elevation.
23/02038/FUL
2023 Refused
33 St Mary's Gardens London SE11 4UF
Erection of a single storey ground floor side/rear infill extension with 4 roof lights an…
23/02022/FUL
2023 Refused
34 Monkton Street London SE11 4TX
Installation of sliding doors to the rear ground floor elevation.
23/02068/FUL
2023 Approved
71 Monkton Street London SE11 4TX
T1: x1 Loquat, located in the rear garden. Suggested work - crown reduction to deal with…
23/02102/TCA
2023 Approved
31 Oakden Street London Lambeth SE11 4UQ
1 x Avacado tree (T1) - remove.
23/00969/TCA
2017 Approved
13 Heralds Place London SE11 4NP
Replacement of all existing timber windows/doors with new PVC windows/doors
17/01015/FUL
2016 Approved
63 Monkton Street London SE11 4TX
Replacing the existing non-traditional elments with traditional materials and design for…
16/05588/FUL
2016 Approved
7A Dryden Court (formerly Known As Units 1A And 1B 7 Dryden Court), Unit 2 And Store 1C 7 Dryden Court, Renfrew Road London SE11 4NH
Construction of brickwork planters with railings to the north and south elevations, repla…
16/02470/FUL
2016 Refused
5 St Mary's Walk London Lambeth SE11 4UA
Erection of a single storey rear infill extension at the existing rear extension and the…
16/00659/CLLB
2016 Approved
43 St Mary's Gardens London Lambeth SE11 4UF
To crown reduce 1 x Sycamore tree to rear of property back to previous reduction points.
16/00951/TCA
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