18 Colby Road London Southwark SE19 1HA Data via plota.co.uk

26/AP/2375 - Householder Application Approved
Extensions & alterations

Proposal

Garage conversion, window and door replacement, and alterations to the fenestration Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
7 Aug 2026
✓
Validated
10 Aug 2026
✓
Approved
24 Sept 2026

Approved on 24 Sept 2026 · Delegated Panel - Simple · Last checked 24 Sept 2026

Documents 8

Decision & officer reports 3

PDF CR-R00-PR-004 PROPOSED SECTION PLANS Decision - Plans · 10 Aug 2026 View ↗ PDF CR-R00-PR-002 PROPOSED FLOOR PLANS Decision - Plans · 10 Aug 2026 View ↗ PDF CR-R00-PR-003 PROPOSED ELEVATIONS Decision - Plans · 10 Aug 2026 View ↗

Statements & assessments 1

PDF FIRE SAFETY STATEMENT Fire Statement · 7 Aug 2026 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application - Form (Without Personal data) · 7 Aug 2026 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM CIL - GIA Form · 7 Aug 2026 View ↗

Consultation & comments 1

PDF FILE COPY - NEIGHBOUR NOTIFICATION+LIST Neighbour Notification List · 24 Aug 2026 View ↗

Other documents 1

PDF VALID APPLICATION LETTER WITH INVOICE Valid Application Letter · 24 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 6

Air quality management area: Southwark 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 ↗
Local nature reserve 227 m away: Dulwich Upper Wood
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Also on the record
Conservation area 75 m away: Gipsy Hill; Inside the Southwark built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square; Designated open space 13 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 October 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.

Sales history 3

Last sold for £632,500 in December 2025. Semi-detached house, freehold.

19 December 2025£632,500
20 July 2001£154,500
27 June 1996£67,500

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

Building

Floor area81 m² (872 sq ft)
Energy ratingD (62 out of 100), could reach C
PropertySemi-detached house, 4 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2018, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Southwark
Application type
Householder Application
Postcode
SE19 1HA
Received
7 Aug 2026
Validated
10 Aug 2026
Ward
Dulwich Wood
Parish
Dulwich
Case officer
Show
Target decision
4 Oct 2026
Decision
Householder - GRANTED
Decision date
24 Sept 2026
Decision level
Delegated Panel - Simple
Applicant
Show
Agent
Freedom Homes Architects

How this decision compares

Decided in 45 days from validation, 6 days faster than Southwark's median of 51 for extensions. Approved, as 93% of extensions here are.

75%decided within 8 weeks
93%approved
657decided in the last year

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

Public comments

No public comments yet.

2 neighbours consulted · Last counted 24 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
4 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

2024 Approved
27 Colby Road London Southwark SE19 1HA
Construction of a side/rear dormer to facilitate a loft extension. Replacement windows/do…
24/AP/3104
2024 Withdrawn
5 Colby Road London Southwark
Works to tree with a TPO: T1. Sycamore Tree. 15 metres in height. 9 metres in width. Cut…
24/AP/3489
2024 Approved
Basement Flat 23 Colby Road London Southwark SE19 1HA
Construction of single storey rear extension at lower ground floor level.
24/AP/2415
2024 Approved
43 Dulwich Wood Avenue London Southwark SE19 1HG
Construction of a single storey rear extension
24/AP/2425
2024 Approved
29A Dulwich Wood Avenue London Southwark SE19 1HG
Proposed tree works: Fell diseased tree in severe decline diagnosed with sooty bark disea…
24/AP/1599
2024 Approved
53 Dulwich Wood Avenue London Southwark SE19 1HG
Conversion of integral garage, rear ground floor and loft extension, replacement windows…
24/AP/1017
2024 Refused
The Garvens 57 Dulwich Wood Avenue London Southwark
Works to Trees with a TPO:T3 Oak - removeThe tree works are proposed to stop the influenc…
24/AP/0061
2024 Approved
43 Dulwich Wood Avenue London Southwark SE19 1HG
Dormer extension to the rear, with two conservation grade rooflights in the rear roof, in…
24/AP/0124
2023 Refused
110A - 122 Gipsy Hill London Southwark SE19 1PL
Formation of self-service car wash bay including 2.7m high screens.
23/AP/2439
2023 Approved
51 Dulwich Wood Avenue London Southwark SE19 1HG
Tree works 5 day notification: A group of five lime Tilia x europaea a sycamore Acer pseu…
23/AP/2206
2023 Approved
10A Colby Road London Southwark SE19 1HA
Replacement of front, side and rear windows to all flats with double glazed white coloure…
23/AP/1564
2022 Approved
10 Oakfield Gardens London Southwark SE19 1HF
Construction of a single-storey lean-to side extension to replace the existing. Replaceme…
22/AP/2922
2022 Approved
29A Dulwich Wood Avenue London Southwark SE19 1HG
T1 Sycamore. Crown thin by 20% including the removal of dead wood, lifting of low branche…
22/AP/2213
2021 Approved
27 Dulwich Wood Avenue London Southwark SE19 1HG
Construction of a single storey side extension.
21/AP/4400
2021 Approved
130 Gipsy Hill London Southwark
Conversion of 2no studio flats (C3) to 1no one-bedroom flat (C3) at second floor level.
21/AP/4016
2020 Approved
1 Colby Mews London Southwark SE19 1PP
Internal alterations to provide 2 x 2 bedroom units at second floor level, with additiona…
20/AP/3517
2020 Approved
29A Dulwich Wood Avenue London Southwark SE19 1HG
Crown thin by 20% including the removal of dead wood, lifting of low branches, and necess…
20/AP/1667
2020 Approved
Land Adjacent To 29 Dulwich Wood Avenue London Southwark SE19 1HG
Rear roof extension to provide a second floor extension to provide a storage mezzanine wi…
20/AP/0007
2019 Approved
130 Gipsy Hill London Southwark
Roof extension and alterations to create a studio flat in the roofspace, cycle storage, r…
19/AP/7174
2019 Approved
130 Gipsy Hill London Southwark SE19 1PL
Alterations to the fenestration of the building on all elevations
19/AP/2694
2017 Approved
51 Dulwich Wood Avenue London SE19 1HG
T1 & T2: Two Lime trees in front garden - Crown thin by 20%, lift low branches to clear r…
17/AP/0874
2016 Approved
17 Colby Road London SE19 1HA
Replacement of single storey attached garage (original) with double storey side extension
16/AP/5065
2016 Approved
1 And 2 Colby Mews London SE19 1PP
Demolition of the existing derelict buildings and erection of a three storey building com…
16/AP/4917
2016 Approved
Flat 3 134 Gipsy Hill London SE19 1PW
Construction of a rear dormer extension and terrace.
16/AP/4429
2016 Withdrawn
1 And 2 Colby Mews London SE19 1PP
Demolition of the existing derelict buildings and erection of three storey building compr…
16/AP/0874
Southwark
Planning Authority Score
7/10
Good
#64 of 296 councils
Relevant to this application:
Householder decisions

Southwark is faster than most councils at deciding householder applications, ranking #54 out of 296. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Southwark decision statistics
Based on MHCLG data, the year to March 2026
92%
Overall approval rate
Above avg (87%) #93 of 296
95%
Householder approved
Above avg (90%) #92 of 296
78%
Decided in 8 weeks
Above avg (63%) #54 of 296
37%
Extended time limit
Below avg (41%) #122 of 296
92%
Minor dwellings approved
259 decided (1-9 homes)
86%
Major dwellings approved
14 decided (10+ homes)
82%
Change of use approved
38 decided
1,622
Total decisions
132 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.