15 Colnbrook Street London Southwark SE1 6EZ Data via plota.co.uk

26/AP/1114 - Householder Application Approved

Proposal

first-floor rear extension to existing outrigger; lowering & reinstatement of front parapet entablature; repair and re-glazing of existing windows; replacement of rear basement window with French doors; installation of Air Source Heat Pump and building services upgrades; associated internal alterations, repairs, and landscaping. Data via plota.co.uk

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View original council record ↗Last checked 22 Sept 2026, 07:53

Street View

Application progress

✓

Received

20 Apr 2026

✓

Validated

7 May 2026

✓

Approved

21 Sept 2026

Approved on 21 Sept 2026 · Delegated Panel - Complex · Last checked 22 Sept 2026

Documents 56

Decision & officer reports 3

PDF ENG-2509-SK-01 REV P7 OUTLINE SERVICES DESIGN - BASEMENT & GROUND FLOORS Decision - Plans · 21 Sept 2026 View ↗ PDF 421-SE1 6EZ - URB - ZZ - XX - DR - A - 2002 - R11 PLANS PROPOSED GROUND, BASEMENT, FIRST Decision - Plans · 21 Sept 2026 View ↗ PDF ENG-2509-SK-02 REV P6 OUTLINE SERVICES DESIGN - FIRST & SECOND FLOORS Decision - Plans · 17 Jul 2026 View ↗

Statements & assessments 7

PDF 421 - SE1 6EZ DESIGN & ACCESS STATEMENT Design and Access statement · 21 Sept 2026 View ↗ PDF ARBORICULTURAL IMPACT ASSESSMENT AND METHOD STATEMENT Tree survey or Arboricultural implications · 14 Aug 2026 View ↗ PDF 421 - SE1 6EZ REV 3 DESIGN & ACCESS STATEMENT Design and Access statement · 17 Jul 2026 View ↗ PDF Fire Statement Fire Statement · 28 Apr 2026 View ↗ PDF DESIGN AND ACCESS STATEMENT Plan - Superseded · 20 Apr 2026 View ↗ PDF HERITAGE IMPACT ASSESSMENT (REVISED VERSION) Heritage statement · 20 Apr 2026 View ↗ PDF ARBORICULTURAL IMPACT ASSESSMENT AND METHOD STATEMENT Tree survey or Arboricultural implications · 20 Apr 2026 View ↗

Plans & drawings 34

Application forms 2

PDF CIL - GIA Form CIL - GIA Form · 28 Apr 2026 View ↗ PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application - Form (Without Personal data) · 20 Apr 2026 View ↗

Consultation & comments 1

PDF FILE COPY - NEIGHBOUR NOTIFICATION+LIST Neighbour Notification List · 8 May 2026 View ↗

Site constraints 12

Grade II listed: Numbers 2-18 and Attached Railings

List entry 1385430 · The pin is inside its outline · 10 more listed buildings within 150 m (10 Grade II)

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 the other 10 with distances

18 mNumbers 3-11 and Attached RailingsGrade II
19 mNumbers 13-35 and Attached RailingsGrade II
30 mAlbert Terrace and RailingsGrade II
44 mColnbrook Street SchoolsGrade II
73 mFormer Church of St JudeGrade II
73 m2-14, London RoadGrade II
108 m123-131, London RoadGrade II
134 m63-83, St Georges RoadGrade II
134 mCharlotte Sharman School, Block Fronting Geraldine StreetGrade II
139 mThe Duke of Clarence Public HouseGrade II

Historic England ↗

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 ↗

West Square 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.

Council document ↗

2 Article 4 directions

Central Activities Zone · Elephant and Castle Major Town Centre. 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: 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 ↗

Town centre: Elephant and Castle/ Walworth Road

A designated centre in the London Plan.

Shops, services and active frontages are protected in centres, and main town centre uses are steered here first.

Habitat network: Network Enhancement Zone 2

Where habitat is joined up enough to work as a network. Context, not a constraint on its own.

Central activities zone

The core of central London in the London Plan.

Offices, culture and the other strategic functions of the centre take priority over new housing here.

National infrastructure project 730 m away: Thames Tideway Tunnel

The site is 730 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, 106 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 ↗

Opportunity area

Where the London Plan expects significant growth.

Boundaries are indicative and the borough holds the detailed plan.

Also on the record

Inside the Southwark built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square.

Not affected

Not green belt · No scheduled monument at the site

Checked on 6 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 2

Last sold for £1,382,500 in May 2025. Terraced house, freehold.

16 May 2025£1,382,500

30 September 2021£1,320,000

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

Building

Floor area135 m² (1,453 sq ft)

Energy ratingD (58 out of 100), could reach C

PropertyMid-terrace house, 2 habitable rooms

Built1900 to 1929

HeatingBoiler and radiators, mains gas

WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in June 2021, 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: SE1 6EZ
Received: 20 Apr 2026
Validated: 7 May 2026
Ward: St Georges
Parish: Borough, Bankside And Walworth
Case officer: Show
Target decision: 21 Sept 2026
Decision: Householder - GRANTED
Decision date: 21 Sept 2026
Decision level: Delegated Panel - Complex
Applicant: Show
Agent: Urbanist Architecture

How this decision compares

Decided in 137 days from validation, 86 days slower than Southwark's median of 51 for extensions. Approved, as 93% of extensions here are.

This one137d

Council51d

UK55d

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

8comments received

6 objecting1 neutral1 supporting

75% object · above the UK average of 74%

3 neighbours consulted · Last counted 22 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry: 1 Jul 2026
Env. assessment: No

Historical activity at this location

27 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2022 Refused

Construction of extension on rear outrigger, restoration of front facade and removal of c…

22/AP/1032 24 Jun 2022

2022 Refused

Construction of rear extension on outrigger

22/AP/0881 24 Jun 2022

Within ~100m

Nearby activity

2025

Siobhan Davies Studios 85 St Georges Road London Southwark SE1 6ER

Mimosa (T1) - Reduction of crown and lateral spead from 9m to 7m, pruning to previous poi…

25/AP/3218 4 Nov 2025

2024 Approved

17 London Road London Southwark SE1 6JX

Retention of extract system and A/C unit on the rear flat roof.

24/AP/3485 17 Jan 2025

2024 Approved

15 Gladstone Street London Southwark SE1 6EY

Alterations to the mansard roof and 3 no. dormer windows to the front of the property by…

24/AP/3286 2 Jan 2025

2024 Approved

15 Gladstone Street London Southwark SE1 6EY

Listed building consent for the refurbishment of the property, to include internal altera…

24/AP/3287 20 Dec 2024

2024 Approved

5 Colnbrook Street London Southwark SE1 6EZ

False Acacia (15M high, 350mm dia.) - Reduce the crown of the tree by 2 metres and back t…

24/AP/3640 19 Dec 2024

2024 Approved

110 St Georges Road London Southwark SE1 6EU

Construction of a single storey rear extension, refurbishment of all single glazed sash w…

24/AP/2994 28 Nov 2024

2024 Approved

18 Gladstone Street London Southwark SE1 6EY

Tree Maintenance.1 x Silver Birch. Reduce 1m x 1m, cutting to suitable branch junctions t…

24/AP/3090 18 Nov 2024

2024 Approved

2 Garden Row London Southwark SE1 6HB

Elevational alterations to the front elevation to include decorative mouldings to rooflin…

24/AP/2387 1 Oct 2024

2024 Refused

110 St Georges Road London Southwark SE1 6EU

The construction of a single-storey rear extension with access from the lower ground floo…

24/AP/2297 27 Sep 2024

2024 Approved

17 Colnbrook Street London Southwark SE1 6EZ

Listed building consent for: proposed repair and replacement of selected existing windows…

24/AP/1575 29 Aug 2024

2024 Approved

17 Colnbrook Street London Southwark SE1 6EZ

Repair and replacement of selected existing windows and doors with like-for-like timber f…

24/AP/1574 27 Aug 2024

2024 Refused

17 London Road London Southwark SE1 6JX

Retropective application for the installation of extract flue system and a condenser unit…

24/AP/0068 28 Jun 2024

2023 Refused

17 Colnbrook Street London Southwark SE1 6EZ

Proposed replacement of existing windows with like-for-like heritage grade slimline doubl…

23/AP/3182 22 Dec 2023

2023 Refused

17 Colnbrook Street London Southwark SE1 6EZ

Proposed replacement of existing windows with like-for-like heritage grade slimline doubl…

23/AP/3183 19 Dec 2023

2023 Approved

9 Colnbrook Street London Southwark SE1 6EZ

Retrospective Listed Building Consent for the replacement of the existing roof using like…

23/AP/1542 25 Jul 2023

2023 Approved

St Judes Southwark C Of E Primary School Colnbrook Street London Southwark SE1 6HA

Listed Building Consent: Repairs to five roof areas including replacement of felt and asp…

23/AP/1473 14 Jul 2023

2023 Withdrawn

9 Colnbrook Street London Southwark SE1 6EZ

Alterations to the chimney had been rectified to 9 and 8 Colnbrook Street.

23/AP/1400 5 Jun 2023

2022 Approved

Convent 112-116 St Georges Road London Southwark SE1 6EP

London Plane tree located in back garden of missionary on St Georges Road - crown reducti…

22/AP/3971 23 Jan 2023

2022 Approved

104 St Georges Road London Southwark SE1 6EU

Lime Tree Proposed works: general maintenance, crown reduction to previous, most recent r…

22/AP/4096 21 Dec 2022

2022 Approved

St Judes Southwark C Of E Primary School Colnbrook Street London Southwark SE1 6HA

Part retrospective planning application for the installation of 2 no air source heat pump…

22/AP/2810 25 Nov 2022

2016 Approved

St Judes Southwark C Of E Primary School Colnbrook Street London SE1 6HA

Provision of new retractable awning/canopy to the rear (west) elevation

16/AP/0642 27 Apr 2016

2016 Approved

10 Gladstone Street London SE1 6EY

Extension of the existing front roof mansard towards the front parapet; erection of rear…

16/AP/0745 25 Apr 2016

2016 Approved

10 Gladstone Street London SE1 6EY

Extension of the existing front roof mansard towards the front parapet, erection of rear…

16/AP/0746 25 Apr 2016

2016 Approved

Flat 20 St Georges Court Garden Row London SE1 6HD

Replacement of all existing window units and the existing entrance door with new 'like-fo…

16/AP/0291 17 Mar 2016

2016 Approved

18 Colnbrook Street London SE1 6EZ

T1: Large Tree of Heaven - Blocking out light to multiple properties. Lightly crown thin…

16/AP/0074 19 Feb 2016

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

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.

15 Colnbrook Street London Southwark SE1 6EZ Data via plota.co.uk

Proposal

Application progress

Documents 56

Decision & officer reports 3

Statements & assessments 7

Plans & drawings 34

Application forms 2

Consultation & comments 1

Other documents 9

Site constraints 12

Sales history 2

Building

Other new applications on this street

Nearby new applications

Important details

How this decision compares

Public comments

Consultation & key dates

Previous applications at this address

Nearby activity