15 Ambergate Street London Southwark SE17 3RY Data via plota.co.uk

26/AP/2831 - Minor application Under consideration/assessment
Extensions & alterations

Proposal

L-shaped dormer loft extension with a roof terrace to the rear and the installation of 3no rooflights in front roof slope to provide additional living accommodation. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
24 Sept 2026
✓
Validated
29 Sept 2026
Decision
Expected by 23 Nov 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 19 Nov 2026, from Southwark's recent extensions.

Documents 9

Statements & assessments 1

PDF FIRE STATEMENT Fire Statement · 29 Sept 2026 View ↗

Plans & drawings 4

PDF 02 SITE PLAN Site - Block plan · 25 Sept 2026 View ↗ PDF 08 PROPOSED 2ND (LOFT) FLOOR PLAN Plan - Proposed · 25 Sept 2026 View ↗ PDF 05 PROPOSED FRONT & REAR ELEVATIONS Plan - Proposed · 25 Sept 2026 View ↗ PDF 06 PROPOSED SIDE ELEVATIONS Plan - Proposed · 25 Sept 2026 View ↗

Application forms 2

PDF COMMUNITY INFRASTRUCTURE LEVY (CIL) CIL - GIA Form · 29 Sept 2026 View ↗ PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application - Form (Without Personal data) · 24 Sept 2026 View ↗

Consultation & comments 1

PDF FILE COPY - NEIGHBOUR NOTIFICATION+LIST Neighbour Notification List · 29 Sept 2026 View ↗

Other documents 1

PDF VALID APPLICATION LETTER WITH INVOICE Valid Application Letter · 29 Sept 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 ↗
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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Conservation area 59 m away: Kennington Park Road; 4 listed buildings within 150 m; Inside the Southwark built-up area.
Not affected
Not green belt · No scheduled monument at the site

Checked on 29 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.

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Important details

Council
Southwark
Application type
Minor application
Postcode
SE17 3RY
Received
24 Sept 2026
Validated
29 Sept 2026
Ward
Newington
Parish
Borough, Bankside And Walworth
Case officer
Show
Target decision
23 Nov 2026
Applicant
Show
Agent
Classic Lofts London

Decision outlook

Day 6 of the 56-day target. Southwark usually decides extensions by day 51.

Day 650 days to the 56-day target
75%decided within 8 weeks
93%approved
642decided 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.

5 neighbours consulted · Last counted 29 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
23 Nov 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
110 Ambergate Street London Southwark SE17 3SA
Construction of a timber single-storey rear ground-floor extension with a sedum green roo…
25/AP/3421
2025 Approved
79 Ambergate Street London Southwark SE17 3RZ
Retrospective application for a single-storey rear extension.
25/AP/0347
2025
88 Alberta Street London Southwark SE17 3RT
Erection of L-Shaped rear roof dormer extension with the addition of two rooflights to th…
25/AP/1256
2025 Approved
57 Kennington Park Road London Southwark SE11 4JQ
T1 Eucalyptus: Fell to ground level. Reasons: Poor form, bias lean, unsuitable in its loc…
25/AP/0385
2024 Approved
14-16 Ambergate Street London Southwark SE17 3RX
Construction of single storey ground floor side and rear extension.
24/AP/3289
2024 Withdrawn
67 Ambergate Street London Southwark SE17 3RZ
Installation of 1x air source heat pump under 0.6 cubic metres to rear garden within 1m o…
24/AP/3019
2024 Approved
14 Ambergate Street London Southwark SE17 3RX
Lawful Development Certificate (Proposed) for alterations to the roofline incorporating a…
24/AP/1480
2023 Approved
96 Alberta Street London Southwark SE17 3RT
Construction of an L shaped dormer (over the main roof and outrigger) with juliette balco…
23/AP/0119
2022 Approved
96 Alberta Street London Southwark SE17 3RT
Construction of rear dormer extension with juliette balcony and three front elevation roo…
22/AP/0140
2022 Approved
57 Kennington Park Road London Southwark SE11 4JQ
1 x Lime - Reduce Overall Size Of Crown By 3m to previous points, retaining knuckles.
22/AP/0262
2021 Approved
21 Ambergate Street London Southwark SE17 3RY
Construction of single storey rear wrap around extension with a maximum height of 3m to w…
21/AP/3555
2021 Approved
88 Alberta Street London Southwark SE17 3RT
Construction of a rear 'L' shaped dormer extension. extending less than 50% of the outrig…
21/AP/0449
2021 Approved
47 Ambergate Street London Southwark SE17 3RY
Construction of a rear L-shaped loft mansard with 2 roof lights to the front roof slope…
21/AP/0510
2019 Approved
3 Braganza Street London Southwark SE17 3RD
Conversion of existing dwelling into 3 x dwelling units: 1 x ground floor studio flat, in…
19/AP/2797
2019 Approved
62 Ambergate Street London Southwark SE17 3RX
Construction of an L-shaped rear dormer roof extension including installation of 2 roof w…
19/AP/3286
2019 Approved
57 Ambergate Street London SE17 3RZ
Construction of ground floor rear extension
19/AP/0094
2017 Approved
9 Braganza Street London SE17 3RD
Construction of a front porch enclosure
17/AP/3889
2018 Approved
54 Ambergate Street London SE17 3RX
Construction of an L-shaped rear dormer extension over the main rear roofslope and outrig…
18/AP/0768
2017 Approved
First Floor Flat 112 Alberta Street London SE17 3RT
Erection of rear roof dormer extension with Juliette balcony and the addition of three ve…
17/AP/4688
2017 Approved
First Floor Flat 112 Alberta Street London SE17 3RT
Erection of rear L-shaped dormer roof extension with the addition of two velux rooflights…
17/AP/4687
2016 Approved
57 Kennington Park Road London SE11 4JQ
Reduce the height of a mature lime tree to a previous second level pollard and thin the w…
16/AP/4358
2016 Approved
30-32 Ambergate Street London SE17 3RX
Conversion of dwelling house to x2 self contained flats with associated extensions at fir…
16/AP/3581
2016 Approved
75 Alberta Street London SE17 3RU
Construction rear dormer extension
16/AP/2714
2016 Approved
57 Kennington Park Road London SE11 4JQ
Cherry tree - 30% reduction in order to promote edible fruit in the future.
16/AP/2906
2016 Approved
52 Braganza Street London SE17 3RJ
Alterations to ground floor and rear elevation - to replace window with new glazed double…
16/AP/2008
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

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use