61 Alleyn Park London Southwark SE21 8AT Data via plota.co.uk

26/AP/2469 - Householder Application Under consideration/assessment
Extensions & alterations

Proposal

Construction of a single storey ground floor rear extension. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
18 Aug 2026
Decision
Expected by 12 Oct 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 9 Oct 2026, from Southwark's recent extensions.

Documents 11

Statements & assessments 2

PDF DESIGN & ACCESS STATEMENT Design and Access statement · 18 Aug 2026 View ↗ PDF REASONABLE EXEMPTION STATEMENT Fire Statement · 18 Aug 2026 View ↗

Plans & drawings 5

PDF PL-08 REV - PROPOSED SECTIONS Plan - Proposed · 18 Aug 2026 View ↗ PDF PL-07 REV - PROPOSED ELEVATIONS Plan - Proposed · 18 Aug 2026 View ↗ PDF PL-06 REV - PROPOSED ROOF PLAN Plan - Proposed · 18 Aug 2026 View ↗ PDF PL-05 REV - PROPOSED GROUND FLOOR PLAN Plan - Proposed · 18 Aug 2026 View ↗ PDF PL-01 REV - SITE PLAN Site - Block plan · 18 Aug 2026 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application - Form (Without Personal data) · 18 Aug 2026 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM CIL - GIA Form · 18 Aug 2026 View ↗

Consultation & comments 1

PDF FILE COPY - NEIGHBOUR NOTIFICATION+LIST Neighbour Notification List · 18 Aug 2026 View ↗

Other documents 1

PDF VALID APPLICATION LETTER WITH INVOICE Valid Application Letter · 18 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 5

Tree preservation order: Land Bounded by 1-15 Alleyn Road, SE21, Loggetts, Morkyns Walk and 43-49, 61,63 & 69 Alleyn Park, London, SE21
Consent is needed before work on protected trees.
Not every council has published its orders as open data, so no order shown is not proof there is none.
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 ↗
Also on the record
Inside the Southwark built-up area; Public transport access: PTAL 1b (very poor), TfL 2023, for the 100 m square; Metropolitan Open Land 100 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 2

Last sold for £3,950,000 in August 2019. Semi-detached house, freehold.

1 August 2019£3,950,000Recorded as a transfer outside a standard sale
2 June 2006£1,675,000

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

Building

Floor area465 m² (5,005 sq ft)
Energy ratingE (42 out of 100), could reach D
PropertySemi-detached house, 14 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in March 2019, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

19 Aug 2026Approved

123 Alleyn Park London Southwark SE21 8AA

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5 Aug 2026Approved

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26/AP/2338
22 Jul 2026Approved

11 Alleyn Park London Southwark SE21 8AU

Five day notification for tree works: Removal of dead conifer.

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Nearby new applications

29 Sept 2026Pending

108 Rosendale Road London SE21 8LF

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16 Sept 2026Pending

Ferrings London Southwark SE21 7LU

Tree removal following advance decay detection results- Tree ID- Common Name Wor...

26/AP/2749
16 Sept 2026Pending

Tollgate Drive London Southwark

4307 - Pedunculate oak. Deadwood > 5cm . Remove deadwood. 4272 - Pedunculate oak...

26/AP/2750
28 Aug 2026Approved

51 College Road London Southwark SE21 7LF

Five day notification for tree works: Fell to ground level one unidentified dead...

26/AP/2577
19 Aug 2026Approved

123 Alleyn Park London Southwark SE21 8AA

Five day notification for tree works: Fell to ground level one dead Prunus tree ...

26/AP/2492
14 Jul 2026Pending

170 Rosendale Road London SE21 8LG

Erection of a single storey side and rear extension at lower ground floor with a...

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Important details

Council
Southwark
Application type
Householder Application
Postcode
SE21 8AT
Received
18 Aug 2026
Validated
18 Aug 2026
Ward
Dulwich Wood
Parish
Dulwich
Case officer
Show
Target decision
12 Oct 2026
Applicant
Show
Agent
Mittelman Associates LLP

Decision outlook

Day 52, past Southwark's usual 51 days for extensions. 92% are decided within thirteen weeks, so most likely by 17 Nov 2026.

Day 524 days to the 56-day target
75%decided within 8 weeks
93%approved
647decided 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.

6 neighbours consulted · Last counted 7 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
12 Oct 2026
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2023 Approved
Works to TPO trees:T1 - Japanese Acer located in the front garden of 61 Alleyn Park. Tree…
23/AP/2539
2020 Approved
T1 - Medium size Ash tree on boundary with neighbours garden. Routine management. Crown t…
20/AP/2666
Within ~100m

Nearby activity

2025
45 Alleyn Park London Southwark SE21 8AT
Tree works : Silver Birch. Tree ID 4046. Overall reduction of 1.5m back to closest growth…
25/AP/2073
2023 Approved
Dulwich College Preparatory School 42 Alleyn Park London Southwark SE21 7AA
Details of Condition 2 -Construction Environmental Management Plan as required by plannin…
23/AP/3211
2023 Approved
Dulwich College Preparatory School 42 Alleyn Park London Southwark SE21 7AA
Brick infill extension to create 5m2 additional education floorspace and the removal and…
23/AP/1149
2023 Approved
33A Alleyn Park London Southwark SE21 8AT
Works to a TPO tree: REVISED SPECIFICATION to match DE Licence T1 Oak: Crown thin by up 2…
23/AP/1033
2022 Approved
23 Alleyn Road London Southwark SE21 8AB
T1. Mature veteran Oak tree - some removal of dead wood plus a small amount of crown lift…
22/AP/4042
2022 Approved
33A Alleyn Park London Southwark SE21 8AT
REVISED SPECIFICATIONT2. Crown thin by 25% a multi stemmed contorted Willow tree approxim…
22/AP/3057
2022 Refused
33A Alleyn Park London Southwark SE21 8AT
T1. Fell an Oak tree approximately 12 metres in height. Situated close to the front left…
22/AP/1445
2021 Approved
39 Alleyn Park London Southwark SE21 8AT
Construction of a single storey ground floor rear extension and and replacement pool room…
21/AP/4311
2021 Approved
41 Alleyn Park London Southwark SE21 8AT
T1: 1x Horse Chestnut tree approximately 18m in height, situated on the fron left-hand co…
21/AP/3170
2021 Approved
37A Alleyn Park London Southwark SE21 8AT
T1 Poplars (x7) - Reduce crowns back to previous points of reduction (approximately 1.5m…
21/AP/3332
2021 Approved
19 Alleyn Road London Southwark SE21 8AB
Purple Maple (T1) - Crown to be lightly thinned by up to 15% and one lowest branch to be…
21/AP/1855
2020 Approved
45 Alleyn Park London Southwark SE21 8AT
T1 - 2x mature Horse Chestnut trees - crown thin by 25% including the removal of dead woo…
20/AP/3010
2020 Approved
37A Alleyn Park London Southwark SE21 8AT
Variation of Condition 1 'Approved Plans' of planning permission LBS reg no 19/AP/5945 fo…
20/AP/0450
2019 Approved
37A Alleyn Park London Southwark SE21 8AT
Demolition of existing single storey rear extension and construction of a single storey r…
19/AP/5945
2017 Withdrawn
Dulwich College Preparatory School 42 Alleyn Park London SE21 7AA
Details of Condition 4, BREEAM rating, pursuant to planning permission 16-AP-5016 for: Pa…
17/AP/1674
2018 Approved
Dulwich College Preparatory School 42 Alleyn Park London SE21 7AA
Construction of an sub-station enclosure and a lean to plant enclosure and relocation of…
18/AP/1232
2017 Approved
Dulwich College Preparatory School 42 Alleyn Park London SE21 7AA
Variation of Condition 1 ("Approved Plans") of planning permission 16/AP/5016 (for: Parti…
17/AP/4268
2017 Approved
Dulwich College Preparatory School 42 Alleyn Park London SE21 7AA
The construction of a temporary two storey modular classroom block and a temporary single…
17/AP/2450
2017 Approved
Dulwich College Preparatory School 42 Alleyn Park London SE21 7AA
Details of Condition 5, green roofs, pursuant to planning permission 16-AP-5016 for: Part…
17/AP/1675
2017 Approved
Dulwich College Preparatory School 42 Alleyn Park London SE21 7AA
Details of Condition 3, Arboricultural Survey, pursuant to planning permission 16-AP-5016…
17/AP/1588
2016 Approved
Dulwich College Preparatory School 42 Alleyn Park London SE21 7AA
Partial demolition and three storey infill development at the front of the existing schoo…
16/AP/5016
2016 Approved
37A Alleyn Park London SE21 8AT
Erection of rear dormer roof extension; installation of x1 rooflight to north roof slope…
16/AP/1433
2016 Approved
Dulwich College Preparatory School 42 Alleyn Park London SE21 7AA
Erection of ground floor extension to provide additional stores and locker spaces for boy…
16/AP/1031
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.