20 Copse Hill, Wimbledon, Merton, SW20 0HG Data via plota.co.uk

26/HOUSE/1326 - Householder Approved
Extensions & alterations

Proposal

Erection of roof extension involving increasing the ridge height, remodelling front and rear dormer windows and fenestration and erection of a single storey rear extension Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
29 Jun 2026
✓
Approved
15 Sept 2026

Approved on 15 Sept 2026 · Delegated · Last checked 30 Sept 2026

Documents 31

Decision & officer reports 2

PDF Decision Notice Decision Notice · 15 Sept 2026 View ↗ PDF Delegated Report General Correspondence · 15 Sept 2026 View ↗

Statements & assessments 2

PDF 17P1467_Arboricultural Report.pdf Supporting/Supplementary Info · 7 Jul 2026 View ↗ PDF 17P1467_Design and Access Statement.pdf Supporting/Supplementary Info · 7 Jul 2026 View ↗

Plans & drawings 23

PDF 17P1467_Proposed Side Elevations.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed Front and Rear Elevations.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing Roof.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing 2nd Floor.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed Street Scene.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed Roof.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing Side Elevations.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing Front and Rear Elevations.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed 2nd Floor.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing Sections AA BB.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing Ground Floor.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing 1st Floor.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed Section AA BB.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed Ground Floor.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed Site Plan.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing Site Plan.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing Street Scene.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed 1st Floor.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Existing Sections EE.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Site Location Plan.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed Section EE.pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed Block Plan(1).pdf Plans · 7 Jul 2026 View ↗ PDF 17P1467_Proposed Block Plan.pdf Plans · 7 Jul 2026 View ↗

Application forms 2

PDF 17P1467_Application Form NoPersonalData.pdf Application Forms/Certificates · 7 Jul 2026 View ↗ PDF ApplicationFormRedacted.pdf Application Forms/Certificates · 7 Jul 2026 View ↗

Other documents 2

PDF 17P1467_Press List.pdf Supporting/Supplementary Info · 7 Jul 2026 View ↗ PDF 17P1467_Letters.pdf General Correspondence · 7 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 7

Wool Road 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 ↗
Air quality management area: Merton 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
3 listed buildings within 150 m; Inside the Merton built-up area; Public transport access: PTAL 1a (very poor), TfL 2023, for the 100 m square; Designated open space 23 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 2 November 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 1

Last sold for £1,500,000 in July 2010. Detached house, freehold.

12 July 2010£1,500,000

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

Building

Floor area155 m² (1,668 sq ft)
Energy ratingE (46 out of 100)
PropertyDetached house, 7 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in May 2010, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

20 Oct 2026Pending

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28 Aug 2026Pending

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T1 - CUT DOWN DEAD SILVER BIRCH T2 - CUT DOWN DEAD APPLE TREE T3 - REDUCE HOLLY ...

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23 Oct 2026Approved

39 Wool Road, Wimbledon, Merton, SW20 0HN

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23 Oct 2026Approved

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Important details

Council
Merton
Application type
Householder
Postcode
SW20 0HG
Received
29 Jun 2026
Validated
29 Jun 2026
Ward
Village
Case officer
Show
Target decision
18 Sept 2026
Decision
Grant Permission Subject To Conditions
Decision date
15 Sept 2026
Decision level
Delegated
Applicant
Show

How this decision compares

Decided in 78 days from validation, 22 days slower than Merton's median of 56 for extensions. Approved, as 91% of extensions here are.

50%decided within 8 weeks
91%approved
1,375decided in the last year

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

Consultation & key dates

Comments by
11 Aug 2026
Statutory expiry
18 Sept 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
32 Copse Hill Wimbledon SW20 0HG
T1 - Sycamore - Reduce the crown to the previous pruning points by 1.5 metres. Tree heigh…
25/T3676
2025 Approved
20 Copse Hill Wimbledon SW20 0HG
REAR GARDEN: OAK TO BE CROWN REDUCED BY APPROX 30% WHICH EQUATES TO 2 TO 2.5 METRES MAXIM…
25/T3517
2025 Approved
17 Copse Hill Wimbledon SW20 0NB
REAR GARDEN: MALUS - REMOVAL OF DEAD, HAZARDOUS TREE. ROBINA - REMOVAL OF DEAD, HAZARDOUS…
25/T2461
2025 Approved
25 Ernle Road Wimbledon SW20 0HH
T1 - NORWAY MAPLE: REMOVE DEAD WOOD AND REDUCE REMAINDER BY 2-3 METRES FROM BRANCH TIPS T…
25/T2286
2025 Approved
19 Ernle Road Wimbledon SW20 0HH
5 DAY NOTICE FOR REMOVAL FOR DEAD SWEET CHESTNUT TREE IN REAR GARDEN.
25/T2301
2025 Approved
11 Ernle Road Wimbledon London SW20 0HH
5 DAY NOTICE DEAD SILVER BIRCH - REMOVE TREE TO GROUND LEVEL.
25/T2051
2025 Approved
19 Ernle Road Wimbledon SW20 OHH
FRONT: DYING LABURNUM - REMOVE. REAR : CONIFERS x 4 - ADJACENT TO PATIO - REMOVE. LIMES x…
25/T1313
2025 Approved
19 Ernle Road Wimbledon SW20 0HH
ERECTION OF SINGLE STOREY REAR EXTENSION; ROOF EXTENSION INCLUDING CHANGES TO ROOF FORM A…
25/P0551
2024 Approved
15 Copse Hill Wimbledon SW20 0NB
LIME TREE - FELL
24/T3077
2024 Approved
Flat 1 19 Copse Hill West Wimbledon SW20 0NB
APPLICATION FOR THE ERECTION OF A BASEMENT EXTENSION.
24/P0892
2024 Approved
Flat 1 19 Copse Hill West Wimbledon SW20 0NB
LISTED BUILDING APPLICATION FOR THE ERECTION OF A BASEMENT EXTENSION.
24/P0891
2024 Approved
19 ERNLE ROAD WIMBLEDON LONDON SW20 OHH
5 DAY NOTICE - LARGE DEAD TREE TO BE REMOVED.
24/T2003
2024 Approved
Christ Church Vicarage 16 Copse Hill West Wimbledon SW20 0HG
PLANNING APPLICATION FOR PROPOSED RELOCATION OF EXISTING DROPPED KERB. TO ALLOW FOR DRIVE…
24/P1054
2024 Approved
15E Copse Hill Wimbledon SW20 ONB
5 DAY NOTICE - ASH - FELL DISEASED TREE.
24/T1244
2024 Approved
7 Copse Hill Wimbledon SW20 0NB
G4 HOLLY GROUP (X1): REDUCE HEIGHT BY 1.5M T5 LEYLAND CYPRESS )X1): FELL TO GORUND LEVEL…
24/T0644
2024
15E Copse Hill Wimbledon SW20 ONB
REAR GARDEN: BEECH TREE - FELL AND REPLACEMENT WITH ALTERNATIVE SPECIES.
24/T0612
2023 Approved
36 Copse Hill West Wimbledon SW20 0HG
Purple Leaf Plum - reduce height by 2m and width by 1-1.5m. Purple Leaf Plum - reduce hei…
23/T3080
2023 Approved
15D Copse Hill West Wimbledon SW20 0NB
Ash - Fell Sweet Chestnue: Reduce by approx 2.5/3m from all aspects
23/T2934
2023 Approved
32 Copse Hill West Wimbledon London SW20 0HG
Portuguese Laurel - Reduce the height to 4 metres
23/T2941
2023 Approved
17 Copse Hill West Wimbledon London SW20 0NB
T1-Leyland Cypress Reduce back to previous points all round, 1-2m from branch tips T2-Lim…
23/T2546
2016 Refused
20 Copse Hill West Wimbledon London SW20 0HG
REAR GARDEN: 1 X OAK (M176T1) TO BE REMOVED AND REPLANTED WITH A SUITABLE SPECIES
16/T4557
2016 Approved
17 Ernle Road West Wimbledon London SW20 0HH
APPLICATION FOR VARIATION OF CONDITION 2 (APPROVED PLANS) ATTACHED TO LBM PLANNING PERMIS…
16/P4451
2016 Approved
40 Copse Hill West Wimbledon SW20 0HG
REAR GARDEN: 3NO.SYCAMORE TO BE CROWN REDUCED BY APPROX 2 METRES BACK TO PREVIOUS POINTS…
16/T3725
2016 Approved
15 Ernle Road West Wimbledon London SW20 0HH
REAR GARDEN: 2 X ADJOINING CHERRY TREES TO BE REDUCED IN HEIGHT DUE TO BEING DISEASED AND…
16/T3470
2016 Approved
17 Ernle Road West Wimbledon London SW20 0HH
PARTIAL DEMOLITION AND ALTERATION TO EXISTING REAR EXTENSION
16/P3241
Merton
Planning Authority Score
4.5/10
Below average
#173 of 296 councils
Relevant to this application:
Householder decisions

Merton ranks #196 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (92%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Merton decision statistics
Based on MHCLG data, the year to March 2026
89%
Overall approval rate
Above avg (87%) #135 of 296
92%
Householder approved
Above avg (90%) #158 of 296
57%
Decided in 8 weeks
Below avg (63%) #196 of 296
39%
Extended time limit
Below avg (41%) #139 of 296
54%
Minor dwellings approved
82 decided (1-9 homes)
100%
Major dwellings approved
11 decided (10+ homes)
83%
Change of use approved
24 decided
1,079
Total decisions
115 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.