Sunnymead, Heath Lane, London, SE3 0UT Data via plota.co.uk

DC/26/142623 - Householder Application Approved
Extensions & alterations

Proposal

Construction of single storey side extension, part one/part two-storey rear extension, dormer extension to front roof slope, widening of rear dormer, installation of additional front door and all associated works at Sunnymead, Heath Lane SE3. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
9 Jan 2026
✓
Validated
19 Jan 2026
✓
Consultation
10 Feb 2026
✓
Approved
20 Jul 2026

Approved on 20 Jul 2026 · Delegated · Last checked 25 Jul 2026

Documents 39

Decision & officer reports 2

PDF Delegated report Officer Report · 20 Jul 2026 View ↗ PDF Decision notice Decision · 20 Jul 2026 View ↗

Statements & assessments 5

PDF Arboricultural impact assessment Revised Document · 6 May 2026 View ↗ PDF Arboricultural method statement Revised Document · 6 May 2026 View ↗ PDF Design access & heritage statement Case Copy Documents · 19 Jan 2026 View ↗ PDF Arboricultural survey Case Copy Documents · 12 Jan 2026 View ↗ PDF Arboricultural impact assessment Superseded Document · 12 Jan 2026 View ↗

Plans & drawings 26

PDF Ck20_02 101_front elevation_p4 Existing and proposed front elevation Revised Document · 6 May 2026 View ↗ PDF Ck20_02 103_rear elevation_p4 Existing and proposed rear elevation Revised Document · 6 May 2026 View ↗ PDF Ck20_01 102_first floor plans_p4 Existing and proposed first floor plan Revised Document · 6 May 2026 View ↗ PDF Ck20_01 103_attic floor plans_p4 Existing and proposed attic floor plan Revised Document · 6 May 2026 View ↗ PDF Ck20_01 104_roof plans_p4 Existing and proposed roof plan Revised Document · 6 May 2026 View ↗ PDF Ck20_03 003_section cc_p4 Existing and proposed section cc Revised Document · 6 May 2026 View ↗ PDF Ck20_03 007_section gg_p4 Existing and proposed section gg Revised Document · 6 May 2026 View ↗ PDF Ck20_00 001 rev p5 Site plans Revised Document · 6 May 2026 View ↗ PDF Ck20 03106 rev p3 Existing & proposed section ff Case Copy Drawings · 12 Jan 2026 View ↗ PDF Ck20 03107 rev p3 Existing & proposed section gg Superseded Document · 12 Jan 2026 View ↗ PDF Ck20 03104 rev p3 Existing & proposed section dd Case Copy Drawings · 12 Jan 2026 View ↗ PDF Ck20 03105 rev p3 Existing & proposed section ee Case Copy Drawings · 12 Jan 2026 View ↗ PDF Ck20 03102 rev p3 Existing & proposed section bb Case Copy Drawings · 12 Jan 2026 View ↗ PDF Ck20 03103 rev p3 Existing & proposed section cc Superseded Document · 12 Jan 2026 View ↗ PDF Ck20 02 104 rev p3 Existing & proposed north elevation 01 Case Copy Drawings · 12 Jan 2026 View ↗ PDF Ck20 02 105 rev p3 Existing & proposed north elevation 02 Case Copy Drawings · 12 Jan 2026 View ↗ PDF Ck20 03101 rev p3 Existing & proposed section aa Case Copy Drawings · 12 Jan 2026 View ↗ PDF Ck20 02 102 rev p3 Existing & proposed south elevation Case Copy Drawings · 12 Jan 2026 View ↗ PDF Ck20 02 103 rev p3 Existing & proposed rear elevation Superseded Document · 12 Jan 2026 View ↗ PDF Ck20 01 102 rev p3 Existing & proposed first floor plans Superseded Document · 12 Jan 2026 View ↗ PDF Ck20 01 103 rev p3 Existing & proposed attic floor plans Superseded Document · 12 Jan 2026 View ↗ PDF Ck20 01 104 rev p3 Existing & proposed roof plans Superseded Document · 12 Jan 2026 View ↗ PDF Ck20 02 101 rev p3 Existing & proposed front elevation Superseded Document · 12 Jan 2026 View ↗ PDF Location plan Case Copy Drawings · 12 Jan 2026 View ↗ PDF Ck20 00 001 rev p3 Existing & proposed site plans Superseded Document · 12 Jan 2026 View ↗ PDF Ck20 01 101 rev p3 Existing & proposed ground floor plans Case Copy Drawings · 12 Jan 2026 View ↗

Application forms 1

PDF Redacted Application form Case Copy Documents · 12 Jan 2026 View ↗

Consultation & comments 3

PDF Revised Tree comments Case Copy Documents · 3 Jul 2026 View ↗ PDF Conservation comments Case Copy Documents · 4 Mar 2026 View ↗ PDF Tree comments Case Copy Documents · 25 Feb 2026 View ↗

Other documents 2

PDF Additional info Appendix a Revised Document · 19 Jun 2026 View ↗ IMG Site photo Photographs · 12 Jan 2026 View ↗

All documents on the council site ↗

Site constraints 9

Blackheath 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 ↗
Article 4 direction
Small HMO Northern Extension. 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: Lewisham 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 ↗
4 listed buildings within 150 m of the postcode pin
Nearest: 3-5, the Meadway Se3, Grade II, about 40 m from the postcode pin · 4 Grade II
The site itself is not listed. 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 all 4 with distances
Historic England ↗
Also on the record
National infrastructure project about 1243 m away: Thames Tideway Tunnel; Radon affected area, class 2; Inside the Lewisham built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square; Priority habitat about 11 m away: No main habitat but additional habitats present.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI), 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 £1,900,000 in February 2025. Detached house, freehold.

7 February 2025£1,900,000

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

Building

Floor area166 m² (1,787 sq ft)
Energy ratingE (41 out of 100), could reach C
PropertyDetached house, 8 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in November 2023, 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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Important details

Council
Lewisham
Application type
Householder Application
Postcode
SE3 0UT
Received
9 Jan 2026
Validated
19 Jan 2026
Ward
Blackheath
Case officer
Show
Target decision
19 Jun 2026
Decision
Granted
Decision date
20 Jul 2026
Decision level
Delegated
Applicant
Show
Agent
Conrad Koslowsky Architects

How this decision compares

Decided in 182 days from validation, 126 days slower than Lewisham's median of 56 for extensions. Approved, as 86% of extensions here are.

76%decided within 8 weeks
86%approved
781decided in the last year

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

Consultation & key dates

Alt. reference
PP-14475500
Planning Portal ref
PP-14475500
Neighbours
10 Feb 2026
Consultation
10 Feb 2026
Comments by
19 Feb 2026
Site or press notice
8 Feb 2026
Statutory expiry
16 Mar 2026
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2017 Approved
FRONT: ONE Eucalptus, previous pollard (T1) FELL and replace with native speciesFRONT: ON…
DC/17/103593
Within ~100m

Nearby activity

2025 Refused
14 BAIZDON ROAD, LONDON, SE3 0UJ
Increasing the height of the existing rear garden brick side boundary wall using timber c…
DC/25/140183
2023 Approved
44 BAIZDON ROAD, LONDON, SE3 0UJ
REAR ONE Sycamore tree(T1)(ht:7m, rs:6m)CROWN REDUCE HEIGHT by 2.5m from 7m to 4.5m, REDU…
DC/23/133320
2022 Approved
24 BAIZDON ROAD, LONDON, SE3 0UJ
Construction of a front porch and removal of an existing window to the front elevation at…
DC/22/129020
2022 Approved
8 HEATH LANE, LONDON, SE3 0UT
REAR: ONE Silver Birch (T1)(ht.12-15m) FELL and replace. Reason: extensive root and low s…
DC/22/129576
2022 Approved
44 BAIZDON ROAD, LONDON, SE3 0UJ
Paving of the front garden in brick pavers to create driveway at 44 Baizdon Road, SE3 tog…
DC/22/124965
2021 Approved
THE DEN, HEATH LANE, LONDON, SE3 0UT
SIDE: ONE Pear (T1)(ht.12m,r.3m) CROWN REDUCE HEIGHT by 1.5m to ht.10.5m, RADIUS REDUCE b…
DC/21/124243
2021 Approved
7 HEATH LANE, LONDON, SE3 0UT
FRONT: ONE Willow (T1)(ht.8m,r.5m) HEIGHT REDUCE by 1m to 7m, RADIUS REDUCE by 1.5m to r…
DC/21/123847
2021 Approved
10 HEATH LANE, LONDON, SE3 0UT
The construction of roof extensions to the rear and side roof slopes of 10 Heath Lane SE3…
DC/21/120363
2021 Approved
5 THE MEADWAY, HEATH LANE, LONDON, SE3 0UP
Rear garden: Sycamore (A on plan) CROWN REDUCE height by 5m from 20m to 15m, REDUCE radiu…
DC/21/120603
2020 Approved
THE DEN, HEATH LANE, LONDON, SE3 0UT
REAR: ONE Hawthorn (T1)(approx.ht.8m) FELL. Reason: dying/partly dead, on north boundary…
DC/20/118684
2020 Approved
40 HEATH LANE, LONDON, SE3 0UT
REAR: ONE Magnolia (T1)(ht.6m) CROWN REDUCE HEIGHT to 3m, REDUCE RADIUS from 3m to 2m. Re…
DC/20/117214
2020 Approved
50 HEATH LANE, LONDON, SE3 0UT
The installation of replacement timber casement windows in the north and south elevations…
DC/20/116017
2020 Approved
50 HEATH LANE, LONDON, SE3 0UT
Listed Building Consent for the installation of replacement timber casement windows in th…
DC/20/116018
2020 Approved
THE CHESTNUTS, HEATH LANE, LONDON, SE3 0UT
REAR: ONE Mature Oak (T1)(ht.18m) CROWN REDUCE HEIGHT by 8m from 18m to 10m, REDUCE WIDTH…
DC/20/115951
2019 Refused
34 BAIZDON ROAD, LONDON, SE3 0UJ
Application for the construction of a front extension at 34 Baizdon Road, SE3 together wi…
DC/19/115124
2019 Approved
34 BAIZDON ROAD, LONDON, SE3 0UJ
Lawful Development Certificate (proposed) in respect to a porch at 34 Baizdon Road SE3 to…
DC/19/115123
2018 Refused
10 HEATH LANE, LONDON, SE3 0UT
The construction of roof extensions to the rear and side roof slopes of 10 Heath Lane SE3…
DC/18/107722
2018 Approved
THE DEN, HEATH LANE, LONDON, SE3 0UT
REAR: ONE Lime (T1) FELL (previous notice DC/17/103440 was to crown reduce further, follo…
DC/18/107629
2018 Approved
9 HEATH LANE, LONDON, SE3 0UT
Construction of a single storey rear extension at 9 Heath Lane, SE3.
DC/18/106989
2017 Approved
9 HEATH LANE, LONDON, SE3 0UT
REAR: ONE Oak Tree (T1) FELL very close to houseREAR: ONE Ash Tree (T2) FELL decayed and…
DC/17/103855
2016 Approved
22 BAIZDON ROAD, LONDON, SE3 0UJ
Lime Tree, rear of property. Removal of tree as tree is too big for the garden, creates e…
DC/16/097046
2016 Approved
38 BAIZDON ROAD, LONDON, SE3 0UJ
Cypress (T1) - fell because of excessive shading and close proximity to houses. Tree will…
DC/16/097985
2016 Withdrawn
22 BAIZDON ROAD, LONDON, SE3 0UJ
Lime Tree, rear of property. Re-pollarding to existing pollarding point to remove new gro…
DC/16/095884
2016 Approved
7 HEATH LANE, LONDON, SE3 0UT
Lawful Development Certificate (Proposed) in respect of the construction of a pool house…
DC/16/096289
2016 Approved
7 HEATH LANE, LONDON, SE3 0UT
Lawful Development Certificate (Proposed) in respect of the construction of a swimming po…
DC/16/096290
Lewisham
Planning Authority Score
5.8/10
Average
#111 of 296 councils
Relevant to this application:
Householder decisions

Lewisham ranks #127 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (90%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Lewisham decision statistics
Based on MHCLG data, the year to March 2026
84%
Overall approval rate
Below avg (87%) #224 of 296
90%
Householder approved
Above avg (90%) #192 of 296
69%
Decided in 8 weeks
Above avg (63%) #127 of 296
31%
Extended time limit
Below avg (41%) #58 of 296
65%
Minor dwellings approved
117 decided (1-9 homes)
92%
Major dwellings approved
12 decided (10+ homes)
57%
Change of use approved
67 decided
1,303
Total decisions
207 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.

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.