80 Lock Chase, London, SE3 9HA Data via plota.co.uk

DC/25/142398 - Householder Application Approved
DemolitionExtensions & alterations

Proposal

The demolition and construction of a single-storey side extension at 80 Lock Chase,SE3. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
10 Dec 2025
✓
Validated
16 Jan 2026
✓
Consultation
27 Jan 2026
✓
Approved
19 Mar 2026

Approved on 19 Mar 2026 · Delegated · Last checked 25 Sept 2026

Documents 8

Decision & officer reports 2

PDF Delegated report Officer Report · 19 Mar 2026 View ↗ PDF Decision notice Decision · 19 Mar 2026 View ↗

Plans & drawings 3

PDF Typical window details Case Copy Drawings · 19 Mar 2026 View ↗ PDF Existing & proposed plans &elevations Case Copy Drawings · 13 Jan 2026 View ↗ PDF 01 Location plan Case Copy Drawings · 13 Jan 2026 View ↗

Application forms 1

PDF Redacted Application form Application Form · 11 Dec 2025 View ↗

Consultation & comments 2

PDF Conservation officer Updated comments Case Copy Documents · 11 Mar 2026 View ↗ PDF Conservation officer Comments Case Copy Documents · 19 Feb 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 Named permitted development rights are withdrawn here.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 ↗
6 listed buildings within 150 m
Nearest: 123-133, Lee Park Se3, Grade II, 45 m away · 6 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 6 with distances
Historic England ↗
Also on the record
Radon affected area, class 2; National infrastructure project 1985 m away: Thames Tideway Tunnel; Inside the Lewisham built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square; Designated open space 50 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, 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 2

Last sold for £1,511,000 in October 2015. Semi-detached house, freehold.

20 October 2015£1,511,000
26 January 2001£550,000

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

Building

Floor area175 m² (1,884 sq ft)
Energy ratingE (42 out of 100), could reach C
PropertySemi-detached house, 6 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in July 2015, 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 9HA
Received
10 Dec 2025
Validated
16 Jan 2026
Ward
Blackheath
Parish
Does NOT need to go to BCAP
Case officer
Show
Target decision
19 Mar 2026
Decision
Granted
Decision date
19 Mar 2026
Decision level
Delegated
Applicant
Show

How this decision compares

Decided in 62 days from validation, 6 days slower than Lewisham's median of 56 for demolitions. Approved, as 87% of demolitions here are.

63%decided within 8 weeks
87%approved
87decided in the last year

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

Public comments

No public comments yet.

Last counted 25 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14555147
Planning Portal ref
PP-14555147
Neighbours
27 Jan 2026
Consultation
27 Jan 2026
Site or press notice
4 Feb 2026
Statutory expiry
13 Mar 2026
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2022 Approved
Certificate Of Lawful Developement (Proposed) in respect of an installation of Solar Pane…
DC/22/126744
2019 Approved
Proposed roof extension and conversion of garage door into a window on the front elevatio…
DC/19/111229
2017 Approved
Rear/side: ONE Conifer (T1) FELL. Proposal to replace with an apple tree.
DC/17/103535
Within ~100m

Nearby activity

2025
82 LOCK CHASE, LONDON, SE3 9HA
Application for a Lawful Development Certificate (proposed) submitted under Section 192 o…
DC/25/142356
2025 Approved
3 LOCK CHASE, LONDON, SE3 9HB
Application for a Lawful Development Certificate (proposed) submitted under Section 192 o…
DC/25/141238
2025 Approved
49 LOCK CHASE, LONDON, SE3 9HB
REAR: ONE Robinia 'Frisia' (T1)(ht.12m) FELL. Reason: has extensive decay to main stem an…
DC/25/141860
2025 Approved
99 QUENTIN ROAD, LONDON, SE13 5DG
REAR: ONE Bay (T1) (ht.4m) REDUCE HEIGHT by1.5m to 2.5m from 4m. LATERAL REDUCTION by0.3…
DC/25/141779
2025 Approved
40 LOCK CHASE, LONDON, SE3 9HA
FRONT: ONE Cypress (T1)(ht.4m) FELL. Reason: due to the low front wall being pushed over…
DC/25/140836
2025 Approved
20 LOCK CHASE, LONDON, SE3 9HA
Application for a Lawful Development Certificate (proposed) submitted under Section 192 o…
DC/25/139504
2025 Approved
6-16 LOCK CHASE, LONDON, SE3 9HA
ONE Holm Oak (T1)(ht. 14m) LATERAL REDUCTION by 2m from 7m to 5m on E compass point, CROW…
DC/25/139652
2025 Approved
20 LOCK CHASE, LONDON, SE3 9HA
REAR ONE Magnolia tree(T1)CROWN REDUCE HEIGHT by 1.5m from 6m to 4.5m, REDUCE RADIUS by 1…
DC/25/139195
2024 Refused
24 LOCK CHASE, LONDON, SE3 9HA
Construction of a two-storey side and rear extension with a basement and loft, installati…
DC/24/137843
2024 Approved
53 LOCK CHASE, LONDON, SE3 9HB
REAR: ONE Cherry tree (T1) LATERAL REDUCTION by 1.5m form 3m to 1.5m REASON: Regular main…
DC/24/137455
2024 Approved
73 QUENTIN ROAD, LONDON, SE13 5DG
Installation of replacement windows to the front elevation of 73 Quentin Road, London, SE…
DC/24/137025
2024 Approved
6 LOCK CHASE, LONDON, SE3 9HA
FRONT ONE Cherry tree(T1)(ht. 8m)CROWN THIN by 20% Reason: Remove two large dead limbs ar…
DC/24/136848
2024 Approved
45 LOCK CHASE, LONDON, SE3 9HB
REAR: ONE Turkey Oak (T1)(ht.9m) CROWN LIFT to 2.3m above ground level. Reason: clearance…
DC/24/135689
2024 Approved
109 QUENTIN ROAD, LONDON, SE13 5DG
FRONT: ONE Purple Japanese Maple (T1) LATERAL REDUCE by 1.5m from 8m to 6.5m on all compa…
DC/24/135884
2024 Approved
76 LOCK CHASE, LONDON, SE3 9HA
FRONT:ONE Apple tree (T1) HEIGHT REDUCTION by 1m from 7m to 6m & LATERAL REDUCTION by 2m…
DC/24/135287
2023 Approved
51 LOCK CHASE, LONDON, SE3 9HB
The construction of a single storey rear extension, a two storey side extension, two rear…
DC/23/134040
2023 Approved
60 LOCK CHASE, LONDON, SE3 9HA
Replacement of the existing steel crittall windows and hardwood sub frames to the front e…
DC/23/133456
2023 Approved
40 LOCK CHASE, LONDON, SE3 9HA
REAR ONE Acacia Tree (T1 )(HT. 10m)CROWN REDUCE HEIGHT by 4m from 10m to 6m, REDUCE RADIU…
DC/23/133205
2023 Approved
78 LOCK CHASE, LONDON, SE3 9HA
REAR: ONE Beech (T1) LATERAL REDUCE by 1m on all compass points to previous reduction poi…
DC/23/132293
2023 Approved
53 LOCK CHASE, LONDON, SE3 9HB
REAR (of 123 Lee Park): ONE Multi Stem Lime (T1)(ht.15m) LATERAL REDUCE by 2m from 8m to…
DC/23/129819
2016 Approved
20 LOCK CHASE, LONDON, SE3 9HA
The construction of a single storey rear extension at 20 Lock Chase, SE3
DC/16/095981
2016 Approved
2 LOCK CHASE, LONDON, SE3 9HA
The construction of a two storey side and rear extension at 2 Lock Chase, SE3, together w…
DC/16/095445
2016 Refused
66 QUENTIN ROAD, LONDON, SE13 5DF
The construction of a roof extension and installation of a replacement roof light in the…
DC/16/095580
2016 Approved
28 QUENTIN ROAD, LONDON, SE13 5DF
The installation of replacement double glazed timber windows on the front elevation of 28…
DC/16/095136
2016 Withdrawn
66 QUENTIN ROAD, LONDON, SE13 5DF
DC/16/095579
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.

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.