43 Blythe Hill Lane, London, SE6 4UP Data via plota.co.uk

DC/26/145507 - Lawful Development Certificate proposed Registered
Extensions & alterations

Proposal

Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) under Class A of Schedule 2, Part 1 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the construction of a single storey extension to the rear and alterations to the elevations at 43 Blythe Hill Lane SE6. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
23 Sept 2026
Decision
Expected by 18 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 18 Nov 2026, from Lewisham's recent extensions.

Documents 19

Plans & drawings 18

PDF (ga)101 As proposed ground floor plan - rear garden Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ex)100 As proposed ground floor plan Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ga)102 As proposed first floor plan Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ga)200 As proposed front elevation Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ex)300 As existing general section aa Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ex)202 As existing side elevation Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ex)100 As existing ground floor plan Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ex)200 As existing front elevation Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ex)102 As existing first floor plan garden roof plan Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ex)201 As existing rear elevation Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ex)101 As existing ground floor plan - rear garden Case Copy Drawings · 23 Sept 2026 View ↗ PDF Location plan Case Copy Drawings · 23 Sept 2026 View ↗ PDF (tp)003 Proposed block plan Case Copy Drawings · 23 Sept 2026 View ↗ PDF (tp)001 Location plan Case Copy Drawings · 23 Sept 2026 View ↗ PDF (tp)002 Site plan Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ga)300 Proposed general section aa Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ga)201 As proposed rear elevation Case Copy Drawings · 23 Sept 2026 View ↗ PDF (ga)202 As proposed side elevation Case Copy Drawings · 23 Sept 2026 View ↗

Application forms 1

PDF Redacted Application form Application Form · 23 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 5

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.
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Crofton Park and Honor Oak Park Air Quality Management Area
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 Lewisham built-up area; Public transport access: PTAL 1b (very poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 9 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 4

Last sold for £575,000 in June 2016. Terraced house, freehold.

10 June 2016£575,000
30 June 2006£242,500
18 March 2005£193,000
3 February 1995£68,250

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

Building

Floor area79 m² (850 sq ft)
Energy ratingE (52 out of 100), could reach B
PropertyMid-terrace house, 4 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in February 2016, 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
Lawful Development Certificate proposed
Postcode
SE6 4UP
Received
23 Sept 2026
Validated
23 Sept 2026
Ward
Crofton Park
Case officer
Show
Target decision
18 Nov 2026
Applicant
Show
Agent
Outpost

Decision outlook

Day 27 of the 56-day target. Lewisham usually decides extensions by day 56.

Day 2729 days to the 56-day target
76%decided within 8 weeks
86%approved
782decided in the last year

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

Public comments

No public comments yet.

Last counted 16 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15239397
Planning Portal ref
PP-15239397
Statutory expiry
18 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
45 BLYTHE HILL LANE, LONDON, SE6 4UP
Application for a Lawful Development Certificate (proposed) submitted under Section 192 o…
DC/26/142556
2025 Refused
45 BLYTHE HILL LANE, LONDON, SE6 4UP
Application for a Lawful Development Certificate (proposed) submitted under Section 192 o…
DC/25/142243
2025 Approved
48 BLYTHE HILL LANE, LONDON, SE6 4UN
Construction of a of hip to gable loft extension and rear dormer extension and two roof l…
DC/25/139207
2024 Approved
53 BLYTHE HILL LANE, LONDON, SE6 4UN
Proposed construction of a rear ground floor wrap around extension and loft conversion in…
DC/24/138129
2024 Approved
17 BLYTHE HILL LANE, LONDON, SE6 4UP
Alteration and conversion of the existing garage into a habitable room, together with the…
DC/24/135461
2024 Approved
21 BLYTHE HILL LANE, LONDON, SE6 4UP
Construction of a single-storey wraparound rear extension at 21 Blythe Hill Lane SE6.
DC/24/134404
2023 Approved
19 BLYTHE HILL LANE, LONDON, SE6 4UP
Construction of a single storey rear extension, at 19 Blythe Hill Lane, SE6.
DC/23/133221
2023 Refused
19 BLYTHE HILL LANE, LONDON, SE6 4UP
Application for a Lawful Development Certificate (proposed) submitted under Section 192 o…
DC/23/132262
2022 Approved
28 BLYTHE HILL LANE, LONDON, SE6 4UN
Construction of a single storey rear extension at 28 Blythe Hill Lane, SE6
DC/22/129552
2022 Approved
25 BLYTHE HILL LANE, LONDON, SE6 4UP
Lawful Development Certificate (proposed) in respect of the construction of single storey…
DC/22/125715
2020 Approved
36 BLYTHE HILL LANE, LONDON, SE6 4UN
Lawful Development Certificate (Proposed)removal of an internal door for the enclosure of…
DC/20/119104
2020 Approved
48 BLYTHE HILL LANE, LONDON, SE6 4UN
Lawful Development Certificate (proposed) for a single storey rear extension at 48 Blythe…
DC/20/116619
2020 Approved
48 BLYTHE HILL LANE, LONDON, SE6 4UN
The construction of a single storey side and rear extension at 48 Blythe Hill Lane SE6.
DC/20/116015
2019 Approved
36 BLYTHE HILL LANE, LONDON, SE6 4UN
Lawful Development Certificate (Proposed) for the construction of a rear roof extension a…
DC/19/113130
2019 Approved
69 BLYTHE HILL LANE, LONDON, SE6 4UN
The construction of a single storey side/rear extension at 69 Blythe Hill Lane, SE6, toge…
DC/19/112760
2019 Approved
31 BLYTHE HILL LANE, LONDON, SE6 4UP
The construction of a single storey side/ rear infill extension at 31 Blythe Hill Lane SE…
DC/19/111478
2019 Approved
100 RAVENSBOURNE ROAD, LONDON, SE6 4UT
The construction of a single storey infill extension to the rear of 100 Ravensbourne Road…
DC/19/111770
2019 Approved
100 RAVENSBOURNE ROAD, LONDON, SE6 4UT
Lawful Development Certificate (Proposed) in respect of the construction of extensions to…
DC/19/111757
2019 Approved
57 BLYTHE HILL LANE, LONDON, SE6 4UN
Lawful Development Certificate (Proposed) in respect of a rear roof extension at 57 Blyth…
DC/19/110598
2018 Approved
31 BLYTHE HILL LANE, LONDON, SE6 4UP
Lawful development certificate (proposed) for the construction of rear roof extensions at…
DC/18/109141
2016 Approved
37 BLYTHE HILL LANE, LONDON, SE6 4UP
The construction of a single storey extension at the rear of 37 Blythe Hill Lane SE6.
DC/16/098352
2016 Refused
90 MONTACUTE ROAD, LONDON, SE6 4XQ
The construction of a hip to gable and roof extension in the rear roof slope at 90 Montac…
DC/16/098323
2016 Refused
90 MONTACUTE ROAD, LONDON, SE6 4XQ
Lawful Development Certificate (proposed) for a hip to gable roof extension at 90 Montacu…
DC/16/097608
2016 Approved
25 BLYTHE HILL LANE, LONDON, SE6 4UP
Lawful Development Certificate (Proposed) in respect of the construction of roof extensio…
DC/16/096932
2016 Withdrawn
25 BLYTHE HILL LANE, LONDON, SE6 4UP
The construction of roof extensions in the rear roof slopes at 25 Blythe Hill Lane SE6, t…
DC/16/095996
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.