Postcode record · Lewisham
SE23 3AL.
SE23 3AL has 30 known premises and 17 planning records — 12 approved of 16 decided (75%). 20 EPC records.
Postcode SE23 3AL · boundary not held, centred on the postcodeApprovedRefusedOther17 exact1 approximate18 on the map — every match
At a glance · this postcodeLewisham profile →
30
Premises
known addresses (UPRNs)
17
Applications
16 decided
75%
Approval rate
12 approved · 3 refused
20
EPC records
ratings C 6 · D 8 · E 5 · F 1
18
Mapped applications
inside the postcode shape
Postcode unit boundary from Ordnance Survey; premises and applications inside it. Aggregates describe the area, not any single premises.
Property
What is it?
SE23 3AL has 30 known premises and 17 planning records — 12 approved of 16 decided (75%). 20 EPC records.
Premises (18 of 30 shown)
Name
Details
UPRN 10025179181
UPRN 10090785429
UPRN 10090785430
UPRN 10090785431
UPRN 10090785432
UPRN 10090785433
UPRN 100021990425
UPRN 100021990426
UPRN 100021990428
UPRN 100021990429
UPRN 10025179181
UPRN 10090785429
UPRN 10090785430
Show all 10 rows
UPRN 10090785431
UPRN 10090785432
UPRN 10090785433
UPRN 100021990425
UPRN 100021990426
UPRN 100021990428
UPRN 100021990429
Planning
What happened?
17 planning applications across the postcode; 12 approved of 16 decided (75%). Latest 17 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
An application submitted under Section 96A of the Town and Country Planning Act 1990 for a non material amendment to planning permission DC/25/142073, dated 11 November 2025 in order to allow to reduce the width of the approved extension at 25 Netherby Road SE23.
25 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Non Material Amendments
Registered
2026-05-18
Application for a Lawful Development Certificate (Proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Classes B and C of Schedule 2, Part 1�of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the construction of a rear roof extension, together with the installation of a roof light in the front roof slope at 25 Netherby Road, SE23.
25 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Lawful Development Certificate proposed
Approved
2025-11-10
Construction of a single-storey rear extension and all associated works at 25 Netherby Road SE23.
25 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Householder Application
Approved
2025-11-10
Householder Prior Approval for the construction of a single storey extension at 21 Netherby Road SE23. The proposal would measure 6.0m beyond the rear wall of the property, with a maximum height of 3.0m and an eaves height of 3.0m.
21 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Householder Prior Approval
Refused
2022-03-28
Certificate Of Lawful Development (Proposed) in respect of the construction of dormer roof extensions to the rear main roof slopes at 9 NETHERBY ROAD SE23, together with the installation of roof lights in the front roof slope and installation of roof window to closet wing.
9 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Lawful Development Certificate proposed
Approved
2021-03-12
A proposed side, rear and roof extension and associated alterations at 37 Netherby Road SE23.
37 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Householder Application
Approved
2013-11-13
The construction of a single storey extension to the rear of 15 Netherby Road SE23.
15 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Full Planning Permission
Approved
2012-02-10
The construction of a single storey extension to the rear of 17 Netherby Road SE23.
17 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Full Planning Permission
Approved
2011-10-05
The construction of a dormer extension in the front roof slope at 15 Netherby Road SE23.
15 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Full Planning Permission
Refused
2011-09-28
The alteration and conversion of 7 Netherby Road SE23 and construction of a part single/part two storey extension to the rear and alterations to elevations, including the installation of roof lights in the front roof slope, to provide 2, one bedroom, 2, two bedroom and 1, three bedroom, self-contained flats, together with the provision of a bin store and 2 car parking spaces.
7 Netherby Road, London, SE23 · premises record
Applicant Miller Developments Ltd · Agent Eurohaus Ltd
Full Planning Permission
Approved
2008-01-30
An application submitted under Section 96A of the Town and Country Planning Act 1990 for a non material amendment to planning permission DC/25/142073, dated 11 November 2025 in order to allow to reduce the width of the approved extension at 25 Netherby Road SE23.
25 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Registered
2026-05-18
More
Non Material Amendments
Application for a Lawful Development Certificate (Proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Classes B and C of Schedule 2, Part 1�of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the construction of a rear roof extension, together with the installation of a roof light in the front roof slope at 25 Netherby Road, SE23.
25 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Approved
2025-11-10
More
Lawful Development Certificate proposed
Construction of a single-storey rear extension and all associated works at 25 Netherby Road SE23.
25 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Approved
2025-11-10
More
Householder Application
Show all 10 rows
Householder Prior Approval for the construction of a single storey extension at 21 Netherby Road SE23. The proposal would measure 6.0m beyond the rear wall of the property, with a maximum height of 3.0m and an eaves height of 3.0m.
21 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Refused
2022-03-28
More
Householder Prior Approval
Certificate Of Lawful Development (Proposed) in respect of the construction of dormer roof extensions to the rear main roof slopes at 9 NETHERBY ROAD SE23, together with the installation of roof lights in the front roof slope and installation of roof window to closet wing.
9 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Approved
2021-03-12
More
Lawful Development Certificate proposed
A proposed side, rear and roof extension and associated alterations at 37 Netherby Road SE23.
37 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Approved
2013-11-13
More
Householder Application
The construction of a single storey extension to the rear of 15 Netherby Road SE23.
15 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Approved
2012-02-10
More
Full Planning Permission
The construction of a single storey extension to the rear of 17 Netherby Road SE23.
17 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Approved
2011-10-05
More
Full Planning Permission
The construction of a dormer extension in the front roof slope at 15 Netherby Road SE23.
15 NETHERBY ROAD, LONDON, SE23 3AL · premises record
Refused
2011-09-28
More
Full Planning Permission
The alteration and conversion of 7 Netherby Road SE23 and construction of a part single/part two storey extension to the rear and alterations to elevations, including the installation of roof lights in the front roof slope, to provide 2, one bedroom, 2, two bedroom and 1, three bedroom, self-contained flats, together with the provision of a bin store and 2 car parking spaces.
7 Netherby Road, London, SE23 · premises record
Applicant Miller Developments Ltd · Agent Eurohaus Ltd
Approved
2008-01-30
More
Full Planning Permission
Building control
Building-control records are not yet collected for Lewisham — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 30 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Small HMO Northern Extension · reference SHMOEXTA4 · covers 30 of 30 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Small HMO Northern Extension · reference SHMOEXTA4 · covers 30 of 30 premises. Some normally permitted changes may require planning permission.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
People
Who is involved?
Named on the latest 17 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 3 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 3 applications
Applicant on 2 applications
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Development
What could it become?
Planning precedent17 applications and 18 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy20 EPC records; ratings C: 6, D: 8, E: 5, F: 1.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals
Planning Atlas ProOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
6 intent signals recorded in this postcode
Charge registered · EPC F/G · Long hold
Subscribe to see the signals →Thinking about a project here?
How long would a planning application take here? →
Lewisham's real decision times and approval rates, measured from the record — not the statutory target.
Why do applications around here get refused? →
The most common refusal grounds in Lewisham, by year and scheme type — the risks to know before applying.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.