426 Westhorne Avenue, Eltham, London, SE9 5LT Data via plota.co.uk

26/2055/HD - Householders Registered
Extensions & alterations

Proposal

Construction of ground floor side and rear wraparound extension, conversion of garage and associated works (re-consultation, amended description). Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
13 Jul 2026
✓
Validated
22 Jul 2026
✓
Consultation
26 Aug 2026
Decision
Target date was 16 Sept 2026

Under consideration

No decision has been issued yet. Plota predicted a decision around 28 Oct 2026; it is now day 98.

A re-consultation started on 26 Aug 2026. The council has not yet published the new comment deadline.

Comment on this application ↗

Documents 10

Statements & assessments 1

PDF Reasonable exception statement Document · 13 Jul 2026 View ↗

Plans & drawings 7

PDF Proposed floor and roof plans Drawing · 22 Jul 2026 View ↗ PDF Existing floor and roof plans Drawing · 22 Jul 2026 View ↗ PDF Location plan Drawing · 13 Jul 2026 View ↗ PDF Existing drawings Drawing · 13 Jul 2026 View ↗ PDF Existing elevations and section Drawing · 13 Jul 2026 View ↗ PDF Proposed drawings Drawing · 13 Jul 2026 View ↗ PDF Proposed elevations and section Drawing · 13 Jul 2026 View ↗

Application forms 1

PDF Application form redacted Application Form · 13 Jul 2026 View ↗

Other documents 1

PDF Acknowledgement letter Correspondence · 24 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 6

Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
Air quality management area: Greenwich 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 ↗
Local nature reserve 305 m away: Sutcliffe Park
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Also on the record
Inside the Greenwich built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square; Metropolitan Open Land 30 m away.
Not affected
Not green belt · No listed building at the site · No scheduled monument at the site

Checked on 6 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 2

Last sold for £614,000 in January 2025. Detached house, freehold.

14 January 2025£614,000Recorded as a transfer outside a standard sale
30 June 2017£550,000

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

Building

Floor area165 m² (1,776 sq ft)
Energy ratingE (54 out of 100), could reach C
PropertySemi-detached 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 September 2016, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

3 Jun 2026Refused

460 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT

Conversion of existing side extension element into a self-contained dwelling (Us...

26/0217/F
7 Oct 2026Pending

573 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 6DN

Prior Approval for the construction of a single storey rear extension which will...

26/2880/PN1
16 Jun 2026Approved

503 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 6DJ

Certificate of Lawfulness (Existing) is sought for the proposal seeks approval f...

26/1769/CE

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12 Oct 2026Pending

407 WESTHORNE AVENUE, ELTHAM, LONDON, SE12 9AB

Prior Approval for the construction of a single-storey rear extension which will...

26/2943/PN1
1 Oct 2026Pending

57 PASTON CRESCENT, ELTHAM, LONDON, SE12 9EF

Submission of details pursuant to discharge condition 4 (Demolition, Constructio...

26/2836/SD
28 Sept 2026Pending

J/O SIDCUP/ABERGELDIE RD, PCO1 ABERGELDIE ROAD, LONDON, SE12 8BW

Removal of a Telephone Kiosk.

26/2819/PA
18 Sept 2026Pending

73 ABERGELDIE ROAD, ELTHAM, LONDON, SE12 8BH

Certificate of Lawfulness (Proposed) is sought for change of use from an existin...

26/2710/CP
1 Sept 2026Pending

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Certificate of Lawfulness (Proposed) is sought for installation of 1no. car char...

26/2493/CP
5 Aug 2026Refused

70A SIDCUP ROAD, LONDON, SE12 8BW

Retrospective construction of an outbuilding and all associated works.

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Important details

Council
Greenwich
Application type
Householders
Postcode
SE9 5LT
Received
13 Jul 2026
Validated
22 Jul 2026
Ward
MIDDLE PARK & HORN PARK
Parish
Eltham & Kidbrooke
Case officer
Show
Target decision
16 Sept 2026
Applicant
Show
Agent
Draw and Plan

Decision outlook

Day 98, past the statutory target. 96% of extensions in Greenwich are decided within thirteen weeks; extensions of time are common, and the council need not decide on the day. Last seen undecided on 26 Oct 2026.

Day 9842 days past the 56-day target
82%decided within 8 weeks
77%approved
835decided in the last year

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

Public comments

1comment received
1 neutral

2 neighbours consulted · Last counted 26 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15077231
Planning Portal ref
PP-15077231
Consultation
26 Aug 2026
Comments by
14 Aug 2026
Statutory expiry
16 Sept 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
476 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Construction of a single storey front and side wrap around extension and construction of…
25/1477/HD
2023 Approved
404 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Change of use of a single dwellinghouse (Use Class C3a) to a residential care home (Use C…
23/2810/F
2023 Approved
BIG YELLOW STORAGE, UNIT 1, 400 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Prior Notification for Installation of Roof Mounted Solar PV Panels.
23/2756/PN3
2023 Refused
404 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Certifcate of Lawfulness (Proposed) is sought for change of use of a single dwelling hous…
23/1773/CP
2023 Approved
437 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LR
Demolition of existing conservatory and construction of a rear extension, raised patio ar…
23/1272/HD
2022 Refused
449 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LR
Construction of an outbuilding at rear of property.
22/4313/HD
2022 Refused
460 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Proposed loft conversion including the construction of a side dormer extension, installat…
22/0086/HD
2021 Approved
477 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LR
Construction of first floor rear extension featuring Juliet balcony, together with altera…
21/4099/HD
2021 Approved
460 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Garage conversion, single storey rear extension, and single storey side extension.
21/4200/HD
2021 Approved
463 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LR
Construction of a single storey rear extension.
21/4026/HD
2021 Approved
472 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Construction of a single-storey side and rear wrap around extension.
21/3953/HD
2021 Approved
416 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Demolition of existing additions for the construction of a single storey side/rear wrapar…
21/3780/HD
2021 Approved
472 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Change of use from 3-bedroom HMO (Class C4) to dwellinghouse (Class C3) and construction…
21/1234/F
2021 Approved
431 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LR
Construction of a single storey side and rear wrap around extension with associated works…
21/1468/HD
2021 Approved
431 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LR
Lawful Development Certificate (proposed) for a loft conversion with hip to gable roof en…
21/1469/CP
2021 Approved
462 WESTHORNE AVENUE, ELTHAM, SE9 5LT
Construction of a single storey rear extension and side extension to facilitate conversio…
21/0251/HD
2020 Approved
472 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Change of use from dwellinghouse (Class C3) to 3-bedroom HMO (Class C4). Retrospective.
20/3217/F
2020 Refused
474 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Construction of a 2-storey side extension and single storey side/front extension.
20/3194/HD
2020 Refused
436 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Proposed loft extension with two side dormers and rear hip to gable extension and a front…
20/2138/HD
2019 Approved
478 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Construction of a single storey side extension.
19/0437/HD
2017 Approved
406 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Construction of a single storey rear extension and new roof to garage.
17/3009/HD
2016 Refused
422 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Formation of a loft conversion comprising a rear dormer window with Juliet balcony and th…
16/3760/CP
2016 Refused
402 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Installation of new front boundary treatments.
16/1114/F
2016 Approved
453 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LR
Construction of single storey side and rear extensions and enlargement of raised patio ar…
16/0909/F
2016 Refused
424 WESTHORNE AVENUE, ELTHAM, LONDON, SE9 5LT
Loft conversion and comprising rear and side dormer windows and one front rooflight.
16/0964/F
Greenwich
Planning Authority Score
5.4/10
Average
#123 of 296 councils
Relevant to this application:
Householder decisions

Greenwich is faster than most councils at deciding householder applications, ranking #76 out of 296. Only 29% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Greenwich is also one of the strictest councils - it refuses more householder applications than almost any other, with only 78% approved vs 90% nationally.

One of the strictest councils
only 78% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Greenwich decision statistics
Based on MHCLG data, the year to March 2026
77%
Overall approval rate
Below avg (87%) #278 of 296
78%
Householder approved
Below avg (90%) #287 of 296
75%
Decided in 8 weeks
Above avg (63%) #76 of 296
29%
Extended time limit
Below avg (41%) #49 of 296
60%
Minor dwellings approved
114 decided (1-9 homes)
100%
Major dwellings approved
13 decided (10+ homes)
66%
Change of use approved
195 decided
1,468
Total decisions
331 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.