42 Onslow Gardens South Croydon CR2 9AT Data via plota.co.uk

26/02836/HSE - Householder Application Awaiting decision

Proposal

Erection of a two storey side and rear extension and associated roof alterations. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
6 Oct 2026
✓
Validated
7 Oct 2026
✓
Consultation
21 Oct 2026
Decision
Expected by 2 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 29 Nov 2026, from Croydon's recent extensions.

Site constraints 8

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: Croydon 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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Radon affected area, class 4; Inside the Croydon built-up area; Public transport access: PTAL 1b (very poor), TfL 2023, for the 100 m square; Green belt 43 m away: London; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · No scheduled monument at the site

Checked on 21 October 2026. Historic England, the Environment Agency, Natural England, 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.

Building

Floor area137 m² (1,475 sq ft)
Energy ratingF (29 out of 100), could reach E
PropertySemi-detached house, 5 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in August 2009, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Croydon
Application type
Householder Application
Postcode
CR2 9AT
Received
6 Oct 2026
Validated
7 Oct 2026
Ward
Sanderstead
Case officer
Show
Target decision
2 Dec 2026
Applicant
Show
Agent
Longa Studio

Decision outlook

Day 21 of the 56-day target. Croydon usually decides extensions by day 53.

Day 2135 days to the 56-day target
76%decided within 8 weeks
81%approved
1,012decided in the last year

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

Public comments

No public comments yet.

Last counted 21 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15271287
Planning Portal ref
PP-15271287
Consultation
21 Oct 2026
Statutory expiry
2 Dec 2026
Croydon
Planning Authority Score
3.6/10
Below average
#215 of 296 councils
Relevant to this application:
Householder decisions

Croydon ranks #159 out of 296 councils for householder decision speed. Householder applications are slightly less likely to be approved here (87%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Croydon decision statistics
Based on MHCLG data, the year to March 2026
75%
Overall approval rate
Below avg (87%) #286 of 296
87%
Householder approved
Below avg (90%) #230 of 296
62%
Decided in 8 weeks
Below avg (63%) #159 of 296
44%
Extended time limit
Above avg (41%) #177 of 296
45%
Minor dwellings approved
238 decided (1-9 homes)
58%
Major dwellings approved
12 decided (10+ homes)
53%
Change of use approved
53 decided
1,590
Total decisions
403 refused in the year to March 2026

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.