1 - 18 Claremont Grove, Chiswick, W4 2TL Data via plota.co.uk

PA/2026/1820 - PA Refused

Proposal

Prior approval for the erection of two additional storeys to create 18 new self contained flats, comprising of six studio flats and 12 one-bedroom one-person flats (Use Class C3) Data via plota.co.uk

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View original council record ↗Last checked 4 Oct 2026, 08:38

Application progress

✓

Received

16 Jun 2026

✗

Refused

27 Jul 2026

Appeal

Not lodged

Refused on 27 Jul 2026 · Last checked 17 Sept 2026

Documents 17

Decision & officer reports 2

PDF PANAR P-Decision Notice · 27 Jul 2026 View ↗ PDF P-Delegated Report P-Delegated Report · 24 Jul 2026 View ↗

Statements & assessments 3

PDF P-Flood Risk Assessment P-Flood Risk Assessment · 16 Jun 2026 View ↗ PDF P-Transport Assessment P-Transport Assessment · 16 Jun 2026 View ↗ PDF P-Daylight or sunlight assessment P-Daylight or sunlight assessment · 16 Jun 2026 View ↗

Plans & drawings 9

Application forms 1

PDF P-Planning Application Form P-Planning Application Form · 16 Jun 2026 View ↗

Site constraints 9

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 ↗

Article 4 direction

Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction. Named permitted development rights are withdrawn here.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: Hounslow 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 ↗

National infrastructure project about 397 m away: Thames Tideway Tunnel

The site is about 397 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted.

Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.

Planning Inspectorate project page ↗

Habitat network: Network Enhancement Zone 2

Where habitat is joined up enough to work as a network. Context, not a constraint on its own.

Local nature reserve about 297 m away: Leg of Mutton Reservoir

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 Hounslow built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square; Metropolitan Open Land about 40 m away.

Not affected

Not green belt · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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.

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Important details

Council: Hounslow
Application type: PA
Postcode: W4 2TL
Received: 16 Jun 2026
Validated: 16 Jun 2026
Ward: Chiswick Homefields
Case officer: Show
Decision: Prior Approval Needed and Refused
Decision date: 27 Jul 2026
Applicant: Show

How this decision compares

Decided in 41 days from validation, 15 days faster than Hounslow's median of 56 for changes of use. Refused, as 48% of changes of use here are.

This one41d

Council56d

UK56d

62%decided within 8 weeks

52%approved

102decided in the last year

Plota live figures for changes of use decided by Hounslow in the last twelve months, from validation. Hounslow decision record →

Public comments

No public comments yet.

Read the comments on the council site ↗

Consultation & key dates

Consultation: 18 Jun 2026
Comments by: 9 Jul 2026
Statutory expiry: 11 Aug 2026

Hounslow

Planning Authority Score

2.1/10

Poor

#268 of 296 councils

Relevant to this application:

Householder decisions

Hounslow is slower than most councils at deciding householder applications, ranking #203 out of 296. 47% of applications have the time limit extended, above the 41% national average. Hounslow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 75% approved vs 90% nationally.

One of the strictest councils

only 75% approved vs 90% nationally

These figures are council-wide context, not a prediction for this application. View full council performance

Hounslow decision statistics

Based on MHCLG data, the year to March 2026

71%

Overall approval rate

Below avg (87%) #294 of 296

75%

Householder approved

Below avg (90%) #293 of 296

56%

Decided in 8 weeks

Below avg (63%) #203 of 296

47%

Extended time limit

Above avg (41%) #208 of 296

38%

Minor dwellings approved

82 decided (1-9 homes)

93%

Major dwellings approved

14 decided (10+ homes)

29%

Change of use approved

72 decided

1,191

Total decisions

340 refused in the year to March 2026

1 - 18 Claremont Grove, Chiswick, W4 2TL Data via plota.co.uk

Proposal

Application progress

Documents 17

Decision & officer reports 2

Statements & assessments 3

Plans & drawings 9

Application forms 1

Other documents 2

Site constraints 9

Other new applications on this street

Nearby new applications

Important details

How this decision compares

Public comments

Consultation & key dates