566 Chiswick Park, Building 3,Chiswick High Road,Chiswick,W4 5YA Data via plota.co.uk

P/2026/2555 - Details pursuant to a planning condition Approved

Proposal

Details of Condition 3 (mechanical services plant post completion report) submitted pursuant to permission P/2025/2431 dated 10/11/2025 for Installation of plant equipment with associated power cabling and replacement of existing plant equipment at roof level. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
8 Sept 2026
✓
Approved
26 Oct 2026

Approved on 26 Oct 2026 · Last checked 26 Oct 2026

Associated applications 3

Site constraints 7

Article 4 direction
Change of use or development that would result in new dwellings (Class MA/ZA). Named permitted development rights are withdrawn here.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 ↗
Local nature reserve 237 m away: Gunnersbury Triangle
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
National infrastructure project 1216 m away: Thames Tideway Tunnel; Conservation area 90 m away: Thorney Hedge; Inside the Hounslow built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 October 2026. 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.

Building

Floor area14,133 m² (152,126 sq ft)
Energy ratingA (asset rating 25)
UseOffices and Workshop Businesses
HeatingAir Conditioning

From the energy performance certificate lodged in June 2026, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Hounslow
Application type
Details pursuant to a planning condition
Postcode
W4 5YA
Received
8 Sept 2026
Validated
8 Sept 2026
Ward
Chiswick Gunnersbury
Case officer
Show
Decision
APPROVED
Decision date
26 Oct 2026
Applicant
Show

Consultation & key dates

Consultation
9 Sept 2026
Comments by
9 Sept 2026
Statutory expiry
3 Nov 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

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.