Chiswick House Estate Office,Chiswick House Grounds,Chiswick,W4 2QN Data via plota.co.uk

P/2026/2972 - Details pursuant to a planning condition REGISTERED: Under Assessment

Proposal

Details of Condition 14 (Energy Strategy and Standard Assessment Procedure/National Calculation Method) and Condition 16 (sustainable drainage scheme), submitted pursuant to permission dated 06/06/2024 for Prior Approval for Demolition of an existing shed, oil tank and part of the existing wall for a new learning hub. Erection of a new building as the volunteer base. Creation of new Fruit Garden, erection of a storage shed with hardstanding, alteration of part of the brick walls with new accesses to the Fruit Garden and Kitchen Garden. Erection of a new canopy for the Stables and its change of use to Artist Studios, installation of new signage, reconfiguration of the staff car park, and internal works to buildings including new roof insulation, heating and power. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
20 Oct 2026
Decision
Expected by 15 Dec 2026

Under consideration

No decision has been issued yet. A decision is expected by 15 Dec 2026.

The consultation period closed on 21 Oct 2026.

Associated applications 4

Site constraints 13

Grade I listed: Chiswick House Conservatory
List entry 1079611 · 5 m away · 5 more listed buildings within 150 m (3 Grade I, 2 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 5 with distances
Historic England ↗
Metropolitan Open Land
Green belt level protection inside London.
The London Plan gives Metropolitan Open Land the same protection as green belt: inappropriate development needs very special circumstances.
Registered park or garden: Chiswick House
Nationally designated heritage. Its significance and setting carry great weight.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Chiswick House conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
In flood zones plus climate change
Inside the extent flood zones 2 and 3 could reach with climate change: the Central allowance for the 2080s on rivers, the Upper End allowance for sea level rise to 2125. From the sea. Defences are not counted.
The Environment Agency flood map for planning. Councils use it to decide when a flood risk assessment and the sequential test are needed. It is indicative and does not show whether a particular property will flood.
Flood map ↗
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: 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 415 m away: Thames Tideway Tunnel
The site is 415 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 ↗
Scheduled monument 115 m away: Chiswick House
Its setting is a consideration for work nearby.
Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.
Historic England ↗
Habitat network: Wood pasture and parkland
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Hounslow built-up area; Public transport access: PTAL 0 (very poor), TfL 2023, for the 100 m square; Priority habitat 38 m away: Traditional orchard.
Not affected
Outside flood zones 2 and 3 · Not green belt

Checked on 22 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.

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Important details

Council
Hounslow
Application type
Details pursuant to a planning condition
Postcode
W4 2RP
Received
20 Oct 2026
Validated
20 Oct 2026
Ward
Chiswick Homefields
Case officer
Show
Applicant
Show

Consultation & key dates

Consultation
21 Oct 2026
Comments by
21 Oct 2026
Statutory expiry
15 Dec 2026
Hounslow
Planning Authority Score
2.1/10
Poor
#268 of 296 councils
Relevant to this application:
Change of use

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