Mulliner House, Flanders Road, Chiswick, London, W4 1NN Data via plota.co.uk

P/2026/2835 - Non-Material Minor Amendment to an existing Planning Application REGISTERED: Under Assessment
Admin / proceduralCommercial premises

Proposal

Non material amendment to change the wording of condition 6, part a to allow for customer admission to begin from 06:00 as opposed to 07:00 of planning permission P/2025/3644 approved 24/07/2026 for the erection of a single storey side extension and an additional floor at roof level with a roof terrace, relocation of the entrance and alterations to the façade, enclosure of the basement car park to create swimming pools with landscaping, plants and associated works Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
6 Oct 2026
Decision
Expected by 1 Dec 2026

Under consideration

No decision has been issued yet. A decision is expected by 1 Dec 2026.

Documents 2

Application forms 1

PDF ApplicationFormRedacted.pdf P-Planning Application Form · 6 Oct 2026 View ↗

Other documents 1

PDF OHG Chiswick C6 NMA Cover Letter.pdf P-Supporting Information · 6 Oct 2026 View ↗

All documents on the council site ↗

Site constraints 11

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 ↗
Bedford Park conservation area
Also Bedford Park (article 4). 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.
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 Named permitted development rights are withdrawn here.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.
National infrastructure project: Thames Tideway Tunnel
The site is inside 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 ↗
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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
21 listed buildings within 150 m
Nearest: Bedford Park Works (Hj Mulliner), Grade II, 42 m away · 2 Grade II*, 18 Grade II
The site itself is not listed. 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 all 21 with distances
Historic England ↗
Also on the record
Inside the Hounslow built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square; Town centre 64 m away: Chiswick.
Not affected
Not green belt · No scheduled monument at the site

Checked on 9 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.

Sales history 1

Last sold for £15,500,000 in July 2025. Other property, freehold.

3 July 2025£15,500,000Recorded as a transfer outside a standard sale

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

Building

Floor area3,592 m² (38,664 sq ft)
Energy ratingD (asset rating 92)
UseB1 Offices and Workshop businesses
HeatingAir Conditioning

From the energy performance certificate lodged in February 2020, 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

26 Aug 2026Approved

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13 Oct 2026Pending

1 Bath Road,Chiswick,London,W4 1LL

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Important details

Council
Hounslow
Application type
Non-Material Minor Amendment to an existing Planning Application
Postcode
W4 1NN
Received
6 Oct 2026
Validated
6 Oct 2026
Ward
Chiswick Homefields
Case officer
Show
Applicant
Show

Consultation & key dates

Consultation
6 Oct 2026
Statutory expiry
3 Nov 2026

Historical activity at this location

26 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025
Erection of a single storey side extension and an additional floor at roof level with a r…
P/2025/3644
Within ~100m

Nearby activity

2025 Approved
St Michaels Vicarage Priory Gardens, Chiswick, London, W4 1TT
Works to tree within TPO 53: Oak (Quercus robur) - Removal of major deadwood and a crown…
P/2025/3161
2025 Approved
6A Bath Road, Chiswick, London, W4 1LW
Works to tree in a Conservation Area - Removal of 1 X Ash tree
P/2025/2677
2025 Approved
St Michaels Vicarage, Priory Gardens,Chiswick,W4 1TT
Works to a tree within Tree Preservation Order No. 53: Tree of Heaven (T1) - Reduce crown…
P/2025/2230
2025 Approved
St Michaels Vicarage, Priory Gardens,Chiswick,W4 1TT
Works to trees in a Conservation Area: Tree of Heaven - Reduce crown to previous pruning…
P/2025/2191
2025 Approved
1A Flanders Road, Chiswick, London, W4 1NQ
Works to trees within a conservation area: G1 Lime x 4 (Tilia spp) - Reduce all round to…
P/2025/0634
2025 Approved
1A Flanders Road, Chiswick, London, W4 1NQ
Works to tree within a conservation area: Car park area T2 Himalayan Birch x 1 (Betula ut…
P/2025/0640
2024 Approved
The Tabard, 2 Bath Road,Chiswick,W4 1LW
Works to tree in a Conservation Area - 1 x Lime to pollard back to previous pruning point…
P/2024/4364
2024 Approved
8 Flanders Road, Chiswick, London, W4 1NG
Replacement of the front door set, front wall, gate and tiles along the path to the front…
P/2024/3575
2024 Approved
Mulliner House,Flanders Road,Chiswick,W4 1NN
Works to trees in a Conservation Area - G1- 3 X Maple prune clear of building to allow 1…
P/2024/3506
2024 Refused
1 First Floor Left, Priory Gardens,Chiswick,London,Hounslow,W4 1TT
Works to tree within a conservation area: T1: Twin-stemmed Gleditsia - fell in sections t…
P/2024/3176
2024 Approved
1A Flanders Road, Chiswick, London, W4 1NQ
Works to a tree in a Conservation Area: Fig (T1) (x1) - Fell to ground level.
P/2024/2786
2024 Approved
ST MICHAELS VICARAGE PRIORY GARDENS, CHISWICK, W4 1TT
Works to a Yew tree T1 at front of site within Tree Preservation Order 40. Reduce the cro…
P/2024/1032
2024 Approved
8 FLANDERS ROAD, CHISWICK, W4 1NG
Erection of a rear roof extension with one rear roof window and one front roof window, de…
P/2024/0859
2023 Refused
8-10 BATH ROAD, CHISWICK, W4 1LW
Listed Building Consent for replacement of all existing timber framed single glazed front…
P/2023/3356
2023 Refused
8-10 BATH ROAD, CHISWICK, W4 1LW
Replacement of all existing timber framed single glazed front windows with new timber fra…
P/2023/3353
2023 Approved
ST MICHAELS VICARAGE PRIORY GARDENS, CHISWICK, LONDON, W4 1TT
Felling of a Acacia tree at front of site within TPO No 40
P/2023/0580
2022 Approved
4 FLANDERS ROAD, CHISWICK, W4 1NG
Works to four trees in rear garden within a conservation area. Apple (T1) crown reduce he…
P/2022/3561
2022 Refused
ST MICHAELS VICARAGE PRIORY GARDENS, CHISWICK, LONDON, W4 1TT
Fell Robinia (T1) and treat stump with herbicide to prevent regrowth at front of site wit…
P/2022/3164
2022 Approved
10B BATH ROAD, CHISWICK, LONDON, W4 1LW
Works to Purple Leaf Plum tree (T1) in rear garden in conservation area. Reduce back to p…
P/2022/2684
2022 Approved
1A FLANDERS ROAD, CHISWICK, W4 1NQ
Front Garden T1 Lime x 4 (Tilia spp): Reduce all around to previous pollard points by app…
P/2022/2526
2016 Approved
THE TABARD 2 BATH ROAD CHISWICK LONDON W4 1LW
Listed building application for internal alterations and external re-decorations.
P/2016/2641
2016 Refused
86 THORNTON AVENUE CHISWICK LONDON W4 1QQ
Erection of rear extension at first and second floors
P/2016/2811
2016 Withdrawn
86A THORNTON AVENUE CHISWICK LONDON W4 1QQ
Erection of a first and second floor rear extension with enlargement of external stairwel…
P/2016/0750
2016 Approved
804-834 BATH ROAD CHISWICK LONDON
Details of contiminated land pursuant to condition 18a and 18b of planning permission 000…
P/2016/0488
2016 Approved
2 PRIORY GARDENS CHISWICK LONDON W4 1TT
Works to trees within a conservation area - Ash (T1) - crown reduce by 15-20% approx 2m f…
P/2016/0276
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
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.