Luxury Builders
in Chiswick

Prime residential construction in Chiswick

Crown Building works at the top of the London market, and Chiswick is core territory for our team. The projects in our published case studies were delivered under exactly the constraints that define this part of London. Protected fabric, exacting consents, discreet site conduct and clients who judge the result at touching distance.

We do not operate at volume. We compete on execution. Meticulous programming, a trusted specialist supply chain and senior management present on site throughout are the baseline for every commission we accept in Chiswick. The standard does not change with the scale of the project.

What we build in Chiswick

Our residential work spans the full scope of high end building. We deliver architecturally distinctive new build homes, private residence refurbishments and structural reconfigurations, single and multistorey extensions, basement excavations, listed and period property works, and the bespoke joinery and interiors that define a finished home. Each project is delivered as design and build or contractor only, with Crown appointed as your prime residential main contractor, and transparent, itemised pricing from the outset. Commercial occupiers are served by the same teams through our commercial fit out division, and clinical and wellness premises through our healthcare and specialist environments team.

Bedford Park's Norman Shaw houses sit in one of London's most protective conservation areas, where extensions and refurbishments must be detailed to satisfy both the council and the Bedford Park Society. Grove Park and the Glebe estate carry substantial Victorian family houses suited to a full private residence refurbishment, while Chiswick Mall's listed Georgian riverside homes bring flood zone and heritage constraints together. We plan for all of it before a single wall is touched, consents, party walls, logistics on narrow streets, because that is where Chiswick projects are won or lost.

Areas we serve

We work throughout Chiswick, Bedford Park, the Glebe estate, Grove Park, Strand on the Green and Chiswick Mall, plus Barnes, Kew and Hammersmith. You can see our full coverage, London within the M25 and a fifteen mile radius of our Watford headquarters, on our areas we cover page.

Hounslow has no basement policy, and controls depth instead

This is a genuine difference from the boroughs immediately east. Hounslow's adopted Local Plan contains no standalone basement policy. Basements appear only as a clause within Policy SC7 on residential extensions and alterations, and the Council has committed to preparing a supplementary planning document that has not yet appeared. The emerging Local Plan, submitted for examination in June 2025 and still not adopted, repeats the same position.

What actually governs is the Character, Sustainability and Design Codes SPD adopted in May 2024, which supersedes the 2017 extension guidelines still widely quoted online. Unusually, it controls basements by absolute depth rather than garden percentage: no deeper than a single subterranean floor, no extension beyond the main front or side walls, and beneath a garden a maximum depth of 3.05 metres for a terraced house, 3.65 metres for a semi detached and 4.25 metres for a detached property. A minimum one metre of reinstated soil is required over a garden basement, lightwells are limited to one metre from the front wall and two metres from the rear, access must be internal with no external stairs, and new basements to listed buildings are opposed in principle.

Bedford Park: basements are not permitted at all

If your property is in the Bedford Park Conservation Area, the position is not a presumption to be argued but an outright prohibition. The Council's adopted design code states that no basements are allowed in the Bedford Park Conservation Area. That is unusual even by London standards and it is absolute.

It compounds with two further constraints. Every surviving original building in the suburb has been listed Grade II since 1967, so the whole building is protected inside and out. And an Article 4(2) Direction made in July 2001 removes permitted development rights for windows, doors, roofs, porches and chimney stack works on elevations fronting a highway, open space or waterway. Bedford Park is among the most tightly controlled residential areas in west London, and a scheme conceived without that in mind will not survive contact with the planning system.

Chiswick's stock, and the three directions that apply borough wide

The Council characterises Chiswick as running from elegant Edwardian mansion blocks on the High Road, through the late nineteenth century Arts and Crafts garden suburb of Bedford Park, to grids of Edwardian and Victorian terraced streets to the south, with the eighteenth century riverside houses of Strand on the Green adding another layer again. Each behaves differently on site, and the mansion blocks in particular bring freeholder consent and shared access constraints that a house does not.

Hounslow keeps its borough wide Article 4 directions to three: the Bedford Park and Gunnersbury Park one described above, a small house in multiple occupation direction in force since September 2023, and a direction covering commercial to residential conversion and demolition and rebuild, in force since April 2025. Twelve conservation areas cover Chiswick, among the borough's twenty nine: Bedford Park, Chiswick High Road, Chiswick House, Glebe Estate, Grove Park, Old Chiswick, Stamford Brook, Strand on the Green, Thorney Hedge, Turnham Green, Wellesley Road and Kew Bridge.

Speak to us about your Chiswick project

If you are planning a refurbishment, basement or new build in Chiswick, call us on 020 3675 3999 or book a free consultation here. Every enquiry is handled by a director.

Frequently asked questions

Where is Crown Building based?

Crown Building's registered office is at Unit 324-B, The Wenta Business Centre, Colne Way, Watford, WD24 7ND. We work throughout London within the M25 and across Hertfordshire and the Home Counties.

Which areas around Chiswick do you cover?

We cover Bedford Park, the Glebe estate, Grove Park, Strand on the Green and Chiswick Mall, plus Barnes, Kew and Hammersmith.

Can you work within the Bedford Park conservation area?

Yes. Conservation area consent, sympathetic external detailing and heritage appropriate materials are standard for us: the same discipline we apply to listed work across prime central London.