Interior Designer · HA7
Interior design in Stanmore
Katherine Varnava Interiors is a luxury interior designer for homes and commercial spaces in Stanmore. A BIID Registered Interior Designer® studio based in Mayfair, London, it offers full interior design, technical design and bespoke joinery, FF&E procurement and a single design-and-build service, with Katherine personally involved in every project.
Homes in Stanmore
Stanmore combines a historic hilltop village along Stanmore Hill with the 1920s and 1930s Canons Park Estate, laid out in the grounds of the eighteenth century Canons mansion. Both are conservation areas, and many houses keep original windows, leaded lights and joinery that a sensitive interior scheme works with rather than against.
Stanmore Hill conservation area has buildings from the eighteenth to the early twentieth century, including Georgian houses at 17, 23, 37, 73 and 78 Stanmore Hill, Victorian Gothic and Tudor Revival villas, and cottages on Green Lane; the appraisal notes that most buildings are listed or locally listed. The Canons Park Estate was laid out by A J Butcher in the 1920s and 1930s as Metroland housing and is mostly Tudor Revival, with some Arts and Crafts houses and a 1930s modernist house at 2 Rose Garden Close. Typical interiors involve opening up and modernising family houses while retaining leaded casements, oak front doors and period detail.
How the studio works
Every project, from a single room to a whole house or a commercial space, follows the same five-stage, RIBA-aligned journey: Define, Develop, Resolve, Deliver and Complete. The studio works alongside your architect and contractor, or delivers a single design-and-build service from concept to completion.
- Full interior design, from a single room to a whole house
- Interior architecture and spatial planning
- Technical design and bespoke joinery
- Lighting design
- FF&E design, procurement and installation
- Commercial interiors
- Design and build, or alongside your architect and contractor
The studio takes on projects across HA7, including streets such as Stanmore Hill, Green Lane, Halsbury Close, Old Church Lane and Canons Drive.
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Before you start in Stanmore
The consents and local rules that most often shape an interior project here, each linked to its official source. The studio checks them for your property at the start, so they are planned into the design and the programme.
Historic England states that listing status covers the entire building, inside and out, and that works needing listed building consent can include internal alterations as well as replacement windows. Consent is needed for any change that might affect the building's character as a building of special interest, and carrying out unauthorised works to a listed building is a criminal offence.Source: historicengland.org.uk
Stanmore Hill was designated in 1975 and its appraisal and management strategy (December 2013) says most buildings are listed or locally listed, with 73 Stanmore Hill listed grade II*. The appraisal asks for traditional windows to be retained wherever possible and replacements to match the original in traditional materials, and an Article 4 direction from 2003 brings works fronting a highway, including porches and exterior painting, under planning control.Source: harrow.gov.uk
Canons Park Estate was designated on 19 April 1990 and has an Article 4 direction. Its 2013 appraisal records leaded lights, oriel windows, some stained glass on Canons Drive and heavy studded timber front doors as characteristic, and says replacing original doors and windows in large numbers would harm the area.Source: harrow.gov.uk
Harrow Council's permitted hours for noisy construction work are 8am to 6pm Monday to Friday and 8am to 1pm on Saturday, with no noisy work on Sundays or bank holidays.Source: harrow.gov.uk
Harrow suspends marked bays for skips or major building works on application to [email protected], with processing taking up to 10 working days. Single yellow line dispensations inside controlled parking zones can be issued for building work and large deliveries.Source: harrow.gov.uk
Questions
Interior design in Stanmore
Is my house on Stanmore Hill likely to be listed?
Quite possibly. The Stanmore Hill conservation area appraisal states that most buildings there are listed or locally listed, with 73 Stanmore Hill listed grade II*, and notes that 99 Stanmore Hill retains much of its mid nineteenth century interior fittings. We confirm the listing status at the outset, record surviving features, and prepare a listed building consent application where the interior scheme calls for one.Source: harrow.gov.uk
Can I change the leaded windows in a Canons Park house?
Take advice before you do. The Canons Park Estate has an Article 4 direction, and its appraisal identifies leaded lights, casements with mullions and transoms, and original front doors as part of the estate's character, warning that widespread replacement would harm it. Where thermal or acoustic upgrades are needed, secondary glazing, repair and internal shutters can often be designed into the interior scheme instead.Source: harrow.gov.uk
When can builders and fitters work in Stanmore?
Stanmore is in the London Borough of Harrow, which permits noisy construction work from 8am to 6pm Monday to Friday and 8am to 1pm on Saturday, with none on Sundays or bank holidays. We sequence the noisy stages of a project within these hours and keep later finishing trades and deliveries considerate of neighbours.Source: harrow.gov.uk
Do you take on single rooms as well as whole houses in Stanmore?
Yes. Projects range from a single room, which can also be designed remotely through the Virtual Studio, to whole-house refurbishments, new builds and commercial spaces. Every project follows the same five-stage, RIBA-aligned process: Define, Develop, Resolve, Deliver and Complete.
Can you manage the build as well as the design?
Yes. The studio can work alongside your architect and contractor, providing contractor coordination and design oversight on site, or deliver a single design-and-build service that takes the project from concept to completion.
Will Katherine be involved personally?
Yes. Katherine Varnava, a BIID Registered Interior Designer®, leads every project herself. The studio takes on a deliberately limited number of projects each year so that she stays involved in every detail, from concept to completion.
Updated 17 October 2026
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