Architectural & Interior Design in Harrow, HA1
Architectural and interior design for homes in Harrow: measured survey, concept options, planning and building regulation drawings, and a complete interior specification.
Covered under one contract
- Measured survey and existing drawings
- Concept options and developed design
- Planning and building regulation drawings
- Interior design, finishes and lighting
- 3D visuals
- Specification for pricing
Architectural & Interior Design in Harrow.
Good building starts with good drawings. Our in-house architects and interior designers take a project in Harrow from a first conversation to a set of drawings the council will validate and a builder can price, and because we are also the builder, the drawings are produced with construction in mind from the first sketch.
The design stage begins with a measured survey of the existing house and a conversation about how you live. From that we draw two or three options, develop the one you choose, and produce the planning application, building regulation drawings and interior specification: finishes, lighting, joinery, kitchen and bathrooms, all as one coordinated scheme.
We design to the policies of the London Borough of Harrow from the outset, so schemes are not redrawn after a refusal, and we obtain pre-application advice where that would help. Many clients start with the design stage alone and decide later whether to build with us; the drawings are theirs either way.
- Area
- Harrow, HA1 · HA2
- Council
- London Borough of Harrow
- Housing
- 1930s semi-detached and detached houses, Victorian and Edwardian houses on the Hill, inter-war terraces around Rayners Lane and North Harrow
- Transport
- Harrow-on-the-Hill (Metropolitan), Rayners Lane, North Harrow
- Scope
- Survey to construction drawings
- Design stage
- 4 to 8 weeks
- Deliverables
- Drawings, specification, visuals
- Team
- Architects, interior designers, structural engineer
- Follows on to
- Fixed, itemised build quotation
Harrow: the houses and the planning rules.
Harrow is Metroland: the streets around Harrow-on-the-Hill, North Harrow and Rayners Lane were built between the wars for commuters on the Metropolitan line, with generous semi-detached houses on plots that suit rear extensions and loft conversions. On the Hill itself, the village around the school is older, with Victorian and Georgian houses inside a conservation area.
It is one of our busiest areas. We have built a rear extension with bi-fold doors and a new kitchen in Rayners Lane, a loft and six-metre rear extension in Harrow on the Hill, refurbished a house in North Harrow, and fitted out cafés in St George's shopping centre and at the bus station.
The Harrow on the Hill Village and Roxeth Hill conservation areas cover the Hill; most of the borough is unrestricted.
London Borough of Harrow
Harrow decides applications. Outside the Hill's conservation areas, most rear extensions and loft conversions fall within permitted development, subject to the usual size limits.
Permitted development
Single-storey rear extensions up to 3 metres, or 6 metres with prior approval, and rear dormers within 50 cubic metres are typical. A lawful development certificate is worth obtaining for resale.
Harrow on the Hill
Within the village conservation area, extensions and roof changes need a planning application and matching materials.
Approvals for architectural and interior design in Harrow.
Drawings are prepared to the council's validation requirements from the outset, so design and application are one exercise. Where pre-application advice would help, we obtain it before the application is submitted.
Harrow decides applications. Outside the Hill's conservation areas, most rear extensions and loft conversions fall within permitted development, subject to the usual size limits.
What architectural and interior design in Harrow includes.
- Measured survey and existing drawings
- Concept options and developed design
- Planning and building regulation drawings
- Interior design, finishes and lighting
- 3D visuals
- Specification for pricing
From site visit to handover.
- 01
Site visit and brief
We visit, listen and measure, and agree the brief and a fixed design fee.
- 02
Concept options
Layouts and sketches for discussion, usually within two weeks.
- 03
Developed design
The chosen scheme drawn in full, with finishes and visuals.
- 04
Approvals
Planning, listed building and building regulation submissions.
- 05
Build quotation
An itemised price for construction from the finished drawings.
Architectural & Interior Design in Harrow: your questions.
Do you offer design only in Harrow?
Yes. Many clients start with the design stage, obtain approvals, and then decide whether to build with us. The design fee is fixed at the outset and the drawings are yours.
Will you design to the local planning rules?
We design to the policies of the London Borough of Harrow from the first sketch, so the scheme is not redrawn after a refusal. Where pre-application advice would help, we obtain it.
Which parts of Harrow do you cover?
All of Harrow and HA1 · HA2, including Rayners Lane, Pinner Road, Harrow View, Roxeth Hill, High Street, Harrow on the Hill, Station Road, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
Our work near Harrow.
Other services in Harrow.

House Refurbishment in Harrow
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Flat Refurbishment in Harrow
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House Extensions in Harrow
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Structural Alterations in Harrow
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Loft Conversions in Harrow
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Basement Conversions in Harrow
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Kitchen Renovation in Harrow
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Bathroom Renovation in Harrow
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Bespoke Joinery & Fitted Furniture in Harrow
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Planning Permission & Building Regulations in Harrow
Read moreArchitectural & Interior Design across London.
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All of North-West LondonTalk to us about the design of your project in Harrow.
We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.



