Loft Conversions in South Harrow, HA2
Dormer, hip-to-gable and mansard loft conversions for houses in South Harrow: a bedroom and bathroom under the roof, designed and built by one team.
Covered under one contract
- Structural design and calculations
- Planning or lawful development certificate
- New staircase, dormer and roof windows
- Insulation, fire safety and building control
- En-suite designed and fitted
- Waterproofing with guarantee for basements
Loft Conversions in South Harrow.
A loft conversion adds a bedroom and bathroom without touching the garden, and in most of South Harrow it is the most cost-effective way to gain a floor. Which type suits your house depends on the roof: Victorian and Edwardian terraces usually take a rear dormer, 1930s semis with hipped roofs need a hip-to-gable conversion to make the space usable, and in conservation areas a mansard or rooflight scheme may be the only option.
We start by measuring the roof. About 2.2 metres from the top of the joists to the ridge is needed for a comfortable room; we check this at the first visit before anything is drawn. From there our architects design the layout and the stair, our engineers design the new floor and any steelwork, and our team builds it with the house occupied throughout.
Most lofts are permitted development within the 40 or 50 cubic metre allowance, with the dormer at the rear. Flats, listed buildings and streets with Article 4 directions need a planning application, and every loft needs building regulations approval for the structure, fire escape and insulation. We manage all of it.
- Area
- South Harrow, HA2
- Council
- London Borough of Harrow
- Housing
- 1930s semis and terraces around the station and Northolt Road, Edwardian houses on Roxeth Hill, larger inter-war houses towards Rayners Lane
- Transport
- South Harrow (Piccadilly), Rayners Lane
- Loft, on site
- 8 to 12 weeks
- Headroom needed
- About 2.2 m at the ridge
- Consent
- Often permitted development for lofts
South Harrow: the houses and the planning rules.
South Harrow sits below Harrow on the Hill, with the Piccadilly line station at its centre and streets of 1930s semis and terraces running out towards Rayners Lane and Northolt. The older houses climb Roxeth Hill towards the school, and the plots on the flatter streets are generous.
We have built extensions and lofts in Rayners Lane and the surrounding roads for years. The pattern is a rear extension across the full width of the house, a hip-to-gable loft, and often a refurbishment of the kitchen and bathrooms in the same programme.
The Roxeth Hill conservation area covers the slope up to Harrow on the Hill; most other streets are unrestricted.
London Borough of Harrow
Harrow decides applications. Outside the Roxeth Hill conservation area, most single-storey extensions and lofts are permitted development.
Roxeth Hill
Within the conservation area, front alterations and roof changes visible from the street need a full application.
Party walls
Semi-detached and terraced houses share walls with neighbours; party wall notices are served before structural work.
Approvals for loft conversions in South Harrow.
Most loft conversions are permitted development within the 40 cubic metre allowance for a terrace or 50 for other houses, with the dormer at the rear. Conservation areas, flats and front dormers need a planning application, and every loft needs building regulations approval.
Harrow decides applications. Outside the Roxeth Hill conservation area, most single-storey extensions and lofts are permitted development.
What loft conversions in South Harrow includes.
- Structural design and calculations
- Planning or lawful development certificate
- New staircase, dormer and roof windows
- Insulation, fire safety and building control
- En-suite designed and fitted
- Waterproofing with guarantee for basements
From site visit to handover.
- 01
Site visit & consultation
We visit, listen and measure. Brief, budget and constraints understood before any advice is given.
- 02
Design & itemised quote
Our architects and engineers draw the scheme, and from that we provide a transparent, itemised quotation for your approval.
- 03
Planning & approvals
Planning applications, building control and party wall matters handled for you.
- 04
Build, managed weekly
Our own trades, sequenced by a site manager. Progress reported every week.
- 05
Handover & aftercare
Joint snagging walk-through, documentation, and a guarantee on our workmanship.
Loft Conversions in South Harrow: your questions.
Is a loft conversion in South Harrow permitted development?
Often, provided the added volume is within 40 cubic metres for a terrace or 50 for other houses and the dormer is at the rear. Flats, listed buildings and streets with Article 4 directions need an application to the London Borough of Harrow.
How much headroom do I need for a loft conversion?
About 2.2 metres from the top of the ceiling joists to the ridge. Victorian and Edwardian roofs usually have it; 1930s hipped roofs often need a hip-to-gable conversion to make the space usable. We measure at the first visit.
Which parts of South Harrow do you cover?
All of South Harrow and HA2, including Northolt Road, Roxeth Hill, Shaftesbury Avenue, Eastcote Lane, Alexandra Avenue, Walton 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 South Harrow.
Other services in South Harrow.
House Refurbishment in South Harrow
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Flat Refurbishment in South Harrow
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House Extensions in South Harrow
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Structural Alterations in South Harrow
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Basement Conversions in South Harrow
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Kitchen Renovation in South Harrow
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Bathroom Renovation in South Harrow
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Bespoke Joinery & Fitted Furniture in South Harrow
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Architectural & Interior Design in South Harrow
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Planning Permission & Building Regulations in South Harrow
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We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.