Every loft type across every Brent roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, building regulations, structural calculations and party wall notices, all fixed price.
Every loft type across every Brent roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, building regulations, structural calculations and party wall notices, all fixed price.
Housing stock in Brent: Edwardian villas in Queen's Park and Mapesbury; Victorian terraces in Kilburn and Harlesden; 1930s semi-detached in Wembley; post-war tower blocks in Church End.
Character: Highly diverse borough; Queen's Park and Mapesbury are heritage-controlled; Wembley is a major regeneration hub.
Article 4: Article 4 for HMO conversions in specific streets around Wembley and Harlesden.
We confirm before quoting whether your Brent loft has the head height and structural capacity.
Most Brent loft conversions qualify for a Lawful Development Certificate. We check Article 4 and conservation constraints first.
Option studies including massing, internal layout and roof geometry.
Staircase Part K compliance, Part B fire escape, Part L insulation, Part E acoustic separation.
Ridge beam, purlins, steelwork, floor joist upgrade, dormer framing — chartered engineer sign-off.
Almost every Brent loft triggers Party Wall notices. We draft notices and coordinate with surveyors.
Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Direct answers to the questions Brent homeowners ask every week about loft conversion drawings.
Start a free quote →It depends on your exact address in Brent. Most standard loft conversions qualify as Permitted Development (no planning permission needed) if under 40m³ for terraced or 50m³ for semi-detached, with matching materials and 20cm eaves setback. However Brent has Article 4 Directions that may remove these rights — and flats, conservation areas and listed buildings always require full planning. We confirm permitted development eligibility at the free feasibility visit.
Our architectural technology fees for a Brent loft conversion start at £1,225 (planning + building regs + structural). Typical construction build-cost in Brent is £45,000–£80,000 for a standard dormer and £65,000–£110,000 for a mansard.
Mansards in Brent are less common historically — Brent Council considers each application on its merits. Rear mansards on suitable terraced or semi-detached properties, matching the roofscape, have a reasonable approval rate with the right design and supporting heritage commentary where relevant.
2.3m measured from existing ceiling joist to existing ridge is the practical minimum for a standard conversion in Brent. Below 2.2m usually requires dropping the ceiling below (reducing rooms on the floor beneath) or redesigning as a mansard.
Most Brent loft conversions trigger Party Wall Act notices — legal notices to all adjoining owners. Rear dormers can also prompt right-to-light considerations in dense terraced streets, particularly in Queen's Park. We handle both processes.
Brent's edwardian villas in Queen's Park and Mapesbury stock lends itself to rear dormers (most common), hip-to-gable (semi-detached), and mansard (period terraces and conservation contexts). Velux-only conversions are possible where ridge height allows. We recommend the best structural and planning route at survey.
We cover all Brent postcodes — {postcodes} — with surveyors based locally. Survey appointments within 3 working days. Our structural engineer is London-based and attends site when required.
Most Brent loft conversions require Party Wall notices to adjoining neighbours — typically for steel beam installation and/or raising the party wall. We can co-ordinate the notice process; our in-house engineer handles the structural element. The Act gives neighbours 14 days to respond.
We cover every London borough with the same fixed-fee approach. If your property sits on a boundary, here are the neighbouring options.
We cover every architectural technology service in Brent with one chartered team.
From £840. A fixed-fee, end-to-end service — measured survey, scaled drawings, Design & Access Statement where required, Planning P...
From £840. A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L ther...
From £1,225. The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with ...
From £1,575. Brent's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that g...
From £995. Turn your unused Brent garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full bu...
From £1,950. Full architectural technology service for basement digs and cellar conversions in Brent — structural underpinning design...
From £350. Chartered structural engineer calculations for every residential intervention in Brent — steel beams, lintels, pad found...
From £540. Fixed-fee measured surveys across Brent from £540 — floor plans, elevations and sections to ±3mm accuracy. Leica Disto l...
From £450. End-to-end Party Wall Act 1996 service for Brent — Section 1, 3 and 6 notices, schedule of condition surveys, party wall...
From £1,225. London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your ...
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Free quote in 60 seconds. Fixed fee from £1,225. MCIAT chartered.
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