Turn unused roof space into a beautiful bedroom, bathroom or home office. Dormer, hip-to-gable, mansard — we assess your roof, advise on the best option, and manage the entire build from planning to handover.
The right type depends on your roof structure, head height, and what you want to use the space for. We’ll assess your loft for free and give you an honest recommendation.
The most popular type in North London. A box-shaped structure extends vertically from the roof slope, creating a full-height room with vertical walls and a flat or pitched roof. Maximises usable floor space and head height. Usually falls under Permitted Development.
Common on semi-detached and detached properties with a hipped (sloping) end roof. The sloping hip is replaced with a vertical gable wall, dramatically increasing loft volume. Often combined with a rear dormer for maximum space.
The most substantial conversion type — the entire rear roof slope is replaced with a near-vertical wall at roughly 72 degrees. Creates the maximum possible loft space and a premium finish. Usually requires planning permission but adds significant value.
The most cost-effective option — the existing roof structure is retained and roof windows are installed. No external alteration to the roofline. Ideal where there is already sufficient head height (typically 2.2m+). Almost always Permitted Development.
Most lofts in North London can be converted — but there are a few things we check on the initial survey.
You need at least 2.2m from floor joist to the ridge (highest point) for a viable conversion. Less than this and a dormer or mansard can often create the height needed. We measure this on the free survey.
Older cut-roof properties (pre-1960s) are typically easier to convert than modern trussed rafter roofs. Trussed roofs require structural alteration — completely achievable, but needs to be reflected in the price.
Building Regulations require a permanent staircase with adequate headroom. We’ll identify the best location for the stair during the design stage, minimising the impact on the floor below.
Parts of Enfield and Barnet have conservation area restrictions that limit what can be added to rooflines visible from the street. Rear dormers are usually still possible. We know these areas well.
If you share a party wall with neighbours, work on the roof structure may trigger Party Wall Act requirements. We handle notices and can recommend a surveyor if needed.
In over 26 years, we’ve very rarely found a loft that couldn’t be converted in some form. Even challenging roofs usually have a viable solution. The best way to find out is to book a free survey.
A clear, managed process so you know exactly what happens and when.
We visit, measure and assess your loft’s suitability and advise on the best conversion type.
Drawings prepared, full itemised quote issued. No vague lump sums.
Planning application (if required), structural calculations and Building Control submitted.
Build begins to programme. Weekly updates. Minimal disruption to the rest of the house.
Building Control sign-off obtained. Full snagging completed. Keys handed over.
The questions we get asked most about loft conversions in Enfield and North London.
A well-executed loft conversion typically adds 15–25% to a property’s value in North London. On a £500,000 home, that’s £75,000–£125,000 of added value — often significantly more than the build cost. The exact return depends on how the space is used and the quality of finish.
Many loft conversions fall under Permitted Development rights — particularly rear dormers and Velux conversions. You’ll usually need planning permission for mansard conversions, hip-to-gable work visible from the street, or if your property is in a conservation area. We confirm this on the survey visit.
A straightforward dormer conversion typically takes 10–14 weeks on site. A larger hip-to-gable or mansard takes 14–20 weeks. Add 6–12 weeks before construction for drawings and approvals. We’ll give you a detailed programme before any work starts.
No. Almost all loft conversions are carried out while the house is occupied. The main noise and disruption phase is during structural work at the start. We schedule the most intrusive work to minimise impact on your daily life and always give advance notice.
Loft conversions must comply with Building Regulations covering structural stability, fire safety (including a protected escape route), thermal insulation, sound insulation and staircase design. We manage Building Control approval and ensure full compliance before handover.
Yes — and most clients do. We design the en-suite into the loft layout from the outset, ensuring drainage routes and ventilation are properly planned. It’s much easier and cheaper to include it in the original build than to add it later.
We’ll come out, assess your roof and tell you exactly what’s possible — and what it’ll cost. No obligation.