GS Renovation carries out loft conversions in Highgate, in the period houses along the ridge above Hampstead Heath. N6 is heavily constrained: much of it lies within conservation areas and a good number of properties are listed, so what Camden Council will accept is the first question, not the last. We build to the approved design.
What is realistic on a Highgate roof
In Highgate the roofscape is part of what the conservation area designation exists to protect, so a large rear dormer that would pass without comment elsewhere in London can be refused here. Conservation officers look at whether the addition is visible from the street or from the Heath, whether it respects the ridge line and how it reads within the group of houses. Rooflight conversions, using conservation-style flush units on the less visible slopes, are often the scheme that gets consent.
Where more volume is genuinely needed and the property is not listed, a carefully proportioned mansard or a modest rear dormer set well below the ridge is sometimes achievable. If the house is listed, listed building consent is required as well as planning, and internal alterations such as cutting a new stair through the floors are themselves controlled. GS Renovation does not design these schemes; we coordinate the architect and heritage consultant and build precisely to their drawings.
Building regulations do not relax for a period house
Whatever the planning outcome, the regulations are the same. A third storey normally requires a protected stairwell running to a final exit, fire doors to habitable rooms off that stair and interlinked alarms on every level. The new floor is formed on engineer-sized joists carried by steel beams on padstones, kept clear of the original ceiling joists, and the stair must satisfy Part K on rise, going and headroom even where the existing house has a much older, steeper flight.
Insulation and ventilation to Part L take particular care in an old Highgate roof, because a poorly detailed warm roof build-up traps moisture in historic timbers. Party wall notice applies where the house is terraced or semi-detached and the steels bear into the shared wall, and the duty to serve rests with you as building owner. We supply the technical information and sequence our work to the agreed method statement.
- Staircase design to Part K, including the landing below
- Rooflight conversions where the roof line must not change
- Water tank removal and conversion to a sealed system
- Trussed roofs redesigned before any web is cut
- Dormer cheeks, flat roof and leadwork detailed to last
The GS Renovation Difference in Highgate
Highgate owners come to GS Renovation because the constraint here is heritage, and the answer is careful coordination rather than a standard product. We work alongside your architect, heritage consultant and structural engineer, build exactly to consent, and manage Camden building control through to certificate. A fully insured contractor with a dedicated project manager and a founder of 30+ years experience.
- Photographs kept at each stage for your records
- A written scope and programme agreed before work starts
- Free follow-up visit after completion if anything needs attention
- New floor structure carried on steel, never on the old ceiling joists
- One point of contact on the phone, not a call centre
- Interlinked mains alarms fitted and certified