Loft conversions in Hammersmith

The two-storey Brackenbury cottages often have marginal ridge height, and it is worth measuring before getting excited — several streets there simply do not have the 2.2m needed. Where they do, a rear dormer works well. The Ravenscourt Park villas convert easily and are the better candidates. Mansion block lofts are usually communal roof space owned by the freeholder and are not normally available to a leaseholder at all.

The properties we see in Hammersmith

Brackenbury Village is 1870s–1880s two-storey artisan cottages, small, solid-walled and with minimal floor void, which makes every services run a chase and every extension a tight site. Around Ravenscourt Park the houses are substantially larger Victorian villas, many subdivided into flats. The mansion blocks along the riverside and around Barons Court are 1900s–1930s, with shared risers, communal roofs and — critically — leases that govern what a leaseholder may alter.

Planning in Hammersmith & Fulham

Hammersmith and Fulham is our home authority, so the process and the officers are familiar. Brackenbury Village and parts of Ravenscourt Park are conservation areas. The distinctive constraint here is leasehold: mansion block alterations need landlord's consent under the lease as well as any statutory permission, and a licence to alter is a separate legal process that runs alongside planning and building control. We flag that at the outset because it is the thing that most often delays a flat project.

What loft conversions involves

A rear dormer loft conversion in Fulham costs £55,000–£85,000 and takes 10–14 weeks, adding a double bedroom and en-suite. You need at least 2.2m from the top of the ceiling joists to the underside of the ridge for it to work — measure that before doing anything else.

Consider this if

You need a fourth bedroom without moving house
The loft is full of boxes and has a decent ridge height
You want a principal suite away from the children's rooms
Neighbours on the street have already converted theirs
You want to add value before selling
Working from home needs a room with a door

What's included

Headroom and structural feasibility checked before you commit
Steel beams and floor structure designed by a structural engineer
Staircase designed to Building Regulations, including fire escape route
Dormer or mansard construction, insulation and roof finishes
Full en-suite with pumped drainage where needed
Fire doors, mains-linked alarms and building control sign-off

The standard we build to

Built to Building Regulations Parts A, B (fire), K (stairs) and L, including the protected escape route and 30-minute fire separation a loft conversion legally requires.

For the full write-up on loft conversions — costs, timescales, certification and the questions people ask most — see our loft conversions page. The prices and standards are the same wherever we work.

At a glance

Guide range	£55,000
Typical duration	10–14 weeks
Planning	London Borough of Hammersmith and Fulham

Guide ranges for budgeting, excluding VAT and professional fees. We quote a fixed price after a site visit.

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