01Pre construction review
Drawings, structural details and planning documents reviewed so key decisions are made early.
Loft conversion specialists across London
Rear dormer, mansard, hip to gable and roof light loft conversions for London homes. A new bedroom, en suite or home office, built to the approved design and signed off by Building Control, with one team managing every stage.
★★★★★ 30 Google reviewsFully insuredOne team, start to finish
Client reviews
Read what clients say about communication, organisation, care in the home and the quality of the finished work.
Our approach
“A loft conversion should feel like it was always part of the house. That starts with the staircase, the light and how the new floor connects below.”
A loft conversion can add a bedroom, a bathroom, a home office or a private suite without losing any of your garden. The right type depends on the roof structure, head height, the property and where the new staircase can go.
Before building starts, the design, structural calculations, planning position and Building Regulations all need to be in place. Water tanks, chimney breasts, drainage and existing services can also shape the layout.
Terraced houses often suit a rear dormer or mansard, while many semi detached homes can extend a hipped roof. Period properties need extra care with original features, party walls and conservation rules. We build to the approved information, with every stage agreed in writing.
What’s included
Everything below is managed by our own team. The exact scope, materials and responsibilities are agreed in writing before work starts.
Drawings, structural details and planning documents reviewed so key decisions are made early.
Scaffolding, deliveries, waste and protection of the rooms below planned before work starts.
The roof structure altered to create usable space, built strictly to the engineer’s design.
Beams and new floor joists installed to the approved structural calculations.
Dormers built, weathertight and finished externally to the agreed design.
Larger mansard conversions for maximum space, usually with planning permission.
Natural light and ventilation placed to suit both the roof and the room layout.
A safe, comfortable staircase positioned early, with the landing below considered too.
En suites, radiators and pipe routes planned around water pressure and drainage.
Sockets, lighting and linked smoke alarms planned around how the room will be used.
Walls and ceilings plastered and decorated, including any areas below affected by the work.
Doors, skirting, balustrades and fitted storage under the eaves, finished before handover.
Completed projects
Real projects by our team, photographed on completion. Open one to see the scope, the finishes and how the work came together.
Loft conversion and rear extension
Dormer loft and kitchen extension
Loft conversion and glazed extension
Loft, extension and full renovation
Extension and whole house renovation
L shaped extension
Who it is for
More floor area and full head height, ideal for a bedroom with an en suite.
The rear roof slope rebuilt for the most usable space, common on London terraces.
The sloping side of a hipped roof built up to a full gable, often combined with a dormer.
Works within the existing roof shape, with roof windows for light and air.
Spans the main roof and the rear addition for space for more than one room.
Send us your postcode, the type of property and a short description. We will confirm the right approach.
Ask UsCombined projects
A successful loft conversion should feel connected to the rest of the house, not like a room added on top. The staircase, landing, doors, flooring and finishes all make that connection, and well placed roof lights and dormer windows make the new rooms feel bright and open.
Many lofts are built alongside a house renovation, a first floor refurbishment or a new bathroom. Planning them together makes the plumbing, electrics, heating and decoration simpler to coordinate.
Why London’s Prestige
A good loft conversion depends on more than the finished photos. It depends on planning, clear communication and trades working in the right order.
More about London’s PrestigeEvery trade and stage run as one connected project, so you are never left managing builders.
The work, responsibilities and exclusions agreed in a written proposal first.
One point of contact who tells you what is happening and when we need a decision.
Access, parking, neighbours, party walls and building rules planned from day one.
Straight lines, tight joints and every detail snagged with you before handover.
Our process
From your first message to the final handover, this is what to expect.
Send the postcode, the type of work and any photos, plans or ideas you already have.
We see the property, check access and services, and talk through your priorities.
An itemised quotation with the scope, responsibilities and exclusions made clear.
Trades, materials, approvals and key stages organised before we start on site.
The work is completed in sequence, then reviewed together before final handover.
At an early stage with your loft conversion? Send us your postcode and a few photos of the loft and roof. We will tell you which type is likely to suit your home and what comes next.
Free quote
Share your postcode, what you have in mind and when you hope to start. Photos or drawings help, but they are not essential. We will call you back and arrange a site visit, followed by a clear written quotation.
Prefer to talk now? 020 3576 7307
Areas we serve
From our base in West Hampstead, we work right across London. Wherever your property is, send us the postcode and a short description of the work and we will be in touch.
London’s Prestige, 41A Mill Lane, London NW6 1NB · Get directions
FAQs
Can’t see your question? Call 020 3576 7307 or message us on WhatsApp.
Rear dormer, mansard, hip to gable, roof light and L shaped loft conversions, depending on the house and the approvals.
It depends on head height, the roof structure, where a staircase can go and any planning restrictions. We can look at your loft and tell you the options.
Yes. Structure, fire safety, insulation, the staircase and ventilation all need to comply, and Building Control inspects at key stages before signing off.
Many loft conversions are permitted development, but mansards, conservation areas and some designs need planning permission. Your architect confirms the route.
It depends on the type and size of the conversion, the structure, access, weather and finishes. We confirm a programme after reviewing the drawings.
Yes, where the layout, water pressure and drainage allow. We plan the en suite early so the pipe routes work.
We work across London from our base in West Hampstead, from Hampstead, Highgate and St John’s Wood to Islington, Kensington, Chiswick, Richmond and Bow. Send us your postcode and we will confirm.
Send us your postcode, the type of property, a short description of the work and a few photos, using the form, by phone or on WhatsApp. We review the details, call you back and arrange a site visit, followed by an itemised written quotation.