Completed project · Loft conversion and extension · N4

Loft Conversion and Rear Extension on Corbyn Street, N4

A Victorian terrace extended up and out. A loft conversion adds a bright new bedroom under roof lights, and a rear extension opens the ground floor into a kitchen and dining room with a marble effect island and a roof light over the table. Planned, built and finished by one London team.

★★★★★  5.0 on GoogleFully insuredOne team, start to finish

Open plan kitchen extension with marble effect island, dining table and panelled walls, Corbyn Street N4 Corbyn Street · N4 · Completed
Location
Corbyn Street, London N4
Project
Loft conversion and rear extension
Key features
Loft bedroom, roof lights, kitchen extension with island
Delivered by
London’s Prestige, strip out to handover

The approach

More space at both ends of the house

Adding space at the top and the back of a terrace changes how the whole house works. In the loft, a new staircase rises to a bedroom with roof windows and dormer windows, so the room is filled with daylight.

On the ground floor, the extension creates one open kitchen and dining room. A marble effect island anchors the kitchen, panelled walls add detail, and a roof light over the dining table pulls light deep into the room. An internal window links the new space to the rest of the house.

A loft bedroom full of light

Roof windows and dormer windows over a calm, simple room.

An open kitchen and dining room

A marble effect island and a roof light over the table.

A new staircase to the top

Built to the approved design, with roof lights over the stairwell.

Project photographs

The finished loft and extension

Photographed on completion. Every image on this page is of this Corbyn Street project, completed by our own team.

What we built

The loft, the extension and the finishes

Loft conversionNew top floor bedroomRoof windows and dormer windows for light and headroom.
StaircaseNew staircase to the loftBuilt to the approved design, with roof lights over the stairwell.
Rear extensionOpen kitchen and dining roomA roof light over the dining table and an internal window to the house.
KitchenMarble effect island and worktopsHandleless units and an undermounted sink in the island.
WallsPanelled walls in the extensionSimple panelling for detail and a calm backdrop.
BathroomMarble effect porcelain, double vanityWalk in shower screen, round mirror and wall lights.
FloorsLight oak effect flooringOne floor through the kitchen and dining space.

Scope of works

Everything handled by one team

No separate plumber, electrician and tiler to coordinate. We managed every trade and every stage of this loft conversion, in the right order.

  • Protection & access

    The house protected and a safe access route set up, often with scaffolding outside.

  • Structure

    Steel beams, new floor joists and the roof structure formed to the engineer’s design.

  • Roof, dormer & windows

    Dormer or roof extension built, weathertight, with roof windows or glazing fitted.

  • Insulation & first fix

    Insulated to Building Regulations, with plumbing and electrics run for the new rooms.

  • Staircase & fire safety

    New staircase installed and fire safety measures completed to the approved design.

  • Finishes & sign off

    Plastering, joinery, bathrooms and decoration completed, then signed off by Building Control.

How we manage a loft conversion

Clear from the first visit to the final check

Homeowners worry most about the structure, the approvals and living in the house while the work goes on. This is how we run a loft conversion.

  1. Site visit

    We see the property, check access, structure and services, and talk through what you want the space to do.

  2. Written proposal

    A clear, itemised quotation. What is included, what is not, and who is responsible for what, agreed before we start.

  3. Planning & approvals

    Drawings, approvals, materials and lead times confirmed, so the build runs in the right order.

  4. The build

    Carried out in sequence by our own team, with each stage checked before the next one starts.

  5. Updates you can follow

    One point of contact throughout. You know what is happening this week and when we need a decision from you.

  6. Snagging & handover

    We walk the finished project with you and resolve any points before we sign it off.

Client reviews

What London homeowners say about working with us

★★★★★ 5.0 rating on Google

★★★★★
“What I appreciate most is their reliability, clear communication, and the professional way every project is managed from start to finish.”
Betim Dushaj · Google review
★★★★★
“Elton’s passion for the craft coupled with brilliant customer service is why I recommend Elton and London Prestige to anyone looking to complete building works.”
Ganesh Thangavel · Google review
★★★★★
“The team was professional throughout and responded to our questions promptly and clearly.”
TJ O’Sullivan · Google review

Planning a loft or extension anywhere in London?

Want your home extended to this standard?

Send us your postcode and a few photos of the existing loft. We will call you back, talk through what you have in mind and arrange a site visit if it is the right fit.

  • Loft conversions and extensions across London
  • Itemised written quotation before any work starts
  • One point of contact from site visit to handover
  • Working with your architect or interior designer where one is involved

FAQs

Loft conversions and extensions: your questions answered

Can’t see your question? Call 020 3576 7307 or message us on WhatsApp.

How much does a loft conversion and extension cost in London?

It depends on the type of loft conversion, the size of the extension, the structure of the house, the approvals needed and the finishes inside.

After a site visit we give you an itemised written quotation, so you can see what each part of the project costs before anything is agreed.

Can we do the loft and the extension at the same time?

Yes, and it often makes sense. One programme, one set of scaffolding and one team means less time with the house disrupted overall.

Do I need planning permission for a loft conversion?

Many loft conversions fall under permitted development, but it depends on the house, the design and the area. Your architect confirms the route, and we build to the approved drawings and Building Regulations.

Do you manage the whole project, or do I need separate trades?

We manage the whole conversion: structure, roof, windows, insulation, plumbing, electrics, staircase, plastering, joinery, bathroom and decoration. You deal with one team and one point of contact.

How long will the project take?

It depends on the type of conversion, the approvals needed and the finishes inside. We confirm a realistic programme after the site visit.

Can we live at home while the work is carried out?

Often, yes, depending on the scope. We plan the programme so you know when water, power or access will be affected, protect the rest of the home and keep the site tidy. For the largest projects we discuss at the site visit whether moving out for part of the build makes sense.

Do you deal with planning permission and Building Regulations?

We work with your architect on the drawings and approvals, and arrange Building Control inspections at the right stages of the build, so the work is signed off properly at the end. Party wall matters are handled through a party wall surveyor where needed.

Which areas do you cover?

We are based in West Hampstead and build loft conversions and extensions across London. Send us your postcode to confirm.

Start with a site visit

Tell us your postcode and what you have in mind. We will come and see the loft, then give you a clear written quotation.