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Builders in Cobham, Surrey

Designed withpurpose.Finished withprecision.

A family-run construction company working across Surrey, Hampshire and London. Extensions, loft conversions, kitchens, bathrooms and full refurbishments, with a dedicated project manager overseeing every build.

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The rear of a Surrey family home with a new brick extension, black-framed glazing and a large porcelain terrace
Cobham: the finished extension and terrace
  • Extensions
  • Loft conversions
  • Refurbishments
  • Kitchens
  • Bathrooms
  • Hard landscaping
  • Commercial

About Selwood Projects

A family-run builder in Surrey, with skilled tradespeople who have worked alongside us for years and a dedicated project manager overseeing every build. Most of our work comes back to us through recommendation.

  • Project managed

    Every build has a dedicated project manager overseeing it from start to handover.

  • Homes and businesses

    From a single bathroom to a rear extension with landscaping, and commercial refurbishments too.

  • Surrey, Hampshire and London

    Based in Cobham, and happy to talk about projects across all three.

Blockwork and an excavator in the garden of a house in Cobham while the new extension is built
The stage few people see: groundworks and blockwork for the Cobham extension

Recent work

A few recent jobs, from first dig to final coat.

Every photograph on this page is from one of our own sites. There is more on Instagram.

A bright open-plan kitchen with a long island, looking out to the garden through glazed doors
The new kitchen, looking out to the garden

01Cobham, Surrey

A rear extension that opens onto the garden.

A single-storey extension for clients who had trusted us before, taken from excavation through to a finished terrace. Steelwork, underfloor heating and a rooflight, brickwork matched to the original house, then a new kitchen, a utility room and a terrace that runs out into the garden.

The build
Excavation, foundations, structural steel, wet underfloor heating, rooflight, matched brickwork, replacement glazing
Finishes
Aluminium glazing, large-format porcelain flooring, over 150m² of patio
The kitchen
Bespoke cabinetry by Handmade Kitchens of Christchurch, quartz worktops, Miele appliances
A sage green kitchen with a central island and glass-fronted wall cabinets
The island
A built-in wine cabinet at the end of a run of painted kitchen cabinets
Wine cabinet

02Cranleigh, Surrey

A bathroom that belongs in the barn.

A bathroom inside a characterful barn conversion. Natural textures, exposed oak beams, bespoke finishes and soft lighting, so the new room sits comfortably with the old building.

The room
Bathroom within a barn conversion
The detail
Oak beams left exposed, a high-level cistern with copper pipework
A barn conversion bathroom with exposed oak beams, a rooflight, a blue tiled shower and a wash basin
Oak beams, rooflight and a tiled shower
A white high-level cistern with copper pipework against a pale wall
High-level cistern, copper pipe
A loft converted into a home cinema, with a projector screen, coloured LED lighting and bean bags
03 · Unused loft space, now a home cinema
A grey porcelain patio with a custom-sized oak pergola beside a brick wall
04 · Porcelain patio, oak pergola

From unused loft to chill-out zone.

A loft that was doing nothing, turned into a home cinema with a projector screen and colour lighting. Tell us what you would like your own loft to do and we will talk it through.

Gardens that get used.

We lift tired patios and replace them with porcelain, and build outdoor spaces to suit: garden rooms, oak pergolas, lighting. Our 80m² patio job was ready in time for summer.

05Commercial

Shops, surgeries and restaurants too.

The same standard of finish, in spaces that get used all day. A dental reception with a lit feature wall, a salon, and a restaurant restroom in Leicester Square.

A dental reception feature wall with the Lusso Dental logo and a strip of integrated lighting along the top
Lusso Dental, feature wall with integrated lighting
A dark, marble-effect restaurant restroom with a wall-hung toilet
Restaurant restroom, Leicester Square
A salon refurbishment with pink walls, panelling and a row of salon chairs
Salon refurbishment

More from our sites

The wider set.

16 photographs

What we do

What are you planning?

Pick the nearest match and see the work. If your project is not listed, ask anyway.

A bright extension living space with a rooflight and sliding glass doors
A new extension at the back of a Cobham house, brickwork matched to the original

Single-storey and rear extensions, built from the ground up.

From excavation and foundations through steelwork, brickwork matched to the existing house, glazing and finishes. Our Cobham extension came with a new kitchen, a utility room and a terrace of more than 150m².

  • Excavation and foundations
  • Structural steelwork
  • Matched brickwork and rooflights
  • Aluminium glazing
Enquire about an extension
A loft converted into a home cinema with a projector screen and coloured lighting

Unused loft space, put to work.

One recent loft became a home cinema. Tell us what you would like the room to do and we will talk through what is possible.

  • Home cinema fit-out
  • Colour LED feature lighting
Enquire about a loft
An oak-fronted kitchen with under-cabinet lighting
A painted kitchen with a long island, seen from the far end

Kitchens that suit the way you live.

We fit kitchens as part of an extension or on their own. Recent work ranges from bespoke cabinetry with quartz worktops to a bright, modern oak-fronted renovation.

  • Bespoke cabinetry
  • Quartz worktops and splashbacks
  • Large-format porcelain flooring
  • Under-cabinet lighting
Enquire about a kitchen
A bathroom with herringbone teal shower tiling
A fluted double vanity with an LED mirror

Bathrooms taken back to the walls and rebuilt.

Old suites out, new ones in, tanked and tiled properly. A customer told us they were offered plenty of advice on products and sizes before anything was ordered.

  • Tanking and large-format tiling
  • Feature herringbone and LED lighting
  • Bespoke vanities and mirrors
Enquire about a bathroom
A refurbished living room with a wood floor and bay window
A hallway with a herringbone floor and a restored staircase

Whole-house refurbishments, room by room.

From taking out an internal wall for a more open layout to bringing an empty house back to life. Flooring, decorating, restored staircases and the rest.

  • Opening up internal walls
  • Herringbone and LVT flooring
  • Staircase restoration
  • Decorating and finishing
Enquire about a refurbishment
A bespoke media wall with LED-lit shelves
A built-in desk and storage

Joinery made to fit, then painted properly.

Media walls, desks and storage designed around the room, with integrated lighting and a clean paint finish.

  • Media walls with LED lighting
  • Desks and built-in storage
  • A sliding dog gate that disappears behind a media wall
Enquire about joinery
A grey porcelain patio with an oak pergola

Patios, pergolas and garden rooms.

We lift worn patios and relay them in porcelain, and build outdoor spaces to suit the garden. One customer wrote that their 80m² patio was finished to a very high standard, with the team on site every day.

  • Grey and large-format porcelain paving
  • Custom-sized oak pergolas
  • Garden rooms
  • Exterior lighting
Enquire about your garden
A refurbished salon with pink walls and panelling
A dental reception feature wall with integrated lighting

Shops, surgeries and restaurants.

We have refurbished a dental reception, a salon and a restaurant restroom in Leicester Square. Bespoke panels, lighting and finishes chosen to cope with daily use.

  • Feature walls with integrated lighting
  • Waterproof wall panelling
  • Microcement finishes
Enquire about a commercial job

Where we work

Surrey, Hampshire and London. Based in Cobham.

Not sure you are in range? Ask

What customers say

They turned up when they said they would.

Words from Checkatrade and Google reviews, as written. Shortened where marked.

9.9/10 Checkatrade10 reviews 5.0/5 Google4 reviews

Quality of work9.9

Reliability9.9

Communication9.9

Checkatrade scores from all 10 reviews. On Checkatrade since December 2025, with up to 12 vetting checks passed and a £1,000 guarantee (T&Cs apply).

I am so pleased that we used Selwood Projects for our renovation and extension work. The job was done to a fantastic quality and nothing was a hassle for Reuben and his team. Reuben was extremely responsive and made sensible suggestions as to what would work better (and he was spot on).
Caroline R.GoogleRenovation and extension
They arrived when they said they would, kept everything moving to schedule and took real pride in the quality of their work. It’s refreshing to have a team that is not only reliable and professional, but also genuinely takes pride in what they do.
Extension, KT18Checkatrade10/10 · August 2026
The team were punctual, hardworking, and on site every day, with the work completed to a very high standard. The whole process was smooth and professional from start to finish. We’ve already recommended Selwood Projects to friends and family.
80m² patio, SL1Checkatrade10/10 · June 2026 · also on Google
Professional, reliable, and highly skilled throughout, with excellent communication from start to finish. The quality of workmanship is superb, nothing was too much trouble, and the project was completed on time and within budget.
Ged S.GoogleGarden room
I was offered lots of advice regarding the best products to go for and the sizes required. The care and attention taken really shows in the final result and I am thoroughly enjoying my new space.
Bathroom, SM7Checkatrade10/10 · May 2026
“Super pleased with the work and will use them again in the future.”Jodie H. · Google · Bathroom, Banstead
“Very polite and did a great job. Finished in great time.”Checkatrade · Pointing, GU33 · 10/10
“Excellent service, reliable and conscientious.”Harry P. · Checkatrade · Kitchen, RH14 · 9/10

Start a project

Tell us what you are planning.

A few lines are plenty. Say what you have in mind and where, and we will get back to you to talk it through.

Telephone
01420 579 065
Based at
The Long Barn, Cobham Park Road, Downside, Cobham, Surrey KT11 3NE
Covering
Surrey, Hampshire and London

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