Design and Build Services in London

Plus Rooms offers London homeowners a comprehensive design and build service. By building kitchen extensions and loft conversions of superior quality, we help clients build their dream space.

Customers gain the full benefit of our experience with a complete design and build service. As we manage the entire process from concept to completion, we can uphold excellent quality standards throughout the project.

Our team has a sterling reputation for delivering successful projects, working with customers throughout the design process to ensure that their new extension meets their every need. For this reason, 60% of new business comes referred to us by satisfied customers.

Bespoke Kitchen Extension Design Services

We structure our design process around the unique vision and functional requirements of our customers. Whether they want extra space for a growing family, or perhaps a stunning modern dining space for hosting guests, our design team will develop creative solutions that transform interiors. Customers can have peace of mind that their extension will be built with a commitment to high design standards, creative flair and exacting attention to detail.

Reliable Construction and Superb Craftsmanship

The construction process is where we get to bring our clients’ dream space to life, but it’s also where we demonstrate our years of experience in customer service and project management.

Our building contractors are highly skilled and experienced and have access to the finest building materials. They’ll ensure that projects are completed with as little disruption as possible to our clients’ home lives. This may include, for instance, creating temporary kitchen and living facilities while the extension is being built.

For a less-experienced company, a building project can be challenging when it comes to deadlines and cost management. Fortunately, we have spent years devising effective solutions to deliver projects on time, within budget, and to the highest possible standards of quality.

Planning Permission and Permitted Development

Each one of our clients will be assigned a dedicated project manager, whose job it is to orchestrate not only a successful design and build project, but also to navigate the complex world of building regulations. With an all-inclusive service, you can rest assured that our team will handle all permitted development and planning applications swiftly and effectively.

Work with an Industry-Leading Design and Build Company

Over the years we’ve worked on a vast range of extensions, with customers being able to choose from a varied collection of kitchen designs. Browse examples of previous projects so you can begin to visualise your perfect extension. If you have any questions, the Plus Rooms team is on hand to assist. Contact us today to find out more about our design and build services.

View our bespoke kitchen extensions

Ealing W13


Ealing W13 loft


Kylemore Rd

West Hampstead

Portsmouth Ave

Thames Ditton

Addison Gardens Loft

Shepherd's Bush

Albert Rd

Muswell Hill

Woodbourne Ave

Streatham Park

Archdale Rd

East Dulwich

Beauval Rd

East Dulwich

Bromar Rd


Casewick Rd

West Norwood



Dassett Rd

West Norwood

Fawnbrake Ave Loft

Herne Hill

Fellbrigg Rd 1

East Dulwich

Friern Road 2

East Dulwich

Greenhurst Rd

West Norwood

Haslemere Ave


Hastings Rd Loft


Hillcourt Rd

East Dulwich

Holmewood Rd

Tulse Hill

Leithcote Gardens


Leppoc Rd


Lime Grove


Mandrake Road


Wandsworth Bridge Rd

Richmond upon Thames

Milner Rd


Murray Rd


Nigel Rd

Rye Lane

Overhill Rd 1

East Dulwich

Pentney Rd


Reckitt Rd


Reckitt Rd Loft


Shardeloes Rd


Telegraph Lane