Home Extension Builders in Fitzrovia
Extension and structural reconfiguration in Fitzrovia W1T and W1W, worked through party-wall and access constraints, with Buildaway coordinating every stage.
Your Local Home Extension
Specialists in Fitzrovia
Searching for extension specialists in Fitzrovia (W1T, W1W)? Buildaway works across
Fitzrovia - the terraces around Charlotte Street, Goodge Street and Rathbone Place,
the buildings on Fitzroy Square, and the properties near Great Portland Street,
Warren Street and the BT Tower.
Extension and structural reconfiguration in Fitzrovia is worked by Buildaway through
party-wall and access constraints, coordinating every stage. In W1T and W1W there is
nowhere to extend to, so the space comes from within - removing structure, reworking
layouts, converting the plan rather than adding to it. Buildaway serves the notices,
engineers the openings and manages deliveries through central-London access, all on
one Fitzrovia contract.
Our Home Extension Packages in Fitzrovia
Single-Storey Rear Extension
Ideal for expanding your living space. Includes structural survey, architectural drawings, groundworks and foundations, brickwork and roofing, bi-fold or sliding doors, heating installation, building regulation approval.
Side Return Extension (Most Popular)
Complete kitchen and living area transformation. Includes structural assessment, full groundworks, steelwork if required, brickwork and matching materials, glazing and doors, full insulation, electrics upgrade, flooring, building regulation approval, waste removal.
Double-Storey Extension
For those seeking maximum space addition. Includes architectural design, full structural alterations, steelwork and foundations, bespoke staircase, multiple room creation, bathroom or en-suite option, planning and building regulation handling.
Why Fitzrovia Homeowners Choose Buildaway
Local expert teams with intricate knowledge of Fitzrovia's W1 and WC1 properties
Based in your area with local expertise and reputation.
Tailored luxury extension designs specifically for elegant Georgian townhomes, stylish flats, and prestigious apartments
We handle everything so you don't have to worry.
Transparent and honest pricing with no hidden fees or unexpected charges.
Clear upfront pricing with no surprises along the way.
Comprehensive project management ensuring minimal disruption
Meticulous craftsmanship in every aspect of your extension.
Established reputation with successful projects around Charlotte Street, Tottenham Court Road, and Fitzroy Square
Professional consultation and detailed quotes at no cost.
What's Included in Your Home Extensions Services
Everything you need for a seamless, stress-free home extension - from structure to finish.
Full groundworks and structural build
Complete groundwork preparation and structural construction services.
Plumbing, electrics, and heating integration
Professional installation of all mechanical and electrical systems.
Roofing, windows, and external finish
Complete roofing, window installation and exterior finishing.
Plastering, flooring, and decorating
Professional plastering, flooring and decorating services.
Interior fit-out and finishing
Complete interior fit-out and professional finishing touches.
Project management and schedule control
Professional project management and timeline control throughout.
Latest Home Extension Insights
We publish detailed home extension guides and cost insights for homeowners across Fitzrovia and surrounding areas, helping customers plan projects with clarity before starting work.
Home Extensions London: The Complete 2026 Guide
Everything from feasibility and planning to structure, cost and programme for a London extension.
Single-Storey Rear Extension Cost London
A realistic cost breakdown for the most common extension in London, with the variables that move it.
Planning Permission for Home Extensions
When you need permission, when permitted development covers you, and how to avoid a refusal.
What Our Clients Say
Real reviews from our satisfied customers.
“We had an excellent experience working with Buildaway. Cormac was incredibly easy to work with, and gave helpful advice. The finished job was neat, professional and completed efficiently. We'd definitely recommend and would use them again!”
Roisin Lawrence
“From scoping to completion, Cormac was always very responsive, answering any questions we had on product selection and helped us source the products to get the best price. His team worked extremely hard and a big shoutout to Greg for his attention to detail! We couldn’t be happier with the results and would highly recommend Buildaway for any building project in the future…”
Georgina Ehmcke
“It was an absolute pleasure working with Cormac and the Buildaway team. Greg is an absolute star. Cormac’s communication and advice was excellent, and the organisation and sourcing of additional materials was brilliant. A truly great team, I would thoroughly recommend Buildaway if you are after a stress free and top quality renovation.”
Sim Lewis
“From my first contact with Cormac, I was in good hands. His team turned my vision into reality, communicating with me every step of the way and offered helpful suggestions which turned my bathroom into an oasis. I could not be happier and would highly recommend their services. Thank you to the team of Buildaway Construction Ltd…”
Jackie Brown
“I am extremely impressed, happy and proud of what he and his team of Archie, Ben and Danny delivered. They all went beyond and far, I am very grateful for what they have done for me. I would 100% recommend Buildaway for any building, renovation etc - an excellent team with a good rapport, team spirit and working harmoniously together. Thank you Team Buildaway…”
Betty Lwanga
“The team turned up when they said they would and kept the house tidy each day, which made a big difference while we were living in the property during the works. The quality of the finish is excellent. The bathroom looks fantastic and the bedrooms feel completely refreshed. We wouldn’t hesitate to recommend Cormac and the Buildaway team…”
Helen Sivyer
Frequently Asked Questions
Your questions about home extensions in Fitzrovia, answered.
How much does a home extension cost in Fitzrovia?
Extension costs in Fitzrovia are driven by groundwork, structure and glazing more than floor area alone. Across W1T and W1W, expect about £40,000–£60,000 for a single-storey rear, £60,000–£80,000 for wrap-around, £100,000+ for double-storey. Buildaway itemises groundwork, steels, services and finishes separately so the trade-offs are visible.
How long does a home extension take in Fitzrovia?
Twelve to twenty weeks on site for Fitzrovia, scheme depending. The build is the predictable part; Camden Council determination and party-wall awards are what stretch W1T and W1W projects. Buildaway handles both alongside design so the dates hold.
Do I need planning permission for an extension in Fitzrovia?
It depends on your W1T and W1W property. Permitted development covers a good number of Fitzrovia rear extensions, but if you are listed, in a conservation area, or leasehold, the answer changes and Camden Council consent is needed. Buildaway confirms what is achievable at feasibility rather than designing something that gets refused.
What types of extension do you offer in Fitzrovia?
Buildaway builds rear, side-return, wrap-around, double-storey and lower-ground extensions across Fitzrovia. Which suits your W1T and W1W home depends on the plot, the boundary and what Camden Council will accept. Around Charlotte Street and Fitzroy Square the side-return infill is often the highest-value option. Buildaway surveys before recommending.
Do Buildaway handle both design and construction for Fitzrovia extensions?
We do the whole thing. Buildaway surveys your Fitzrovia property, designs a scheme that is genuinely consentable, secures approval from Camden Council, and builds it with our own team - one point of contact from feasibility around Charlotte Street and Fitzroy Square to sign-off.
Are your extension specialists local to Fitzrovia?
Buildaway covers Fitzrovia and the wider W1T and W1W area year-round. Having extended this housing stock around Charlotte Street and Fitzroy Square repeatedly, we know its constraints before the survey - and we are nearby well after handover.
Get Your Free Quote
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We Serve Fitzrovia and Surrounding Areas
Find us in the heart of Fitzrovia. We are proud to serve our local community.
Nearby Areas We Serve
Below are some of the local areas where you can find Buildaway transforming homes.
Ready to Transform Your Extension in Fitzrovia?
From sophisticated contemporary wet rooms to luxurious traditional extensions, Buildaway delivers flawless, bespoke installations to elevate every home in Fitzrovia.