Home Extension Builders in Bloomsbury
Home extension in Bloomsbury WC1, worked through listed-building and conservation-area constraints, with Buildaway managing consents and construction alike.
Your Local Home Extension
Specialists in Bloomsbury
Looking for extension specialists in Bloomsbury (WC1)? Buildaway works across WC1 -
the Georgian terraces on Bedford Square, Gordon Square and Tavistock Square, the
buildings near Russell Square and Lamb's Conduit Street, and the properties around
the British Museum, UCL and Coram's Fields.
Home extension in Bloomsbury is worked by Buildaway through listed-building and
conservation-area constraints, managing consents and construction alike. In WC1
outward extension is rarely on the table, so the work is usually lower-ground, rear
infill or internal reconfiguration - all of which need consent before they need a
builder. Buildaway establishes what is approvable, then delivers structure, services
and finish on a single Bloomsbury contract with one point of contact.
Our Home Extension Packages in Bloomsbury
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 Bloomsbury Homeowners Choose Buildaway
Discreet project management respecting high-end residences and Central London developments
Based in your area with local expertise and reputation.
Bespoke extension designs for Georgian homes, conversions, and luxury 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.
Skilled installation teams with knowledge of WC1 and surrounding areas
Meticulous craftsmanship in every aspect of your extension.
Reputation built on delivering flawless, high-end finishes with minimal disruption
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 Bloomsbury 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.
“I received an excellent service from the outset with a very high standard of the completed work. Cormac was very responsive to my wish for a traditional period bathroom and helped me to source the suite, the tiles, the paneling and flooring. The team are respectful to the home generally. I am very pleased with the finished bathroom…”
Philomena Mulcahy
“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
“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
“Greg's attention to detail and dedication elevated both the experience and the result - he certainly knows his way around a tile. In addition to the bathroom refit, Cormac replaced all the plastic switches, sockets and pull-cords in the house with brushed brass. Highly recommended and will certainly work with the Buildaway team again…”
Kane Dempsey
“The quality of the work, their high standards, and their professionalism, along with effective and proactive communication made a refreshing change from the builders I have used in the past. Even when we changed our minds and ideas during the job Cormac’s patience and support emphasised that he wanted to make sure that the finished product was exactly what we wanted…”
Michael Marks
“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
Frequently Asked Questions
Your questions about home extensions in Bloomsbury, answered.
How much does a home extension cost in Bloomsbury?
Buildaway prices Bloomsbury extensions from survey. As a working guide across WC1: £40,000–£60,000 single-storey rear, £60,000–£80,000 wrap-around, £100,000+ double-storey. Roof lanterns, bifolds and structural spans move it most. The quote is fixed in writing before we break ground.
How long does a home extension take in Bloomsbury?
A single-storey extension in Bloomsbury typically takes 12 to 14 weeks on site, with double-storey nearer 16–20. Add lead-in for planning - Camden Council runs an 8-week determination period - plus party-wall notices, which need up to 2 months in WC1 terraces. Buildaway starts the paperwork early so the build is not waiting on it.
Do I need planning permission for an extension in Bloomsbury?
Assume it may. Bloomsbury extensions frequently run into conservation-area policy or listed-building consent, and WC1 flats cannot use permitted development regardless. Buildaway resolves the Camden Council position first, because it determines what is worth drawing.
What types of extension do you offer in Bloomsbury?
Rear, side-return, wrap-around, double-storey and lower-ground - Buildaway delivers all of them in Bloomsbury. Terraces around Bedford Square and Russell Square usually point to a side-return; where outward space is limited in WC1, going down or reconfiguring inside often makes better sense. We advise from survey.
Do Buildaway handle both design and construction for Bloomsbury extensions?
Both, on one contract. For Bloomsbury clients Buildaway handles drawings, structural engineering, consents and construction. Splitting design from build is where WC1 extension projects most often lose money, because the gap between them is nobody's problem until it is yours.
Are your extension specialists local to Bloomsbury?
Yes. Buildaway works across Bloomsbury and the surrounding WC1 streets regularly, so we know the plots around Bedford Square and Russell Square, the drainage runs, and what Camden Council has approved nearby. Local precedent is genuinely useful - knowing what got consented on the next street shapes a scheme that will pass.
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We Serve Bloomsbury and Surrounding Areas
Find us in the heart of Bloomsbury. 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 Bloomsbury?
We’ve completed premium extension installations throughout Bloomsbury, including properties near Russell Square, Bedford Place, and the British Museum area.