Building spaces that revive the places they touch
modular, regenerative infrastructures that restore nature, wellbeing and personal connection in the place you live
We don’t just build...
we help you create living spaces
Systems that;
Use less energy & less resources
Deliver quality & efficiency
Restore nature & ecosystems
CUSTOMBUILT our evolution
For 21 years, Custombuilt has delivered high‑quality building work across Sheffield. Starting with Traditional work upto 2011 then Modular building.
Now we’re developing a new direction dedicated to creating Living Built Systems: infrastructure that behaves like a living system, restoring biodiversity and improving wellbeing.
We deliver the same trusted service with a new regenerative approach to give more than it takes.
Ecological Performance We design and build systems that support biodiversity, water cycles, and microclimates.
Low‑Resource Construction We minimise waste, materials, and disruption — building smarter, lighter, and cleaner.
Human Wellbeing We create spaces that feel alive, calming, and connected to nature.
The Problem with traditional Construction...
For decades, building has meant clearing, cutting, and consuming, but what if every structure became a seed of restoration?
The Solution
Buildings, homes, work hubs, and community spaces can heal the space they are built on.
URBAN BUILDINGS
HOME
EXTENSION
Maximize your homes potential
Add new rooms going upwards or out
Enjoy living with comfort and space
GARDEN
STUDIO
Combine durability with elegance
Spacious office or gym studio
Fully insulated year round retreat
NEW BUILD
HOME
Create your beautiful forever home
From a timeless building design through to completion we will be with you
Testimonials
"All the work ran smoothly. Excellent communication, very reliable. Highly recommend this company, Thank you again!"
Camilla Davenport Single storey Extension, Sheffield
"II am so pleased, delighted in fact, with the result. I would not hesitate to recommend. Sometimes dreams do come true. Many thanks "
Wendy Schofield, Single Storey extension, Chesterfield
" Would highly recommend , had complete trust and we have a beautiful home as a result. Thank you"
Miranda Murray, Remodel & double storey Extensions, Sheffield 10
Do more with less
Custombuilt home extensions offer an advanced approach to expanding your living space.
Engineered solutions
- Efficient Installation: we embrace modular systems to minimize disruption to your home life
- Resource efficient by a simplified process, that is on a personalized scale without large scale set-up costs
- Sustainability Benefits materials and designs that promote energy use & reduce resource consumption
Great design flexibility to acheive the look you want
Why choose us
Designed to enhance your home
Individually built with Craftsmanship
Experienced Project Management
See some of our past projects with 60+ posts here
Questions you might have
Q. How does we construct home extensions differently to traditional extensions
A. Our prefabricated frames replace traditional blockwork wall for your extension. Made away from your home in offsite workshops using insulated panels. This system is usually reserved for large scale developers.
Q. Why use modular building for your domestic extension
A Less disruption, more quality consistency, better thermal performance, thinner walls, more design flexibility, less delays
Q. Why change from traditional building to modular home extensions
A. For over 10years we built traditional buildings, During a 3 year advanced construction program became involved in modular construction, where the benefits were clear to see.. Ever since we've developed & integrated these techniques to our individual residential projects.
Q. Are modular extensions accepted by mortgage companies and building surveyors.
A. Yes. Advances in modular techniques over recent years mean that financial institutions , surveyors & valuers now embrace and encourage modern and modular methods of construction.
Q. How will a prebuilt extension add value to my property.
A. Additional living space when combined with a robust specification and thoughtful design, will enhance your property's appearance and value.
Q. Will a new extension improve my home.
A. Well planned additional space can transform your living experience. Our extensions can also massively increase the thermal performance of your home reducing heat loss and heating costs.
Read what our past customers say about Custombuilt
About us
We Build Bespoke Modular Buildings
Sheffield & surrounding areas
Written Quotes & Schedules
Design and build service
Our Expertise
Industry Experienced Tradesmen
Trained & Approved Installers
CIOB Project management
Health & Safety Compliant
20 years Construction Industry trading
Fully Insured Company