Residential Prefab Homes
No 12 month build. No cost overruns. No half finished house. Your home arrives fully fitted, super insulated, and ready to live in from day one. Just connect water and electric. Done.
4.9/5 from 336 reviews 01743 491181Prefer to see one first? Book a show home visit
Homes Delivered
Build Time
Saved vs Traditional
Cost Overruns. Ever.
The problem with building a home
You dream of a new home. You get quotes. The cheapest is £120,000. You sign the contract. Six months in, you have spent £148,000, the kitchen still is not fitted, and you are living with your parents while the builder makes excuses about supply chain delays. Sound familiar?
£1,800
Per sq m, traditional build
That is £144,000 for an 80 sq m home before you even factor in the inevitable overruns and extras.
44 weeks
Average build time
Nearly a full year of your life spent managing builders, chasing trades, and dealing with delays. That is 44 weeks of rent or mortgage you are paying on top.
22%
Average cost overrun
On a £120,000 build that is £26,400 you did not plan for. Gone. And nobody warns you until it is too late to turn back.
Owner reviews
Real reviews from people living in their PrefabX home, rated 4.9 out of 5.
Excellent
Based on 336 verified reviews
PrefabX Owner Reviews
“After the kids moved back home we needed extra space fast. Every cupboard, every joint and every finish has clearly been thought about. It is genuinely the warmest, most comfortable space we have ever had.”
Sean Hopkins
7 May 2026 · PrefabX Exclusive · Cardigan
“Our family had outgrown the house and a normal extension was going to take a year. The nightly rate it commands has made the numbers stack up brilliantly.”
Owen
4 May 2026 · PrefabX Grand · St Andrews
“I found PrefabX after hours of Googling and the Exclusive caught my eye straight away. Our family finally has the room we needed without moving house. The kids think it is the best thing we have ever done.”
Neil Walsh
2 May 2026 · PrefabX Exclusive · Cromer
“I will be honest, I was sceptical about prefab until the Studio turned up. It is built like a tank but finished like a boutique hotel. Friends who work in the trade could not believe it was a prefab. The only small thing was a short wait for our delivery slot, but it was well worth it in the end.”
Helen
24 Apr 2026 · PrefabX Studio · Tetbury
“I went in expecting the usual sales patter and got straight answers instead. The lead time was a few weeks, not the better part of a year. The attention to detail in the joinery and the finish really stood out.”
Martin
6 Apr 2026 · PrefabX Annexe · Ludlow
“We had looked at every prefab option in the country before we found PrefabX. The nightly rate it commands has made the numbers stack up brilliantly. It is genuinely the warmest, most comfortable space we have ever had. We could not be happier and would do it all again tomorrow.”
Adam
27 Mar 2026 · PrefabX Annexe · Ruthin
“Five stars is not enough for how happy we are with our Exclusive. It is warm, calm and quiet, exactly what we wanted from a home. The whole site was left clean and tidy when they finished.”
David K.
25 Mar 2026 · PrefabX Exclusive · Petersfield
“I will be honest, I was sceptical about prefab until the Annexe turned up. The quality is indistinguishable from a build costing three times as much. There were no hidden extras, the bathroom, electrics and plumbing were all included. If you are on the fence, go and visit the show home, it will make your mind up.”
Dewi Vaughan
20 Mar 2026 · PrefabX Annexe · Barnstaple
“We needed somewhere for my mum to live close by but still have her independence. The team answered every question, however daft, and never once rushed us. Our family finally has the room we needed without moving house. Thank you to the whole team, you have been brilliant.”
Simon and Sophie Marsh
10 Mar 2026 · PrefabX Annexe · Sevenoaks
The offer
Other builders quote low, then hit you with extras. Bathroom? Extra. Electrics? Extra. Plumbing? Extra. Not with PrefabX. Every single item below is included in your fixed price.
You pay
£25k
All inclusive. From.
Price anchor
A comparable traditional build costs £90,000 to £140,000 and takes 8 to 14 months. You get the same space, higher build quality, and you save £65,000+ and 10 months of your life.
Why it works
Every home is manufactured in a climate controlled factory using CNC precision components. Sub millimetre tolerances. 147 point quality inspection. No weather delays. No on site guesswork.
CNC cut to sub millimetre accuracy in a climate controlled factory. No weather delays. No on site bodge jobs. Every joint perfect.
147 point inspection before it leaves our facility. 2 year full warranty. 5 year structural. 10 year envelope. Backed by third party insurance.
From order to move in ready in 12 weeks. Your site prep runs parallel to manufacturing. No dead time. No delays.
85% less construction waste than traditional builds. Net zero energy ready. Built for the next 50 years, not the next 5.
An upgrade most charge extra for
Most prefab buildings, and most new build homes, ship with double glazing. Every PrefabX home comes with triple glazed aluminium framed windows and doors as standard. Quieter rooms, warmer winters and lower energy bills, built in. We also fit premium blinds to every window and door before your home leaves the factory. No upgrade fee. No catch.
Aluminium framed glazing on every window and door, never a paid upgrade.
Premium blinds on every window and door, included in your fixed price.
Three panes cut heat loss and outside noise, so running costs stay low.
Aluminium frames will not warp, rot or rust for the life of the home.
Is this for you?
PrefabX is for you if:
PrefabX is not for you if:
The Range
From a compact garden annexe to a three bedroom family home, every modular home is fully fitted and delivered finished. Explore each layout in detail.
Compact 1 bed
From £25,000
£160/mo*
Bedroom, bathroom, a kitchen area and living space, all in the most compact unit in the range, plumbed and wired ready for the kitchen of your choice. The Studio is the answer for a garden office, a guest annexe or a first home that does not compromise.
Open plan
From £28,000
£180/mo*
A single open volume with a fitted bathroom and nothing in your way. Fit it out as a studio, an office, a gym, a retail unit or a workshop. The Hub is the blank canvas in the range.
2 bedroom
From £30,000
£195/mo*
The Annexe is a complete two bedroom home with a family bathroom, finished and unfolded on your site in 2 to 3 days. Choose Layout A for a separate kitchen with an open living and dining space, or Layout B to open the kitchen and living room into one bright, social heart. The same engineered shell, your choice of how to live in it.
3 bed, 2 bath
From £50,000
£320/mo*
The Exclusive sits between the Annexe and the Grand. Three bedrooms, two bathrooms with a private ensuite to the principal bedroom, a kitchen area and a bright open living and dining space across 69 square metres. Available in PrefabX Stone, Classic and Nordic finishes. Final specification is being confirmed, so the figures here are indicative.
3 bed, 2 bath
From £55,000
£355/mo*
Two units joined into one large home. Three bedrooms, two bathrooms, a kitchen and a wide living room, with more than 80 square metres of finished space. The Grand is the whole family home in the range.
*Monthly payments estimated with deposit and financing. Calculate your payment
Lived in across the UK
The same engineered home, delivered finished and lived in across the UK. Here is how families put the modular home to work.
United Kingdom
A UK best seller for garden offices and family annexes. Minimal foundations and a fully finished interior mean no on site building work and a room you can use the same week.
Surrey and the Home Counties
A finished interior and rigorous residential standards make the modular home a cost effective, move in ready home that has earned wide trust with UK families.
Coastal and rural
Weather resistant materials and a sealed, insulated envelope make the modular home at home by the coast or off grid, comfortable to live in all year round.
The cost of waiting
Every month of delay is another month of rent. Another month of commuting to a job you could walk to from a garden office. Another month of your parents not having the annexe they need. Another month of your family crammed into a space that does not work.
A traditional self build takes 44 weeks on average. That is almost a full year of your life on hold. With PrefabX, your home is built in 12 weeks and installed in 2 to 3 days.
£1,200
Per month, in rent
Average UK rent you keep paying while a traditional build drags on month after month.
£13,200
11 months of waiting
Rent thrown away while a traditional builder takes their time and misses deadlines.
12 wk
PrefabX build time
Order to move in. Your site prep runs parallel to manufacturing. No dead time.
Zero risk
You should not have to gamble tens of thousands on a photo and a promise. So we removed every reason to hesitate.
The price we quote is the price you pay. If anything costs more than we quoted, we cover it. Not you. Written into every contract.
We give you a delivery date. We hit it. If we are late, you receive £100 credit for every day of delay. We have never paid out.
We will not ask you to buy blind. Every quote comes with the full specification, material list, and SGS test certificates, so you know exactly what you are getting before you pay a penny.
2 year full coverage on all systems. 5 year structural. 10 year envelope warranty on roofing, thermal boundary, and waterproofing. All backed by third party insurance.
The numbers speak for themselves.
PrefabX
Build Time
12 weeks
Cost Certainty
Fixed price, guaranteed
Construction Waste
85% less
Build Quality
CNC precision, factory QC
Energy Efficiency
Net zero ready standard
Price Transparency
All in pricing upfront
Warranty
2/5/10 year comprehensive
Traditional Build
Build Time
8 to 14 months
Cost Certainty
10 to 25% overruns typical
Construction Waste
30+ tonnes average
Build Quality
Weather dependent, variable
Energy Efficiency
Code minimum typical
Price Transparency
Change orders add up
Warranty
1 year builder warranty
Use our calculator to estimate your monthly payment. Our homes qualify for standard mortgage financing, personal loans, and specialist modular home finance.
Estimated Monthly Payment
£312/mo
Loan amount: £52,000 at 5.25% APR
Deposit: £13,000
Finance is available on every PrefabX building. *Estimate only. Actual rates vary by lender and credit profile.
Every PrefabX home is engineered for minimal environmental impact and maximum longevity. Sustainability is not an add on. It is foundational to how we build.
Limited production capacity
Each PrefabX home is precision manufactured in our UK factory. We do not rush. We do not cut corners. That means our production slots fill up. If you want to move in this summer, the time to start is now.
Straight answers. No hedging.
Better. Our homes are built in a climate controlled factory using CNC machined components with sub millimetre tolerances. That means tighter joints, more consistent insulation, and better structural integrity than anything built on a wet construction site. Every home passes a 147 point quality inspection before it leaves our facility.
Yes. Modern prefab homes appreciate at the same rate as comparable site built homes in the same area. Our homes are architecturally designed, permanently foundation mounted, and indistinguishable from traditional builds. They appraise as standard residential construction.
Yes. Each model is a starting point. You can modify room layouts, add or remove walls, and choose from our curated finish packages. Our team works with you to create a home that is exactly what you want, while staying within the structural parameters that ensure precision manufacturing.
It depends on your situation. Many of our buildings qualify as permitted development or temporary structures, meaning no formal planning application. For permanent residential use, planning may be required. We assess your site for free and tell you exactly what applies. No guesswork, no surprises.
The price includes: the complete building, structure, insulation, interior finishes, bathroom, electrics, plumbing, and delivery to your site. Not included: foundation work, site preparation, and utility connections. These vary by location. We give you a transparent breakdown during consultation so there are zero surprises. Most clients budget an additional 15 to 20% for site work.
Every PrefabX home comes with: 2 year full coverage warranty on all systems and finishes, 5 year structural warranty, and 10 year envelope warranty covering the thermal boundary, roofing, and waterproofing. Backed by a third party insurance provider.
PrefabX homes qualify for standard mortgage financing, personal loans, and specialist modular home finance. We work with lenders experienced in prefab home financing who can assess your options quickly. Use our financing calculator above to estimate your monthly payment.
Still have questions? Talk to our team or call 01743 491181
Ready when you are
Tell us about your plot and the layout you like. We will come back within 24 hours with a personalised consultation and an all inclusive fixed price. No obligation.
Popular at home
From a garden office to a self contained annexe, see how the range fits the job you have in mind.
Also from PrefabX
We build for businesses too. Offices, retail units, site accommodation, and more. The same fixed pricing, factory quality, and fast delivery.
Finance available on every building, from £160 a month. Spread the cost and let the bookings pay it back. See finance options
Free download
Floor plans, pricing, full specifications, and real project photos. Everything you need to start planning your build.
We will email you the brochure. No spam, ever.