Modern prefab residential home with large windows surrounded by greenery

Residential Prefab Homes

A brand new, fully finished home for less than most people spend on a kitchen renovation.

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 491181

Prefer to see one first? Book a show home visit

350+

Homes Delivered

12 wk

Build Time

£75k+

Saved vs Traditional

£0

Cost Overruns. Ever.

The problem with building a home

The average UK self build costs £1,800 per square metre, takes 44 weeks, and goes 22% over budget.

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

Loved by families across the UK.

Real reviews from people living in their PrefabX home, rated 4.9 out of 5.

4.9

Excellent

Based on 336 verified reviews

PrefabX Owner Reviews

Independently verified
Verified
“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.”
SH

Sean Hopkins

7 May 2026 · PrefabX Exclusive · Cardigan

Verified
“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.”
O

Owen

4 May 2026 · PrefabX Grand · St Andrews

Verified
“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.”
NW

Neil Walsh

2 May 2026 · PrefabX Exclusive · Cromer

Verified
“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.”
H

Helen

24 Apr 2026 · PrefabX Studio · Tetbury

Verified
“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.”
M

Martin

6 Apr 2026 · PrefabX Annexe · Ludlow

Verified
“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.”
A

Adam

27 Mar 2026 · PrefabX Annexe · Ruthin

Verified
“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.”
DK

David K.

25 Mar 2026 · PrefabX Exclusive · Petersfield

Verified
“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.”
DV

Dewi Vaughan

20 Mar 2026 · PrefabX Annexe · Barnstaple

Verified
“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.”
SM

Simon and Sophie Marsh

10 Mar 2026 · PrefabX Annexe · Sevenoaks

The offer

Here is everything you get.
For a fraction of what it should cost.

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.

  • Engineered steel shell and structure, 50 year lifespan £18,000
  • Super insulated walls, roof and triple glazed aluminium windows and doors £9,500
  • Premium blinds fitted to every window and door, included free £1,500
  • Complete fitted bathroom, plumbed and wired ready for a kitchen £6,000
  • Full electrics, plumbing and heating, installed £7,000
  • Nationwide delivery and 2 to 3 day professional installation £6,000
  • Fixed Price Guarantee, we absorb every overrun £5,000
  • On Time Guarantee, £100 a day credit if we are late £3,000
  • 10 year insurance backed structural warranty £4,000
  • Walk a finished home before you pay a penny £1,500
Total value if purchased separately £61,500+

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

Factory precision beats field improvisation. Every time.

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.

Precision Engineered

CNC cut to sub millimetre accuracy in a climate controlled factory. No weather delays. No on site bodge jobs. Every joint perfect.

Guaranteed Quality

147 point inspection before it leaves our facility. 2 year full warranty. 5 year structural. 10 year envelope. Backed by third party insurance.

12 Week Delivery

From order to move in ready in 12 weeks. Your site prep runs parallel to manufacturing. No dead time. No delays.

Carbon Conscious

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

Triple glazed aluminium windows.
With blinds fitted free.

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.

  • Triple glazed as standard

    Aluminium framed glazing on every window and door, never a paid upgrade.

  • Blinds fitted free

    Premium blinds on every window and door, included in your fixed price.

  • Warmer and quieter

    Three panes cut heat loss and outside noise, so running costs stay low.

  • Built to last 50 years

    Aluminium frames will not warp, rot or rust for the life of the home.

Is this for you?

This is for people who are done waiting.

PrefabX is for you if:

  • You need extra space now, not in 12 months
  • You want a fixed price with zero risk of overruns
  • You want a fixed price and the full specification before you commit a penny
  • You are looking for an annexe, first home, or a place to downsize
  • You refuse to spend a year dealing with builders, delays, and excuses
  • You want 50 year build quality, not a glorified garden shed

PrefabX is not for you if:

  • × You want a fully bespoke architect designed mansion
  • × You enjoy 12 months of construction noise and scaffolding
  • × You are looking for the cheapest option regardless of quality
  • × You want something bigger than 80 sq m (talk to us about linking units)

The Range

Five layouts. Pick the one that fits your life.

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.

PrefabX Studio, Compact 1 bed, residential home exterior

Compact 1 bed

Studio

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.

  • Bedroom
  • Bathroom
  • Kitchen
  • Living room
  • Front door
PrefabX Hub, Open plan, residential home exterior

Open plan

Hub

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.

  • Open living space
  • Bathroom
  • Front door
PrefabX Annexe, 2 bedroom, residential home exterior
Most Popular

2 bedroom

Annexe

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.

  • Master bedroom
  • Second bedroom
  • Bathroom
  • Kitchen
  • Living room
  • Front door
PrefabX Exclusive, 3 bed, 2 bath, residential home exterior

3 bed, 2 bath

Exclusive

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.

  • Principal bedroom with ensuite
  • Second bedroom
  • Third bedroom
  • Family bathroom
  • Kitchen
  • Living and dining room
PrefabX Grand, 3 bed, 2 bath, residential home exterior

3 bed, 2 bath

Grand

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.

  • 3 Bedrooms
  • 2 Bathrooms
  • Kitchen
  • Living room
  • Front and back door

*Monthly payments estimated with deposit and financing. Calculate your payment

Lived in across the UK

Real homes, from town gardens to the coast.

The same engineered home, delivered finished and lived in across the UK. Here is how families put the modular home to work.

PrefabX modular home, Garden studios and annexes, United Kingdom

United Kingdom

Garden studios and annexes

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.

PrefabX modular home, Family homes, finished, Surrey and the Home Counties

Surrey and the Home Counties

Family homes, finished

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.

PrefabX modular home, Holiday and second homes, Coastal and rural

Coastal and rural

Holiday and second homes

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 without your home is a month you will never get back.

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

We take the risk. You take the home.

You should not have to gamble tens of thousands on a photo and a promise. So we removed every reason to hesitate.

Fixed Price Guarantee

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.

On Time Guarantee

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.

Quality Guarantee

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.

10 Year Structural Warranty

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.

PrefabX vs traditional construction

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

More affordable than you think.

Use our calculator to estimate your monthly payment. Our homes qualify for standard mortgage financing, personal loans, and specialist modular home finance.

£65,000
£25K£150K
20% (£13,000)
5%50%

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.

Built for the planet.
Built to last.

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.

  • Solar panels available, net zero energy ready
  • Discrete ThermaSkirt skirting heating included as standard
  • 85% less construction waste than site built
  • Triple glazed aluminium windows throughout, with blinds fitted free
  • High strength steel frame, fully recyclable
  • Superior thermal envelope for minimal energy use
  • 50 year lifespan means less replacement, less waste
Sustainable prefab home with energy efficient design

Limited production capacity

We manufacture 12 buildings per month. Current lead time is 4 to 6 weeks.

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.

Everything you need to know

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

Get a fixed price quote for your home.

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

Ways people use the modular home 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

Need commercial space?

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

Get the PrefabX brochure

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.

PrefabX modular home brochure front cover
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