Drawing no. 001 / The Review

The homes built in a factory,
judged like architecture.

Honest reviews of UK modular and prefab manufacturers, real cost breakdowns, lead times and planning know-how, written for people about to spend serious money.

Factories
40+
Build time
12wk
No spin
100%
A contemporary UK modular home with timber cladding and full-height glazing
Fig. 01 — Factory-built, site-assembled 3.6m × 7.2m module

The index

Reviews & buyer guides

Every piece is independent. We are not paid by the factories we cover, and we say so when a build disappoints.

Costs & Budgeting

How Much Does a Modular Home Cost in the UK? 2026 Price Breakdown Per m2

Modular home cost UK: a 2026 per m2 breakdown covering the module, groundworks, connections, planning and the hidden extras most quotes leave out.

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Do You Need Planning Permission for a Modular Extension? UK Rules Explained
Planning & Building Regs

Do You Need Planning Permission for a Modular Extension? UK Rules Explained

Most modular extensions fall under permitted development and need no planning permission. Here are the UK size limits, prior approval and building regs rules.

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Can You Get a Mortgage on a Prefab House? UK Lender Guide for 2026
Buying, Mortgages & Land

Can You Get a Mortgage on a Prefab House? UK Lender Guide for 2026

Yes, you can get a prefab house mortgage in the UK. Here is which lenders accept them, the deposit you need, and the certificates that make or break your case.

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SIPs vs Timber Frame: Which Is Better for a Modular Home?
Construction Methods & Materials

SIPs vs Timber Frame: Which Is Better for a Modular Home?

SIPs vs timber frame for a UK modular home: airtightness, U-values, speed, cost, mortgages and warranties compared, with a clear pick for each scenario.

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Why Modular Homes Get Condensation (and How to Stop It)
Construction Methods & Materials

Why Modular Homes Get Condensation (and How to Stop It)

Modular home condensation problems explained: the real causes in airtight UK factory-built homes, plus practical fixes that actually work.

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How Long Do Modular and Prefab Homes Actually Last?
Construction Methods & Materials

How Long Do Modular and Prefab Homes Actually Last?

How long do modular homes last? A modern UK modular or prefab home lasts 60 to 100-plus years, with the build standard and maintenance deciding the difference.

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Do Modular Buildings Need Building Regs Approval? What Still Applies in 2026
Planning & Building Regs

Do Modular Buildings Need Building Regs Approval? What Still Applies in 2026

Modular building regulations explained: when approval is needed, the exemptions, the approval routes, and how 2026 rules apply to off-site homes.

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The Complete UK Guide to Buying a Modular or Prefab Home
Buying, Mortgages & Land

The Complete UK Guide to Buying a Modular or Prefab Home

Buying a modular home in the UK: planning, building regs, mortgages, warranties, costs and timelines explained in plain English.

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Modular Home Cost Calculator
Tools

Modular Home Cost Calculator

Free modular home cost calculator for the UK: estimate a full budget by floor area, storeys, spec and region, with groundworks, craneage and fees added.

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Modular Extension Planning Checker
Tools

Modular Extension Planning Checker

Free modular extension planning permission checker for England: answer a few questions, get a plain-English outcome and the rule that triggered it.

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Prefab Mortgage Affordability & LTV Estimator
Tools

Prefab Mortgage Affordability & LTV Estimator

Free prefab mortgage calculator UK: estimate borrowing on non-standard construction homes at 75% LTV and 4.5 to 5.5x income, plus your deposit gap.

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Field notes / Issue 2026

Plans, prices and lead times from the UK offsite world, every fortnight.

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