Section index
Planning & Building Regs
Planning & Building Regs reviews, comparisons and buying guides from The Modular Home Review.
In this section
3 pieces
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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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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Permitted Development Rights for Garden Annexes and Modular Rooms
Permitted development garden annexe rules in England: why a self-contained annexe needs full planning permission, plus Class E limits, Building Regs and
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