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Buyer Guides7 min readBy New Chapter Homes

Modular Homes Northern Ireland: A Guide to Building Across the Border

Modular homes in Northern Ireland — how building across the border works, NI Building Regulations, the Planning Portal, and delivery to all six counties.

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Modular Homes Northern Ireland: A Guide to Building Across the Border — Buyer Guides article by New Chapter Homes Ireland

Looking for the full picture? Read our complete guide to modular homes in Ireland.

Modular Homes in Northern Ireland

A modular home in Northern Ireland follows the same factory-built principle as in the Republic — but the planning and building-control framework is different. This guide explains how building a modular home in Northern Ireland works, the regulations that apply, and what to expect across the border.


The Northern Ireland Framework

  • Planning is handled through the Planning Portal NI and your local council.
  • Building control is governed by the Northern Ireland Building Regulations (the current edition).
  • A permanent modular home needs planning permission and building control approval, just like a traditional house.
  • A certified modular home is permanent with UK and Irish lenders operating in NI.

How It Differs from the Republic

| Factor | Republic of Ireland | Northern Ireland | |---|---|---| | Planning | Local authority / An Bord Pleanála | Planning Portal NI / local council | | Building regs | Irish Building Regulations | NI Building Regulations | | BER | BER certificate required | SAP / EPC required | | Exemptions | 30m² general / 32–45m² Class 3A (in force Jul 2026) | Different exempted development limits |

The construction method — a factory-built, certified modular home — is the same; the paperwork and the regulator differ.


Delivery to All Six Counties

Modular homes can be delivered across all six counties of Northern Ireland — Antrim, Armagh, Down, Fermanagh, Londonderry and Tyrone — including Belfast, Derry/Londonderry, Newry, Lisburn and Ballymena. Cross-border delivery from a factory in the Republic is routine.


Mortgages in Northern Ireland

Certified modular homes with planning permission and building control approval are permanent with lenders operating in NI. The requirements are the same in principle — certification, a fixed contract, a permanent foundation and a warranty — but the lender will use NI building control sign-off rather than Irish BER.

See: Can You Get a Mortgage on a Modular Home?


Talk to Us About a Northern Ireland Build

At New Chapter Homes, we deliver modular homes across the island of Ireland, including Northern Ireland. Book a free consultation to talk through a build in any of the six counties.

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