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Planning & Law7 min readBy New Chapter Homes

Modular Homes Fire Safety Regulations Ireland 2025: Part B Compliance

Modular homes must meet the same fire safety standards as traditional Irish builds under Part B. Learn the fire resistance, detection, and escape requirements for your pod or home.

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Modular Homes Fire Safety Regulations Ireland 2025: Part B Compliance — Planning & Law article by New Chapter Homes Ireland

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

Fire Safety Standards for Modular Homes in Ireland

There is a common misconception that modular or prefabricated homes have lower fire safety standards than traditional builds. This is completely false. Every modular home in Ireland must comply with Part B (Fire Safety) of the Building Regulations — the same standard applied to block-and-mortar houses.

Part B: What It Requires

Part B of the Irish Building Regulations covers five key areas:

1. Fire Resistance

  • 30-minute fire resistance for structural elements in standard residential dwellings.
  • 60-minute fire resistance for two-storey homes and larger structures.
  • Fire-resistant plasterboard, fire-stopped cavities, and protected escape routes.

2. Means of Escape

  • All habitable rooms must have a direct or protected route to a final exit door.
  • Upper-floor bedrooms must have an escape window (minimum 450mm x 750mm) or a protected stairway.
  • Travel distances to exits must not exceed statutory maximums.

3. Fire Detection and Alarm

  • Mains-wired smoke detectors with battery backup in all circulation spaces.
  • Heat detectors in kitchens.
  • Interlinked alarms — if one goes off, they all go off.
  • Since 2025, all new builds must use tamper-proof, sealed 10-year batteries for any battery-backed alarms.

4. Internal Fire Spread

  • Fire doors (FD30 minimum) on protected escape routes.
  • Fire-stopped service penetrations (pipes, cables through walls/floors).
  • Cavity barriers in wall and floor voids.

5. External Fire Spread

  • Minimum distances between buildings (or fire-rated boundary walls).
  • Roof coverings with adequate external fire performance.

Why Modular Construction Improves Fire Safety

Factory-built modular homes often achieve better fire safety outcomes than site-built homes because:

  • Consistent fire-stopping — installed in controlled factory conditions, not rushed on site.
  • Documented inspection — every fire-stopping detail is inspected and photographed during manufacturing.
  • No weather damage — fire-resistant materials aren't compromised by rain or moisture during construction.
  • Precise compartmentation — factory tolerances are tighter, meaning fewer gaps to fire-stop.

Fire Safety for Garden Pods

Even if your garden pod is exempt from planning permission (under the 25m² rule), it must still comply with building regulations, including fire safety. A pod used for sleeping must have:

  • A clear escape route.
  • Mains-wired or interlinked wireless smoke detection.
  • Appropriate fire resistance for its use.

Our Chapter Two garden pods are designed with these requirements as standard.

Commercial Use: Higher Standards

If you plan to use a modular pod for commercial purposes (holiday letting, office, retail), the fire safety requirements are higher:

  • Commercial fire risk assessment required.
  • Higher occupancy means more escape routes and wider doors.
  • Fire extinguishers and emergency lighting may be needed.

We design commercial-spec pods to meet these standards when required.

Certification at Handover

When we hand over your New Chapter home, you receive a fire safety compliance pack documenting all Part B requirements — fire resistance details, detector specifications, escape route calculations, and cavity barrier placement.

Contact us to discuss fire safety for your modular project.


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