Building regulations: material change definition

L1011

Having a bit of a dispute over whether getting a rewire to a house - standard domestic two storey that is stating as such - requires it to meet increased fire safety standards as under the 2017 regs.

I'm fairly sure it doesn't. House predates any building regs and is having no external changes, no structural works, nothing that has needed planning.

Stanford

No planning needed for a rewire but compliance with the Regs needed

L1011

Its the 2017 requirement for wired fire detector heads that's the issue - it wasn't raised until exceptionally late (too late, really - floors are back down etc) in the job and as far as I can tell, repair and renewal does not bring any requirement to meet any regulations other than for what's being done.

The rewiring meets the newest Irish standards but was to have 10 year battery detector heads (of appropriate types for the room) in four locations

Gumbo

I wouldn’t class a rewrite as a material alteration with regards to Building Regulations.

it would of course have to meet current IS10101 Regulations and to be honest, considering how invasive a rewire is, you’d be mad not to run a interconnected fire detection system in all rooms!

Mellor

I think this could be a bit of a Catch-22.

I'm not certain, but isn't the trigger for "material alteration", any works where part B applies.

In which case, you are required to install detectors to part B when you are required to install detectors to part B.