Material alteration
According to the Building Regulations, a 'material alteration' is an alteration where the work, or any part of it, would at any stage result:
- In a building or controlled service or fitting not complying with a relevant requirement where previously it did; or
- In a building or controlled service or fitting which before the work commenced did not comply with a relevant requirement, being more unsatisfactory in relation to such a requirement.
Where a 'relevant requirement' is any of the following applicable requirements of Schedule 1, namely:
- Part A (structure).
- paragraph B1 (means of warning and escape).
- paragraph B3 (internal fire spread—structure).
- paragraph B4 (external fire spread).
- paragraph B5 (access and facilities for the fire service).
- Part M (access to and use of buildings).
And a 'controlled service or fitting' means:
A service or fitting in relation to which Part G, H, J, L or P of Schedule 1 imposes a requirement.
[edit] Related articles on Designing Buildings
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Construction Management, 2 June
Construction deaths halve in two years.
Green Book changes to drive investment in all parts of UK.
Minimum energy efficiency standards (MEES)
CIAT briefing on response to consultations for privately rented non-domestic properties.
Connect, collaborate, shape the future
Registration now live for UK Construction Week Birmingham.
CIOB announces Saul Humphrey FCIOB as new President for 26/27 term.
A quick, simple, and zero-bills solution to prevent overheating.
The adaptive reuse of large industrial structures.
Promoting the circular economy by extending the life of buildings.
CIAT responds to Climate Change Committee report
An urgent wake-up call for both government and the built environment.
Construction Management, 24 June
FMB pilot aims to build pipeline of site-ready tradespeople.
A quick introduction.
CLC publishes Mental Health Joint Code of Practice.
A quick introduction to its uses and risks.

















