Working in Wales
These guides cover where Welsh building regulations, planning law, environmental rules and housing law differ from England. If you work across the border, read the main guide first then check here for Welsh-specific differences.
13 guides in this section
These guides cover Wales specifically. If your job is in England, use the main SiteKiln guides instead.
Building and compliance
Working in Wales: Building Regulations Differences You Need to Know
Building regulations differences in Wales. What changed when Wales took control and what builders need to know on Welsh jobs.
Working in Wales: Planning Rules That Catch English Builders Out
Planning rules in Wales are not the same as England. Key differences in permitted development, applications and Welsh policy.
Working in Wales: Energy, Part L and Future Homes Differences
Part L energy rules in Wales. How Welsh thermal and energy requirements differ from England and what it means on site.
On the ground
Fire and CO alarm rules: England vs Wales vs Scotland
Fire and CO alarm rules compared: England vs Wales vs Scotland. Each country has different requirements — know which apply.
Working in Wales: Environmental Regulations and Waste
Environmental rules in Wales. How waste, water and pollution regulations differ from England for construction businesses.
Working in Wales: Housing and Landlord Regulations
Housing and landlord rules in Wales. Renting Homes Act, Rent Smart Wales and what builders doing rental work need to know.
Rent Smart Wales: Landlord Registration for Trades Working on Rentals
NewRent Smart Wales registration and licensing explained. How to check if a landlord client is compliant, why it matters to you, and what to do if they're not.
NRW Environmental Permits: The Welsh Version of the EA
NewNRW permits for construction in Wales. Water discharge, abstraction, flood risk, waste, pollution reporting, and how NRW differs from the Environment Agency.
Essential Reading
Welsh Planning - Quick Reference Card
A one-pager for the van — the bits of Welsh planning that actually matter if you're used to the English system. Local plans and decisions must follow it.
SAB and SuDS Drainage in Wales: The Rules England Hasn't Got Yet
NewWales requires SAB approval for SuDS on new developments. What triggers it, how to apply, fees, timescales, and what happens if you start without it.
Small Claims and Debt Recovery in Wales: What Is Different
NewChasing a debt in Wales? Same County Court system as England, plus Welsh language rights. Fees, timescales, enforcement, and practical tips for tradespeople.
Building Control in Wales: How It Differs From England
NewBuilding control in Wales. LABC, Registered Building Control Approvers, Full Plans vs Building Notice, competent person schemes, and where Welsh regs diverge from England.
Welsh Language in Construction: When You Must Provide Bilingual Documents
NewWelsh language rules on construction sites. When bilingual signage is required, public sector tendering, and why private domestic work is not affected.