Site Office and Welfare for a Self-Build — What You Need by Law (SHWW 2013)
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Toilet, washing, drinking water, and a place to dry clothes. Mandatory under the Safety, Health and Welfare at Work (Construction) Regulations 2013.
Site welfare is mandatory under the Safety, Health and Welfare at Work (Construction) Regulations 2013 (SI 291/2013). The minimum requirements: a toilet, washing facilities, drinking water, a place to dry clothes, and a sheltered area for breaks. For a self-build, the cheapest compliant setup is a chemical toilet hire plus a small welfare cabin, €150–€300/month. The PSCS (Project Supervisor Construction Stage) is responsible for welfare on site. If you're acting as PSCS yourself (common on direct-labour builds), it's your duty. If a main contractor is PSCS, it's theirs. Inspectors from the Health and Safety Authority (HSA) can visit any site and issue improvement notices or closure orders for non-compliance.
When this matters most
You're at the pre-construction phase and need to plan site setup.
When this doesn't apply
Your build is finished.
Sources
Health and Safety Authority, Construction Regulations 2013 and PSCS / PSDP duties. https://www.hsa.ie/
Irish Statute Book, Safety, Health and Welfare at Work (Construction) Regulations 2013 (SI 291/2013). https://www.irishstatutebook.ie/
Frequently asked questions
Do I need a site office for a self-build?
Not strictly, but you do need welfare facilities (toilet, washing, drinking water, dry room, sheltered area). A welfare cabin provides all of these for €150–€300/month.
What is a PSCS?
Project Supervisor Construction Stage. Required by the SHWW (Construction) Regulations 2013. Responsible for safety and welfare on site during the build. Must be appointed before construction starts.
Can I be my own PSCS?
Yes, on a self-build. You take on the duty. Most main contractors will require you to appoint a professional PSCS if you are direct-labour building.
When this matters most
You're at the pre-construction phase and need to plan site setup.
When this doesn't apply
Your build is finished.
Where to go next
Next decision
The next step in your build sequence.
- Foul Drainage Connection in Ireland — Mains Sewer, Treatment System, or Septic →
- Is My Site Buildable in Ireland? The Five Checks That Decide It →
- Land Registry Check in Ireland — Folio, Map, and What to Look For Before You Buy →
- On-Site Electricity for a Self-Build in Ireland — Temporary Connection, Generator, or Solar →
- Ribbon Development in Ireland — The Planning Policy That Refuses Houses Along Rural Roads →
- Site Access in Ireland — Road Entrances, Sightlines, and the Road Opening Licence →
- Site Security on a Self-Build in Ireland — Hedges, Hoardings, CCTV, and Insurance →
- Site Survey in Ireland — Topographical, Measured, and Boundary Surveys →
Branch into
Adjacent decisions at the same stage.
- Flood Risk Maps in Ireland — How to Check opw.ie Before You Buy a Site →
- Percolation Tests in Ireland — EPA T-values, What They Mean, and What Costs When You Fail →
- Rural Housing Policy in Ireland 2026 — Local-Needs Tests and How Counties Vary →
- Septic Tank vs Mains Sewer in Ireland — When Each Applies and What It Costs →
- Well Yield Tests in Ireland — How to Confirm a Rural Water Supply Before You Buy →
Watch out for
Common mistakes, hidden costs, gotchas.
- Percolation Tests in Ireland — EPA T-values, What They Mean, and What Costs When You Fail →
- Septic Tank vs Mains Sewer in Ireland — When Each Applies and What It Costs →
- Site Assessment Cost in Ireland — Soil Test, Percolation Test, Water Test, and What to Order Together →
- Site Purchase Costs in Ireland — Stamp Duty, Legal Fees, and What Adds Up →
- Irish Soil Classification — Class 1 to Class 5+ and What Each One Costs You in Foundation →
Compare with
Alternative approaches worth knowing.