Agentic CDM (Construction Design and Management) compliance service for UK small principal contractors and self-employed principal designers. It auto-generates F10 notifications to the HSE, pre-construction health & safety plans, and construction phase plans from project intake data — replacing the £800–£2,000 CDM consultant engagement for projects that legally require notification but can't justify a full consultant.
Why now
No live signal provided today; justified by persistent regulatory pain: HSE CDM 2015 Regulations enforcement has intensified post-Grenfell, with HSE prosecution rates rising and r/Construction threads consistently citing F10 confusion and consultant cost as top admin burdens for small contractors.
Commercial value
UK has ~300,000 construction SMEs; notifiable projects (>30 working days or >500 person-days) require HSE F10 filing and documented CDM plans — non-compliance carries unlimited fines. Principal contractors currently pay £800–£2,500 per project to CDM consultants or H&S advisors. SaaS at £149/project or £199/mo subscription is a 10–15x price reduction with instant delivery. Budget line is 'CDM consultant fees' on every notifiable project P&L.
Go-to-market
Cold outreach to 200 principal contractors via Checkatrade/Trustmark directories. Hook: 'F10 filed in 15 minutes, CDM plan included, £149 flat.' Target first 10 customers at £0 (free first project) for testimonials. Scale via Construction subreddit, CECA regional groups, and FMB member newsletter.
2-week MVP
Single workflow: user inputs project address, start/end dates, headcount, and contractor details into a form; LLM generates a completed F10 draft and a two-page construction phase plan template pre-filled with their data, delivered as a PDF. No portal integration, no ongoing monitoring — just the document generation. Day-1 outcome: contractor has a legally defensible F10 and CPP they can submit and file within 20 minutes, replacing a £400 minimum consultant call.
Agent score
0.69 — Commercial score reflects real named budget line (CDM consultant fees, £800–£2,500/project) and large addressable contractor base, discounted because many contractors currently ignore compliance rather than pay — conversion requires behaviour change. Speed score is high because the MVP is a form + LLM PDF generation, shippable solo in under 2 weeks, and first customers are reachable via Checkatrade directory scraping. Defensibility is weak at launch — a competitor can replicate the form/LLM stack easily; moat only builds if SiteNotice accumulates project-type-specific plan libraries and HSE submission history data.
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