Agentic UK Construction Phase Plan (CPP) generation, F10 notification submission pack, and Principal Contractor CDM compliance checklist service for small construction firms and sole-trader contractors (1–20 staff) required under CDM Regulations 2015 to produce a written CPP before any notifiable project begins. Replaces the CDM consultant or H&S adviser who charges £600–£2,500 per project to draft the CPP, complete the HSE F10 notification, and produce the pre-construction information summary.
Why now
No fresh signal available today; justified by persistent CDM Regulations 2015 enforcement activity and HSE's ongoing small contractor inspection campaigns (https://www.hse.gov.uk/construction/cdm/2015/index.htm) plus recurring r/Construction pain around CDM paperwork overhead.
Source signals
https://www.hse.gov.uk/construction/cdm/2015/index.htm
Commercial value
UK has 300,000+ small construction firms; every notifiable project (>30 working days or >500 person-days) legally requires a CPP. Consultants charge £600–£2,500 per plan. Target ACV: £150–£400/mo subscription covering 2–5 projects/month, or £99–£199 per plan pay-as-you-go. Budget line item is currently paid to H&S consultants or CDM coordinators. TAM intuition: even capturing 5,000 small contractors at £200/mo = £12m ARR.
Go-to-market
Cold outreach to 200 small UK groundworks and fit-out contractors via LinkedIn and Checkatrade profiles. Offer first CPP free, then £99/plan or £199/mo unlimited. Hook: 'HSE-ready Construction Phase Plan in 20 minutes.' Target 10 paying customers in 30 days via direct DM to site managers.
2-week MVP
A single Typeform intake (project type, site address, durations, hazards, subcontractors) piped into a GPT-4o prompt that outputs a formatted, HSE-compliant Construction Phase Plan PDF — no dashboard, no user accounts, no F10 auto-submission. First customer pays £99 and receives their CPP by email within 1 hour. Everything else (template library, integrations, F10 filing) is cut.
Agent score
0.61 — Commercial score is high because the budget line (CDM consultant fee) is real, recurring, and per-project; 300k addressable firms with legal obligation pushes TAM. Speed score is high because the MVP is a form + LLM + PDF email — shippable solo in under a week; first 10 customers reachable via Checkatrade/LinkedIn without paid ads. Defensibility is low-honest: no proprietary data moat yet; rises to 0.6+ only if the product accumulates a project-type template library and integrates with Procore/Buildertrend for lock-in.
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