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Point a retrieval engine at proposal writing, and let people review output instead of producing it. Aimed at construction estimators, so the work stops following people home.
In short: Construction Proposal Builder on Retrieval is a retrieval engine aimed at construction estimators, covering proposal writing. It scores 80/100 on AltF Ideas, carried by demand (95) and held back by monetisation (54). Typical pricing is $3.1k–$55k per customer per year, with a first version reachable in about a quarter for $14k–$34k.
Construction teams lose proposals rebuilt from scratch that are 80% identical. Nobody owns this process, which is exactly why it keeps breaking. It scales linearly with headcount, so growth makes it worse rather than better.
Point a retrieval engine at proposal writing, and let people review output instead of producing it. Revenue is per-project, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $1.4B |
|---|---|
| Category growth (CAGR) | 20% |
| Annual contract value | $3.1k – $55k |
| Pricing model | Per-project |
| Time to first revenue | 46 days |
| Startup cost to MVP | $14k – $34k |
| Build effort | ~1 quarter |
Retrieval over private documents became cheap enough to run per query. Construction is growing at roughly 20% a year, and this job has not been re-tooled since it was designed around paper.
| Who | The gap |
|---|---|
| A generalist AI tool | No domain grounding, so output needs full human review |
| An offshore back office | Cheaper per hour, but does not scale down to the tail |
| A spreadsheet | The real incumbent in most of the market, and it is free |
Accuracy is unforgiving here — one wrong output costs more than the subscription.
An idea you cannot act on is entertainment. Four concrete steps, wired to tools already running on AltFTool.
Score problem urgency, willingness to pay, and reachable audience size before writing any code.
→ AltF IdeaLabAsk how they handle this today and what it costs them. If nobody can quantify the pain, the demand score is optimistic.
→ Survey BuilderCheck availability, DNS, and email authentication in one pass so your first outreach lands in an inbox.
→ AltF DomainOpsStand up intake, the review queue, and billing before you build the clever part.
→ AltF Flow