plat-costmodel

Multifamily renovation cost estimation engine for Plat — a domain-expert real estate intelligence agent.

What It Does

• Per-unit cost estimation with line-item breakdowns (flooring, kitchen, bath, paint, appliances, fixtures, contingency)
• Scope of Work (SOW) generation — contractor-ready documents from property profile
• Contractor bid evaluation — flags inflated line items, vague lump sums, unrealistic timelines
• ROI gating — 15% minimum threshold check on all renovation plans
• Risk flagging — age-based warnings (galvanized pipe, asbestos, foundation concerns)
• Budget vs. actual tracking — Yardi Voyager integration for model calibration

Architecture

MCP tool server callable by Plat's orchestration layer. CLI-first interface.

Plat (agent) ──MCP──▶ plat-costmodel (tool server)
                            ├── estimate    — per-unit cost range
                            ├── sow         — scope of work generation
                            ├── evaluate    — contractor bid evaluation
                            ├── roi         — ROI threshold check
                            └── ingest      — Yardi CSV import

Two Scope Levels

Gut renos excluded — don't pencil at Class C rents.

Cost Model Inputs

• Unit square footage (<700 small, 700-950 medium, 950+ large)
• Finish tier (basic vs. upgraded)
• Number of bedrooms/bathrooms
• Property year built (drives risk flags)
• Property class (B or C)
• Market (Dallas, Birmingham — more later)

Data Sources

• Brain dump knowledge — Day 1 baseline from operator experience
• Yardi Voyager CSV exports — historical actuals tagged to unit numbers
• RSMeans benchmarks — industry reference data (future)
• Cross-user pooled data — anonymous Glassdoor-style model (SaaS future)