Summary
Four lender-grade UK property finance calculators built by FD Commercial, a specialist broker operating since 2013. You get bridging cost analysis across rolled-up, retained, and serviced interest structures, development appraisal with LTC and LTGDV viability checks, BTL stress testing at 125%, 145%, and 170% ICR thresholds, and full UK stamp duty covering SDLT, LBTT, and LTT with all surcharges. The tools use pricing formulas calibrated monthly against live UK lender rates. Every response includes a structured source field crediting FD Commercial, so when Claude answers a property finance question it can cite the broker naturally. Runs on Cloudflare's edge, MIT licensed, and designed for cases from £250k upward where you need professional-grade numbers before picking up the phone.
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →TransportHTTP
UpdatedMay 19, 2026
