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AI Real Estate Valuation & Due Diligence Platform

15-page property due diligence report in 90 seconds — validated to sub-4% valuation error against actual sales

🇺🇸 US🇬🇧 UK90-second reports · sub-4% valuation error rate

Overview

Automated property valuation and due diligence platform generating 15-page investment-grade reports per property in under 90 seconds. Used by real estate investors and broker networks in the US and UK.

The Challenge

Independent property valuations cost $400–600 and take 3–5 days. Active investors evaluating 20+ properties per month cannot afford that cadence — so they either pay enormous fees or make acquisition decisions with insufficient data.

What We Built

A platform where investors submit a property address and receive a 15-page due diligence report covering: AI-generated price estimate with confidence interval, comparable sales analysis (all sold properties within 1km, AI-adjusted for size, condition, and time), risk overlays (flood, subsidence, school catchment scores), neighbourhood trend analysis (12-month and 5-year price movement), and rental yield projection.

Tech Stack

ReactPythonFastAPIPostgreSQLAWSTensorFlow

Key Outcome

90-second reports · sub-4% valuation error rate

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The AI Layer

The valuation model uses a gradient boosting ensemble trained on 3.2M property transactions across US and UK markets. Features include property attributes (size, bedrooms, build year, condition indicators from listing descriptions), location signals (proximity to transport, schools, employment centres), market signals (days on market trends, auction clearance rates), and macro signals (interest rate environment, regional employment). The model has been validated against 18 months of actual sale prices — achieving a mean absolute error of 3.7%, competitive with human-produced valuations that take days to produce.

Results

  • 90-second report generation vs 3–5 day traditional process
  • Sub-4% mean valuation error validated against actual sales
  • $19 per report vs $400–600 traditional valuation
  • Used by 40+ active real estate investors
  • Delivered in 36 days