Build Raises $8.5M Seed for AI Real Estate Platform

Build, a startup founded by James Stirrat-Ellis and Ben McClusky, raised $8.5 million in seed funding led by Index Ventures. The company's multi-agent AI platform automates site sourcing, due diligence, and structural design for large-scale real estate projects, using over 1,600 data sources. The round included Pebblebed, Puzzle Ventures, Tiny.vc, and angel investors Sarah Friar and John Stecher.