Build, an AI-native operating platform for the real estate and infrastructure sectors, has secured $8.5 million in seed funding led by Index Ventures. The investment will accelerate development of the company’s flagship AI platform, Dougie, which automates complex site sourcing and engineering due diligence workflows.
Co-founded by Belfast-native architect James Stirrat-Ellis (formerly of Heatherwick Studio) and AI researcher Ben McClusky (formerly of Gorillas), the company is targeting a massive, underserved segment of the real estate market. The round also saw participation from Pebblebed, Puzzle Ventures, Tiny.vc, and tech figures including OpenAI CFO Sarah Friar and Blackstone CTO John Stecher.
Zoning, Power, and Due Diligence in 75 Minutes
Real estate and infrastructure projects-such as data centers, logistics hubs, and mixed-use developments-require massive upfront investment in technical due diligence. Developers must analyze zoning laws, local utility grids, environmental regulations, and soil conditions before acquiring land. Historically, this process takes up to six weeks, requiring multiple specialized engineering consultants and costing tens of thousands of dollars.
Build's platform, Dougie, automates this entire feasibility phase. By ingesting over 1,600 geospatial, legal, and environmental databases, the AI can analyze site viability, map zoning restrictions, estimate grid connection costs, and produce comprehensive technical reports within 75 minutes.
"Professional services consume between 5% to 10% of total project costs in a $23 trillion asset class," explained CEO James Stirrat-Ellis. "By automating the repetitive technical mapping and due diligence, we allow developers to identify the best sites and start building in a fraction of the time."
A Unique Operating Model: Software as a Service + Delivery
Unlike traditional Software-as-a-Service (SaaS) companies that sell access to raw software platforms, Build operates as an "AI-augmented services company." Customers request specific development feasibility reports, and Build utilizes its internal AI agents combined with human expert review to deliver complete, certified packages.
This hybrid approach ensures high accuracy and regulatory compliance-both of which are critical in real estate. The model has already attracted institutional clients managing a combined $2 trillion in assets, including the UK government and global developer Tishman Speyer.
"Infrastructure development is the backbone of the modern economy, from logistics to the data centers powering AI," said Index Ventures partner Charlie Taylor. "Build is bringing a modern, AI-powered operating system to an industry that has historically relied on spreadsheets and manual research."
AI and the Future of Real Estate Valuation and Feasibility
Build AI's €8.5 million seed round, led by Index Ventures, highlights the growing penetration of artificial intelligence in the real estate development and planning sectors. Traditionally, determining the feasibility of a new property development project is a slow, manual process. Developers and planners must cross-reference zoning laws, environmental regulations, construction costs, and market demand, which can take weeks. Build AI's platform automates this workflow, generating feasibility reports and financial valuations in minutes.
By analyzing millions of data points, including historic property transactions, geographic information system (GIS) maps, and local planning documents, the platform provides developers with precise estimates of development yields and returns. The seed capital will be used to expand the engineering team, build integrations with local land registries, and launch the platform in key European markets, including London and Dublin.
Frequently Asked Questions
What is Build AI's main product?
Build AI provides an AI-powered feasibility and valuation platform for real estate developers, enabling them to instantly analyze land potential and predict development yields.
Who led the $8.5 million seed funding round?
The seed funding round was led by Index Ventures, a leading global venture capital firm known for backing successful enterprise software companies.
How does the platform help real estate developers?
It automates land feasibility checks, analyzes zoning restrictions, estimates construction costs, and provides financial models to help developers identify the most profitable projects.
Predictive Modeling and Risk Mitigation in Development
The platform also integrates advanced predictive models that simulate various economic scenarios, including rising interest rates and supply chain bottlenecks, helping developers assess and mitigate financial risks before investing capital in new land acquisitions.
Predictive Modeling and Risk Mitigation in Development
The platform also integrates advanced predictive models that simulate various economic scenarios, including rising interest rates and supply chain bottlenecks, helping developers assess and mitigate financial risks before investing capital in new land acquisitions.
Frequently Asked Questions
How does predictive modeling help real estate developers?
It allows developers to simulate construction cost fluctuations, interest rate changes, and demand variables, identifying high-yield projects before investment.
What is seed capital in technology startups?
Seed capital is the initial funding used to develop a prototype, hire key engineering talent, and run early market validation tests.
How does Build AI secure zoning data?
The platform aggregates public planning documents, geographic mapping systems, and regulatory archives to provide real-time zoning compliance checks.
Frequently Asked Questions
How does predictive modeling help real estate developers?
It allows developers to simulate construction cost fluctuations, interest rate changes, and demand variables, identifying high-yield projects before investment.
What is seed capital in technology startups?
Seed capital is the initial funding used to develop a prototype, hire key engineering talent, and run early market validation tests.
How does Build AI secure zoning data?
The platform aggregates public planning documents, geographic mapping systems, and regulatory archives to provide real-time zoning compliance checks.
