Build raised $8.5M from Index Ventures for AI agent automating data center permits

British startup Build on July 1, 2026 closed a seed round of $8.5 million (€7.4 million) led by Index Ventures. The raised funds will go toward scaling an AI-agent platform that, according to the company, reduces pre-project approvals for the construction of data centers, power plants, and industrial facilities by 95%.

What Build automates and why

The construction of large-scale infrastructure begins long before the first excavator arrives. A developer who wants to build a data center first goes through a multi-stage "paperwork" marathon: selecting and performing technical analysis of a land plot, due diligence on property-establishing documents, assessing the availability of energy capacity, environmental impact assessment, coordination with local authorities and regulators, obtaining building permits and technical specifications. This pre-project phase takes from eight months to two years — depending on the country and region.

Build transforms it into a task for AI agents. The platform analyzes the regulatory environment of a specific region, collects data from cadastral registries, environmental databases and public sources on power grid capacity, then generates a complete package of documentation that was previously manually prepared by teams of lawyers, development consultants and engineers.

Key parameters of the round:

• Volume: $8.5 million (€7.4 million) in seed investments
• Lead investor: Index Ventures
• Date: July 1, 2026
• Country of incorporation: United Kingdom
• Target clients: developers of data centers, power plants, industrial facilities

Why bureaucracy, not money, is slowing down AI infrastructure construction

Demand for physical infrastructure for AI has grown dramatically: data centers for training and running large language models consume hundreds of megawatts. Microsoft, Google, Amazon and Meta have announced multi-billion dollar programs to build new capacity around the world.

The speed of construction is constrained not only by financing. The real bottleneck is the pre-project phase: it is practically impossible to get approvals faster than the regulatory system allows. This creates a chronic lag — capacity is needed today, but the first facility after an investment decision is made often opens three to four years later. Automating the "paperwork" stage remains one of the few levers capable of genuinely reducing the cycle.

What this means

The participation of Index Ventures — one of Europe's leading venture capital funds with a portfolio ranging from Figma to Robinhood — confirms: automation of infrastructure due diligence is becoming an independent investment category.

AI agents have already demonstrated effectiveness in code writing and working with legal documents. Construction documentation is the next logical frontier: the market is huge, processes are poorly automated, and each extra month of approvals costs millions of dollars on a large project. If Build delivers on its promised 95% acceleration, the company has a chance to become a standard tool for AI infrastructure developers around the world.

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