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AutoSitu

The AI operating system for the built world

At AutoSitu, we’re building the AI operating system for the built world—coordinated AI agents that work across development, design, review, and construction. Our agents analyze complex plans, requirements, and project documentation in minutes—surfacing critical issues, doing the heavy lifting, and escalating the decisions that require human expertise. From site feasibility and entitlement risk to QA/QC, code compliance, constructability, quantity takeoff, and scope analysis, AutoSitu helps cities, architects, engineers, developers, and construction teams identify problems earlier and move projects forward with greater speed and confidence. We serve as a strategic AI partner to forward-thinking public agencies and AEC organizations across the country and are backed by Y Combinator (W26).
Active Founders
Xuanshu (Asher) Lin
Xuanshu (Asher) Lin
Founder/CEO
Lin combines a background in Urban Planning and Architecture from the University of Michigan, bringing policy insight and design expertise to AutoSitu. He leads product strategy focused on zoning and site plan compliance, with hands-on experience across projects in Champaign–Urbana and Detroit’s Joe Louis Greenway. An APA Planning and Design Competition Honorable Mention recipient, Lin works to make compliance faster, clearer, and more accountable.
George Zhai
George Zhai
Founder/CTO
A Georgia Tech graduate, he has worked on autonomous cars, boats, and robotic systems, consistently pushing the boundaries of autonomy. George is known for rapidly engineering novel, highly cost-effective solutions—bridging advanced AI with real-world applications from self-driving vehicles to scalable automation.
Company Launches
AutoSitu: AI-native Development Plan Review for Faster Approvals
See original launch post

TL;DR: Hi YC! We’re Lin and George, founders of AutoSitu. We’re building software that automatically reviews site and building plan sets in minutes and surfaces what a city is likely to flag before you submit.

🧱 Problem
In real estate, time kills deals — and permitting/review is one of the biggest sources of delay and variance.
Most projects go through 2–3 resubmittal cycles, adding 3–9 months.

  • Developers: $50k–$250k+ in carrying costs while projects sit in review
  • Architecture teams: 80–200 hours of unplanned work per resubmittal
    → at ~$130/hr, that’s $10k–$25k+ of margin erased on fixed-fee work 🐌

⚡ Solution
AutoSitu is an AI-powered development plan review engine that flags the issues that typically surface later — before submission, when fixes are cheap.

Teams use AutoSitu to:

  • reduce city comments 50–70%
  • cut resubmittals from 2–3 → 0–1
  • shorten approvals by 3–6 months+

💰 Impact
That’s $100k–$400k in avoided carrying costs for developers and $10k–$25k in preserved fee margin per project for architecture teams.

👋 Backstory
Lin worked across 20+ U.S. public and private projects in planning and architecture, sitting on both sides of the table, and repeatedly hearing the same question from teams and clients: why does review take so long when the issues are so predictable?

George spent years building automation systems in robotics and AI, turning processes that took weeks of manual effort into scalable pipelines, cutting costs from $50k to $2k while keeping humans in the loop.

AutoSitu started from a shared realization: permit review isn’t slow because people aren’t trying, it’s slow because the same checks are repeated manually, at scale, with no early signal.

🎥 Launch Video: https://youtu.be/77ErS3Ja4Ho

🤝 Ask / CTA

If you’re an architecture/development team, we’d love to apply the same playbook from our successful deployments to your next submission, we’ll help you run AutoSitu end-to-end on a real plan set.

Reach us at founders@autositu.com or DM.
Visit us: https://autositu.com/

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Jobs at AutoSitu
San Francisco, CA, US / Remote (US)
$120K - $250K
1.00% - 3.00%
Any (new grads ok)
AutoSitu
Founded:2025
Batch:Winter 2026
Team Size:2
Status:
Active
Primary Partner:Gustaf Alstromer