Custom software for real estate
We build bespoke tools that automate the models, data pulls, and reports your team maintains by hand.
If someone on your team rebuilds it every month, it can probably run on its own.
The workbook your decisions depend on, rebuilt as a tool the whole team opens in a browser. We find where it disagrees with itself along the way.
The report someone assembles every month, the numbers someone copies between systems. Software does it the same way every time.
Census, State Demographer forecasts, FRED, permits: fetched on a schedule, dated, and flagged when stale.
Buyer and renter segments, price points, and absorption pace, with ranges attached, for any site you choose.
One place for the numbers your team emails around, current every time someone opens it.
Calculators and data explorers to share with clients, city councils, or a conference audience.
Rural Homes Colorado ยท 2026
Their demand model, the thing that decides where they build, was a hand-maintained Excel workbook. We rebuilt it as a live tool their analysts open in a browser, that automatically pulls data from the Census and other sources.
An analyst draws a site on the map, enters the homes they plan to build, and sees how many households can afford each price, with worst and best cases from the Census margins of error.
More we've built
Either way, the software is built around how your team actually works. The difference is who owns it.
We scope the tool around your process and build it as a project. When it ships, the code is yours to run, change, or hand to your own developers.
Best when the workflow is specific to how your firm operates.
Sometimes what your firm needs would help other firms too. Then we build it with you as a product: you shape it from the first version, and Barn Swallow owns, hosts, and maintains it.
Best when the problem is one many firms share.
We suggest the subscription route when we think a tool would stand on its own as a product. The first conversation usually makes clear which one fits.
Bill Ray
Bill writes the software himself. He spent time building machine learning systems and data pipelines at companies like Kitware, Vaisala, and Seagate, before deciding the interesting problem was housing.
MS in Computer Science, UMass Amherst; MS in Real Estate and the Built Environment, University of Denver. While at DU, his teams won 2nd and 3rd nationally in the 2025 and 2024 NAHB Student Competitions. He has previously consulted at John Burns Research and Consulting.
So the person who scopes your tool understands the real estate behind it, and is also the one who writes the code.
Get in touch
Tell us about the workbook, the report, or the data someone pulls every month. Thirty minutes is usually enough to see whether software would help, and which way to build it.
Photo by Bill Ray
