In a nutshell: you do not have to settle how the 90,000 was derived, because the destination it points at can be checked on its own. The Unified Housing Strategy puts Davidson County at about 388,000 households by 2034. Apply the strategy’s own 7 percent vacancy allowance and that requires roughly 417,000 housing units. The Census Bureau’s Vintage 2025 estimate counts 389,379 housing units standing as of July 1, 2025, which leaves about 27,800 to build over the next nine years. At the pace of the last five years, that is about two and a half years of construction. Every fact and forecast in that arithmetic is Metro’s own, and the only thing added is the most current official Census count. Which means there is room to take a breath, and to work on the problem together rather than on each other over it.
If the question is why the number keeps getting quoted as though none of that building happened, the answer is that no document says what year it counts from. I repeated the 90,000 myself before I ever asked. The strategy projects 892,000 residents by 2034 and calls that an increase of about 175,000, and the difference, 717,000, is roughly the residents Davidson County had in 2020. The baseline is 2020, reachable only by subtraction, which means every home built since already counts against the 90,000.
Metro's own studies already say what to do: do no harm to the people least able to absorb it, then aim at the shortage actually measured. Page 44 of the Unified Housing Strategy full report calls resident protections critical to mitigating displacement, and page 146 of the same report puts the shortage at the bottom of the income range rather than across the whole market. Part One works both through in detail. Neither step is my invention. Both are theirs, in print. The ask here is smaller than either, and it costs nothing: state the year the counting starts.
Take as much or as little of the detail as you want. The three pieces below run from a short count to the full working file.
Part One, More Homes Than Households. The count. Davidson County already has more housing units standing than the households Metro forecasts for 2034. Free to every reader.
Part Two, The Pattern and the Playbook. How the number kept its job after the count arrived. Eight published steps, one forecast the appendix itself calls more aggressive, and a demand input doubled in writing to restore a published total. Free to every reader.
Exhibit A, Behind the 90,000. The working file. Every lever isolated and tested one at a time against the county’s own data, the consultant’s feasibility sheet reproduced row by row, and the pages the claims trace to. For paid subscribers, who are the reason the arithmetic gets done.
If any figure in any of the three fails your replication, write me. The correction publishes in full.
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About Built to Think · Chris Remke, AIA [lic. ret.]
Built to Think is a working laboratory for civic sensemaking, founded by Chris Remke
It follows evidence across the full life cycle of place-building, from public promises and development rights through finance, design, construction, operations, market price, infrastructure, taxation, and neighborhood life. Built to Think follows not only what a decision says, but what it sets in motion.
Original text, analysis and tables © 2026 Chris Remke, Built to Think. Quotation with attribution and a link is welcome and encouraged. This file is provided for the personal use of the paid subscriber; republication in whole or in substantial part, in any medium, requires written permission. Government documents and figures reproduced here for purposes of review are cited in full and remain the property of their sources.
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