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Iowa City report: single-family lot creation collapses; roughly 1,250-unit shortfall projected by 2050
Summary
City planning staff reported a steep drop in single-family lot creation in 2025 and told commissioners that recent permit trends would produce about 7,850 units by 2050—leaving an estimated deficit in the neighborhood of 1,250 units compared with plan projections.
Olivia Ziegler, a planning intern with the Neighborhood and Development Services Department, told the commission that subdivision activity in 2025 "dropped well below average with sharp declines across all housing types, especially single family lots, which fell 93% below the 5 year average as no new single family lots were platted." Ziegler said the city issued 177 building permits in 2025 and that combined with three demolition permits produced a net increase of about 174 dwelling units for the year.
Using projections in the forthcoming comprehensive-plan update and a 2050 horizon, staff presented two related figures: one slide projected about 7,850 units would be developed between 2025 and 2050 based on recent trends, and the plan projects demand of about 9,0989,100 units in that period. Ziegler summarized that recent trends would satisfy roughly 86% of that demand, leaving a deficit the presentation described as about 1,250 units. The presentation noted many vacant single-family lots have remained undeveloped for decades because of site constraints and that, if permit activity increases, the current three-year supply of single-family lots would be consumed much faster.
