Can you build a duplex in St. Louis, MO?
St. Louis has multiple residential districts including multiple-family districts, but the actual base use table and dimensional standards were not provided here. Feasibility will be highly district-specific.
Confidence: low · Last researched May 2026
Related questions
Are ADUs allowed in St. Louis, MO?
The city adopted Ordinance No. 72036 in July 2025 to define, permit, and regulate ADUs.
Are short-term rentals allowed in St. Louis, MO?
Short-term rentals are expressly regulated in Title 26, but the actual use regulations were not provided in the source excerpt.
What zoning districts are in St. Louis, MO?
St. Louis, MO includes districts such as A Single-Family Dwelling District, B Two-Family Dwelling District, C Multiple-Family Dwelling District, D Multiple-Family Dwelling District, E Multiple-Family Dwelling District, F Neighborhood Commercial District, G Local Commercial and Office District, H Area Commercial District.
Full investor analysis
The full St. Louis, MO report breaks down duplex and 2–4 unit feasibility by district, the approval path, and the density/dimensional limits that decide whether the numbers work. First town report is free.
Get the full St. Louis, MO report free →More about St. Louis, MO zoning
- Can you build an ADU in St. Louis, MO?→
- Are short-term rentals allowed in St. Louis, MO?→
- Is mixed-use development allowed in St. Louis, MO?→
This summary is AI-generated from public municipal sources and is not legal, engineering, or land-use advice. Always verify zoning with St. Louis, MO officials before making decisions.
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