As of 2026, 1 of the 15 active building permits issued in Grand River-St Marys in the last 12 months is major or high-impact.
Updated Oct 30, 2026 · Refreshes about every 48 hours.Compared to the average Detroit neighborhood.
1 major or high-impact building permit was issued in Grand River-St Marys in the last 12 months and is still active. Search an address above to see what's planned on a specific block.
Grand River-St Marys has 15 building permits filed in the last 12 months, 1 of them high-impact. The map above shows where.
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Search Grand River-St MarysFigures cover the Grand River-St Marys neighborhood (the boundary outlined on the map), over the last 12 months, compared against the average Detroit neighborhood. Source: City of Detroit open data. Detroit’s permit data lists building permits that have been issued (2019 onward), with no status or expiration date: permits count as active for a year after issue (longer for large projects), and revisions to an existing permit are left out. Open data updates on a delay, so the most recent records may be incomplete. For general information only — not legal, financial, or real-estate advice.
Outline shows the Grand River-St Marys neighborhood. Search an address for block-level detail.