The area around the center of Grand River-St Marys is primarily zoned R1 (residential). R1 — Single-Family Residential — Single-family residential housing.
Updated Oct 31, 2026 · Reflects the latest available zoning classification; updated periodically.R1 — Single-Family Residential — Single-family residential housing.
Near its center, Grand River-St Marys is primarily zoned R1 (residential). Zoning varies by parcel — search an address above for the exact classification.
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Search Grand River-St MarysZoning reflects the classification near the center of Grand River-St Marys; actual zoning varies parcel by parcel — search an address for its exact district. Source: City of Detroit open data. 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.