About Assumption Grotto
Assumption Grotto is a Catholic parish located at 13770 Gratiot Ave., Detroit, MI, 48205. Assumption Grotto was founded in 1929. The Assumption Grotto parish office answers at +13133720762.
Assumption of the Blessed Virgin Mary Church
The Assumption of the Blessed Virgin Mary Church is a Catholic church of the Archdiocese of Detroit located at 13770 Gratiot Avenue in Detroit, Michigan. It is commonly known as the Assumption Grotto Church. The church community was founded in the 1830s, and the present building completed in 1929, designated a Michigan State Historic Site in 1990 and listed on the National Register of Historic Places in 1991.
Where is Assumption Grotto located?
Assumption Grotto is located at 13770 Gratiot Ave., Detroit, MI, 48205. The building sits at coordinates 42.43319, -82.98131, placing it in Detroit, MI 48205.
Location is approximate — drawn from the public street address.
- Public parking 463 ft
- Public parking 466 ft
- Public parking 551 ft
- Customers parking 620 ft
- Public parking 702 ft
- Gratiot / Saratoga (SB) 558 ft
- Stop Position 571 ft
- Stop Position 604 ft
- Gratiot / Faircrest (NB) 623 ft
- Stop Position 666 ft
Nearby places drawn from OpenStreetMap, May 1, 2026.
The neighborhood around Assumption Grotto
The ZIP code 48205 area around Assumption Grotto is home to 31,816 residents with a median household income of $42,671 and a median age of 30.9 years, according to the US Census Bureau's 2022 American Community Survey 5-year estimates.
US Census Bureau, American Community Survey 2022 five-year estimates.
What to expect at a service at Assumption Grotto
Roman Catholic parishes follow a structured liturgy called the Mass, celebrated worldwide in the same order.
- Mass lasts about an hour and includes Scripture readings, a homily, hymns, and Holy Communion.
- Visitors are welcome. Only baptized Catholics in good standing receive Communion; others come forward with arms crossed for a blessing.
- Dress is modest but not formal — business casual is typical for Sunday Mass.
Generalized notes for first-time visitors. Individual parishes vary — when in doubt, ask a greeter at the door.
Churches sharing the architectural tradition of Assumption Grotto
5 other US churches in the Gothic Revival tradition are indexed in Churches List.
- Cathedral of Christ the King Atlanta, GA · est. 1939
- Sweetest Heart of Mary Detroit, MI
- St. Francis of Assisi New York, NY · est. 1892
- St. Mary Basilica Natchez, MS · est. 1882
- Most Blessed Sacrament Detroit, MI · est. 1915
Parishes in the same diocese as Assumption Grotto
Assumption Grotto shares an ecclesiastical jurisdiction with 5 other parishes indexed in Churches List.
- Most Blessed Sacrament Detroit, MI
- Saint Peter & Paul Jesuit Church Detroit, MI
- Immaculate Heart of Mary Lansing, MI
- Saint Charles Church Detroit, MI
- Saints Peter and Paul Detroit, MI
Churches founded the same year as Assumption Grotto
5 other churches with a documented founding year of 1929 are indexed in Churches List.
- Immanuel Presbyterian Church Los Angeles, CA
- Holy Trinity New York, NY
- All Saints Episcopal Church Phoenix, AZ
- Church of Christ in Clear Lake Houston, TX
- Church of the Atonement Re Philadelphia, PA
Your Sunday at Assumption Grotto
Assumption Grotto by the numbers
Questions and answers about Assumption Grotto
- What denomination is Assumption Grotto?
- This parish is part of the Catholic tradition.
- Where is Assumption Grotto located?
- The parish is located at 13770 Gratiot Ave., Detroit, MI, 48205.
- When was Assumption Grotto founded?
- Founded in 1929.
- What is the architecture of Assumption Grotto?
- Assumption Grotto is a Gothic Revival building.
Photographs of Assumption Grotto
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Photographs via Wikimedia Commons. Click through for author and licence.
Visitor notes about Assumption Grotto
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