Troy basement risk at a glance
| Basement Risk Index | 20 / 100 (MODERATE) |
| Metro rank | #87 of 116 |
| Homes built before 1960 | 11% |
| Peak building era | 1970s (32% of homes) |
| Median year built | 1977 |
| Median home value | $420,300 |
| Median household income | $120,045 |
| Owner-occupied | 73% |
| Neighborhoods analyzed | 22 |
Troy's score is modeled from U.S. Census housing data; no municipal flood records are integrated yet. The Basement Risk Index is built from U.S. Census housing data and documented flood records. See our full methodology.
When Troy was built
The housing stock in Troy peaked in the 1970s, when about 32% of today's homes were built. In total, 11% of Troy homes predate 1960. That matters because basements built before the 1960s typically lack the sump pumps, perimeter drain tile, and backwater valves that became standard later, leaving many on their original, aging clay drain tiles.
How basement risk varies inside Troy
We score 22 individual neighborhoods inside Troy. Of those, 0 fall in the high or very high band, 1 are elevated, and 21 are moderate or lower. Risk is rarely uniform across a city, so the most useful number is the one for your own block.
What this means for Troy homeowners
Troy scores in the moderate band, but moderate is not zero on clay soil. Prevention is cheap relative to a flooded basement, and a free check tells you what you are working with.
Why Troy homes face basement risk
Basement flooding in Troy is mostly a function of housing age and soil. Older homes were built with clay drain tiles that crack and clog over decades, and the dense clay across southeast Michigan holds water against foundations rather than letting it drain. Part of Troy sits on combined sewers or drains to a combined-overflow district, so on those blocks sewer backup, not just wall seepage, is the failure mode to plan for first.
How Troy compares
Troy's Index of 20 is below the metro Detroit median of 37. It ranks #87 of 116 communities region-wide.
Does insurance cover it?
Often not. Standard Michigan homeowners policies commonly exclude sewer backup and groundwater unless you carry a specific endorsement. Before the next storm, it is worth reading our guide on whether insurance covers basement flooding in Michigan and checking your declarations page.
What to do about it
- Lower risk is not zero risk on the region's clay soil, a free prevention check takes about 30 minutes.
- Watch for symptoms after storms; what you see at your own home matters more than any average.
- Maintain gutters and grading, the two cheapest protections any Michigan home has.
Hiring in Troy?
We keep public-record profiles of metro Detroit basement waterproofing contractors, drawn from their own listings and Michigan licensing records. No ratings and no pay-to-play, just the record. Browse the contractor records →
See Troy on the full metro Detroit Basement Risk Index map →