Township brief
Lake Township, measured.
142,560 residential parcels on the official record. Median home built 1944. Every figure below is computed from the county assessor's file, county roof permits, FEMA + First Street flood layers — aggregate only, and never a claim about any specific property.
142,560Homes on the county recordAssessor
1944Median year builtAssessor
1,593Homes with a roof permit on file (1.1%)County permits
138,500–139,000Homes 25+ yrs old with no roof permit on fileDerived · estimate
The stock
What Lake's housing is made of.
96.7% of Lake's homes predate 1980. 92.2% carry asphalt-shingle roofs, 56.3% are masonry-walled (not a siding market), and 78.9% have a full or partial basement. 81.2% are owner-occupied.
Flood exposure: 0 homes sit in a FEMA Special Flood Hazard Area, while 18,687 (13.1%) carry a First Street flood factor of 5+ — water risk beyond the mapped floodplain.
The read for contractors
The 138,500–139,000 homes at 25+ years with no roof permit on file are where Lake's replacement cycle is furthest along — that cohort, minus fresh permits, is the campaign surface.
Stock profileAssessor · county permits
Re-roof waves
Lake's permit history has a shape.
Roof permits in Lake cluster into waves — the county file shows the biggest recent years to the right. Homes that didn't replace during a wave are aging on the same clock as the neighbors that did.
The read for contractors
Campaign the non-replacers inside a past wave's footprint — demand that already proved itself once tends to prove itself again.
Biggest recent permit yearsCounty roof permits
| Year | Roof permits |
|---|---|
| 2025 | 586 |
| 2024 | 465 |
| 2022 | 347 |
Want Lake scored neighborhood by neighborhood?
This page is the township-level read. The Territory X-Ray ranks every Lake neighborhood on the full model — roof age and size, storm cohort, permit suppression, ownership — with the first campaign chosen.
Request a Lake Territory X-Ray