Township brief
Oak Park Township, measured.
11,237 residential parcels on the official record. Median home built 1916. 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.
11,237Homes on the county recordAssessor
1916Median year builtAssessor
1,920Homes with a roof permit on file (17.1%)County permits
9,000–9,500Homes 25+ yrs old with no roof permit on fileDerived · estimate
The stock
What Oak Park's housing is made of.
97.1% of Oak Park's homes predate 1980. 88.0% carry asphalt-shingle roofs, 28.3% are masonry-walled (not a siding market), and 96.8% have a full or partial basement. 92.6% are owner-occupied.
Flood exposure: 0 homes sit in a FEMA Special Flood Hazard Area, while 374 (3.3%) carry a First Street flood factor of 5+ — water risk beyond the mapped floodplain.
The read for contractors
The 9,000–9,500 homes at 25+ years with no roof permit on file are where Oak Park's replacement cycle is furthest along — that cohort, minus fresh permits, is the campaign surface.
Stock profileAssessor · county permits
Re-roof waves
Oak Park's permit history has a shape.
Roof permits in Oak Park 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 |
|---|---|
| 2021 | 482 |
| 2020 | 433 |
| 2024 | 390 |
Want Oak Park scored neighborhood by neighborhood?
This page is the township-level read. The Territory X-Ray ranks every Oak Park neighborhood on the full model — roof age and size, storm cohort, permit suppression, ownership — with the first campaign chosen.
Request a Oak Park Territory X-Ray