1. States
  2. /Wisconsin
  3. /Rock County
  4. /Janesville

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Showing latest year with year-over-year changes. Full permit history available with a paid plan. View plans →

Year

Insightsi

Construction activity in 2024 was up 268.3% from the prior year, with 302 housing units permitted.

  • •44% more units than the average Rock County town (210), suggesting faster-than-typical growth.
  • •Average unit valued at $193K — 26% below the Rock County average of $262K, indicating more affordable construction.
  • •78.5% of new units were multi-family (apartments, condos, duplexes).

Total Unitsi

302 ▲ 268.3%

2024

Total Valuei

$58.2M ▲ 132.2%

2024

Single-Familyi

21.5%

65 units

Multi-Familyi

78.5%

237 units

Janesville vs. Avg. Rock Co. Town (2024)i

JanesvilleAvg.Diff
Total Unitsi302210+44%
Total Valuei$58.2M$55.0M+6%
Single-Familyi65168-61%
Multi-Familyi23742+464%
Buildingsi81172-53%
Value / Uniti$193K$262K-26%

Housing Units Permittedi

Solid line is Janesville; dashed line is Rock County average.

Construction Valuei

Solid line is Janesville; dashed line is Rock County average.

Census BPS