Commercial Real Estate Market in Janesville, WI
Updated monthly: sale, lease, property records, location trend, and more… · Last update: October 31
39 active listings and 1,849 off-market properties in Janesville, WI.
Market Trends
Janesville, WI spans 178.6 square miles in Rock County, Wisconsin. Figures below refresh monthly; last updated 31 October 2026.
Office
Office vacancy in Janesville, WI runs 21.3% across the Midwest region in 2025, up from 13.7% in 2019.
Retail
Retail vacancy in Janesville, WI runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
Industrial
Industrial vacancy in Janesville, WI runs 4.9% across the Midwest region in 2025, up from 4.4% in 2019. Nearly 1.6x the 2022 low of 3.1%.
Multifamily
Multifamily vacancy in Janesville, WI runs 8% across the Midwest region in 2025, up from 6.5% in 2022.
Zoning & Land Use
Land Use Mix share of zoned land by category
- Residential 53.5%
- Industrial 21.5%
- Open space 11.4%
- Commercial 10.4%
- Civic 2%
- Agricultural 1.2%
Largest Zones share of zoned land by district
Janesville, WI zones 22,541 acres across 23 districts. Commercial zoning covers 10.4% of zoned land, residential 53.5%, open space 11.4% and industrial 21.5%. The largest single district is Single Family Residence District at 38.2%. For commercial buyers the practical constraint is that only 31.8% of land carries a commercial or industrial designation.
The R1 District is created to allow for low density residential areas with limited concentrations of two family dwellings allowed by conditional use permit, The R1 district is generally mapped in outlying urban parts of the City
Market overview
Demographics & Economy
Janesville, WI has 73,741 residents in 32,880 households. Density runs 413 people per square mile. Median household income here is $72,906 and median gross rent $1,034 a month.
Tools
Nearby Markets
Commercial property in Janesville, WI asks $117/SF. The 2 bordering markets run from $57/SF in Edgerton to $62/SF in Beloit, and the city sits above their $59/SF median.
Frequently Asked Questions
What is the median price per square foot for commercial property in Janesville?
How does Janesville compare to nearby markets on price?
What zoning applies to commercial property in Janesville?
Where does Realmo's Janesville market data come from?
Methodology & data sources
- Asking prices and medians
- There are 25 active for-sale and 14 active for-lease listings in Janesville, WI. The sale median is based on 7 of the for-sale listings that state a price per square foot; too few for-lease listings state a rent per square foot for a rent median. These are ASKING figures from live listings, not closed-transaction prices, and a figure resting on fewer than 10 listings says so where it is quoted.
- Vacancy rates
- Published per-sector market series, taken at the metro level where one exists and otherwise at the Census-region level — a chart reading "in <region> region" is a regional number, not this city's.
- Zoning and land use
- The current municipal zoning release: 22,541 zoned acres across 23 districts. Shares are of zoned land, so parcels the release leaves unclassified are excluded from the mix.
- Refresh
- The monthly aggregates close at the end of the previous month, so 31 October 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at Midwest region level, retail vacancy is reported at Midwest region level and industrial vacancy is reported at Midwest region level.
- Coverage
- Metrics below the 10-observation threshold fall back one geographic level. The geography used is named on each figure.
Compiled by the Realmo Data team · reviewed 31 October 2026 · How Realmo checks market page data · Report a data issue
