Commercial Real Estate Market in Sussex, WI
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
25 active listings and 313 off-market properties in Sussex, WI.
Market Trends
Sussex, WI spans 26.9 square miles in Waukesha County, Wisconsin. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Sussex, WI runs 21.3% across the Midwest region in 2025, up from 13.7% in 2019.
Vacancy Rate % in Midwest region
Retail
Retail vacancy in Sussex, WI runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
Vacancy Rate % in Midwest region
Industrial
Industrial vacancy in Sussex, 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%.
Vacancy Rate % in Midwest region
Multifamily
Multifamily vacancy in Sussex, WI runs 8% across the Midwest region in 2025, up from 6.5% in 2022.
Vacancy Rate % in Midwest region
Zoning & Land Use
Land Use Mix share of zoned land by category
- Residential 54.3%
- Open space 14.6%
- Mixed use 11.7%
- Commercial 8.5%
- Industrial 7.3%
- Civic 3.6%
- Agricultural 0.2%
Largest Zones share of zoned land by district
Single Family Residential District
Single Family Residential District
Single Family Residential District
Business Park District
Open Space Preservation District
Sussex, WI zones 4,208 acres across 22 districts. Commercial zoning covers 8.5% of zoned land, residential 54.3%, open space 14.6% and industrial 7.3%. The largest single district is Single Family Residential District at 12.8%. For commercial buyers the practical constraint is that only 15.8% of land carries a commercial or industrial designation.
Single Family Residential District (RS-3)
The Rs-3 Residential District is intended to provide for single family residential development at densities not exceeding 2.9 dwelling units per net acre, and served by municipal sewer and water facilities.
Market overview
Demographics & Economy
Sussex, WI has 19,657 residents in 7,856 households. Density runs 732 people per square mile. Median household income here is $116,042 and median gross rent $1,270 a month.
19,657
Population
7,856
Households
2.5
Avg Household Size
43
Median Age
45%
College-Educated
98%
High-School Grad
26.9 sq mi
ZIP Area
732
Density / Sq Mi
$116,042
Median Household Income
$60,356
Median Earnings
$1,270
Median Rent
$387,100
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Lisbon | — | — |
| Lannon | — | — |
| Merton | — | — |
| Pewaukee | — | $17.89 |
Commercial property in Sussex, WI asks $139/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in Sussex?
Commercial property in Sussex, WI asks an average of $139 per square foot.
What zoning applies to commercial property in Sussex?
Sussex, WI zones 4,208 acres across 22 districts, of which 8.5% is commercial and 7.3% industrial. The largest single district is Single Family Residential District at 12.8% of zoned land. The Rs-3 Residential District is intended to provide for single family residential development at densities not exceeding 2.9 dwelling units per net acre, and served by municipal sewer and water facilities. Residential zoning covers 54.3% and open space 14.6%.
Where does Realmo's Sussex market data come from?
Realmo compiles Sussex, WI figures from 7 recent recorded sales, 18 active sale listings, 7 active lease listings, 313 tracked off-market properties, the current Sussex zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 31 August 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 18 active for-sale and 7 active for-lease listings in Sussex, WI. These are ASKING figures from live listings, not closed-transaction prices, and a segment carried by a handful of listings reads as indicative rather than an average.
- 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: 4,208 zoned acres across 22 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 August 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 August 2026 · report a data issue
