Commercial Real Estate Market in Sandwich, IL
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
22 active listings and 435 off-market properties in Sandwich, IL.
Market Trends
Sandwich, IL spans 41.4 square miles in DeKalb County, Illinois. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Sandwich, IL runs 21.3% across the Midwest region in 2025, up from 13.7% in 2019.
Vacancy Rate % in Midwest region
Retail
Retail vacancy in Sandwich, IL runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
Vacancy Rate % in Midwest region
Industrial
Industrial vacancy in Sandwich, IL 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 Sandwich, IL 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 73.5%
- Commercial 15.5%
- Industrial 9.3%
- Agricultural 1.8%
Largest Zones share of zoned land by district
One Family Residence District
One Family Residence District
Service Automotive And Wholesale Business District
General Manufacturing District
General Residence District
Sandwich, IL zones 2,922 acres across 17 districts. Commercial zoning covers 15.5% of zoned land, residential 73.5% and industrial 9.3%. The largest single district is One Family Residence District at 50.2%. For commercial buyers the practical constraint is that only 24.7% of land carries a commercial or industrial designation.
One Family Residence District (R-1)
The R-1 district is established to encourage the orderly transition of land from agricultural to low density residential use, to provide areas well suited for development from both a location and topographic standpoint, to meet market demands for large lots, and to prohibit any uses which are incompatible. The principal use of land is for single-family dwell…
Market overview
Demographics & Economy
Sandwich, IL has 12,019 residents in 4,649 households. Density runs 290 people per square mile. Median household income here is $83,774 and median gross rent $1,046 a month.
12,019
Population
4,649
Households
2.6
Avg Household Size
43
Median Age
21%
College-Educated
93%
High-School Grad
41.4 sq mi
ZIP Area
290
Density / Sq Mi
$83,774
Median Household Income
$40,072
Median Earnings
$1,046
Median Rent
$240,000
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Somonauk | — | — |
| Millbrook | — | — |
| Little Rock | — | — |
| Millington | — | — |
Commercial property in Sandwich, IL asks $690/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in Sandwich?
Commercial property in Sandwich, IL asks an average of $690 per square foot.
What zoning applies to commercial property in Sandwich?
Sandwich, IL zones 2,922 acres across 17 districts, of which 15.5% is commercial and 9.3% industrial. The largest single district is One Family Residence District at 50.2% of zoned land. The R-1 district is established to encourage the orderly transition of land from agricultural to low density residential use, to provide areas well suited for development from both a location and topographic standpoint, to meet market demands for large lots, and to prohibit any uses which are incompatible. The principal use of land is for single-family dwell… Residential zoning covers 73.5% and open space 0%.
Where does Realmo's Sandwich market data come from?
Realmo compiles Sandwich, IL figures from 5 recent recorded sales, 19 active sale listings, 3 active lease listings, 435 tracked off-market properties, the current Sandwich zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 31 August 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 19 active for-sale and 3 active for-lease listings in Sandwich, IL. 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: 2,922 zoned acres across 17 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
