Commercial Real Estate Market in Darien, CT
Updated monthly: sale, lease, property records, location trend, and more… · Last update: September 30
18 active listings and 293 off-market properties in Darien, CT.
Market Trends
Darien, CT spans 12.7 square miles in Fairfield County, Connecticut. Figures below refresh monthly; last updated 30 September 2026.
Office
Office space in Darien, CT asks $223/SF to buy. Vacancy runs 19.9% across the Northeast region in 2025, up from 13.1% in 2019.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Retail
Retail space in Darien, CT asks $191/SF to buy. Vacancy runs 6% across the Northeast region in 2025, little changed from 6% in 2019. Down from a 2020 peak of 7.1%.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Industrial
Industrial vacancy in Darien, CT runs 7.6% across the Northeast region in 2025, up from 5.4% in 2019. Nearly 2.4x the 2021 low of 3.2%.
Vacancy Rate % in Northeast region
Multifamily
Multifamily space in Darien, CT asks $255/SF to buy. Vacancy runs 5.6% across the Northeast region in 2025, up from 4% in 2022.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Zoning & Land Use
Land Use Mix share of zoned land by category
- Residential 93.5%
- Commercial 5.2%
- Open space 1.3%
Largest Zones share of zoned land by district
One Family Residential 1 Acre
One Family Residential 2 Acre
One Family Residential 0.5 Acre
One Family Residential 0.3 Acre
One Family Residential 0.2 Acre
Darien, CT zones 8,263 acres across 17 districts. Commercial zoning covers 5.2% of zoned land, residential 93.5% and open space 1.3%. The largest single district is One Family Residential 1 Acre at 34.2%. For commercial buyers the practical constraint is that only 5.2% of land carries a commercial or industrial designation.
One Family Residential 1 Acre (R-1)
SECTION 400. R-2, R-1, R-1/2, R-1/3 AND R-1/5 RESIDENTIAL ZONES ..................................... IV-1 401. Background and Purposes .................................................................................................. IV-1 402. Permitted Principal Uses ..........................................................................................…
Market overview
Demographics & Economy
Darien, CT has 21,499 residents in 7,567 households. Density runs 1,699 people per square mile. Median household income here is $250,001 and median gross rent $3,501 a month.
21,499
Population
7,567
Households
2.8
Avg Household Size
39
Median Age
86%
College-Educated
98%
High-School Grad
12.7 sq mi
ZIP Area
1,699
Density / Sq Mi
$250,001
Median Household Income
$117,964
Median Earnings
$3,501
Median Rent
$1,728,400
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Stamford | — | $29.77 |
| New Canaan | — | $15.31 |
| Norwalk | — | $27.81 |
Commercial property in Darien, CT asks $1,054/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in Darien?
Commercial property in Darien, CT asks an average of $1,054 per square foot. The 5 most recent recorded sales traded at a median of $413/SF, so asking sits 156% above the achieved median. Multifamily carries the highest asking price at $255/SF.
What zoning applies to commercial property in Darien?
Darien, CT zones 8,263 acres across 17 districts, of which 5.2% is commercial and 0% industrial. The largest single district is One Family Residential 1 Acre at 34.2% of zoned land. SECTION 400. R-2, R-1, R-1/2, R-1/3 AND R-1/5 RESIDENTIAL ZONES ..................................... IV-1 401. Background and Purposes .................................................................................................. IV-1 402. Permitted Principal Uses ..........................................................................................… Residential zoning covers 93.5% and open space 1.3%.
Where does Realmo's Darien market data come from?
Realmo compiles Darien, CT figures from 5 recent recorded sales, 9 active sale listings, 9 active lease listings, 293 tracked off-market properties, the current Darien zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 30 September 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 9 active for-sale and 9 active for-lease listings in Darien, CT. 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: 8,263 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 30 September 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at Northeast region level, retail vacancy is reported at Northeast region level, industrial vacancy is reported at Northeast region level and asking prices run materially above recent closed pricing.
- 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 30 September 2026 · How Realmo checks market page data · Report a data issue
