Commercial Real Estate Market in Old Greenwich, CT
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
4 active listings and 69 off-market properties in Old Greenwich, CT.
Market Trends
Old Greenwich, CT spans 2.3 square miles in Fairfield County, Connecticut. Figures below refresh monthly; last updated 31 August 2026.
Office
Office space in Old Greenwich, CT asks $187/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 Old Greenwich, CT asks $189/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 Old Greenwich, 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 Old Greenwich, CT asks $229/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
Market overview
Demographics & Economy
Old Greenwich, CT has 7,720 residents in 2,897 households. Density runs 3,405 people per square mile. Median household income here is $227,727 and median gross rent $3,501 a month.
7,720
Population
2,897
Households
2.7
Avg Household Size
42
Median Age
83%
College-Educated
99%
High-School Grad
2.3 sq mi
ZIP Area
3,405
Density / Sq Mi
$227,727
Median Household Income
$119,659
Median Earnings
$3,501
Median Rent
$1,579,200
Median Home Value
Tools
Nearby Markets
Frequently Asked Questions
How much does it cost to lease commercial space in Old Greenwich?
Asking lease rates in Old Greenwich, CT average $55.30 per square foot per year.
Where does Realmo's Old Greenwich market data come from?
Realmo compiles Old Greenwich, CT figures from 5 recent recorded sales, 1 active sale listings, 3 active lease listings, 69 tracked off-market properties. Sale and lease figures refresh monthly; vacancy annually. Last updated 31 August 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 1 active for-sale and 3 active for-lease listings in Old Greenwich, 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.
- 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 Northeast region level, retail vacancy is reported at Northeast region level and industrial vacancy is reported at Northeast 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
