Commercial Real Estate Market in Killingworth, CT
Updated monthly: sale, lease, property records, location trend, and more… · Last update: September 30
29 active listings and 192 off-market properties in Killingworth, CT. Commercial property asks $224/SF to buy and $12.39/SF/Yr to lease.
Market Trends
Killingworth, CT spans 35.3 square miles in Middlesex County, Connecticut. Figures below refresh monthly; last updated 30 September 2026.
Office
Office vacancy in Killingworth, CT runs 19.9% across the Northeast region in 2025, up from 13.1% in 2019.
Vacancy Rate % in Northeast region
Retail
Retail vacancy in Killingworth, CT runs 6% across the Northeast region in 2025, little changed from 6% in 2019. Down from a 2020 peak of 7.1%.
Vacancy Rate % in Northeast region
Industrial
Industrial vacancy in Killingworth, 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 vacancy in Killingworth, CT runs 5.6% across the Northeast region in 2025, up from 4% in 2022.
Vacancy Rate % in Northeast region
Zoning & Land Use
Land Use Mix share of zoned land by category
- Residential 99.4%
- Commercial 0.6%
- Industrial 0%
Largest Zones share of zoned land by district
Residential
Commercial
Large Business Zone
Industrial
Killingworth, CT zones 22,985 acres across 4 districts. Commercial zoning covers 0.6% of zoned land, residential 99.4% and industrial 0%. The largest single district is Residential at 99.4%. For commercial buyers the practical constraint is that only 0.6% of land carries a commercial or industrial designation.
Market overview
Demographics & Economy
Killingworth, CT has 6,174 residents in 2,713 households. Density runs 175 people per square mile. Median household income here is $132,739.
6,174
Population
2,713
Households
2.3
Avg Household Size
51
Median Age
52%
College-Educated
99%
High-School Grad
35.3 sq mi
ZIP Area
175
Density / Sq Mi
$132,739
Median Household Income
$75,401
Median Earnings
$0
Median Rent
$388,500
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Chester | — | $16.50 |
| Haddam | — | $17.28 |
| Deep River | — | $12.39 |
| Guilford | — | $16.45 |
Commercial property in Killingworth, CT asks $224/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in Killingworth?
Commercial property in Killingworth, CT asks an average of $224 per square foot. The 5 most recent recorded sales traded at a median of $111/SF, so asking sits 102% above the achieved median.
How much does it cost to lease commercial space in Killingworth?
Asking lease rates in Killingworth, CT average $12.39 per square foot per year.
What zoning applies to commercial property in Killingworth?
Killingworth, CT zones 22,985 acres across 4 districts, of which 0.6% is commercial and 0% industrial. The largest single district is Residential at 99.4% of zoned land. Residential zoning covers 99.4% and open space 0%.
Where does Realmo's Killingworth market data come from?
Realmo compiles Killingworth, CT figures from 7 recent recorded sales, 17 active sale listings, 12 active lease listings, 192 tracked off-market properties, the current Killingworth zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 30 September 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 17 active for-sale and 12 active for-lease listings in Killingworth, 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: 22,985 zoned acres across 4 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
