Commercial Real Estate Market in New Castle, DE
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
87 active listings and 1,256 off-market properties in New Castle, DE. Commercial property asks $81/SF to buy and $13.19/SF/Yr to lease.
Market Trends
New Castle, DE spans 38.3 square miles in New Castle County, Delaware. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in New Castle, DE runs 20.2% across the South region in 2025, up from 14.4% in 2019.
Vacancy Rate % in South region
Retail
Retail vacancy in New Castle, DE runs 5.4% across the South region in 2025, down from 7% in 2020.
Vacancy Rate % in South region
Industrial
Industrial vacancy in New Castle, DE runs 7.9% across the South region in 2025, up from 6% in 2019. Nearly 2.3x the 2022 low of 3.5%.
Vacancy Rate % in South region
Multifamily
Multifamily vacancy in New Castle, DE runs 11.3% across the South region in 2025, up from 8.5% in 2022.
Vacancy Rate % in South region
Market overview
Demographics & Economy
New Castle, DE has 61,043 residents in 24,262 households. Density runs 1,594 people per square mile. Median household income here is $75,985 and median gross rent $1,282 a month.
61,043
Population
24,262
Households
2.5
Avg Household Size
39
Median Age
22%
College-Educated
89%
High-School Grad
38.3 sq mi
ZIP Area
1,594
Density / Sq Mi
$75,985
Median Household Income
$42,600
Median Earnings
$1,282
Median Rent
$242,600
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Minquadale | — | — |
| Newport | — | — |
| Pennsville | — | — |
| Deepwater | — | — |
Commercial property in New Castle, DE asks $81/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in New Castle?
Commercial property in New Castle, DE asks an average of $81 per square foot.
How much does it cost to lease commercial space in New Castle?
Asking lease rates in New Castle, DE average $13.19 per square foot per year.
Where does Realmo's New Castle market data come from?
Realmo compiles New Castle, DE figures from 26 active sale listings, 61 active lease listings, 1,256 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 26 active for-sale and 61 active for-lease listings in New Castle, DE. 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 South region level, retail vacancy is reported at South region level and industrial vacancy is reported at South 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
