Commercial Real Estate Market in Seaford, DE
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
125 active listings and 660 off-market properties in Seaford, DE. Commercial property asks $254/SF to buy and $14.62/SF/Yr to lease.
Market Trends
Seaford, DE spans 84.0 square miles in Sussex County, Delaware. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Seaford, 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 Seaford, DE runs 5.4% across the South region in 2025, down from 7% in 2020.
Vacancy Rate % in South region
Industrial
Industrial vacancy in Seaford, 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 Seaford, DE runs 11.3% across the South region in 2025, up from 8.5% in 2022.
Vacancy Rate % in South region
Zoning & Land Use
Land Use Mix share of zoned land by category
- Residential 47.9%
- Commercial 34.1%
- Industrial 15.3%
- Civic 2.6%
Largest Zones share of zoned land by district
Highway Commercial
Low Density Residential
Medium Density Residential
Light Industrial
High Density Residential
Seaford, DE zones 2,938 acres across 10 districts. Commercial zoning covers 34.1% of zoned land, residential 47.9% and industrial 15.3%. The largest single district is Highway Commercial at 31.6%. For commercial buyers the practical constraint is that only 49.4% of land carries a commercial or industrial designation.
Light Industrial (M-1)
M-1 Light Industrial District ARTICLE 31 - M-1 LIGHT INDUSTRIAL DISTRICT [Amended on 05/13/2025 by Ordinance #2025-03] §15.31.1 Intent of Article. It is the purpose of this Article to encourage industrial development, which is free from offensive noise, vibration, smoke, odors, glare, hazards of fire or other objectionable effects. Industries which can meet…
Market overview
Demographics & Economy
Seaford, DE has 25,550 residents in 10,725 households. Density runs 304 people per square mile. Median household income here is $62,668 and median gross rent $1,131 a month.
25,550
Population
10,725
Households
2.4
Avg Household Size
42
Median Age
18%
College-Educated
84%
High-School Grad
84 sq mi
ZIP Area
304
Density / Sq Mi
$62,668
Median Household Income
$36,439
Median Earnings
$1,131
Median Rent
$254,300
Median Home Value
Tools
Lease vs Buy Breakeven
At $14.62/SF/Yr lease vs $254/SF buy → buying wins if held > 6.1 years.
At a 5.7% gross asking yield the payback reads short relative to leasing. Assumes 30% down at 6.5% fixed, 2% a year in taxes and upkeep, 3% appreciation, 5% opportunity cost, 2% closing plus 5% selling costs, and a 3% annual rent escalator.
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Blades | — | — |
| Bethel | — | — |
| Laurel | — | — |
| Bridgeville | — | $15.00 |
Commercial property in Seaford, DE asks $254/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in Seaford?
Commercial property in Seaford, DE asks an average of $254 per square foot.
How much does it cost to lease commercial space in Seaford?
Asking lease rates in Seaford, DE average $14.62 per square foot per year.
Is it cheaper to lease or buy commercial space in Seaford?
Buying beats leasing in Seaford, DE if the property is held longer than 6.1 years, comparing $14.62/SF/Yr asking rent with $254/SF asking price. The model assumes 30% down at 6.5% fixed, 2% of value per year in taxes and upkeep, 3% appreciation, 5% opportunity cost on the cash and a 3% annual rent escalator.
What zoning applies to commercial property in Seaford?
Seaford, DE zones 2,938 acres across 10 districts, of which 34.1% is commercial and 15.3% industrial. The largest single district is Highway Commercial at 31.6% of zoned land. Residential zoning covers 47.9% and open space 0%.
Where does Realmo's Seaford market data come from?
Realmo compiles Seaford, DE figures from 7 recent recorded sales, 89 active sale listings, 36 active lease listings, 660 tracked off-market properties, the current Seaford zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 31 August 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 89 active for-sale and 36 active for-lease listings in Seaford, 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.
- Zoning and land use
- The current municipal zoning release: 2,938 zoned acres across 10 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 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
