Wilmington Office Rent Price & Sales Report

Highlights

  • The average rent for office space in Wilmington is $28.53 per square foot, 0.69% higher compared to the previous year.
  • The market’s vacancy rate stands at 19.07%, lower than the state average of Delaware, which is 25.02%.
  • Renting Class A/A+ office space here costs $30.06 per square foot, while Class B averages $23.49 and Class C stands at $25.38.

2025 Office Space Rent & Sales

  • $28.53 2025 Avg. Asking Rent
  • 0.69% Y-o-Y Avg. Asking Rent Change
  • 19.07% 2025 Office Vacancy Rate
  • $32.8M2025 Total Office Sales
  • $37.80Avg. Sale Price/SF

What is the average asking rent price for office space in Wilmington?

Average asking rents for office space here stand at $28.53 per square foot. The local office market recorded an average vacancy rate of 19.07% in 2025, unchanged from 19.07% in 2024.

Office transactions in the local market in 2025 totaled a sales volume of $32.8M across 5 sales. These transactions commanded an average sale price per square foot of $37.80.

Wilmington, DE Office Asking Rents by Class

What is the average office rent per square foot by property class in Wilmington?

  • Avg. Asking Rent Class A & A+$30.06
  • Avg. Asking Rent Class B$23.49
  • Avg. Asking Rent Class C$25.38

The average asking rent for Class A and A+ office space stood at $30.06 per square foot, indicating the best — and most expensive — that the market has to offer.
Class B space in Wilmington averaged $23.49 per square foot, while the average for Class C space was $25.38 per square foot.

What is the average office rent per square foot by property class in DE?

  • Avg. Asking Rent Class A & A+$30.18
  • Avg. Asking Rent Class B$24.37
  • Avg. Asking Rent Class C$13.90

For comparison, the average rent for Class A and A+ office space in Delaware was $30.18 per square foot. The state-wide average for Class B space was $24.37 per square foot, and Class C office spaces averaged $13.90 per square foot.

Wilmington, DE Office Indicators by Submarket

In 2025, the submarket with the lowest office vacancy rate in Wilmington was Wilmington - Suburban at 15.83%. Meanwhile, the highest office vacancy rate in the market was 31.04%, recorded in Newark - New Castle.
Submarket Asking Rents Vacancy Rates
Wilmington - Central $29.27 21.68%
Wilmington - Suburban $25.36 15.83%
Newark - New Castle $19.02 31.04%
Data provided by Yardi Research

Explore Top Office Markets in Delaware

2025 Office Sales Volume

  • $37.802025 Avg. Price per SF
  • $32.8M2025 Office Sales Volume
  • 52025 Number of Transactions

What is the average sale price per square foot for office space in Wilmington?

Average sale prices for office space in this market recorded a -51.42% change in 2025 compared to the previous year.
Office transactions recorded in the market in 2025 averaged $37.80 per square foot. For comparison, the statewide Delaware average during the same time period stood at $35.47 per square foot, while the national average was $182.48 per square foot.

Wilmington, DE Sale Price per SF Trend

  • Wilmington Avg. Sale Price per SF in 2025$37.80
  • Delaware Avg. Sale Price per SF in 2025$35.47

What was the total office sales volume in Wilmington in 2025?

The local office market recorded 5 deals in 2025, adding up to a yearly sales volume of $32.8M.

  • Wilmington, DE Total Office Sales Volume in 2025 $32.8M
  • Wilmington, DE Total Number of Office Sales Closed in 2025 5
Data provided by Yardi Research

2025 Office Construction in Wilmington, DE

  • Wilmington, DE Total SF completed in 2025 100,000

How much office space was built in Wilmington in 2025?

100,000 square feet of new office space was delivered across the market in the previous year. New construction included 1 properties, with an average new property size of 100,000 square feet.

What are the largest recent office completions in Wilmington?

The largest recent office completion here is Shipyard Center at 191,696 square feet, completed in 2000. The next largest completions are Star Building and Montchanin Corporate Center.

Office building Address SF Completed
Barley Mill - Walkers Mill 500 Dupont Field Blvd, 19807 105,303 2024
Montchanin Corporate Center 20 Montchanin Rd, 19807 131,546 2020
Star Building 123 Justison Street, 19801 149,308 2010
Limestone Shopping Center Limestone Shopping Center - 2060 Limestone Road, 19808 27,113 2008
2710 Centerville Road 2710 Centerville Road, 19808 58,591 2006
Orchard Commons 5570-5630 Kirkwood Highway, 19808 42,020 2004
Tall Oaks Business Park and Build To Suit Land 3700 Lancaster Pike, 19805 29,740 2004
1300 North Grant Avenue 1300 North Grant Avenue, 19806 46,488 2003
Shipyard Center 900-1095 Justison Street, 19801 191,696 2000
5305 Limestone Rd 5305 Limestone Rd, 19808 17,414 1998
Data provided by Yardi Research

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Disclaimer

All information on this page is based on city-level data that includes properties equal to or larger than 25,000 square feet.
Averages were calculated based on values dated between January 1st and December 31st 2025. Construction pipeline data represented herein is valid as of January 2026.

While every effort was made to ensure the accuracy of the data presented in this report, the information is provided “as is” and neither CommercialCafe nor Yardi Research Data can guarantee that the information provided is complete.