Boston Office Rent Price & Sales Report

Highlights

  • The average rent for office space in Boston is $66.66 per square foot, 3.95% lower compared to the previous year.
  • The market’s vacancy rate stands at 13.77%, lower than the state average of Massachusetts, which is 16.54%.
  • 1,385,830 square feet is currently under construction.

2025 Office Space Rent & Sales

  • $66.66 2025 Avg. Asking Rent
  • -3.95% Y-o-Y Avg. Asking Rent Change
  • 13.77% 2025 Office Vacancy Rate
  • $566.2M2025 Total Office Sales
  • $268.02Avg. Sale Price/SF

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

Average asking rents for office space here stand at $66.66 per square foot. The local office market recorded an average vacancy rate of 13.77% in 2025, unchanged from 13.77% in 2024.

Office transactions in the local market in 2025 totaled a sales volume of $566.2M across 15 sales. These transactions commanded an average sale price per square foot of $268.02.

Boston, MA Office Asking Rents by Class

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

  • Avg. Asking Rent Class A & A+$75.27
  • Avg. Asking Rent Class B$30.39
  • Avg. Asking Rent Class C$23.37

For comparison, the average rent for Class A and A+ office space in Massachusetts was $75.27 per square foot. The state-wide average for Class B space was $30.39 per square foot, and Class C office spaces averaged $23.37 per square foot.

Boston, MA Office Indicators by Submarket

In 2025, the submarket with the lowest office vacancy rate in Boston was Boston - South End at 2.61%. Meanwhile, the highest office vacancy rate in the market was 35.67%, recorded in Brighton - Brookline.
Submarket Asking Rents Vacancy Rates
Cambridge $122.11 17.38%
Brighton - Brookline $82.50 35.67%
Boston - Charlestown $73.54 15.42%
Boston - Back Bay $68.54 11.03%
Boston - Seaport Innovation District $59.48 22.01%
Boston - Downtown $50.96 13.01%
Boston - Central Business District $50.84 10.85%
Boston - South End $36.19 2.61%
Data provided by Yardi Research

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2025 Office Sales Volume

  • $268.022025 Avg. Price per SF
  • -21.76%Y-o-Y Avg. PpSF Change
  • $566.2M2025 Office Sales Volume
  • 152025 Number of Transactions

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

Average sale prices for office space in this market recorded a -21.76% change in 2025 compared to the previous year.
Office transactions recorded in the market in 2025 averaged $268.02 per square foot. For comparison, the statewide Massachusetts average during the same time period stood at $171.73 per square foot, while the national average was $182.48 per square foot.

Boston, MA Sale Price per SF Trend

  • Boston Avg. Sale Price per SF in 2025$268.02
  • Massachusetts Avg. Sale Price per SF in 2025$171.73

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

The local office market recorded 15 deals in 2025, adding up to a yearly sales volume of $566.2M.

  • Boston, MA Total Office Sales Volume in 2025 $566.2M
  • Boston, MA Total Number of Office Sales Closed in 2025 15

What were the largest office building sales in Boston in 2025?

The market’s largest transaction last year was the sale of 99 High Street for $227,000,000 on 4/24/2025.
The next-highest sale was the transaction involving 399 Boylston Street, which traded for $125,000,000. The third-largest transaction was the sale of 343 Congress Street for $47,750,000.

Property name Address Date Price
99 High Street 99 High Street 4/24/2025 $227,000,000
399 Boylston Street 399 Boylston Street 11/4/2025 $125,000,000
343 Congress Street 343 Congress Street 4/28/2025 $47,750,000
One Bowdoin Square 15 New Chardon Street 7/18/2025 $28,000,000
226 Causeway Street 226 Causeway Street 9/4/2025 $24,000,000
Data provided by Yardi Research

2025 Office Construction in Boston, MA

  • Boston, MA Total SF completed in 2025 2,064,265
  • Boston, MA Total SF under construction in 2026 1,385,830

How much office space was built in Boston in 2025?

2,064,265 square feet of new office space was delivered across the market in the previous year. New construction included 5 properties, with an average new property size of 412,853 square feet.

Looking forward, development activity in 2026 is estimated to add 1,385,830 square feet of office space to the market in total.

What are the largest recent office completions in Boston?

The largest recent office completion here is One Post Office Square at 1,082,000 square feet, completed in 2023. The next largest completions are Harvard Enterprise Research Campus - One Milestone and One Milestone.

Office building Address SF Completed
Harvard Enterprise Research Campus - One Milestone 1 Milestone Street, 02134 526,931 2026
One Milestone 1 Milestone St, 02134 510,000 2026
2505-2565 Washington Street 2505-2565 Washington Street, 02119 92,000 2026
305 Western Avenue 305 Western Avenue, 02134 263,000 2025
55 Summer Street 55 Summer Street, 02111 149,800 2025
1001 Boylston Street 1001 Boylston Street, 02215 485,000 2024
2 Harbor 2 Harbor Street, 02210 418,824 2024
FORUM 60 Guest Street, 02135 354,751 2024
Allston Labworks 250 Western Avenue, 02135 277,682 2024
One Post Office Square 1 Post Office Square, 02110 1,082,000 2023
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.