Search
Premier Office Space with Amenities
For Lease
Contact for pricing

21 Custom House Street, Boston, MA 02110

Office space with fitness center and conference center in Boston.

Space Size2,731 SF - 10,421 SF
Days on Market293

Property Features for 21 Custom House Street

General Information

Standard status Active
Size 2,731 SF - 10,421 SF
Property subtype Office

Spaces For Lease

at 21 Custom House Street Contact us

Entire 3rd

Size
10,421 SF
Type
Office Building
Term
Negotiable
Contact us

Entire 5th

Size
10,182 SF
Type
Office Building
Term
Negotiable
Contact us

Partial 6th

Size
2,731 SF
Type
Office Building
Term
Negotiable
Contact us
Listed By: Dave Martel
Source: Nmrk
Added: Nov 24, 2025 Changed: Sep 10 Last Checked: Sep 13 at 8:02AM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Dave Martel

Investment Insights

Based on property information with market context.

Located at 21 Custom House Street, this office space offers a premier address for business. The property includes access to an upcoming exclusive amenity space designed to cater to professional and personal needs. A state-of-the-art fitness center is planned for tenants. A new conference center will provide a sophisticated space to host meetings, conferences, and events. Parking garages with 24/7 security are available at both 20 and 21 Custom House Street.

Key Highlights

  • Premier business address in the heart of the city.
  • Exclusive tenant‑only amenity space coming soon.
  • State‑of‑the‑art fitness center for tenants.

Property Analytics

Unlock full access to Insights Subscribe to Realmo Intelligence
Open Analytics

Current Use

Smile Design Boston Dental Office Carol R Johnson ... Landscaping G F K ... Business Management Consultant Dr. Christine Lo, ... Dental Office EDENS - Boston Construction Company

Suggested Use

Top Pick HVAC Service Pet Grooming Service Clothing & Fashion Store Buffet Butcher Tanning Salon

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

NNN (Triple Net)
Lease Type

Location Intelligence

Trade Area within ½ mile

21,502
Businesses Nearby

Demographics for 02110, MA

2,921
Population
1,563
Households
1.9
Avg Household Size
49
Median Age
85%
College-Educated
99%
High-School Grad
0.2 sq mi
ZIP Area
14,605
Density / Sq Mi
$132,239
Median Household Income
$111,227
Median Earnings
$3,142
Median Rent
$1,104,700
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Lease Benchmarks for Boston, MA

$37.57 /SF/Yr
Avg Asking Price
$8–$96.43 /SF/Yr
Price Range
9,562 SF
Avg Space Size

Vacancy Rate% for Office in Boston, MA

9.1% 2019
12.4% 2020
10.8% 2021
12.5% 2022
15.1% 2023
17% 2024
18.2% 2025
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

Frequently Asked Questions

What type of property is this?
Office units - Office space with fitness center and conference center in Boston.
Where is this office units located?
The property is located at 21 Custom House Street Boston, MA.
What are key features of this property?
This property features: Premier business address in the heart of the city.; Exclusive tenant‑only amenity space coming soon.; State‑of‑the‑art fitness center for tenants.
More about this property
Thanks! Your message was sent.
Error! Your message wasn't sent.
Please enter your name
Please enter email
Please enter the email in the correct format
Please enter phone
Please enter the number in the correct format
Please enter message