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Office Building Under Construction
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777 Congress Street, Boston, MA 02210

Newly planned office development offering leasing opportunities as construction begins in July 2026.

Space Size13,184 SF - 74,730 SF
Property Size650,000 SF
Days on Market94

Property Features for 777 Congress Street

General Information

Standard status Active
Size 13,184 SF - 74,730 SF
Property subtype Office

Building Details

Building Size 650,000 SF

Spaces For Lease

at 777 Congress Street Contact us

Level 10

Size
13,184 SF
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 11

Size
30,760 SF
Type
Office Building
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 12

Size
30,756 SF
Type
Office Building
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 2

Size
29,984 SF
Type
Lab
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 3

Size
73,540 SF
Type
Lab
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 4

Size
74,730 SF
Type
Lab
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 5

Size
74,687 SF
Type
Lab
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 6

Size
74,553 SF
Type
Lab
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 7

Size
72,974 SF
Type
Lab
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 8

Size
72,726 SF
Type
Lab
Term
Negotiable
Rate
Contact for pricing
Contact us

Level 9

Size
56,713 SF
Type
Lab
Term
Negotiable
Rate
Contact for pricing
Contact us
Listed By: Christopher Scott
Source: Lpc
Added: Jun 1 Changed: Aug 27 Last Checked: Sep 1 at 3:23PM

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 Christopher Scott

Investment Insights

Based on property information with market context.

This for-rent office building is currently in the early stages of development, with construction scheduled to commence July 2026. The property is being marketed as part of Seaport Circle, positioned for tenants looking to align with a new build timeline and a fresh delivery schedule.

Located at 777 Congress Street in Boston, the asset benefits from a central, urban setting typical of the city’s office market. As construction begins in mid-2026, prospective tenants and brokers can plan around upcoming availability and coordinate space planning with the project’s development milestones.

Given the property’s new-build timing, it may appeal to organizations seeking modern office accommodations and the flexibility of preparing for a future move-in window. Leasing teams can use this opportunity to evaluate how a new construction schedule fits their staffing plans, while investors and developers can assess demand for future office space within a high-visibility Boston address.

Key Highlights

  • Seaport Circle office development construction is scheduled to commence in July 2026
  • Newly planned office development offering leasing opportunities as construction begins

Property Analytics

Current Use

Office buildings

Suggested Use

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

24,086
Businesses Nearby

Demographics for 02210, MA

5,808
Population
5,227
Households
1.1
Avg Household Size
35
Median Age
93%
College-Educated
100%
High-School Grad
0.9 sq mi
ZIP Area
6,453
Density / Sq Mi
$178,833
Median Household Income
$121,855
Median Earnings
$3,501
Median Rent
$1,212,000
Median Home Value

Market

Lease Benchmarks for Boston, MA

$28.75 /SF/Yr
Avg Asking Price
$20–$32 /SF/Yr
Price Range
37,131 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
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Frequently Asked Questions

What type of property is this?
Office building - Newly planned office development offering leasing opportunities as construction begins in July 2026.
Where is this office building located?
The property is located at 777 Congress Street Boston, MA.
What are key features of this property?
This property features: Seaport Circle office development construction is scheduled to commence in July 2026; Newly planned office development offering leasing opportunities as construction begins
More about this property
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