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Class A Office in Financial District
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99 Summer St, Boston, MA

Modern office space with amenities and transit access in Boston.

Space Size1,439 SF - 14,827 SF
Lot Size1.92 Acres
Days on Market315

Property Features for 99 Summer St

General Information

Standard status Active
Size 1,439 SF - 14,827 SF
Lot size 1.92 Acres
Property subtype OFFICE

Spaces For Lease

at 99 Summer St Contact us
Name Size Type Rate Availability
99 Summer St 2,856 SF OFFICE Contact for pricing AVAILABLE, 30 Days Contact us
99 Summer St 13,731 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 4,589 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 5,620 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 14,759 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 13,148 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 6,175 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 1,439 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 2,025 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 3,510 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 11,930 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 6,071 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 4,346 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 14,827 SF OFFICE Contact for pricing AVAILABLE, Now Contact us
99 Summer St 9,851 SF OFFICE Contact for pricing AVAILABLE, On Available Date Contact us
99 Summer St 5,021 SF OFFICE Contact for pricing AVAILABLE, On Available Date Contact us
99 Summer St 14,580 SF OFFICE Contact for pricing AVAILABLE, On Available Date Contact us
99 Summer St 11,072 SF OFFICE Contact for pricing AVAILABLE, On Available Date Contact us
Listing Agency: JLL | Boston
Listed By: Roger Breslin · License #MA:9506637
Source: Moodyscre
Added: Nov 25, 2025 Changed: Oct 2 Last Checked: Oct 5 at 8:04PM

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 JLL | Boston

Investment Insights

Based on property information with market context.

Located in the heart of Boston's Financial District, 99 Summer Street is a Class A office building offering 273,000 square feet of space. The building provides a modern interpretation of tenant and communal interiors, appealing to a variety of companies while acknowledging the Financial District's history and architectural aesthetic. The property features a newly reimagined lobby with a five-story, light-filled atrium (2020), an expansive conference and amenity center, and an on-site, tenant-only fitness center. Retail and dining options are abundant, including an on-site Italian grab-and-go cafe. The building provides 24-hour security, on-site parking, and bike storage. Direct transit access is available, with the property located one block from South Station and within walking distance of the Downtown Crossing, Chinatown, and Park Street T Stations. The available space is 4,689 square feet.

Key Highlights

  • Class A office building in Boston's Financial District.
  • Direct transit access to multiple T stations (South Station, Downtown Crossing, Chinatown, and Park Street).
  • Newly reimagined lobby with a five‑story, light‑filled atrium (2020).

Property Analytics

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Open Analytics

Current Use

CannonDesign Architecture Firm Dewberry Engineering Consultant Datto (Bike/Boat/Book/etc) Store Peloton Consulting Group Business Management Consultant Metropolitan Construction Co Construction Company

Suggested Use

Top Pick Law Firm HVAC Service Real Estate Agency Skin Care Clinic Auto Parts Store Computer & Electronic Repair

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

22,825
Businesses Nearby
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Lease Benchmarks for Boston, MA

$31.17 /SF/Yr
Avg Asking Price
$20–$55 /SF/Yr
Price Range
44,720 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 - Modern office space with amenities and transit access in Boston.
Where is this office building located?
The property is located at 99 Summer St Boston, MA.
What are key features of this property?
This property features: Class A office building in Boston's Financial District.; Direct transit access to multiple T stations (South Station, Downtown Crossing, Chinatown, and Park Street).; Newly reimagined lobby with a **five‑story, light‑filled atrium (2020)**.
(617) 531-4146 Call to check price and availability
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