Complete Your Profile

The contact details listed below are missing from your profile and are required to proceed. You'll only need to enter these one time.

Share Feedback

US

Language and Region
Currency

View My Preferences

Log In

Advertise

Log In/Sign Up

Enter your email to login or create a free account

The username or password you entered is incorrect. Please try again. Remember passwords are case sensitive. If you forgot your password, click to reset it.

If you continue to see this message, your account may be locked due to too many failed attempts. Please contact Customer Support at 1-800-613-1303.

Email*

Email is required This value should be a valid email.

Password*

Password is required

Forgot Password? Remember Me

or continue with

By clicking the button, you agree to LoopNet's Terms of Use and Privacy Notice.

You must register your contact information to view secure information on this listing.

Error occurred with your registration, please try again.

That email address has already been registered. Please try another or click forgot password.

{{signup.invalidData.message}}

First Name*

First name is required

Last Name*

Last name is required

Email*

Email is required This value should be a valid email.

Password*

Password is required Password is too common or does not have at least 8 characters

Send me weekly updates on local market trends, useful tips and more.

or continue with

By clicking the button, you agree to LoopNet's
Terms of Use and Privacy Notice.

Thank you!
Your account has successfully been created.

Are you primarily looking to use LoopNet to...

FIND properties to lease or buy

LIST properties to lease or sell

This feature is unavailable at the moment.

We apologize, but the feature you are trying to access is currently unavailable. We are aware of this issue and our team is working hard to resolve the matter.

Please check back in a few minutes. We apologize for the inconvenience.

- LoopNet Team

Close

Share This Listing

Email*

Please enter a valid email address.

To send this property to multiple individuals, insert a semi-colon between each recipient's email address.

Message

962 characters remaining

Hmm, there seems to have been an error sending your message. Please try again.

Send me a copy

Your email has been sent.

Still interested?

Contact the brokers for more information about this property

321 Harrison Ave 9,787 SF of 4-Star Office Space Available in Boston, MA 02118

Office Spaces Massachusetts Boston 321 Harrison Ave, Boston, MA 02118

.mosaic-column{display:inline-block!important;height:100%!important;width:auto!important}.mosaic-tile i{display:none!important}.mosaic-tile img{height:100%!important;width:auto!important}

Save this listing!

Favorite this listing to get notified of price updates, new media and more

ALL AVAILABLE SPACE(1)

Display Rental Rate as

SPACE
SIZE
TERM
RENTAL RATE
SPACE USE
CONDITION
AVAILABLE

6th Floor
9,787 SF
Negotiable
Upon Request Upon Request Upon Request Upon Request
Office
Full Build-Out
Now

Office space on Harrison Avenue.

Sublease space available from current tenant
Mostly Open Floor Plan Layout
Established business community.

Fully Built-Out as Standard Office
Laboratory

321Harrison_Sublease-6thFl_4.11.25_(Low)

Space	Size	Term	Rental Rate	Space Use	Condition	Available
6th Floor	9,787 SF	Negotiable	Upon Request Upon Request Upon Request Upon Request	Office	Full Build-Out	Now

6th Floor

Size

9,787 SF

Term

Negotiable

Rental Rate

Upon Request Upon Request Upon Request Upon Request

Space Use

Office

Condition

Full Build-Out

Available

Now

6th Floor

Size	9,787 SF
Term	Negotiable
Rental Rate	Upon Request
Space Use	Office
Condition	Full Build-Out
Available	Now

Office space on Harrison Avenue.

Sublease space available from current tenant
Fully Built-Out as Standard Office
Mostly Open Floor Plan Layout
Laboratory
Established business community.

321Harrison_Sublease-6thFl_4.11.25_(Low)

FEATURES AND AMENITIES

Bio-Tech/ Lab Space
Controlled Access
Concierge
Fitness Center

Food Service
Security System
Signage

Skylights
Reception
Roof Terrace

Bicycle Storage
Outdoor Seating
On-Site Security Staff

PROPERTY FACTS

Building Type

Office

Year Built

2021

LoopNet Rating

4 Star

Building Height

11 Stories

Building Size

238,451 SF

Building Class

B

Typical Floor Size

21,264 SF

SELECT TENANTS

FLOOR
TENANT NAME
INDUSTRY

6th
Magnet Biomedicine
Professional, Scientific, and Technical Services

9th
Monte Rosa Therapeutics
Manufacturing

4th
New England Foundation for the Arts
Arts, Entertainment, and Recreation

8th
PepGen, Inc.
Professional, Scientific, and Technical Services

11th
Pyxis Oncology
Professional, Scientific, and Technical Services

6th
Stellaromics Inc. Boston MA
Professional, Scientific, and Technical Services

ATTACHMENTS

321Harrison_Sublease-6thFl_4.11.25__High_

1 1

AERIAL
MAP

321 Harrison Ave, Boston, MA - AERIAL map view - Image1

321 Harrison Ave, Boston, MA - AERIAL map view - Image2

321 Harrison Ave, Boston, MA - AERIAL map view - Image3

Walk Score®

Walker's Paradise (98)

Transit Score®

Rider's Paradise (100)

Bike Score®

Very Bikeable (73)

What is a Walk Score®, Transit Score® & Bike Score®?

Walk Score® measures the walkability of any address.

Transit Score® measures access to public transit.

Bike Score® measures bikeability of a location.

What is a Walk Score®

, Transit Score® & Bike Score?

Walk Score® measures the walkability

of any address. Transit Score®

measures access to public transit. Bike Score®

measures bikeability of a location.®

Learn How It Works Detailed Scores

(617) 439-6000

Still interested?

Contact the brokers for more information about this property

CONTACTS

McKenna Teague Repko
Lauren Drakeley
CBRE Inc.

Listing ID: 35481570
Date on Market: 4/14/2025
Last Updated:
Address: 321 Harrison Ave, Boston, MA 02118

More public record information on 321 Harrison Ave, Boston, MA 02118

The South End Boston Office Property at 321 Harrison Ave, Boston, MA 02118 is currently available. Contact CBRE Inc. for more information.

OFFICE PROPERTIES IN NEARBY NEIGHBORHOODS

Financial District Office Space
Back Bay Office Space
Malden Center Office Space
Coolidge Corner Office Space
South End Boston Office Space
Seaport Office Space
North Station Office Space
North Braintree Office Space
Fort Point Office Space
Leather District Office Space
Bank Square Office Space
Warrendale Office Space
Brookline Village Office Space
South Side Office Space
East Watertown Office Space

NEARBY LISTINGS

115 Federal St, Boston MA
50 Milk St, Boston MA
74 Middlesex Ave, Somerville MA
245 Main St, Cambridge MA
1 Broadway, Cambridge MA
1 1st Ave, Boston MA
810 Memorial Dr, Cambridge MA
80-96 Sherman St, Cambridge MA
200 Rivers Edge Dr, Medford MA
5-11 Drydock Ave, Boston MA
43 Thorndike St, Cambridge MA
1524 Dorchester Ave, Boston MA
40 Broad St, Boston MA
68 Harrison Ave, Boston MA
2 Granite Ave, Milton MA

1 of 11

VIDEOS

MATTERPORT 3D EXTERIOR

MATTERPORT 3D TOUR

PHOTOS

STREET VIEW STREET

MAP

321 Harrison Ave, Boston, MA for lease Primary Photo- Image 1 of 11 — Primary Photo

321 Harrison Ave, Boston, MA for lease Building Photo- Image 2 of 11 — Building Photo

321 Harrison Ave, Boston, MA for lease Building Photo- Image 3 of 11 — Building Photo

321 Harrison Ave, Boston, MA for lease Building Photo- Image 4 of 11 — Building Photo

321 Harrison Ave, Boston, MA for lease Lobby- Image 5 of 11 — Lobby

321 Harrison Ave, Boston, MA for lease Aerial- Image 6 of 11 — Aerial

321 Harrison Ave, Boston, MA for lease Aerial- Image 7 of 11 — Aerial

321 Harrison Ave, Boston, MA for lease Building Photo- Image 8 of 11 — Building Photo

321 Harrison Ave, Boston, MA for lease Aerial- Image 9 of 11 — Aerial

321 Harrison Ave, Boston, MA for lease Building Photo- Image 10 of 11 — Building Photo

1 of 1

AERIAL
MAP

Connect with us

© 2025 CoStar Group

The LoopNet service and information provided therein, while believed to be accurate, are provided "as is". LoopNet disclaims any and all representations, warranties, or guarantees of any kind.

About Us
Careers
Contact Us
Search
Find a Broker
Product Overview
Mobile
Terms of Use
Privacy Notice
Cookie Policy
Exercise Your Rights
Licensing

321 Harrison Ave

Presented by

(617) 439-6000 x

321 Harrison Ave

McKenna Teague Repko
(617) 439-6000

Lauren Drakeley
(617) 912-7000

Already a member? Log In

First Name*

First name is required

Last Name*

Last name is required

Email*

Email address is required

Valid email address is required This email address is already in use. Please Login or try a different email address.

Phone*

Valid phone number is required

Ext (optional)

Company (optional)

Please enter a company.

How much space do you need? (optional)

Select Size

Less than 1,000 SF 1,000 - 2,000 SF 2,000 - 4,000 SF 4,000 - 6,000 SF 6,000 - 10,000 SF 10,000 - 15,000 SF 15,000 - 25,000 SF 25,000 - 50,000 SF More than 50,000 SF Other

Message*

Message is required

{{getContactFormMessageFieldCharacterCount()}} out of 600

New to LoopNet? No problem. We'll automatically create a free account for you. By clicking the button, you agree to LoopNet's Terms of Use and Privacy Notice.

Hmm, there seems to have been an error sending your message. Please try again.

Thanks! Your message was sent.

Send another message

Share Listing

LinkedIn
Twitter
Facebook

Email
Copy Link
Print

Link copied

Your LoopNet account has been created!

Thank you for your feedback.

Please Share Your Feedback

We welcome any feedback on how we can improve LoopNet to better serve your needs.

X

{{ getErrorText(feedbackForm.starRating, "rating") }}

255 character limit ({{ remainingChars() }} charactercharacters remainingover)

{{ getErrorText(feedbackForm.msg, "rating") }}

{{ getErrorText(feedbackForm.fname, "first name") }}

{{ getErrorText(feedbackForm.lname, "last name") }}

{{ getErrorText(feedbackForm.phone, "phone number") }}

{{ getErrorText(feedbackForm.phonex, "phone extension") }}

{{ getErrorText(feedbackForm.email, "email address") }}

You can provide feedback any time using the Help button at the top of the page.