What size storage unit do I need?

We offer a wide range of sizes to accommodate your storage needs, from 5’×5 ’ (25 square feet) to 10’×30 ’ (300 square feet).* 10’x10’ units can store items from a one-bedroom apartment or small office. 10’x15’ units can store items from a two-bedroom apartment or vehicles (motorcycles or ATVs). 10’x20’ units can store items from a three-bedroom house or vehicles (larger Sedan, SUV, or pickup). 10’x30’ units can store items from up to five-bedroom homes or vehicles (Boats or RV). Read through our size guide to see the storage unit sizes we offer and determine which one is right for you. You can also contact one of our store teammates—they’re trained to help you out. *Sizes are approximate.

What is self storage used for?

Storage units can be used for many purposes. In Boston, people use CubeSmart as a place to store seasonal items, as a temporary home for valuables while moving, during home renovations, or as a business storage solution to declutter offices and store inventory and equipment. No matter the reason, we have a variety of units to fit different needs.

What do you need to rent a storage unit in Boston Seaport Self Storage, Boston?

Rental agreement: Complete your rental agreement (online, over the phone, or in person). Payment: Make your first month’s payment for your storage unit as well as your one-time administrative fee. Insurance: We require insurance coverage for the items you store at CubeSmart. And we offer affordable, third-party insurance/protection plan options. If you are already covered, provide a copy of the declaration page at the time of rental. Identification: A state-issued ID card, driver’s license, passport, or military ID before moving in.

What’s the difference between office hours and access hours at Boston Seaport Self Storage of Boston?

Storage office hours are the hours that our office is open, and a store manager is available to assist you. Access hours indicate the time you have full access to your unit (no assistance needed). Please check with a store manager at your CubeSmart facility in Boston for specific office hours.

How much is a storage unit per month in Boston, MA?

The average cost of a storage unit in Boston is $300. Here's the average cost by storage unit size: The average cost of a small, 5'x5' storage unit in Boston is $128 per month. The average cost of a medium, 10'x10' storage unit in Boston is $281 per month. The average cost of a large, 10'x20' storage unit in Boston is $511 per month.

Storage Units at 380 E St, Boston, MA

4.9 | 590 Reviews

380 E St
Boston, MA 02127

New Customers: (844) 427-1409 (844) 607-0268 (844) 626-9282 (844) 698-6801

Current Customers: (617) 268-8900

Office Hours

Monday–Friday: 9:30 AM–6:00 PM
Saturday: 8:30 AM–5:00 PM
Sunday: Closed

Access Hours

Daily: 6:00 AM–10:00 PM

Services at This Facility

Our friendly store manager can provide more details about any of this facility’s available services. Amenities may vary by facility.

Third Party Insurance or Protection Plan Options Available Protect yourself against the unlikely loss or damage of your belongings with insurance.
Remote Access from App Open facility gates, doors, & elevators from the CubeSmart mobile app.
Online Payments Accepted: Log on to our website to pay your bill from the comfort of your own home.
Month-to-Month Leases Available: You're sure to appreciate the convenience of our month-to-month leases.
Bilingual Manager: Our team can communicate effectively with Spanish speakers. Se habla español!
Deliveries Accepted: Cut back on the amount of work you need to do by having items conveniently shipped to our facility.

Military Discounts: Enjoy perks for serving our country with our money-saving military discounts for active duty military at move-in.
SML Moving Crew Available: A little moving help goes a long way, and that's what you'll get with SML.
Boxes and Other Packing Supplies Available: All of the supplies you need for storing your belongings are right here.

About This Facility

Self Storage in Boston, Massachusetts

Located at 380 E Street in Boston, Massachusetts, Boston Seaport Self Storage provides convenient and accessible storage solutions designed to meet your specific needs. Whether you're located in the nearby residential areas of South Boston or driving in from downtown Boston, our facility offers a variety of storage unit options making it easy to find the right fit for your belongings. Additionally, we are centrally positioned near local demand hubs, such as the Seaport District, ensuring that your storage needs are met no matter your reason for visiting.

Explore our storage unit size guide to determine the storage unit that's best for you, whether you’re storing a few boxes or larger furniture items.

Storage Near South Boston and Local Hubs

Boston Seaport on E Street is perfectly situated to serve the vibrant community of South Boston along with prominent areas like the Seaport District. Surrounded by bustling economic drivers, including corporate offices, innovation centers, and universities such as Boston University and Northeastern University, this facility provides an ideal solution for busy professionals, university students, and apartment residents. For students needing summer storage or professionals relocating for work, we offer flexible month-to-month rentals and a wide variety of unit sizes. For active military members, our facility is also near Hanscom Air Force Base

If you’re new to the area or need tips for managing your storage efficiently, check out our moving and storage resources for helpful information.

Storage During a Move in Boston

Moving can be an overwhelming process, but our storage units are perfect for temporary use during apartment transitions, home renovations, or even downsizing. Are you between leases or transitioning into a new condo or apartment in the South End or along Dorchester Avenue? Our flexible options allow you to store your belongings until you’re ready to settle into your new home. Additionally, we carry packing supplies on-site, so you can quickly pick up boxes, tape, and other essentials.

Whether you’re relocating locally or from across the country, our location near key highways, including I-93 and the Massachusetts Turnpike, ensures you can easily access your storage unit as needed. Additionally, climate-controlled units are available for storing your belongings at a reasonable maintained temperature range. *

Business Storage in Boston

Boston’s thriving Seaport District and financial corridor are home to countless businesses, ranging from tech startups to established corporations. For these enterprises, Boston Seaport Self Storage offers tailored business storage solutions, including inventory management, office supply storage, or even seasonal items that clutter your workspace.

Rent a Storage Unit in Boston Today

Whether you’re moving, downsizing, or opening up space in your home or business, Boston Seaport Self Storage at 380 E Street in Boston is here to provide practical storage solutions. With flexible rental options at a central location, we’re equipped to meet your needs.

* Storage unit sizes are approximate and subject to availability. Temperature and humidity levels within any storage space, including climate-controlled spaces, may vary.

View Facility Details

Up to 40% Off & Second Month Free^†.

Lock in today’s online storage deal with a no-commitment reservation.

No credit card or payment required
Monthly lease; no annual contract
Switch sizes at your facility if needed

One-time $29 admin fee required, lock and protection plan fees may apply.

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