Search for other storage facilities near this one.

Risk-free Reservation & Express Check-In

Lock in your low rate. There's no risk - easily cancel or change your reservation at any time.

modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

3503 B StreetPhiladelphia, PA 19134(512) 361-1686

About modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

Welcome to modSTORAGE (ex-21st Century Storage) in Philadelphia, nestled between Fishtown and historic Kensington. We're soon upgrading to the NOKE by Janus system for unmatched security. Perfect for locals and businesses, our climate-controlled units cater to all storage needs.

Enjoy our amazingly low web rates, underscoring our commitment to affordable storage. We stand out with flexible payment options and a customer-first approach. Our loyalty program offers extra value for our long-term patrons.

Situated minutes from Fishtown and Kensington, discover why we're Philadelphia's top choice for storage. Secure, convenient, reliable - come experience the difference with us.

Visit near B St and E Allegheny Ave, by the Delaware River, for your clutter-free journey."

Loading…

Facility Amenities

Access

Electronic gate access
Handcarts available

Administration

Admin fee: $24.00
Spanish speaking managers
Accepts mail/packages for tenants
On site office at facility

Moving

Truck rental available
Moving supplies for sale

Security Features

Video cameras on site
Fenced & Lighted

Property Coverage

Insurance required
Insurance available
Protection plan required
Protection plan available
Homeowners/Renters insurance accepted

Discounts

10% Military discount (applies to active-duty, reserves, veterans only)
10% Senior discount
10% Student discount

Billing

Email billing available
Rent due on 1st of each month
Auto-pay available
Cash accepted
Checks accepted
Credit cards accepted: Visa, Mastercard, AMEX, Discover

Other

Paperwork can be done remotely

Office Hours

Sun	9:00 am - 4:00 pm
Mon	9:00 am - 6:00 pm
Tue	9:00 am - 6:00 pm
Wed	9:00 am - 6:00 pm
Thu	9:00 am - 6:00 pm
Fri	9:00 am - 6:00 pm
Sat	9:00 am - 5:00 pm

Access Hours

Sun	6:00 am - 4:00 pm
Mon	6:00 am - 6:00 pm
Tue	6:00 am - 6:00 pm
Wed	6:00 am - 6:00 pm
Thu	6:00 am - 6:00 pm
Fri	6:00 am - 6:00 pm
Sat	6:00 am - 5:00 pm

How it Works

1. Select your unit
2. Provide your details
We just need your name and contact information to reserve your unit
3. Express check-in
Check into this facility online, eliminating the need to fill out rental paperwork at the facility
4. Go straight to your unit
All you have to do on your move-in date is move items into your storage unit

Make a risk-free reservation to lock in your low rate.

No payment until move in. Easily cancel or change reservation online.

Available Units

Not sure what you'll need? Need help determining what are right for you? We can help!

5' x 5' Unit

Roll Up Door,
Climate Controlled,
Interior

$24.99per month

5' x 5' Unit

Roll Up Door,
Climate Controlled,
Interior

$28.99per month

5' x 5' Unit

Roll Up Door,
Climate Controlled,
Premium Location,
Interior

$30.99per month

5' x 7.5' Unit

Roll Up Door,
Climate Controlled,
Interior

$31.99per month

5' x 7.5' Unit

Roll Up Door,
Climate Controlled,
Interior

$32.99per month

4' x 10' Unit

Roll Up Door,
Climate Controlled,
Interior

3 left at$33.99per month

5' x 10' Unit

Roll Up Door,
Interior

$29.99per month

5' x 10' Unit

Roll Up Door,
Climate Controlled,
Interior

$34.99per month

5' x 10' Unit

Roll Up Door,
Climate Controlled,
Interior

$39.99per month

5' x 10' Unit

Roll Up Door,
Climate Controlled,
Premium Location,
Interior

$44.99per month

5' x 10' Unit

Roll Up Door,
Drive Up Access

3 left at$59.99per month

5' x 13' Unit

Roll Up Door,
Interior

1 left at$42.99per month

7.5' x 10' Unit

Roll Up Door,
Interior

1 left at$44.99per month

5' x 15' Unit

Roll Up Door,
Interior

$49.99per month

7.5' x 10' Unit

Roll Up Door,
Interior

$49.99per month

7.5' x 10' Unit

Roll Up Door,
Climate Controlled,
Interior

1 left at$54.99per month

7.5' x 10' Unit

Roll Up Door,
Climate Controlled,
Interior

$59.99per month

7.5' x 10' Unit

Roll Up Door,
Climate Controlled,
Premium Location,
Interior

3 left at$63.99per month

5' x 15' Unit

Roll Up Door,
Climate Controlled,
Premium Location,
Interior

1 left at$63.99per month

5' x 15' Unit

Roll Up Door,
Drive Up Access

1 left at$69.99per month

7.5' x 10' Unit

Roll Up Door,
Drive Up Access

1 left at$79.99per month

8' x 12' Unit

Roll Up Door,
Interior

1 left at$53.99per month

10' x 10' Unit

Roll Up Door,
Interior

1 left at$54.99per month

10' x 10' Unit

Roll Up Door,
Interior

$59.99per month

10' x 10' Unit

Roll Up Door,
Climate Controlled,
Interior

3 left at$64.99per month

10' x 10' Unit

Roll Up Door,
Climate Controlled,
Interior

$69.99per month

10' x 10' Unit

Roll Up Door,
Climate Controlled,
Premium Location,
Interior

$74.99per month

10' x 10' Unit

Roll Up Door,
Drive Up Access

2 left at$119.99per month

10' x 15' Unit

Roll Up Door,
Interior

3 left at$84.99per month

10' x 15' Unit

Roll Up Door,
Climate Controlled,
Interior

2 left at$84.99per month

10' x 15' Unit

Roll Up Door,
Climate Controlled,
Premium Location,
Interior

1 left at$94.99per month

10' x 15' Unit

Roll Up Door,
Drive Up Access

2 left at$289.99per month

10' x 22' Unit

Roll Up Door,
Premium Location,
Interior

1 left at$229.99per month

15' x 15' Unit

Roll Up Door,
Interior

1 left at$269.99per month

10' x 23' Unit

Roll Up Door,
Drive Up Access

1 left at$389.99per month

10' x 25' Unit

Roll Up Door,
Interior

1 left at$284.99per month

10' x 27' Unit

Roll Up Door,
Drive Up Access

1 left at$429.99per month

10' x 30' Unit

Roll Up Door,
Drive Up Access

$519.99per month

15' x 42' Unit

Roll Up Door,
Drive Up Access

1 left at$599.99per month

Customer Reviews of this Facility (20)

Great experience!

I am so pleased with my experience here at 21st Century! Millie was so patient and helpful in guiding me through both storage rental and U-Haul rental! She made the move in a big city more pleasant for this country girl! I would definitely use this facility again!!!

modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

Deb Barrt

Jul. 31, 2019

Price - 3/5

Paperwork - 3/5

Service - 3/5

Cleanliness - 3/5

The customer service was outstanding. I had my son with me and the general manager and clerk where very warm and extremely helpful with him while I was signing paper work. The facility is super clean and it's very convenient to gain access into your storage unit.

modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

Elizabeth Wardlaw

Jan. 5, 2016

Price - 4/5

Paperwork - 3/5

Service - 5/5

Cleanliness - 5/5

slum storage

First off 2 people that would there are just plain dishonest. Millie will lie through her teeth to get you to rent there. I was told that she would lock me into the rate for two years if I stay long term..... Yeah right. 6 months into it boom 1st increase.WITH NO NOTIFICATION. Now onto the idiot that is the Manager there all you hear from him for about 18 months is that they are working on fixing the leaks.. It's like a cave in the place on the lower level.... mold, slime cicles growing on the ceilings... how do they fix it???? Buckets.... who which the lovely class of people that rent there use for bathrooms. I have seen bowel movements in these buckets tgat stay there for weeks. Beware L&I have been notified and also the BBB.... crooked to the core.

modSTORAGE (ex-21CSS) - 3503 B ST - Philadelphia

Steve Blair

Aug. 1, 2015

Price - 1/5

Paperwork - 1/5

Service - 1/5

Cleanliness - 1/5