Extra Space Storage - 3905 - Federal Way - 21st Ave

33620 21st Avenue Southwest , Federal Way WA, 98023

(833) 773-2603 Call Now!

Reserve a storage unit with Extra Space Storage - 3905 - Federal Way - 21st Ave

Book now to secure your storage unit.

See facility on map

Office Hours

Mon-Fri 09:30 AM - 06:00 PM
Sat 09:00 AM - 05:30 PM
Sun CLOSED -

Access Hours

Mon-Sun 06:00 AM - 10:00 PM

Facility Amenities

5 x 5 Small Unit

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $24.00_/month $24.00_/month Web Only Price
~~$26.00~~_/month

~~$26.00~~_/month

Continue
5 x 5 Small Unit

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $24.00_/month $24.00_/month Web Only Price
~~$26.00~~_/month

~~$26.00~~_/month

Continue
5 x 10 Small Unit

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 14 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 14 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $31.00_/month $31.00_/month Web Only Price
~~$33.00~~_/month

~~$33.00~~_/month

Continue
10 x 5 Small Unit

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $44.00_/month $44.00_/month Web Only Price
~~$46.00~~_/month

~~$46.00~~_/month

Continue
10 x 7 Medium Unit

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 14 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 14 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $41.00_/month $41.00_/month Web Only Price
~~$43.00~~_/month

~~$43.00~~_/month

Continue
10 x 10 Medium Unit

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 14 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 14 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $52.00_/month $52.00_/month Web Only Price
~~$55.00~~_/month

~~$55.00~~_/month

Continue
10 x 10 Medium Unit

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 14 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 14 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $77.00_/month $77.00_/month Web Only Price
~~$81.00~~_/month

~~$81.00~~_/month

Continue
10 x 15 Medium Unit

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $71.00_/month $71.00_/month Web Only Price
~~$75.00~~_/month

~~$75.00~~_/month

Continue
10 x 15 Medium Unit

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $116.00_/month $116.00_/month Web Only Price
~~$122.00~~_/month

~~$122.00~~_/month

Continue
10 x 15 Medium Unit

Drive Up Access

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $168.00_/month $168.00_/month Web Only Price
~~$177.00~~_/month

~~$177.00~~_/month

Continue
10 x 15 Medium Unit

Drive Up Access

Indoor

Enclosed
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $168.00_/month $168.00_/month Web Only Price
~~$177.00~~_/month

~~$177.00~~_/month

Continue
10 x 20 Large Unit

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $133.00_/month $133.00_/month Web Only Price
~~$140.00~~_/month

~~$140.00~~_/month

Continue
10 x 20 Large Unit

Drive Up Access

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $220.00_/month $220.00_/month Web Only Price
~~$231.00~~_/month

~~$231.00~~_/month

Continue
10 x 20 Large Unit

Drive Up Access

Indoor

Enclosed
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $220.00_/month $220.00_/month Web Only Price
~~$231.00~~_/month

~~$231.00~~_/month

Continue
10 x 25 Large Unit

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $185.00_/month $185.00_/month Web Only Price
~~$194.00~~_/month

~~$194.00~~_/month

Continue
10 x 30 Large Unit

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $116.00_/month $116.00_/month Web Only Price
~~$122.00~~_/month

~~$122.00~~_/month

Continue
10 x 30 Large Unit

Drive Up Access

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $367.00_/month $367.00_/month Web Only Price
~~$386.00~~_/month

~~$386.00~~_/month

Continue
10 x 30 Large Unit

Drive Up Access

Indoor

Enclosed
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $367.00_/month $367.00_/month Web Only Price
~~$386.00~~_/month

~~$386.00~~_/month

Continue
15 x 10 Medium Unit

Indoor

Elevator Access

Upper Floor
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 7 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $71.00_/month $71.00_/month Web Only Price
~~$75.00~~_/month

~~$75.00~~_/month

Continue
15 x 10 Medium Unit

Indoor

First Floor Access
Reserve FREE, No obligation to rent

Continue

Reserve this unit for FREE
LOCK in this unit rate. Month to month rentals. No deposit required.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

Move-in date is flexible upto 3 days. If you are not sure of the date you are moving in, choose an approximate date, you can change it later.

By clicking reserve now you agree to our terms of use

Web Only Price $116.00_/month $116.00_/month Web Only Price
~~$122.00~~_/month

~~$122.00~~_/month

Continue

LOWEST RATES AND PRICES GUARANTEED

5 x 10 Unit
Indoor

First Floor Access
(833) 773-2603 Call Now! Call now for availability

Reserve for FREE
10 x 5 Unit
Indoor

Elevator Access

Upper Floor
(833) 773-2603 Call Now! Call now for availability

Reserve for FREE
10 x 7 Unit
Indoor

First Floor Access
(833) 773-2603 Call Now! Call now for availability

Reserve for FREE
10 x 20 Unit
Indoor

First Floor Access
(833) 773-2603 Call Now! Call now for availability

Reserve for FREE
10 x 20 Unit
Indoor

Elevator Access

Upper Floor
(833) 773-2603 Call Now! Call now for availability

Reserve for FREE
10 x 30 Unit
Indoor

First Floor Access
(833) 773-2603 Call Now! Call now for availability

Reserve for FREE

LOWEST RATES AND PRICES GUARANTEED

Office Hours

Mon-Fri 09:30 AM - 06:00 PM
Sat 09:00 AM - 05:30 PM
Sun CLOSED -

Access Hours

Mon-Sun 06:00 AM - 10:00 PM

Facility Amenities

Customers Review

Michelle Schachere

July 02, 2025 - From SF

Great service! Brian is very friendly. I was able to get into my unit with no issues.
Loren Ellingson

January 24, 2025 - From SF

They have been great to work with and very helpful when I needed it. The paperwork literally took less than 10 minutes, and Shelby and Brian have been very helpful every time I need something and have to go into the office. The Units are clean and easily accessible, and a huge upgrade over the other storage units that I have used in the past. Would definitely recommend this facility!
Kristina

October 06, 2024 - From SF

They were awesome and fast and very efficient
Dillon tucker

March 28, 2024 - From SF

I had booked a reservation for a unit. Which i was promtly contacted about. I arrived and everything went smoothly. The only issue i would have is they dont mention that you have to pay 2 additional fees (insurance and lock) upon signing the contract. Like i can understand that this is preaty standard but they could have the pricing for both included in the advertisedment along with the unit prices where it says you have to pay a one time administration fee
Chuck

October 01, 2023 - From SF

Very affordable storage units and great costumer service
Kristen

June 05, 2023 - From SF

The move-in experience had some confusing and frustrating moments but overall this place is clean and affordable and they seem to keep up with methods to prevent theft.
Nina

January 30, 2023 - From SF

I am satisfied for this place. Recommend it for others
See more

All Sizes

5 x 5 (Small)

5 x 10 (Small)

10 x 10 (Medium)

10 x 15 (Medium)

10 x 20 (Large)

10 x 30 (Large)

All Sizes

5 x 10 (Enclosed)

10 x 10 (Enclosed)

20’ Parking

30’ Parking

Small RV

Large RV

Extra Space Storage - 3905 - Federal Way - 21st Ave

33620 21st Avenue Southwest , Federal Way WA, 98023

Reserve a storage unit with Extra Space Storage - 3905 - Federal Way - 21st Ave

Book now to secure your storage unit.

All Sizes

5 x 5 (Small)

5 x 10 (Small)

10 x 10 (Medium)

10 x 15 (Medium)

10 x 20 (Large)

10 x 30 (Large)

All Sizes

5 x 10 (Enclosed)

10 x 10 (Enclosed)

20’ Parking

30’ Parking

Small RV

Large RV

Indoor

Elevator Access

Upper Floor

Indoor

First Floor Access

Indoor

Elevator Access

Upper Floor

Indoor

First Floor Access

Indoor

Elevator Access

Upper Floor

Indoor

Elevator Access

Upper Floor

Indoor

First Floor Access

Indoor

Elevator Access

Upper Floor

Indoor

First Floor Access

Drive Up Access

Indoor

First Floor Access

Drive Up Access

Indoor

Enclosed

Indoor

First Floor Access

Drive Up Access

Indoor

First Floor Access

Drive Up Access

Indoor

Enclosed

Indoor

First Floor Access

Indoor

Elevator Access

Upper Floor

Drive Up Access

Indoor

First Floor Access

Drive Up Access

Indoor

Enclosed