Reserve Now! Pricing and availability may change.

Extra Space Storage - 7888 - Mountlake Terrace - 70th Ave

22205 70th Avenue West, Mountlake Terrace, WA 98043
Rating Badge
4.5
(4)
Rating Badge
4.8
(445)
Online Move In Icon
Online Move-In AvailableRent online, skip the counter, and go straight to your space

Available Storage Units (31)

5x5

$0.88 / sqft
mini storage unit
Features
Heated OnlyUpstairs via ElevatorInterior

Flash Sale

$22.00
$25.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x5

$1.20 / sqft
mini storage unit
Features
Upstairs via ElevatorInterior
$30.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x5

$1.24 / sqft
mini storage unit
Features
Heated Only1st FloorInterior
$31.00
$35.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x5

$1.24 / sqft
mini storage unit
Features
Upstairs via ElevatorInterior
$31.00
$35.00
Reserve Now, Pay LaterYou will not be charged until move-in

6x6

$1.17 / sqft
small storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$42.00
$46.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x8

$1.13 / sqft
small storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$45.00
$50.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x10

$0.88 / sqft
small storage unit
Features
Upstairs via ElevatorInterior
$44.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x10

$1.06 / sqft
small storage unit
Features
Heated Only1st FloorInterior
$53.00
$59.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x10

$1.06 / sqft
small storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$53.00
$59.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x5

$1.06 / sqft
small storage unit
Features
Heated Only1st FloorInterior
$53.00
$59.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x5

$1.06 / sqft
small storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$53.00
$59.00
Reserve Now, Pay LaterYou will not be charged until move-in

7x10

$0.97 / sqft
small storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$68.00
$76.00
Reserve Now, Pay LaterYou will not be charged until move-in

8x10

$0.95 / sqft
medium storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$76.00
$84.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x8

$0.95 / sqft
medium storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$76.00
$84.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x10

$0.76 / sqft
medium storage unit
Features
Upstairs via ElevatorInterior
$76.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x10

$0.81 / sqft
medium storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$81.00
$90.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x10

$1.04 / sqft
medium storage unit
Features
Heated Only1st FloorInterior
$104.00
$115.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x12

$0.78 / sqft
medium storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$94.00
$104.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x13

$0.78 / sqft
medium storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$102.00
$113.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x15

$0.75 / sqft
medium storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$112.00
$123.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x15

$1.05 / sqft
medium storage unit
Features
Heated Only1st FloorInterior
$157.00
$174.00
Reserve Now, Pay LaterYou will not be charged until move-in

15x10

$1.05 / sqft
medium storage unit
Features
Heated Only1st FloorInterior
$157.00
$174.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x15

$1.85 / sqft
medium storage unit
Features
Heated OnlyDrive Up AccessOutdoor Access
$277.00
$306.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x20

$1.15 / sqft
medium storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$229.00
$253.00
Reserve Now, Pay LaterYou will not be charged until move-in

20x10

$1.17 / sqft
medium storage unit
Features
Heated Only1st FloorInterior
$233.00
$258.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x20

$1.17 / sqft
medium storage unit
Features
Heated Only1st FloorInterior
$233.00
$258.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x20

$1.72 / sqft
medium storage unit
Features
Heated OnlyDrive Up AccessOutdoor Access
$344.00
$374.00
Reserve Now, Pay LaterYou will not be charged until move-in

25x10

$1.09 / sqft
large storage unit
Features
Heated Only1st FloorInterior
$273.00
$302.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x25

$1.09 / sqft
large storage unit
Features
Heated Only1st FloorInterior
$273.00
$302.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x30

$1.09 / sqft
large storage unit
Features
Heated Only1st FloorInterior
$327.00
$357.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x30

$1.09 / sqft
large storage unit
Features
Heated OnlyUpstairs via ElevatorInterior
$327.00
$357.00
Reserve Now, Pay LaterYou will not be charged until move-in

Complete Amenities & Features

ACCESS

  • Electronic gate accessElectronic gate access
  • Is your facility parking lot or driveway large enough for an 18-wheel truck?Is your facility parking lot or driveway large enough for an 18-wheel truck?

SECURITY

  • Video cameras onsiteVideo cameras onsite
  • On site office at facilityOn site office at facility
  • Resident ManagerResident Manager

OFFICE HOURS
SundayClosed
Monday9:30 AM – 6:00 PM
Tuesday9:30 AM – 6:00 PM
Wednesday9:30 AM – 6:00 PM
Thursday9:30 AM – 6:00 PM
Friday9:30 AM – 6:00 PM
Saturday9:00 AM – 5:30 PM
ACCESS HOURS
Sunday6:00 AM – 10:00 PM
Monday6:00 AM – 10:00 PM
Tuesday6:00 AM – 10:00 PM
Wednesday6:00 AM – 10:00 PM
Thursday6:00 AM – 10:00 PM
Friday6:00 AM – 10:00 PM
Saturday6:00 AM – 10:00 PM

VEHICLE STORAGE REQUIREMENTS

  • Requires titleRequires title
  • Requires registrationRequires registration
  • Requires insuranceRequires insurance
  • Must be drivableMust be drivable

PROPERTY COVERAGE

  • Insurance requiredInsurance required
  • Insurance available for purchaseInsurance available for purchase
  • Protection plan requiredProtection plan required
  • Protection Plan available for purchaseProtection Plan available for purchase

PAYMENTS

  • CashCash
  • Credit cards acceptedCredit cards accepted
  • CheckCheck

BILLING

  • Automatic payments availableAutomatic payments available

MISCELLANEOUS

  • Moving supplies for saleMoving supplies for sale
  • Paperwork can be done remotelyPaperwork can be done remotely

Customer Reviews

4.5(4)
Verified (4)Google (445)

Clean Convenient Friendly

by Michell

January 15, 2023

5.0

Clean Convenient Friendly Price is right

Quick Access

by Immersive Nomad

March 28, 2025

4.5

When I arrived I inputted the access code and stored away my belongings in my unit with such ease and confidence. I highly recommend this service to anyone looking for a place to keep their property in a secure unit for the duration of their purchasing.

Very good value

by Ian

September 2, 2025

4.0

I appreciate the pricing of this facility and like the incentives they give to new customers. My only contention is that the app won’t open the gate or the door, so I’ve opted to just punching in my code.

Great So Far

by JMM

May 24, 2023

4.0

I really don’t like being asked to leave a review of any place right off the bat—I literally JUST moved my stuff into the unit yesterday. I’d like some time to see how things go first. Which is the only reason why I gave 4 stars instead of 5. That being said… so far the experience has been very good.👍 The whole place is very clean, very secure with redundant security measures (which I appreciate!) and the price for my size unit is very good. It’s in a decent neighborhood, no sketchy surroundings. They have carts available to use for no extra charge.👍 I was a little worried about the unit being on an upper floor, even with elevator access as I’ve got back issues and more. But with the carts and elevator I had zero problems. When I checked in with the manager (I believe her name is Rose) she was very friendly and very helpful. I liked the whole process of being able to find what I needed and do everything online without any hassle or gimmicks or tricks, including up front pricing AND being able to just go ahead and pay for the unit if you want to… or just reserve it so you can go take a look in person before pulling the trigger. The ONLY thing I’d recommend so far is that they give you a MAP of the building your unit is in. It’s like a maze inside with so many units per building and no signs indicating unit numbering. Other than that, my overall first impression is very good and worth leaving a preliminary review. If that should change… so will my review.

chip Handewith's profilechip Handewith
December 7, 2025

6 months ago my unit was broken into from a vacant unit next door. They cut through the metal wall! The manager Rose told me not to worry as they knew who did it and they no longer had access to the facility. And they had them on video. I said did you call the police or should I? She said she thought they did. So I called. The police showed up and we went back inside. All of a sudden Rose new nothing. I lost all of my out door gear skis boots tents backpacks, all of it. Today I go go my unit and the same unit next is wide open. I called and asked for it to be secured and was told they don't do that because people rent online and are granted access without ever seeing a person. Do not rent from the lying bunch of incompetent people.

Adele Freedman's profileAdele Freedman
February 26, 2026

I had my entire household of furniture and belongings in storage in two units with Extra Space Mount Lake Terrace for two years. Rose was wonderful to work with. She truly tried to help me keep prices in check and worked as an advocate for me. I just moved everything out of my storage units and was pleasantly surprised at how clean the units were. There were no obvious spider webs or dust bunnies floating around. The storage facility truly seems to be kept clean which is really nice. The only negative was that sometimes the door to the facility would break and NOT close which was a bit worrisome, but management always seemed to fix it. I recommend this location and was very happy with my experience.

Judy pearson's profileJudy pearson
December 10, 2025

This was a start of a good think then the rent went up alot also, on one unit. We had to move due to the fact that the city of Lynnwood was taking out place, eminent domain so the city can expand the water treatment plant. And the notice we got was when we sign papers is when we have to move out. So didn’t know for sure until it happened. So was not able to give the storage any time prior to moving out. So on Nov. 18 the took out 239.00 and on Nov. 20 we had the unit empty and cleaned. Went in and told them we had moved out. They will not prorate the unit cause they didn’t know ahead of time. I’ve never had an issue like this and I have rented many units. Rather I give them a heads up or not I’ve always have had it pro rated. Especially being two days. They are making a killing especially if they already rented it out. And still have a unit there that I still pay for. Gonna try and fight this . Will never rent again from them and looking to get my other unit cleaned out and moved. Unless they make it right.

Julie Meredith's profileJulie Meredith
February 23, 2026

My mother past away recently, and I needed to find a storage facility for some of her items. I reached out to a community group site for recommendations. Extra Space Storage came up with possitive feedback. Not disappointed.

Ann's profileAnn
February 23, 2026

Always helpful front desk, clean, secure, much better than other nearby facility options I have used, storage is pricey everywhere right now so with this place as least you get what you deserve out of your money! Highly recommend online reservations, it was a very easy process! But as I said front desk is super helpful as well so I’m sure all ins are easy too.

How to Rent a Storage Unit With Storage.com

There are two easy ways to secure a unit at this storage facility

1You can complete your rental process online today and go straight to your unit when you plan to move in.
2You can make a reservation today with no payment until you sign your lease at your move-in date.
How It Works
Search icon
Select your storage unit
Reserve icon
Reserve for free

Cancel or change your reservation at any time, risk-free

Move in icon
Move in