ActivSpace | Office Spaces for Rent | 3400 Harbor Ave SW
3400 Harbor Ave SW, Seattle, WA 98126
Company Overview
ActivSpace is a privately held company specializing in flexible, private workspace and studio units designed for small business owners, entrepreneurs, artists, and craftspeople. Their facilities offer individually lockable units in a range of sizes, with all-inclusive pricing that covers utilities and building services. ActivSpace locations feature 24/7 access, on-site parking, transit connectivity, and a clean, well-maintained environment built to support hands-on work. With simple lease terms and no long-term commitments, ActivSpace provides an affordable alternative to traditional commercial space for creative professionals and growing businesses.
Property Overview
ActivSpace West Seattle is a multi-tenant studio and office building located at 3400 Harbor Avenue Southwest in Seattle, Washington. The five-story, 35,176 SF building offers private, lockable workspaces designed for small businesses, artists, freelancers, and creative entrepreneurs. ActivSpace has operated in Seattle for over 30 years and is a recipient of the City of Seattle Mayor’s Small Business Award for Excellence.
Individual units are private and fully customizable — tenants can paint, install flooring, hang shelving, and configure the space to suit their needs. Monthly rent includes basic utilities (electricity, water, and garbage). High-speed internet and PO boxes are available at additional cost. Each unit features baseboard heat, overhead lighting, electrical outlets, and a deadbolt lock.
Building amenities include 24/7/365 card-key access, security cameras, an elevator, restrooms with utility sinks on every floor, and on-site management. The property is pet friendly with leashes required in common areas. Off-street parking is available for tenants, with additional street parking at the curb.
The building sits on Harbor Avenue SW just north of the West Seattle Bridge, within walking distance of restaurants, cafes, Luna Park Cafe, and the Alki Trail. The location is served by King County Metro bus lines, and the King County Water Taxi is a short walk away, providing direct service to downtown Seattle. The Admiral District, Alki Beach, and California Avenue are all minutes away.
Higlights
- Private, lockable, fully customizable workspaces in a 5-story building
- Utilities included (electricity, water, garbage); internet available at additional cost
- 24/7/365 card-key access with security cameras and deadbolts on every unit
- Pet friendly; on-site management; restrooms with utility sinks on every floor
- Steps from the Alki Trail; short walk to the Water Taxi; King County Metro bus access
- 30+ year operator; City of Seattle Mayor’s Small Business Award recipient
Features
Local area map
Available spaces
| Space | Gallery | Size | Price | Price/sqft | Space Type |
|---|---|---|---|---|---|
|
Small Office
|
View | 100 SF | Contact for Pricing | Contact for Pricing | Office |
