Welcome to Union 18

Inspired by the eclectic, retro style found throughout Seattle's Capitol Hill and Central District, Union 18 combines modern functionality with a classic, vintage aesthetic. The '60s-era architecture offers spacious layouts with large bedrooms and living rooms that you won't find in most of today’s new construction. From studios on up to three-bedroom layouts, the upgraded apartment homes at Union 18 were built to fit any lifestyle.

Union 18


1140 18th Ave Seattle, WA 98122

Must-Have Amenities

Life at Union 18 comes with extra spaces, both indoors and outdoors, for both work and play. Our community amenities include:

  • Open-air courtyard lounge with BBQs
  • Fitness center with core equipment
  • Pet wash and grooming station
  • Controlled-access bike storage

Visit our Amenities page for a full list of our community benefits.


Fully Upgraded Interiors

Every apartment home at Union 18 has been recently renovated to offer the latest in contemporary features and finishes. Come home to:

  • Chef-style kitchens with subway tile backsplash and under-cabinet lighting
  • Full-size stainless steel kitchen appliances, plus in-home laundry
  • Modern plank flooring and broadloom carpets
  • Large private patio or balcony

Visit our Floor Plans page to view a full list of home features.


Extra-Centrally Located

Situated right where two of Seattle’s favorite neighborhoods meet (Capitol Hill + the Central District), you’ll enjoy the best of both worlds: Amazing dining options, nightlife and pubs, parks on parks, and boundless culture and history.

Residents at Union 18 enjoy living in a walkable, bike-friendly neighborhood with plentiful public transportation options to quickly connect you to the rest of Seattle (and beyond).




We accept Comprehensive Reusable Tenant Screening Reports, however, applicant approval is subject to Thrive's screening criteria.