The Flats

300 W. Washington Avenue, Sunnyvale, CA 94086

Welcome to The Flats at CityLine, Sunnyvale’s premier luxury living experience. The Flats offers 1, 2 and 3 bedroom apartments that feature tasteful design touches, inspired by a mix of both industrial and organic materials. The Flats offers spacious floor plan that boast the largest unit layouts in Sunnyvale. Its centralized location and impressive list of high-end amenities make The Flats an easy place to live and work from home, and one you’ll never want to leave. Schedule a tour today at our Caltrain CA apartments nearby and see your next beautiful home. View more Request your own private tour

Key Features

Eco Friendly / Green Living Features:


EV Car Chargers


Energy Star Appliances

This property has an EcoScoreTM of 2 based on it's sustainable and green living features below.

Building Type: Apartment

Last Updated: April 25, 2025, 4:16 a.m.

All Amenities

  • Property
  • Connected community - fiber internet ready
  • Ample parking in attached garage with elevator access
  • Controlled access community
  • Ample storage space
  • Unit
  • Five outdoor courtyards with kitchens, BBQs, fireplaces, and dining areas
  • In-home, full-size, stacked washer and dryer
  • High-efficiency central heat and air conditioning
  • Hardwood-style plank flooring throughout living area
  • Private balcony or patio
  • Kitchen
  • Five outdoor courtyards with kitchens, BBQs, fireplaces, and dining areas
  • Five-burner gas range
  • Quartz slab kitchen countertops with tile backsplash
  • Health & Wellness
  • Downtown location, adjacent to transit, shopping and car and bike sharing services
  • State-of-the-art fitness center and yoga studio
  • Stainless Steel Energy Star Whirlpool Appliances
  • Technology
  • Connected community - fiber internet ready
  • Pre-wired for high-speed internet providers including Comcast, AT&T, and Wave G
  • Security
  • Digital package concierge system
  • Green
  • EV charging stations
  • Stainless Steel Energy Star Whirlpool Appliances
  • Outdoor Amenities
  • Five outdoor courtyards with kitchens, BBQs, fireplaces, and dining areas
  • Parking
  • Ample parking in attached garage with elevator access

Other Amenities

  • Interactive and multifunctional leasing/social/activity center |
  • Tech-centric individual business studios |
  • Five separate amenity environments |
  • Outdoor play space for children |
  • Furnished Apartments Available* |
  • Expansive, open floor plans |
  • Wood grain style entry doors |
  • Kitchen island per plan |
  • Dual vanity in master bathroom |
  • Walk-in shower and lighted vanity mirrors in master bath |
  • Euro-style cabinetry with designer selected hardware |
  • Walk-in closet per plan |
  • Extra height ceilings in 5th floor units |
  • Nest thermostat |
  • USB outlets in Kitchen |

Available Units


Floorplan Beds/Baths Rent Track
PLAN 1A 1 Bed/1.0 Bath
0 sf
$4,194 - $7,165
Available Now
PLAN 1B 1 Bed/1.0 Bath
0 sf
$4,174 - $7,442
Available Now
PLAN 1CD 1 Bed/1.0 Bath
0 sf
$3,775 - $5,566
Available Now
PLAN 2AB 2 Bed/2.0 Bath
0 sf
$5,085 - $7,348
Available Now
PLAN 2C 2 Bed/2.0 Bath
0 sf
$5,179 - $7,774
Available Now
PLAN J 1 Bed/1.0 Bath
0 sf
$3,919 - $6,999
Available Now
PLAN S 0 Bed/1.0 Bath
0 sf
$3,721 - $6,086
Available Now
Plan A 1 Bed/1.0 Bath
0 sf
$3,945 - $6,461
Available Now
Plan B 2 Bed/2.0 Bath
0 sf
$4,661 - $7,969
Available Now
Plan C 2 Bed/2.0 Bath
0 sf
$5,409 - $8,542
Available Now
Plan D 3 Bed/2.5 Bath
0 sf
$6,425 - $10,000
Available Now