Modern Luxury In Downtown SUNNYVALEWelcome 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. It's 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. Concierge, 24hr gym, Internet access, Yoga, Cats allowed, Dogs allowed, Accessible, Elevator, Garage, Parking, Bbq/grill, Bike storage, Business center, Car charging, CC payments, Clubhouse, Conference room, Courtyard, Game room, Guest parking, Internet cafe, Key fob access, Lobby, Nest technology, Online portal, Package receiving, Shuffle board & Smoke-free community.
RentalSource last checked: April 15, 2026 · 6:00 AM ET
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Property Summary
Property Type:
Apartment
Rental Fee:
$3,537 - $4,251
Bedrooms:
1-2 beds
Bathrooms:
1-2 baths
Size:
Inquire
Pet Friendly:
Yes
Has Garage:
Yes
ID:
65081239
Property Amenities
• Garage
• Gas Range
• High-Speed Internet
• Pet Friendly
• Wheelchair Access
Community Features
• Bike Paths
• Controlled Access
• Clubhouse
• Courtyard
• Fitness Center
• Parking
• Storage
Unit Rates
Name
Beds
Baths
Sqft
Rent
Plan A
1
1
-
$3,537
Plan B
2
2
-
$4,101 - $4,251
Leasing Information
Pet deposit: $500. Pet limit: 2. Pet rent: $50. Pet restrictions: Breed Restrictions.
Additional Details
Apartments for rent in Sunnyvale for $3,537-$4,251 with 1-2 beds, 1-2 baths, pet friendly and located within The Flats Cityline at 300 W Washington Ave in Sunnyvale, CA 94086. The averaged rental price of $3,894 is 32.5% ($956) higher than the average rent of $2,938 for apartments in Sunnyvale, CA and 25.5% ($791) higher than the average rent of $3,103 for apartments in Santa Clara County. This apartment is in the Sunnyvale School District and the nearest schools are Ellis Elementary, Columbia Middle and Fremont High. The Flats Cityline was advertised by The Flats Cityline 6+ months ago and last updated on April 15, 2026 at 6:00 AM ET.
Affordability Calculator
Can I afford to live at 300 W Washington Ave?
Bedrooms
1 bedroom
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Move the slider to select the percentage of your monthly income you're comfortable spending on rent. Typically, it's advised to spend about 30% or less on housing.
Recommended income
$141,480 /year
With your chosen rent-to-income ratio, an annual income of $141,480 is recommended to comfortably afford this 1-bedroom rental priced at $3,537 per month.
