The Flats Apartments

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The Flats in Sunnyvale, CA - Building Photo — Building Photo

The Flats in Sunnyvale, CA - Building Photo - Building Photo — Building Photo

The Flats in Sunnyvale, CA - Building Photo - Interior Photo — Interior Photo

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The Flats

300 W Washington Ave
Sunnyvale, CA 94086

Studio–3 Bedrooms
546–1,432Square Feet

About The Flats

Welcome to The Flats at CityLine, Sunnyvales 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 youll never want to leave. Schedule a tour today at our Caltrain CA apartments nearby and see your next beautiful home.

The Flats is located in the Downtown Sunnyvale Neighborhood and 94086 Zip code of Sunnyvale, CA.

Unique Features and Amenities

Ample storage space
Connected community - fiber internet ready
Controlled access community
Digital package concierge system
Dual Vanity in Master Bathroom
EV Charging Stations
Expansive, Open Floor Plans
Extra height ceilings in 5th floor units
Five separate amenity environments
Five-Burner Gas Range
Furnished Apartments Available*
High-Efficiency Central Heat and Air Conditioning
In-home, full-size, stacked washer and dryer
Kitchen island per plan
Nest thermostat
Outdoor play space for children
Private Balcony or Patio
Stainless steel Energy Star Whirlpool appliances
State-of-the-art fitness center and yoga studio
Tech-centric individual business studios
USB Outlets in Kitchen
Walk-in closet per plan
Wood grain style entry doors

See All Amenities

Property Contact Info

This property currently does not have availability listed on ApartmentHomeLiving.com. Sign up to get notified when it becomes available.Request Availability Alert

Floorplan Pricing and Availability

Studio
1 Bedrooms
2 Bedrooms
3 Bedrooms

Studio
PLAN S
Studio, 1 Bath, 546 sq ft

Model Gallery
Availability Details
Availability Date Unit Sq Ft
Unavailable PLAN S 546 sq ft
1 Bedroom
Sort by:
PLAN 1CD
$3,551
1 Bed, 1 Bath, 738 sq ft
Available Now
Model Gallery
Floorplans
Availability Details
Availability Date Unit Sq Ft
Available Now PLAN 1CD 738 sq ft
Apartment Model: PLAN 1CD1 Bedroom, 1 Bath, 738 sq ftAvailable Now
PLAN 1CD - Floorplan 1
PLAN 1A
From $4,044
1 Bed, 1 Bath, 747 sq ft
Available Now
Model Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft Property Map View Details
$4,044 Available Now 333-210 747 View Details Below
$4,219 Available Now 333-510 747 View Details Below
$4,044 October 20, 2025 333-412 747 View Details Below
Unit 333-210 Gallery
Property Map
Model Rent and Fees
Model Price Range
$4,044 - $4,219
Unit 333-510 Gallery
Property Map
Model Rent and Fees
Model Price Range
$4,044 - $4,219
Unit 333-412 Gallery
Property Map
Model Rent and Fees
Model Price Range
$4,044 - $4,219
Apartment Model: PLAN 1A1 Bedroom, 1 Bath, 747 sq ftAvailable Now
PLAN 1A - Floorplan 1
Apartment Unit: 333-210Apartment Model: PLAN 1A1 Bedroom, 1 Bath, 747 sq ftAvailable Now
Apartment Unit: 333-510Apartment Model: PLAN 1A1 Bedroom, 1 Bath, 747 sq ftAvailable Now
Apartment Unit: 333-412Apartment Model: PLAN 1A1 Bedroom, 1 Bath, 747 sq ftAvailable October 20, 2025
Plan A
$4,259
1 Bed, 1 Bath, 864 sq ft
Available Oct 7
Largest 1 BedroomThis is the largest 1 Bedroom at this Property
Model Gallery
Floorplans
Photos
Availability Details
Price Availability Date Unit Sq Ft Property Map
$4,259 October 7, 2025 345-503 864
Unit 345-503 Gallery
Property Map
Model Rent and Fees
Price
$4,259
Apartment Model: Plan A1 Bedroom, 1 Bath, 864 sq ftAvailable October 7, 2025
FloorplansPhotos
Plan A - Image 1
Plan A - Image 2
Plan A - Image 3
Plan A - Image 4
Plan A - Floorplan 5
Apartment Unit: 345-503Apartment Model: Plan A1 Bedroom, 1 Bath, 864 sq ftAvailable October 7, 2025
PLAN 1B
$3,924
1 Bed, 1 Bath, 762 sq ft
Available Nov 7
Cheapest 1 BedroomThis is the cheapest 1 Bedroom at this Property
Model Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft Property Map
$3,924 November 7, 2025 333-213 762
Unit 333-213 Gallery
Property Map
Model Rent and Fees
Price
$3,924
Apartment Model: PLAN 1B1 Bedroom, 1 Bath, 762 sq ftAvailable November 7, 2025
PLAN 1B - Floorplan 1
Apartment Unit: 333-213Apartment Model: PLAN 1B1 Bedroom, 1 Bath, 762 sq ftAvailable November 7, 2025
PLAN 1CD
1 Bed, 1 Bath, 796 sq ft

Model Gallery
Availability Details
Availability Date Unit Sq Ft
Unavailable PLAN 1CD 796 sq ft
Show Unavailable Floorplans
2 Bedrooms
Sort by:
PLAN 2AB
$5,167
2 Beds, 2 Baths, 1019 sq ft
Available Now
Model Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft Property Map
$5,167 Available Now 333-106 1019
Unit 333-106 Gallery
Property Map
Model Rent and Fees
Price
$5,167
Apartment Model: PLAN 2AB2 Bedroom, 2 Bath, 1019 sq ftAvailable Now
PLAN 2AB - Floorplan 1
Apartment Unit: 333-106Apartment Model: PLAN 2AB2 Bedroom, 2 Bath, 1019 sq ftAvailable Now
Plan C
$5,647
2 Beds, 2 Baths, 1218 sq ft
Available Now
Model Gallery
Floorplans
Photos
Availability Details
Price Availability Date Unit Sq Ft Property Map
$5,647 Available Now 350-227 1218
Unit 350-227 Gallery
Property Map
Model Rent and Fees
Price
$5,647
Apartment Model: Plan C2 Bedroom, 2 Bath, 1218 sq ftAvailable Now
FloorplansPhotos
Plan C - Image 1
Plan C - Image 2
Plan C - Image 3
Plan C - Image 4
Plan C - Floorplan 5
Apartment Unit: 350-227Apartment Model: Plan C2 Bedroom, 2 Bath, 1218 sq ftAvailable Now
Plan B
$4,937
2 Beds, 2 Baths, 1132 sq ft
Available Oct 29
Cheapest 2 BedroomThis is the cheapest 2 Bedroom at this Property
Model Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft Property Map
$4,937 October 29, 2025 345-310 1132
Unit 345-310 Gallery
Property Map
Model Rent and Fees
Price
$4,937
Apartment Model: Plan B2 Bedroom, 2 Bath, 1132 sq ftAvailable October 29, 2025
Plan B - Floorplan 1
Apartment Unit: 345-310Apartment Model: Plan B2 Bedroom, 2 Bath, 1132 sq ftAvailable October 29, 2025
PLAN 2C
2 Beds, 2 Baths, 1224 sq ft

Largest 2 BedroomThis is the largest 2 Bedroom at this Property
Model Gallery
Availability Details
Availability Date Unit Sq Ft
Unavailable PLAN 2C 1224 sq ft
Show Unavailable Floorplans
3 Bedrooms
PLAN 3A
3 Beds, 2 Baths, 1432 sq ft

Model Gallery
Availability Details
Availability Date Unit Sq Ft
Unavailable PLAN 3A 1432 sq ft
Plan D
3 Beds, 2.5 Baths, 1431 sq ft

Model Gallery
Availability Details
Availability Date Unit Sq Ft
Unavailable Plan D 1431 sq ft

Availability Date	Unit	Sq Ft
Unavailable	PLAN S	546 sq ft

Availability Date	Unit	Sq Ft
Available Now	PLAN 1CD	738 sq ft

Price	Availability Date	Unit	Sq Ft	View Details
$4,044	Available Now	333-210	747	View Details Below
$4,219	Available Now	333-510	747	View Details Below
$4,044	October 20, 2025	333-412	747	View Details Below

Price	Availability Date	Unit	Sq Ft	Property Map
$4,259	October 7, 2025	345-503	864

Price	Availability Date	Unit	Sq Ft	Property Map
$3,924	November 7, 2025	333-213	762

Availability Date	Unit	Sq Ft
Unavailable	PLAN 1CD	796 sq ft

Price	Availability Date	Unit	Sq Ft	Property Map
$5,167	Available Now	333-106	1019

Price	Availability Date	Unit	Sq Ft	Property Map
$5,647	Available Now	350-227	1218

Price	Availability Date	Unit	Sq Ft	Property Map
$4,937	October 29, 2025	345-310	1132

Availability Date	Unit	Sq Ft
Unavailable	PLAN 2C	1224 sq ft

Availability Date	Unit	Sq Ft
Unavailable	PLAN 3A	1432 sq ft

Availability Date	Unit	Sq Ft
Unavailable	Plan D	1431 sq ft

Price shown is base rent and may not include non-optional fees and utilities. View Fees and Policies for details. Price, availability, fees, and any applicable rent special are subject to change without notice.

Property Information

274 Units
5 Stories
Built in 2019

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Lease Terms

6 - 12 mo

Fees and Policies

Pet Policy and Fees

Cats

2 Pet Limit
$60 Monthly Pet Rent

| Restrictions: None

Dogs

2 Pet Limit
$60 Monthly Pet Rent

| Restrictions: None

Parking Info and Fees

Other

Features and Amenities

Unique Amenities

Ample storage space
Connected community - fiber internet ready
Controlled access community
Digital package concierge system
Dual Vanity in Master Bathroom
EV Charging Stations
Expansive, Open Floor Plans
Extra height ceilings in 5th floor units
Five separate amenity environments
Five-Burner Gas Range
Furnished Apartments Available*
High-Efficiency Central Heat and Air Conditioning
In-home, full-size, stacked washer and dryer
Kitchen island per plan
Nest thermostat
Outdoor play space for children
Private Balcony or Patio
Stainless steel Energy Star Whirlpool appliances
State-of-the-art fitness center and yoga studio
Tech-centric individual business studios
USB Outlets in Kitchen
Walk-in closet per plan
Wood grain style entry doors

Living Area Features

Walk In Closets

Hours and Contact Info

Open Now

Currently Closed

By Appointment

Monday	9:00 am–6:00 pm
Tuesday	9:00 am–6:00 pm
Wednesday	9:00 am–6:00 pm
Thursday	9:00 am–6:00 pm
Friday	9:00 am–6:00 pm
Saturday	9:00 am–6:00 pm
Sunday	9:00 am–6:00 pm

Getting Around

Walk Score®

92 / 100

Walker’s Paradise

Daily errands do not require a car

Bike Score®

86 / 100

Very Bikeable

Biking is convenient for most trips

Transit Score®

52 / 100

Good Transit

Many nearby public transportation options

Scores provided by Walk Score.

details

Renters Reviews and Ratings

4.8

17 Renters Reviews

ⓘ How is this Rating Determined?The property ratings on ApartmentHomeLiving.com are created using a 5-star scale that includes average renter review scores combined with building ratings to determine an overall blended property score.

Building ratings are based on a community’s features, including the building design, construction, exterior spaces, and amenities. To learn more about the CoStar Building Rating System, refer to our official guidelines here.

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1 2

Showing 1-12 of 17 Reviews

Verified Renter
March 15, 2022
Moving to The Flats has been everything I was hoping for when I sold my house. A beautiful and comfortable home, a secure environment for my family and lots of amenities I don't have to maintain myself.
Review from Apartments.com

Verified Renter
August 18, 2021
The Maintenance team at the Flats is an awesome team of service professionals that I have come across. They take pride in their work, follow through, clean up after the work is done, truly want to help create a good experience. People I feel worth mentioning are Noah and Randall who have consistently provided good to great service.
- Property Manager Responded
  August 30, 2021
  Thank you for the rating and kind words for our team! - SRG Residential Customer Care
Review from Apartments.com

Verified Renter
December 28, 2020
The Flats at Cityline is a great community conveniently located near dining, shopping and other activities. The community has been well planned and designed for the residents security. Each area has communal areas that enhance the living experience while maintaining a quiet comfortable living space. The experienced staff is always available to assist with all aspects of the community experience from move-in support to daily needs.
Review from Apartments.com

Verified Renter
December 7, 2020
Overall its been a pleasant two years here at The Flats. Office staff is very pleasant and helpful. A huge shout out to Noe from Facilities who is always ready to take on any requests that come his way and always has a smile and is ready to help!
Review from Apartments.com

Verified Renter
November 2, 2020
Nice community nice management and staff as well as neighbors. Pet friendly.
Review from Apartments.com

Verified Renter
August 4, 2020
Love living here! Outstanding response to requests! Outstanding maintenance! Great location!
Review from Apartments.com

Verified Renter
August 4, 2020
Great location, great staff. The apartments are well maintained and the floorplan options worked perfectly for us. Right next to downtown Sunnyvale.
Review from Apartments.com

Verified Renter
July 21, 2020
I requested maintenance on The Flat web site about my AC can't regulate the room temperature, and they reply to me right away.After reset from main control not success , they email me to arrange appointment to enter my apartment and repair on the same day.I am satisfied with the quick response and repairing problem. Thank you
- Property Manager Responded
  July 31, 2020
  The maintenance team was happy to help, and we're glad you're feeling more comfortable. Thank you for the review! - SRG Residential Customer Care
Review from Apartments.com

I would give 10 stars if possible!!
July 17, 2020
We already knew their downtown location near historical Murphy Street would be great for our family, but we truly feel The Flats Cityline has a dream team in the office that's a primary reason it's such a fantastic place to live!! Trevar and Molly promptly and professionally answered all of our questions and convinced us this community was a perfect match for our needs. They created a super smooth move-in process, the unit is absolutely gorgeous and our beautiful building is impeccably ...
maintained. Repair request was quick and easy, and maintenance staff was friendly, fast and efficient. Neighbors are respectful and kind, and it's exciting to watch the downtown landscapes being reimagined. We count our blessings every day that we found The Flats but especially for all the incredible people in the office & staff who really make living here a dream come true -- Thank you Trevar, Molly and Flats Team!!!!!! We LOVE it here!!!!
- Property Manager Responded
  July 20, 2020
  We LOVE that you have joined us Julie! It is an exciting time in our corner of Sunnyvale, and we are so glad you get to watch it unfold with us. THANK YOU! - SRG Residential Customer Care
Read More
Review from Apartments.com

Worst experience! Avoid this place!!!
June 12, 2020
I have lived in the flats of Cityline for one year, and this is the worst experience I ever had. There are construction works all around the building (350 and 345 W McKinely Ave) which is VERY noisy and lots of dust. It starts as early as 7 am and lasts all day long. It is expected to last for a few years as I heard from the workers. Also construction works are on going on the ground floor of all the three buildings and it is extremely noisy. Besides, when we moved out we hired some professionals ...
to clean the apt and made it very clean. But still the flats charged us $300 cleaning fee +$200 painting fee +$150 carpet cleaning fee (and our apartment doesn’t even have a carpet at all!) The locker screen was always broken during the time we lived in there, so we had to go outside of the building to pick up our deliveries. Our packages are also always sent to another building because the delivery people can’t enter our building when the locker is broken. So, make sure to avoid this terrible place!
- Property Manager Responded
  June 23, 2020
  We never want anyone leaving us with negative feelings, and we apologize. Our team spoke with you about your move out charges, and we are here to help if you have any further questions. We do have to charge departing residents for certain items, including damage. If you need more information on what was charged, you can reach us at 408-253-5287 or mailto:TheFlats@Sares-Regis.com. Our community is in the heart of Sunnyvale, where a lot of exciting growth and new developments are happening. Our team makes sure to communicate about activity around the community with prospective residents, and there is also information about construction in our lease. Construction ends daily at 5 PM, so our residents can have a relaxing evening. We did offer alternatives for relocation within the community, and we are sorry if this was ever disruptive.We wish we could have done more, and we want to thank you for your time with us. We wish you all the best. - SRG Residential Customer Care ...
  (CustomerCare@sares-regis.com)
Read More
Review from Apartments.com

Verified Renter
June 2, 2020
Excellent location. Excellent management. Love the place! Very happy with everything! Highly recommend!
- Property Manager Responded
  June 5, 2020
  THANK YOU so much for the recommendation! - SRG Residential Customer Care
Review from Apartments.com

Verified Renter
April 10, 2020
Nice place wonderful location and the managment do a great job
Review from Apartments.com

Nearby Schools

Bishop Elementary

Sunnyvale

450 North Sunnyvale Avenue

Public School - Grades K-5 (452 Students)

In Attendance Zone2 minute drive / 0.9 miles away

Fremont High

Fremont Union High

575 W. Fremont Ave.

Public School - Grades 9-12 (2171 Students)

In Attendance Zone4 minute drive / 1.6 miles away

Columbia Middle

Sunnyvale

739 Morse Avenue

Public School - Grades 6-8 (587 Students)

In Attendance Zone4 minute drive / 1.4 miles away

School data provided by GreatSchools.

Points of Interest

Time and distance from The Flats.

Big Box and Retail

Lowe's

811 E Arques Ave

3 minute drive / 1.08 miles away

Safeway

639-643 S Bernardo Ave

4 minute drive / 1.62 miles away

Petsmart

770 E El Camino Real

5 minute drive / 1.78 miles away

Groceries

Sprouts Farmers Market

111 E El Camino Real

2 minute drive / 0.86 miles away

Safeway

639-643 S Bernardo Ave

4 minute drive / 1.62 miles away

Whole Foods

2732 Augustine Dr

6 minute drive / 2.97 miles away

The Flats has 4 parks within 12.8 miles, including Rosicrucian Park, Plaza de Cesar Chavez, Kelley Park, and Almaden Lake Park.

The Flats has 5 shopping centers within 0.9 miles.

Rental Price Ranges in the Area

Bedroom	Average Rent	Cheapest Rent	Highest Rent
Sunnyvale Studio Apartments	$2,993	$1,652	$3,980
Sunnyvale 1 Bedroom Apartments	$3,596	$1,805	$8,565
Sunnyvale 2 Bedroom Apartments	$4,512	$2,130	$10,000+
Sunnyvale 3 Bedroom Apartments	$5,494	$2,650	$10,000+
Sunnyvale 4 Bedroom Apartments	$7,337	$5,345	$10,000+