421 E Washington Avenue
Sunnyvale, CA 94086
- 5 beds
- – baths
- 2,202 sqft
- 8,100 sqft lot
- $1,134 per sqft
- 1953 build
- – on site
Exceptional Development Opportunity for Owner-Users, Investors, Contractors, and Developers! Currently configured as a duplex, featuring a 2-bedroom, 1-bath unit and a 3-bedroom, 1-bath unit. This property sits on a generous 8,100 sq ft lot just minutes from vibrant downtown Sunnyvale. Enjoy proximity to excellent schools, parks, shopping, dining, Caltrain, major tech employers, and transportation hubs. Previously approved for subdivision into two separate lots, the property was in process to obtain permit to construct two brand-new single-family homes, each over 2,300 sq ft on its own lot. Please note that the original subdivision approval has expired; the new owner will need to reapply. Larger or more units possible with ADU and SB9. All information regarding lot size, square footage, and development potential is believed to be reliable but is not guaranteed. Buyers are strongly encouraged to conduct their own due diligence, including independent verification of square footage and development feasibility under current regulations.
Last checked:
As a licensed real estate brokerage, Estately has access to the same database professional Realtors use: the Multiple Listing Service (or MLS). That means we can display all the properties listed by other member brokerages of the local Association of Realtors—unless the seller has requested that the listing not be published or marketed online.
The MLS is widely considered to be the most authoritative, up-to-date, accurate, and complete source of real estate for-sale in the USA.
Estately updates this data as quickly as possible and shares as much information with our users as allowed by local rules. Estately can also email you updates when new homes come on the market that match your search, change price, or go under contract.
Checking…
•
Last updated Apr 22, 2025
•
MLS# ML81999947 —
The Building
-
Year Built:1953
-
Building Area Units:Square Feet
-
Green Energy Efficient:None
-
Building Area Total:2202
Interior
-
Flooring:Laminate
Room Dimensions
-
Living Area:2202
-
Living Area Units:Square Feet
The Property
-
Property Type:Residential Income
-
Property Subtype:Duplex
-
Exterior Features:Back Yard
-
Parcel Number:20904034
-
Zoning:R4
-
Lot Features:Level
-
Lot Size Area:0.19
-
Lot Size Acres:0.19
-
Lot Size SqFt:8100
-
Lot Size Units:Acres
-
Fencing:Fenced
Listing Agent
- Contact info:
- Agent phone:
- (408) 568-2889
Beds
-
Bedrooms Total:5
Heating & Cooling
-
Heating:Wall Furnace
-
Heating:true
-
Cooling:No Air Conditioning
-
Cooling:true
Schools
-
High School District:Fremont Union
The Community
-
Association:false
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Transit Score®
Provided by WalkScore® Inc.
Transit Score measures a location's access to public transit. It is based on nearby transit routes frequency, type of route (bus, rail, etc.), and distance to the nearest stop on the route. Transit Scores range from 0 (Minimal Transit) to 100 (Rider’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Sale history
| Date | Event | Source | Price | % Change |
|---|---|---|---|---|
|
3/28/25
Mar 28, 2025
|
Listed / Active | BRIDGE | $2,499,000 | 72.3% (9.0% / YR) |
|
3/7/17
Mar 7, 2017
|
BRIDGE | $1,450,000 | ||
|
2/1/17
Feb 1, 2017
|
Listed / Active | MLSLISTINGS |
