23 photos · MLS data verified October 16, 2026 · Updated every 15 min
$1,789,000
Active
3 Beds·2 Baths·1,670 sqft·5,784 sqft lot·Built 1957
421 W 39th Ave, San Mateo, CA 94403
Listed 1 day ago · | MLS# ML82064798
$1,071/sqft
421 W 39th Ave is a single-level, 3-bedroom, 2-bath single family home in San Mateo 94403 with 1,670 square feet of living space, built in 1957. It is listed at $1,789,000, or $1,071 per square foot. The three most recent 3-bedroom sales in 94403 closed between $1,895,000 and $2,560,000 ($1,117 to $1,771 per square foot).
Est. $11,408/moP&I $9,283 · Tax $1,864 · Insurance $262 · HOA $0Assumes 20% down ($357,800) at 6.75% · Contact Timothy for a lender referralAegis Luxury Real Estate is a licensed California real estate brokerage (DRE# 01328224) and is not a mortgage lender, mortgage broker, or loan originator. The figures shown are estimates for general reference only and do not constitute a loan offer, pre-approval, pre-qualification, or commitment to lend. Estimates use a property tax rate of 1.25% of home price annually. Actual rates, payments, taxes, and insurance vary by lender and borrower qualifications. Contact Timothy for a referral to one of our preferred lending partners.
Single Family Price Position in San Mateo
$1.4M$3.6M
98Active in San Mateo
31Active Single Family Homes
1.6 moInventory
Why This Home Stands Out
🏠
Single Level, 3 Bed / 2 Bath, 1,670 sqft
Everything on one floor. Built in 1957, attached 2-car garage.
⚡
Just Listed, 1 Day on Market
Early showings often see the most competition.
Best fit forActive BuyersSan Mateo SearchersMove-Up / Move-In
About 421 W 39th Ave
Views! Views! Views!!!!!! Perched atop a hillside, this residence offers breathtaking, excellent views that stretch across the expansive San Francisco Bay to the East Bay Hills. This elevated ranch-style home is perfectly situated within the highly sought-after and prestigious Westwood Knolls neighborhood, known for its charm and tranquility. The residence features three generously sized bedrooms, highlighted by an expansive primary suite designed for comfort. The full-sized kitchen serves as a functional heart of the home, complete with a charming breakfast nook and convenient, direct access to the private rear yard, perfect for seamless indoor-outdoor living. The interior is anchored by an expansive L-shaped living and dining area, which serves as a stunning vantage point for taking in the impressive northern vistas of the city skyline and the shimmering bay. The living spaces are elegantly finished with classic hardwood floors and benefit from the efficiency and clarity of updated dual-pane windows throughout. Additionally, the property includes a spacious two-car garage. With its exceptional layout and inherent potential, this property presents a remarkable opportunity to customize and create a personalized sanctuary that perfectly reflects your unique lifestyle.
MLS ID #ML82064798, Charles Floyd. Listing provided by Compass · MLSListings Inc.
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Property Details for 421 W 39th Ave
Overview
- Property Type
- Single Family Residence
- Year Built
- 1957
- Stories
- 1
- Bedrooms
- 3
- Bathrooms
- 2 Full
- Living Area
- 1,670 sqft
- Lot Size
- 5,784 sqft (0.13 acres)
- Price/sqft
- $1,071
- Status
- Active
Interior
- Kitchen
- Dining l
- Fireplace
- Living room
- Heating
- Central forced air, gas
- Cooling
- None
- Flooring
- Tile, Wood
- Family Room
- None
Exterior and Parking
- Garage
- Attached, 2 spaces
- Carport
- -4 spaces
- Roof
- Composition, Shingle
- Foundation
- Concrete perimeter
- Construction
- Concrete
- View
- Bay, Bridge, City lights, Mountains
- Lot Features
- Grade hillside, Grade sloped up
- Fencing
- Wood
- Zoning
- R10006
Community and HOA
- Utilities
- Natural gas available, Public
- County
- San Mateo
- City
- San Mateo
Schools
- School District
- San Mateo Foster City Elementary
- San Mateo Schools
- View San Mateo schools
Listing
- MLS Number
- ML82064798
- Listed
- October 15, 2026
- Days on Market
- 1
- Listing Agent
- Charles Floyd
- Listing Brokerage
- Compass
- Data Verified
- October 16, 2026
Source: MLSListings Inc. School attendance boundaries are set by the district and can change; verify directly with the district.
Free from Aegis · Updated for October 2026
Three San Mateo Reports the Listing Does Not Give You
📄San Mateo Market ReportFree 9-page PDF with bedroom breakdowns, comp data and pricing trends, updated monthly.Email Me the Report →📋San Mateo Buyer BriefA personalized brief with comp data, offer strategy and neighborhood context.Email Me the Report →🎯San Mateo Offer StrategyComp analysis and bid recommendations before you write an offer on this home.Email Me the Report →
Location
421 W 39th Ave, San Mateo, CA 94403 · San Mateo County
Market Context
Price Positioning
🏠 Inventory: 22 3-bedroom homes and 31 single family homes currently active in San Mateo.
Source: MLSListings Inc. Timothy Alston, Broker, DRE# 01328224.
Want to know what this home will actually sell for? Get a data-backed offer range based on recent comparable sales.
Get My Offer Range →Frequently Asked Questions
Listed at $1,789,000 ($1,071/sqft). The three most recent 3-bedroom sales in 94403 closed at $1,117 to $1,771 per sqft.
Listed October 15, 2026. That is 1 day on market as of October 16, 2026.
Est. $11,408/mo with 20% down ($357,800) at 6.75%. That is principal and interest $9,283, property tax $1,864 and insurance $262. The assumptions and lender disclosure are with the payment estimate at the top of this page.
There are 98 active listings in San Mateo: 22 are 3-bedroom and 31 are single family homes.
The three most recent 3-bedroom sales in San Mateo 94403 closed at $1,895,000, $1,910,000 and $2,560,000, or $1,117 to $1,771 per sqft.
Yes. As of October 16, 2026, 421 W 39th Ave is an active listing at $1,789,000. It is a 3-bedroom, 2-bath single family home.
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Buyers
See 421 W 39th Ave before the weekend
Listed 1 day ago.
Questions
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Timothy Alston, Broker, DRE# 01328224. Over 23 years in Silicon Valley real estate.
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