21 Cobblestone Lane is one of the original 1930s summer residences built at the end of Graceland Avenue, set on an expansive lot of more than half an acre, an exceptionally rare offering in San Carlos. This well-maintained property presents a unique opportunity to build your dream home, thoughtfully remodel the existing residence, or explore potential subdivision opportunities (buyer to verify with the City). The home features three spacious bedrooms and three bathrooms, a generous living room, a separate den, an updated kitchen, and two distinct dining areas ideal for both everyday living and entertaining. A detached two-car garage and oversized driveways provide ample parking for guests. With abundant space, privacy, and endless potential, this is a truly rare opportunity in The City of Good Living.
Sold for $3,005,000
Street View
$3,005,000
21 Cobblestone Ln, San Carlos, CA 94070
3beds
2,096sqft
Single Family Residence, Residential
Built in 1931
0.6 Acres Lot
$3,026,400 Zestimate®
$1,434/sqft
$7,954 Estimated rent
Home value
$3,026,400
$2.75M - $3.33M
$7,954/mo
Zestimate® history
Owner options
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$7,954/mo
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$7,954/mo
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$19,039/mo
Est. payment
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$19,039/mo
Est. payment
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List your homeWhat's special
Detached two-car garageSeparate denThree spacious bedroomsThree bathroomsUpdated kitchen
Zillow last checked:
Listing updated:
Listed by:
Alana Corso 01914996 650-504-0270,
Christie's International Real Estate Sereno 650-486-1555
Bought with:
Maxine & Michelle Dumas, 70016021
Dumas & Company
Source: MLSListings Inc,MLS#: ML82036545
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 3
- Full bathrooms: 3
Bedroom
- Features: PrimaryBedroomonGroundFloor
Bathroom
- Features: StallShower2plus, Tile, TubinPrimaryBedroom, FullonGroundFloor
Dining room
- Features: BreakfastNook, EatinKitchen, FormalDiningRoom
Family room
- Features: NoFamilyRoom
Kitchen
- Features: Countertop_SolidSurfceCorian, ExhaustFan
Heating
- Central Forced Air, Wood Stove
Cooling
- Ceiling Fan(s)
Appliances
- Included: Gas Cooktop, Dishwasher, Exhaust Fan, Disposal, Double Oven, Refrigerator, Washer/Dryer
- Laundry: In Garage
Features
- One Or More Skylights, Vaulted Ceiling(s), Walk-In Closet(s)
- Flooring: Carpet, Hardwood, Tile, Vinyl Linoleum
- Number of fireplaces: 2
- Fireplace features: Wood Burning, Wood Burning Stove
Interior area
- Total structure area: 2,096
- Total interior livable area: 2,096 sqft
Property
Parking
- Total spaces: 2
- Parking features: Detached, Parking Area, Oversized
- Garage spaces: 2
Features
- Stories: 2
- Exterior features: Back Yard, Fenced
- Pool features: In Ground
- Fencing: Back Yard,Gate,Wood
Lot
- Size: 0.60 Acres
- Features: Gentle Sloping
Details
- Additional structures: Sheds
- Parcel number: 051111210
- Zoning: R10010
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence, Residential
Materials
- Foundation: Concrete Perimeter, Concrete Perimeter and Slab
- Roof: Composition
Condition
- New construction: No
- Year built: 1931
Utilities & green energy
- Gas: PublicUtilities
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Public Utilities, Water Public
Community & neighborhood
Location
- Region: San Carlos
Other
Other facts
- Listing agreement: ExclusiveRightToSell
Price history
| Date | Event | Price |
|---|---|---|
| 3/27/2026 | Sold | $3,005,000+15.6%$1,434/sqft |
Source:  MLSListings Inc #ML82036545 Report a problem | ||
| 3/11/2026 | Pending sale | $2,599,000$1,240/sqft |
Source: MLSListings Inc #ML82036545 Report a problem | ||
| 2/27/2026 | Listed for sale | $2,599,000$1,240/sqft |
Source: MLSListings Inc #ML82036545 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $3,487 +1.8% | $177,040 +2% |
| 2024 | $3,425 +2.1% | $173,570 +2% |
| 2023 | $3,354 +2.7% | $170,167 +2% |
| 2022 | $3,266 +2.5% | $166,832 +2% |
| 2021 | $3,187 +2.6% | $163,561 +1% |
| 2020 | $3,106 +2% | $161,885 +2% |
| 2019 | $3,044 +3.3% | $158,712 +2% |
| 2018 | $2,946 +2.6% | $155,601 +2% |
| 2017 | $2,871 +3.9% | $152,551 +2% |
| 2016 | $2,764 +7.1% | $149,561 +1.5% |
| 2015 | $2,581 | $147,315 +2% |
| 2014 | $2,581 | $144,430 +0.5% |
| 2013 | -- | $143,778 +2% |
| 2012 | -- | $140,959 |
| 2011 | -- | $140,959 +2.8% |
| 2010 | -- | $137,164 -0.2% |
| 2009 | -- | $137,491 +2% |
| 2008 | -- | $134,796 +2% |
| 2007 | -- | $132,154 +2% |
| 2006 | -- | $129,563 |
| 2005 | -- | $129,563 +4% |
| 2004 | -- | $124,534 +1.9% |
| 2003 | -- | $122,252 +2% |
| 2002 | -- | $119,856 +2% |
| 2001 | -- | $117,507 +2% |
| 2000 | -- | $115,204 |
Find assessor info on the county website
Neighborhood: 94070
Nearby schools
GreatSchools rating
- 7/10Clifford Elementary SchoolGrades: K-8Distance: 0.5 mi
- 7/10Sequoia High SchoolGrades: 9-12Distance: 1.7 mi
Schools provided by the listing agent
- Elementary: CliffordElementary
- High: SequoiaHigh_1
- District: RedwoodCityElementary
Source: MLSListings Inc. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$3,026,400
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$3,026,400
- California
- San Mateo County
- San Carlos
- 94070
- 21 Cobblestone Ln
Nearby cities
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