Seller's Agent in 2026
Alana Corso
Christie's International Real Estate Sereno
(650) 504-0270
7 in this area
68 Total Sales
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.
Last Agent to Sell the Property
Christie's International Real Estate Sereno License #01914996 Listed on: 02/27/2026
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 03/27/2026 03/27/26 | Sold | $3,005,000 | +15.6% | $1,434 / Sq Ft |
| 03/10/2026 03/10/26 | Pending | -- | -- | -- |
| 02/27/2026 02/27/26 | For Sale | $2,599,000 | -- | $1,240 / Sq Ft |
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $3,425 | $177,040 | $48,171 | $128,869 |
| 2024 | $3,425 | $173,570 | $47,227 | $126,343 |
| 2023 | $3,425 | $170,167 | $46,301 | $123,866 |
| 2022 | $3,266 | $166,832 | $45,394 | $121,438 |
| 2021 | $3,187 | $163,561 | $44,504 | $119,057 |
| 2020 | $3,106 | $161,885 | $44,048 | $117,837 |
| 2019 | $3,044 | $158,712 | $43,185 | $115,527 |
| 2018 | $2,946 | $155,601 | $42,339 | $113,262 |
| 2017 | $2,871 | $152,551 | $41,509 | $111,042 |
| 2016 | $2,764 | $149,561 | $40,696 | $108,865 |
| 2015 | $2,703 | $147,315 | $40,085 | $107,230 |
| 2014 | $2,581 | $144,430 | $39,300 | $105,130 |
Seller's Agent in 2026
Alana Corso
Christie's International Real Estate Sereno
(650) 504-0270
7 in this area
68 Total Sales
Buyer's Agent in 2026
Maxine Dumas
Dumas & Company
(650) 619-2770
5 in this area
69 Total Sales
Source: MLSListings
MLS Number: ML82036545
APN: 051-111-210
Ask me questions while you tour the home.