Emma Elfving
Compass
(650) 525-2423
90 Total Sales
1 in Alder Manor
$3,500,000 Price
21 Cobblestone Ln San Carlos, CA 94070
Alder Manor Neighborhood
3
Beds
3
Baths
2,096
Sq Ft
0.6
Acre Lot
Highlights
- In Ground Pool
- Wood Burning Stove
- Wood Flooring
- Sequoia High School Rated A
- Vaulted Ceiling
- Main Floor Primary Bedroom
About This Home
As of March 202621 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
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Home Details
Home Type
- Single Family
Year Built
- Built in 1931
Lot Details
- Gentle Sloping Lot
- Back Yard Fenced
- May Be Possible The Lot Can Be Split Into 2+ Parcels
- Zoning described as R10010
Parking
- 2 Car Detached Garage
Home Design
- Wood Frame Construction
- Composition Roof
- Concrete Perimeter Foundation
Interior Spaces
- 2,096 Sq Ft Home
- 2-Story Property
- Vaulted Ceiling
- Ceiling Fan
- Skylights
- 2 Fireplaces
- Wood Burning Stove
- Wood Burning Fireplace
- Garden Windows
- Formal Dining Room
- Den
Kitchen
- Breakfast Area or Nook
- Eat-In Kitchen
- Double Oven
- Gas Cooktop
- Dishwasher
- Corian Countertops
- Disposal
Flooring
- Wood
- Carpet
- Tile
- Vinyl
Bedrooms and Bathrooms
- 3 Bedrooms
- Primary Bedroom on Main
- Walk-In Closet
- Bathroom on Main Level
- 3 Full Bathrooms
- Bathtub Includes Tile Surround
- Walk-in Shower
Laundry
- Laundry in Garage
- Washer and Dryer
Pool
- In Ground Pool
Utilities
- Forced Air Heating System
- Vented Exhaust Fan
Listing and Financial Details
- Assessor Parcel Number 051-111-210
Ownership History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
Date
Name
Owned For
Owner Type
Purchase Details
Listed on
Feb 27, 2026
Closed on
Apr 1, 2026
Sold by
Bought by
Seller's Agent
Alana Corso
Christie's International Real Estate Sereno
Buyer's Agent
Maxine Dumas
Dumas & Company
List Price
$2,599,000
Sold Price
$3,005,000
Premium/Discount to List
$406,000
15.62%
Views
41
Current Estimated Value
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
-$56,969
Avg. Annual Appreciation
-5.32%
Original Mortgage
$1,880,000
Outstanding Balance
$1,874,453
Interest Rate
6.09%
Mortgage Type
New Conventional
Estimated Equity
$1,073,578
Purchase Details
Listed on
Feb 27, 2026
Closed on
Mar 16, 2026
Sold by
Bought by
Seller's Agent
Alana Corso
Christie's International Real Estate Sereno
Buyer's Agent
Maxine Dumas
Dumas & Company
List Price
$2,599,000
Sold Price
$3,005,000
Premium/Discount to List
$406,000
15.62%
Views
41
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$1,880,000
Outstanding Balance
$1,874,453
Interest Rate
6.09%
Mortgage Type
New Conventional
Estimated Equity
$1,073,578
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Alder Manor, CA
-
Emma Elfving
-
John Friend
John Friend
Friends Real Estate Services
(209) 454-3737
126 Total Sales
2 in Alder Manor
$2,100,000 Price Range
-
Azad Aramandla
Azad Aramandla
Keller Williams Realty
(209) 231-7582
47 Total Sales
1 in Alder Manor
$2,375,000 Price
-
Moe Arshad
Moe Arshad
Real Estate Source, Inc.
(650) 667-7805
17 Total Sales
1 in Alder Manor
$2,714,888 Price
-
Jason Born
Jason Born
Born Real Estate, Inc.
(650) 539-6978
19 Total Sales
1 in Alder Manor
$850,000 Price
-
Susan Gee Berry
Susan Gee Berry
KW Advisors
(650) 649-6958
51 Total Sales
1 in Alder Manor
$937,500 Price
Purchase History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Grant Deed | -- | Lawyers Title Company | |
| Grant Deed | $3,005,000 | Lawyers Title Company |
Source: Public Records
Mortgage History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $1,880,000 | New Conventional | |
| Previous Owner | $450,000 | New Conventional |
Source: Public Records
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| 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 |
Source: MLSListings
Tax History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| 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 | $3,487 | $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 |
Source: Public Records
Agents Affiliated with this Home
-
Alana Corso
Seller's Agent in 2026
Alana Corso
Christie's International Real Estate Sereno
(650) 504-0270
5 in this area
70 Total Sales
-
Maxine Dumas
Buyer's Agent in 2026
Maxine Dumas
Dumas & Company
(650) 619-2770
5 in this area
66 Total Sales
Map
Source: MLSListings
MLS Number: ML82036545
APN: 051-111-210
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