Michael Case
Realty ONE Group TODAY
(925) 338-0214
4 Total Sales
1 in Palomares Hills
$2,200,000 Price
18508 Mountain Ln Castro Valley, CA 94552
Palomares Hills Neighborhood
5
Beds
2
Baths
2,050
Sq Ft
0.31
Acre Lot
Highlights
- Midcentury Modern Architecture
- Atrium Room
- Beamed Ceilings
- Independent Elementary School Rated A
- Cathedral Ceiling
- Attached Garage
About This Home
As of August 2026This exquisitely updated five-bedroom Eichler seamlessly blends iconic mid-century architecture with refined modern design, sitting on a flat .31-acre lot. Originally designed by renowned architectural firm Jones & Emmons for Joseph Eichler, the home has been thoughtfully reimagined while preserving the clean lines, natural materials, and indoor-outdoor living that define its architectural legacy. A serene open-air atrium welcomes you into the heart of the home. The open-concept living, dining, and kitchen areas flow effortlessly together, with walls of glass and direct access to the surrounding outdoor spaces. Vaulted ceilings and beams enhance the sense of volume, while an exposed wood feature wall adds warmth and character. At the center of the home, the sleek designer kitchen features a quartz waterfall island, Carrara marble backsplash, premium stainless-steel appliances, an induction cooktop, a wine refrigerator, and generous pantry storage. The private primary wing is a tranquil retreat with direct backyard access and a spa-inspired en suite bathroom featuring a dual shower head and a double vanity. An adjacent fifth bedroom/office opens to the atrium, providing a flexible space. On the opposite side of the home, three generously sized bedrooms offer privacy and comfortable separation of space. The thoughtfully landscaped yard features redwood trees, well-landscaped grounds, and turf that create a peaceful setting. The expansive rear patio provides abundant space for outdoor dining, entertaining, and relaxation, equally suited for everyday living and special occasions. Located in Castro Valley's sought-after Greenridge neighborhood, the home offers a tranquil residential setting with convenient access to parks and trails at Greenridge Park, Cull Canyon Park, and Lake Chabot. Castro Valley BART and major commute corridors are within easy reach, providing excellent connectivity throughout the Bay Area.
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Home Details
Home Type
- Single Family
Year Built
- Built in 1963 | Remodeled
Parking
- Attached Garage
Home Design
- Midcentury Modern Architecture
Interior Spaces
- 2,050 Sq Ft Home
- Beamed Ceilings
- Cathedral Ceiling
- Atrium Room
Bedrooms and Bathrooms
- 5 Bedrooms
- 2 Full Bathrooms
Additional Features
- 13,578 Sq Ft Lot
- Radiant Heating System
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
Closed on
May 1, 2018
Sold by
Floyd Carmen O and Douglas E Floyd Trust
Bought by
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$900,000
Outstanding Balance
$760,690
Interest Rate
4.45%
Mortgage Type
New Conventional
Estimated Equity
$959,924
Purchase Details
Closed on
Dec 1, 2017
Sold by
Floyd Carmen and Floyd Living Trust
Bought by
Floyd Carmen O and Douglas E Floyd Created June 3
Purchase Details
Closed on
Oct 24, 2017
Sold by
Mro Investments Inc
Bought by
Floyd Carmen and Floyd Living Trust
Purchase Details
Closed on
Aug 9, 2017
Sold by
Hamilton Elias and Taylor Marcus
Bought by
Mro Investments Inc
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$587,350
Interest Rate
3.96%
Mortgage Type
Future Advance Clause Open End Mortgage
Purchase Details
Closed on
Mar 6, 2016
Sold by
Morris Randy and Estate Of Minerva L Hamilton
Bought by
Hamilton Elias and Taylor Marcus
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Palomares Hills, CA
-
Michael Case
-
Chin Fong
Chin Fong
Cornerstone Realty and Mortgage
(510) 939-7684
137 Total Sales
2 in Palomares Hills
$1.4M - $1.5M Price Range
-
Andrew Fung
Andrew Fung
Ramsell Real Estate Inc
(925) 940-4577
60 Total Sales
1 in Palomares Hills
$1,850,000 Price
-
Tonya Colton
Tonya Colton
Notable Real Estate
(925) 396-4568
74 Total Sales
1 in Palomares Hills
$1,385,000 Price
-
Westin Means
Westin Means
eXp Realty of California
(510) 853-6907
28 Total Sales
1 in Palomares Hills
$1,375,000 Price
-
Otto Catrina
Otto Catrina
Catrina R.E. & Investments
(628) 227-9891
53 Total Sales
2 in Palomares Hills
$1.2M - $1.7M Price Range
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 | $1,500,000 | Chicago Title Company | |
| Interfamily Deed Transfer | -- | None Available | |
| Grant Deed | $865,000 | Placer Title Company | |
| Grant Deed | $691,000 | Placer Title Company | |
| Interfamily Deed Transfer | -- | None Available |
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 | $900,000 | New Conventional | |
| Previous Owner | $587,350 | Future Advance Clause Open End Mortgage |
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 |
|---|---|---|---|---|
| 08/19/2026 08/19/26 | Sold | $2,100,000 | +23.9% | $1,024 / Sq Ft |
| 08/04/2026 08/04/26 | Pending | -- | -- | -- |
| 07/23/2026 07/23/26 | For Sale | $1,695,000 | -- | $827 / Sq Ft |
Source: San Francisco Association of REALTORS®
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 |
|---|---|---|---|---|
| 2026 | $20,926 | $1,733,840 | $522,252 | $1,218,588 |
| 2025 | $20,926 | $1,699,714 | $512,014 | $1,194,700 |
| 2024 | $20,481 | $1,666,250 | $501,975 | $1,171,275 |
| 2023 | $20,186 | $1,640,444 | $492,133 | $1,148,311 |
| 2022 | $19,827 | $1,601,284 | $482,485 | $1,125,799 |
| 2021 | $19,330 | $1,569,754 | $473,026 | $1,103,728 |
| 2020 | $18,894 | $1,560,600 | $468,180 | $1,092,420 |
| 2019 | $19,261 | $1,530,000 | $459,000 | $1,071,000 |
| 2018 | $11,135 | $865,000 | $259,500 | $605,500 |
| 2017 | $4,214 | $302,477 | $88,223 | $214,254 |
| 2016 | $4,008 | $296,548 | $86,494 | $210,054 |
| 2015 | $1,760 | $112,444 | $30,083 | $82,361 |
| 2014 | $1,713 | $110,242 | $29,494 | $80,748 |
Source: Public Records
Agents Affiliated with this Home
-
Maddy Mazzola
MM
Seller's Agent in 2026
Maddy Mazzola
Compass
(510) 846-5168
1 in this area
31 Total Sales
-
Martin Encinas Leon
Seller Co-Listing Agent in 2026
Martin Encinas Leon
Harper Real Estate
(415) 652-4532
1 in this area
67 Total Sales
-
Kirsty Hepburn
Buyer's Agent in 2026
Kirsty Hepburn
Compass
(408) 881-4741
1 in this area
20 Total Sales
-
Crystal Florida
Buyer Co-Listing Agent in 2026
Crystal Florida
Compass
(925) 785-6488
1 in this area
142 Total Sales
Map
Source: San Francisco Association of REALTORS®
MLS Number: 426148346
APN: 085-1606-040-00
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Information is deemed reliable but not guaranteed.
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