A masterpiece of contemporary architecture in Alamo's coveted Round Hill Country Club area, this newly constructed custom estate showcases exceptional design, craftsmanship, and sophisticated modern amenities. Defined by its striking butterfly metal roof, dramatic pivot entry door, soaring double-height ceilings, oversized picture windows, and expansive patio doors, the home is designed around an effortless connection between indoor and outdoor living. Nearly every main living space opens to expansive terraces and a resort-style backyard, framing panoramic evergreen hillside views. The thoughtfully designed floor plan features a stunning stone-clad wine room, chef's kitchen with Miele appliances, spacious guest suite, private office, upper-level retreat with kitchenette, and a luxurious primary suite with balcony and spa-inspired bath. Premium finishes include wide-plank Rift-sawn oak flooring, wood-clad windows, stone-slab bathrooms, Kohler Purist fixtures, trimless solid-core doors, flush baseboards, and a fully digital Anthem-controlled primary bath. Resort-inspired outdoor spaces include a heated pool and spa with Baja shelf, expansive terraces, and a fully equipped outdoor kitchen. Modern conveniences include whole-home Sonos audio, Lutron smart lighting, dual laundry rooms, solar, a dedicated pool bath, and a private gated driveway. A rare offering that combines striking architecture, exceptional craftsmanship, and elevated modern living in one of Alamo's most sought-after locations.
New construction
$4,800,000
263 Las Quebradas, Alamo, CA 94507
5beds
4,442sqft
Residential, Single Family Residence
Built in 2026
0.48 Acres Lot
$4,637,400 Zestimate®
$1,081/sqft
$-- HOA
What's special
Stunning stone-clad wine roomResort-style backyardPrivate gated drivewayUpper-level retreat with kitchenetteSpacious guest suiteDedicated pool bathKohler purist fixtures
- 11 days |
- 1,876 |
- 125 |
Zillow last checked:
Listing updated:
Listed by:
Ari Erfani DRE #01993058 925-255-6077,
Better Homes And Gardens Rp
Source: CCAR,MLS#: 41138822
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 5
- Full bathrooms: 4
- Partial bathrooms: 1
Rooms
- Room types: 1 Bedroom, 1.5 Baths, Primary Bedrm Suites - 2, Main Entry, Dining Room, Family Room, Office
Kitchen
- Features: Stone Counters, Tile Counters, Dishwasher, Disposal, Gas Range/Cooktop, Microwave, Pantry, Refrigerator, Other
Heating
- Heat Pump, Other, Fireplace(s)
Cooling
- Central Air
Appliances
- Included: Dishwasher, Gas Range, Microwave, Refrigerator, Dryer, Washer, Water Filter System, Electric Water Heater
- Laundry: Other, Common Area
Features
- Pantry
- Flooring: Hardwood
- Number of fireplaces: 1
- Fireplace features: Gas, Gas Starter
Interior area
- Total structure area: 4,442
- Total interior livable area: 4,442 sqft
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Attached, Garage Door Opener
- Attached garage spaces: 2
Features
- Levels: Two
- Stories: 2
- Exterior features: Garden/Play
- Has private pool: Yes
- Pool features: Gas Heat, Other
- Spa features: Heated
- Fencing: Fenced
Lot
- Size: 0.48 Acres
- Features: Premium Lot, Sloped Up, Sprinklers In Rear, Back Yard, Front Yard, Side Yard, Landscape Back, Landscape Front
Details
- Parcel number: 1930800956
- Special conditions: Standard
- Other equipment: Intercom, Other, Irrigation Equipment
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Residential, Single Family Residence
Materials
- Composition Shingles, Stucco, Other, Siding - Other
- Roof: Metal
Condition
- New construction: Yes
- Year built: 2026
Utilities & green energy
- Electric: Photovoltaics Seller Owned
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Subdivision: Roundhill
HOA
- Has HOA: No
Location
- Region: Alamo
Financial & listing details
- Price per square foot: $1,081/sqft
- Tax assessed value: $841,500
- Annual tax amount: $9,347
- Date on market: 6/22/2026
Estimated market value
$4,637,400
$4.41M - $4.87M
$3,789/mo
Price history
| Date | Event | Price |
|---|---|---|
| 6/22/2026 | Listed for sale | $4,800,000+481.8%$1,081/sqft |
Source:  CCAR #41138822 Report a problem | ||
| 5/24/2024 | Sold | $825,000-5.2%$186/sqft |
Source: CCAR #41048774 Report a problem | ||
| 4/25/2024 | Pending sale | $870,000$196/sqft |
Source:  bridgeMLS/CCAR/Bay East AOR #41048774 Report a problem | ||
| 4/13/2024 | Listed for sale | $870,000$196/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41048774 Report a problem | ||
| 2/3/2024 | Pending sale | $870,000$196/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41048774 Report a problem | ||
| 1/31/2024 | Listed for sale | $870,000-2.8%$196/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41048774 Report a problem | ||
| 1/6/2024 | Listing removed | -- |
Source: bridgeMLS/CCAR/Bay East AOR #41033315 Report a problem | ||
| 11/15/2023 | Price change | $895,000-10.4%$201/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41033315 Report a problem | ||
| 10/17/2023 | Listed for sale | $998,500$225/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41033315 Report a problem | ||
| 10/7/2023 | Listing removed | -- |
Source: bridgeMLS/CCAR/Bay East AOR #41033315 Report a problem | ||
| 7/19/2023 | Listed for sale | $998,500+5.1%$225/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41033315 Report a problem | ||
| 7/21/2019 | Listing removed | $949,888$214/sqft |
Source: Intero Real Estate Services #40846962 Report a problem | ||
| 11/28/2018 | Listed for sale | $949,888+58.6%$214/sqft |
Source: Intero Real Estate Services #40846962 Report a problem | ||
| 7/4/2011 | Listing removed | $599,000$135/sqft |
Source: RE/MAX ACCORD #40502773 Report a problem | ||
| 1/9/2011 | Listed for sale | $599,000+136.8%$135/sqft |
Source: RE/MAX Accord #40502773 Report a problem | ||
| 6/29/1998 | Sold | $253,000$57/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $9,347 +106.6% | $841,500 +112.5% |
| 2024 | $4,523 +1.4% | $396,049 +2% |
| 2023 | $4,462 +0.7% | $388,284 +2% |
| 2022 | $4,430 +2% | $380,671 +2% |
| 2021 | $4,344 +1.6% | $373,207 +1% |
| 2020 | $4,274 +1.1% | $369,381 +2% |
| 2019 | $4,226 +3.7% | $362,139 +2% |
| 2018 | $4,076 +3.5% | $355,039 +2% |
| 2017 | $3,937 +1.2% | $348,078 +2% |
| 2016 | $3,890 +2.5% | $341,253 +1.5% |
| 2015 | $3,793 | $336,128 +2% |
| 2014 | $3,793 | $329,544 +0.5% |
| 2013 | -- | $328,055 +2% |
| 2012 | -- | $321,623 +2% |
| 2011 | -- | $315,317 +0.8% |
| 2010 | -- | $312,961 -0.2% |
| 2009 | -- | $313,705 +2% |
| 2008 | -- | $307,554 +2% |
| 2007 | -- | $301,524 +2% |
| 2006 | -- | $295,612 +2% |
| 2005 | -- | $289,816 +2% |
| 2004 | -- | $284,134 +1.9% |
| 2003 | -- | $278,927 +2% |
| 2002 | -- | $273,458 +2% |
| 2001 | -- | $268,097 |
Find assessor info on the county website
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HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 94507
Nearby schools
GreatSchools rating
- 9/10Rancho Romero Elementary SchoolGrades: K-5Distance: 1.8 mi
- 10/10Stone Valley Middle SchoolGrades: 6-8Distance: 0.7 mi
- 10/10Monte Vista High SchoolGrades: 9-12Distance: 2.1 mi
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- California
- Contra Costa County
- Alamo
- 94507
- 263 Las Quebradas
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