Fold House is a striking new construction residence by award-winning women-led architect duo Artifact Collaborative, set dramatically in the lower Berkeley Hills. West-facing windows and doors frame sweeping 180-degree views of San Francisco and the Golden Gate Bridge. The home’s name reflects its defining design concept—interlocking planes and articulated volumes—expressed through sculptural two-story floating staircases and a distinctive folded roofline. A triangulated clerestory window draws in abundant natural light throughout the interiors. Thoughtfully designed to inspire and endure, Fold House offers a forward-thinking, all-electric lifestyle with solar PV and battery, high-efficiency heat pumps, EV charging, seismic-resistant foundations, and fire-hardened construction with standing seam metal roofing, plaster exterior, and a full fire sprinkler system. A rare architectural offering where form and function exist in perfect balance. With panoramic vistas and light-filled interiors, every day feels extraordinary. This is Berkeley Hills living at its very best.
Pending
$3,495,000
1136 Keith Ave, Berkeley, CA 94708
4beds
3,136sqft
Est.:
Single Family Residence
Built in 2025
6,098.4 Square Feet Lot
$-- Zestimate®
$1,114/sqft
$-- HOA
What's special
Sculptural two-story floating staircasesDistinctive folded rooflinePanoramic vistasLight-filled interiorsPlaster exterior
- 9 days |
- 4,279 |
- 185 |
Zillow last checked: 8 hours ago
Listing updated: February 25, 2026 at 02:50pm
Listed by:
Scott Leverette DRE #01371899 510-919-3333,
Golden Gate Sothebys Intl Rlty,
Aviva Kamler DRE #02076186,
Sotheby's International Realty
Source: bridgeMLS/CCAR/Bay East AOR,MLS#: 41124093
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
Rooms
- Room types: Office
Kitchen
- Features: Counter - Solid Surface, Dishwasher, Electric Range/Cooktop, Ice Maker Hookup, Microwave, Oven Built-in, Pantry, Refrigerator, Updated Kitchen
Heating
- Heat Pump-Air
Cooling
- Heat Pump
Appliances
- Included: Dishwasher, Electric Range, Plumbed For Ice Maker, Microwave, Oven, Refrigerator
- Laundry: Hookups Only, Laundry Room
Features
- Counter - Solid Surface, Pantry, Updated Kitchen
- Flooring: Concrete, Hardwood
- Has fireplace: No
- Fireplace features: None
Interior area
- Total structure area: 3,136
- Total interior livable area: 3,136 sqft
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Attached, Int Access From Garage, Garage Door Opener
- Garage spaces: 1
Features
- Levels: Three or More Stories
- Exterior features: Back Yard, Garden/Play
- Pool features: None
- Has view: Yes
- View description: Bay, Bay Bridge, City Lights, Downtown, Golden Gate Bridge, Mt Diablo, Panoramic, San Francisco, Water, Bridge(s), City, Mt Tamalpais, Ocean
- Has water view: Yes
- Water view: Bay,Bay Bridge,Golden Gate Bridge,Water
Lot
- Size: 6,098.4 Square Feet
- Features: Sloped Down
Details
- Parcel number: 63298838
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Modern
- Property subtype: Single Family Residence
Materials
- Stucco, Wood Siding, Metal Siding, Fiber Cement
- Foundation: Combination, Concrete, Slab, Piling
Condition
- New Construction
- New construction: Yes
- Year built: 2025
Details
- Builder name: Artifact Collaborative
Utilities & green energy
- Electric: Photovoltaics Seller Owned
- Utilities for property: Irrigation Connected, All Electric, Internet Available, Master Electric Meter
Green energy
- Energy generation: Solar
Community & HOA
Community
- Security: Fire Sprinkler System, Carbon Monoxide Detector(s), Fire Suppression System, Smoke Detector(s)
HOA
- Has HOA: No
Location
- Region: Berkeley
Financial & listing details
- Price per square foot: $1,114/sqft
- Tax assessed value: $933,855
- Date on market: 2/18/2026
- Listing terms: Cash,Conventional
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 2/25/2026 | Pending sale | $3,495,000$1,114/sqft |
Source:  bridgeMLS/CCAR/Bay East AOR #41124093 Report a problem | ||
| 2/18/2026 | Listed for sale | $3,495,000-8.7%$1,114/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41124093 Report a problem | ||
| 12/24/2025 | Listing removed | $3,830,000$1,221/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41116050 Report a problem | ||
| 11/18/2025 | Price change | $3,830,000+6.4%$1,221/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41116050 Report a problem | ||
| 10/29/2025 | Listed for sale | $3,600,000+309.1%$1,148/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41116050 Report a problem | ||
| 9/23/2021 | Sold | $880,000$281/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #40963466 Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | -- | $933,855 +2% |
| 2024 | $14,531 +2.1% | $915,551 +2% |
| 2023 | $14,226 +1.9% | $897,600 +2% |
| 2022 | $13,965 +210.4% | $880,000 +849.1% |
| 2021 | $4,500 +10% | $92,721 +1% |
| 2020 | $4,089 +9.4% | $91,770 +2% |
| 2019 | $3,737 +8% | $89,971 +2% |
| 2018 | $3,461 | $88,207 +2% |
| 2017 | $3,461 +7.8% | $86,477 +2% |
| 2016 | $3,210 +6.5% | $84,781 +1.5% |
| 2015 | $3,014 | $83,508 +2% |
| 2014 | $3,014 | $81,873 +0.5% |
| 2013 | -- | $81,503 +2% |
| 2012 | -- | $79,905 +2% |
| 2011 | -- | $78,339 +0.8% |
| 2010 | -- | $77,753 -0.2% |
| 2009 | -- | $77,938 +2% |
| 2008 | -- | $76,410 +2% |
| 2007 | -- | $74,912 +2% |
| 2006 | -- | $73,443 +2% |
| 2005 | -- | $72,003 +2% |
| 2004 | -- | $70,593 +1.9% |
| 2003 | -- | $69,300 +2% |
| 2002 | -- | $67,941 +2% |
| 2001 | $1,743 | $66,608 |
Find assessor info on the county website
BuyAbility℠ payment
Est. payment
$20,592/mo
Principal & interest
$17039
Property taxes
$3553
Climate risks
Neighborhood: Berkeley Hills
Nearby schools
GreatSchools rating
- 9/10Cragmont Elementary SchoolGrades: K-5Distance: 0.5 mi
- 8/10Martin Luther King Middle SchoolGrades: 6-8Distance: 1.1 mi
- 9/10Berkeley High SchoolGrades: 9-12Distance: 1.5 mi
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