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512 Hemme AvenueAlamo, CA 94507

For Sale

$8,500,000

Smart Buyer Rebate $85,000

A rare opportunity to live on one of Westside Alamo’s most desirable streets in one of the area’s most iconic homes. Steeped in timeless elegance and rich architectural character, this extraordinary 8,699 sq ft estate is nestled on a private 1.4 acre lot. Offering 12 beds and 6 & 1/2 baths, including an attached au pair maisonette, this remarkable residence has been thoughtfully restored and updated while preserving its original architectural integrity and charm. Originally built for a prominent lumber baroness, the home showcases exceptional craftsmanship, with a structure crafted from heart redwood and exquisite millwork throughout. Gracious living spaces flow seamlessly offering an ideal setting for both everyday living and effortless entertaining. An expansive living room opens to the garden, while the formal dining room features a stone fireplace, elegant paneling and coffered ceilings. The kitchen offers marble countertops, high end appliances and an adjoining breakfast nook. Curated light fixtures & luxuriously updated bathrooms further enhance the home’s timeless appeal. A classic academia library, counted among the 12 beds provides a warm & inviting space. The main level features 3 beds & 1 1/2 baths, while upstairs, 7 beds & 4 baths offer an abundance of space & versatility. The spacious primary suite features a fireplace, dedicated dressing room, a walk-in shoe closet & a beautifully renovated bathroom. The attic provides an additional 511 sq ft with potential for a creative studio or storage. The lower level retains elements of the home’s original character, offering additional spaces suited for storage, wine collections & workout areas. The attached 2 bed, 1 bath au pair maisonette features its own private entrance, kitchen & generous living & dining area, offering a welcoming space for extended family or guests. Outdoors, a lovely patio overlooking the picturesque garden, an inviting alfresco dining area enclosed in a vintage greenhouse, additional seating spaces and a bocce ball court, provide a wonderful setting for entertaining and relaxation. The expansive 1.4-acre lot offers endless possibilities, with ample space to envision a resort-style pool, tennis or pickleball court. A home of exceptional character and distinction, where architectural beauty, rich heritage and gracious California living all come together in coveted Westside Alamo. Ideally situated within walking distance of highly regarded schools and scenic trails.

Listed by Khrista Jarvis

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License #01213582

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Coldwell Banker Realty

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925-856-0782

Last updated October 28, 2026

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Source: bridgeMLS #41151216

Listing Facts

  • TypeSingle-family
  • NeighborhoodWestside
  • Bedrooms12
  • Bathrooms7
  • Days on Prevu10
  • Size8,699 sqft
  • Price per sqft$977

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

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Listing History

10/21/2026
Listed by Coldwell Banker Realty
$8,500,000
  1. 10/21/2026$8,500,000
    Listed by Coldwell Banker Realty

Property Details for 512 Hemme Avenue

Exterior

Construction

  • Roof: Shingle
  • Stories: 2
  • Window Features: Window Coverings
  • Year Built: 1929
  • Architectural Style: Craftsman, Custom, English
  • Construction Materials: Wood Shingles
  • Exterior Features: Back Yard, Front Yard, Sprinklers Automatic, Garden

Features

  • Fencing: Fenced
  • Patio And Porch Features: Patio
  • View: Las Trampas Foothills, Mt Diablo

Measurements

  • Building Area Total: 8,699
  • Lot Features: Premium Lot, Landscaped, Private
  • Lot Size Acres: 1.44
  • Lot Size Area: 1
  • Lot Size Square Feet: 62,907
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 1981000142

Interior

Features

  • Appliances: Dishwasher, Gas Range, Microwave, Range, Refrigerator, Dryer, Washer, Gas Water Heater
  • Fireplace Features: Den, Dining Room, Living Room, Master Bedroom, Wood Burning
  • Fireplace: Yes
  • Fireplaces Total: 5
  • Flooring: Hardwood, Tile, Other
  • Interior Features: Au Pair, Dining Area, Formal Dining Room, Library, Office, Storage, Unfinished Room, Utility Room, Breakfast Nook, Counter - Solid Surface, Updated Kitchen, Central Vacuum

Measurements

  • Living Area: 8,699
  • Living Area Units: Square Feet

Rooms

  • Basement: Crawl Space
  • Bathrooms Full: 6
  • Bathrooms Partial: 1
  • Bathrooms Total Integer: 7
  • Bedrooms Total: 12
  • Rooms Total: 25

Other

Location

  • Subdivision Name: Westside Alamo

Parking

Parking

  • Covered Spaces: 2
  • Garage Spaces: 2
  • Parking Features: Attached, Parking Spaces, Parking Lot

Utilities

Equipment

  • Cooling: Ceiling Fan(s), Central Air
  • Electric: No Solar
  • Heating: Zoned
  • Has Heating: Yes
  • Laundry Features: Dryer, Laundry Room, Washer
  • Sewer: Public Sewer
  • Utilities: Internet Available
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 12 bedrooms and 7 bathrooms in this single-family home at 512 Hemme Avenue.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 512 Hemme Avenue.

How does 512 Hemme Avenue compare to other single-family homes in Westside?

This single-family home is listed 63% above the average price for single-family homes in Westside and has been on the market for 89 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 8,699 sqft.

512 Hemme Avenue is a 12-bedroom, 7-bath single-family home for sale in Alamo CA 94507. Available on Prevu for 10 days at $8,500,000. This home features 8,699 square feet of living space, located in Westside. The median listing price for single-family homes in this area is $3,999,999. Property amenities include private outdoor space, dishwasher, air conditioning, parking, and washer/dryer. Browse more single-family home listings in Contra Costa County.

Based on information from bridgeMLS and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.