Private Howell Mountain estate with exceptional living space & income potential. Welcome to a rare and soulful country estate in the heart of the prestigious Howell Mountain AVA where natural beauty, community, and versatility come together. Set on 2+ serene acres with approximately 3,800 sq ft across multiple structures, this special property offers inspiring possibilities for multi-generational living, hosting, or meaningful rental income. Long cherished as a gathering place for family across generations, it is now ready to welcome its next chapter. The Main Residence is ~3,000 sqft. The beautifully renovated circa-1920 Craftsman farmhouse blends timeless character with refined modern living. Vaulted ceilings, British oak hardwood floors, and a warm fireplace anchor generous living spaces. French doors and a wraparound porch create effortless indoor-outdoor flow, framing sweeping vineyard views. The gourmet kitchen features a Viking dual-oven range, maple block island with baker's marble inlay, wine refrigerator, and inviting dining nook. The Guest House is ~800 sqft and offers Income Opportunity. Privately situated above an expansive garage/workshop and carport, the one-bedroom apartment is ideal for extended family, guests, or attractive rental income. The garage also offers additional storage or warehousing rental potential. The Historic 1897 Stone Building is ~288 sqft, a charming stone structure with cellar. Perfect as a wine room, studio, or peaceful retreat. Resort-Style Outdoor Living: pool and outdoor kitchen create a private oasis for gathering, celebration, and relaxation. Moments from Las Posadas National Forest trails, this Angwin estate offers beauty, flexibility, and an authentic Napa Valley lifestyle meant to be shared, enjoyed, and lived fully.
Howell Mountain, located between Angwin and St. Helena, is a rural and wine-country Angwin neighborhood with forested ridgelines and vineyard roads. The character concentrates along Howell Mountain Road near the Angwin Plaza area, where tasting rooms, a market counter, and porch-side conversations set the pace. Homes range from secluded cabins and ranch-style properties to contemporary vineyard estates tucked behind oaks and madrone. The landscape shifts from sunlit vine rows to shaded trailheads, with long views toward the Napa Valley floor. Landmark wineries such as Dunn Vineyards, O'Shaughnessy Estate Winery, and Robert Craig Winery act as cultural anchors for the mountain.
Provided by Walk Score and Local Logic
Property details
Interior
Exterior
Finance
Kitchen
Bathroom
Bedroom
Living
Dining
Interior features
Roll-in shower and additional shower(s)
Marble master bathroom
Tub in other bathrooms
Formal dining area
Deck attached to family room and living room
Breakfast area, island, and pantry closet in kitchen
Guest quarters / Guest house and in-law apartment
Studio, wine cellar, and workshop
Bedrooms
4 bedrooms total
Master bedroom with walk-in closet
Bathrooms
4 full bathrooms
Kitchen
Double oven
Free-standing gas range
Free-standing refrigerator
Microwave
Wine refrigerator
Kitchen island, breakfast area, and pantry closet
Laundry & utility
Stacked washer and dryer included
Flooring
Tile flooring
Wood flooring
Heating & cooling
Heat pump heating
Central cooling
Exterior features
Covered deck
Front porch
Wrap-around porch
Dog run
Uncovered courtyard
Private pool with pool cover
Guest house, shed(s), workshop and other outbuildings
Garden
Home design
Single family residence
Updated / remodeled
Two stories
Includes a second dwelling unit / ADU
Parking
Total parking for 8 vehicles
Tandem garage
2 garage spaces
Gated driveway with gravel and paved sections
Construction
Solar panels (photovoltaics) owned by seller
Utilities
Propane tank owned
Solar power
Septic system
Generator for electric power
HOA & community
No homeowners association
Not a senior community
Other
Second unit has a private entry
Electricity and solar
View estimated energy costs and solar savings for this home
The AW district classification is intended to be applied in those areas of the county where the predominant use is agriculturally oriented, where watershed areas, reservoirs and floodplain tributaries are located, where development would adversely impact on all such uses, and where the protection of agriculture, watersheds and floodplain tributaries from fire, pollution and erosion is essential to the general health, safety and welfare.
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
6/10 Fire Factor
8% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 98° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
10/10 Air Factor
28 unhealthy days expected this year, 28 days in 30 years
Provided by First Street
Historical weather
Angwin, CA • 94508
Average low and high temperatures (°F)
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41
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85
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81
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72
51
58
44
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43
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Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
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Sun exposure
90/ 100
Exceptional sunlight
Sunscore
There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.4 hrs
5.9 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 405 Cold Springs Rd
$1,925,649
$65K under list price of $1.99M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $725K to $3.0M.