1003 Charter Oak Avenue, St. Helena, CA

$4,490,000

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4

Beds

4

Baths

4,488

Square feet

1.29

Acres

About 1003 Charter Oak Avenue

PRICED TO SELL WITH INSTANT EQUITY!!! Rare Napa Valley estate on 1.29 acres, under construction with $400K+ already invested and existing contractor mobilized for rapid completion. Buyer walks in with instant equityappraised recently for $5.6M as is; projected ARV $8.375M. Shovel-ready contemporary compound features a 4,049 sf main residence and 406 sf guest house designed for seamless indoor/outdoor living: vaulted ceilings, floor-to-ceiling glass, reclaimed natural wood, stone accents, and handcrafted tile. Also includes a 1,377 sf detached garage and a 1,000 sf outdoor kitchen with climate-controlled wine room. Landscaped grounds offer a sculptural entry court, kidney-shaped pool, multi-use putting green/lawn, mature privacy plantings, and sweeping vineyard and estate views. ?? Value-Add Bonus: Property qualifies for a lot split under SB9, offering rare development upside and dual-lifestyle or income potential. Sold as-is; completion requires approximately $1.16M. Sustainable infrastructure is integrated with durable materials and efficient systems. Ideal for an investor, builder/developer, or build-to-suite end buyer seeking fast execution, trophy wine-country distinction, and unparalleled value creationjust minutes from Napas tasting corridor and regional transport.

Features of 1003 Charter Oak Avenue

MLS® # OC25173221
Price $4,490,000
Bedrooms 4
Bathrooms 4.00
Full Baths 3
Half Baths 1
Square Footage 4,488
Acres 1.29
Year Built 2025
Type Residential
Sub-Type Detached
Status Active

Community Information

Address 1003 Charter Oak Avenue
Area SAINT HELENA (94574)
City St. Helena
County Napa
State CA
Zip Code 94574

Amenities

Parking Spaces 2
# of Garages 2
View Vineyard
Is Waterfront No
Has Pool Yes
Pool Below Ground,Private

Interior

Cooling Central Forced Air,Other/Remarks
Fireplace Yes
Fireplaces FP in Living Room
# of Stories 1
Stories 1 Story

Additional Information

Date Listed August 1st, 2025
Days on Market 27
Foreclosure No
Short Sale No
RE / Bank Owned No

Listing Details

OfficeFlex Realty

Listing Map

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