**** Seller will entertain offers between $1,779,888 - $1,849,888. **** Timeless Weir Brothers Adobe — A Rare Old California Masterpiece in the Heart of Fallbrook. The Weir family has shaped the architectural soul of SoCal since 1947, and this home is one of their enduring masterpieces. Welcome to 3149 Old Post Rd—a beautifully maintained 4,371 sq ft single-level home situated on a private 2.34-acre lot in the heart of Fallbrook. This expansive property features 4 bedrooms, 3.5 bathrooms, and a 4-car garage, offering the perfect blend of space, comfort, and privacy. Inside, you'll find generous living areas with abundant natural light, a well-appointed kitchen, and multiple fireplaces that create a warm, inviting atmosphere. The home’s layout is ideal for both everyday living and entertaining, with room to grow or customize to your vision. The fully usable lot offers endless possibilities—add a pool, guest house, garden, or create your own private retreat. Zoned R-1 and located just minutes from top-rated Bonsall schools, shopping, and dining, this property combines rural charm with convenient access to town.