**** 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 estate offers 4 bedrooms plus a dedicated office and playroom that can easily serve as additional bedrooms, along with 3.5 bathrooms and a 4-car garage—ideal for flexible living. 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. This home truly has it all! Enjoy your own private retreat with a sparkling pool, charming guest house, and lush garden oasis. Zoned R-1 and just minutes from Bonsall Elementary School, shopping, and dining, this property combines the tranquility of country living with the convenience of town access.