Situated in the heart of the Jefferson–Argonne Historic District in downtown Kirkwood, this distinguished Colonial Revival residence is a rare architectural gem. Lovingly owned and meticulously restored by the same family for more than 40 years, the home beautifully preserves its 1905 character while seamlessly blending timeless craftsmanship with the comforts of modern living. A thoughtfully designed addition introduces a comfortable main-floor bedroom suite with sitting room and an expansive, light-filled kitchen, creating the perfect balance of historic elegance and contemporary functionality. Offering nearly 3,800 square feet of living space, this gracious 2.5 story home features six bedrooms, 3.5 baths, four original fireplaces, picture rail moldings, pocket doors, and exquisite period millwork and casings throughout. Rich architectural details and impeccable craftsmanship create an atmosphere of warmth, character, and enduring charm. An impressive entry foyer welcomes you into the home and is flanked by elegant formal living and dining rooms, setting the tone for the home's timeless sophistication. Beyond the stunning addition, the original first floor has been thoughtfully restored with refinished hardwood floors and fresh paint throughout, preserving its historic beauty while enhancing everyday livability. The exterior has been meticulously renovated to highlight the home's original character and is complemented by a new architectural roof and freshly painted exterior. Extensive professional landscaping in both the front and back yards enhances the property's exceptional curb appeal while creating inviting outdoor spaces for entertaining and relaxation. Additional updates include newer zoned HVAC systems, a new 400-amp electrical panel, a maintenance-free deck, and the convenience of a main-floor laundry and mud room. One of the home's most treasured features is its full-width front porch—a signature element of historic Argonne Drive. From this welcoming gathering place, the owners have enjoyed watching neighbors stroll to the Farmers' Market, local shops, restaurants, and community events, reflecting the close-knit neighborhood spirit that makes this location so special. This is a once-in-a-generation opportunity to own one of Kirkwood's finest historic homes, just one block from the Farmers' Market and vibrant downtown Kirkwood, where historic charm, exceptional craftsmanship, and modern amenities come together in one extraordinary residence.