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310 Castano Avenue, Alamo Heights, TX 78209 (MLS # 1968391)

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Price $1,499,000
Status Active
Beds 4
Baths 4 Baths
Home size 3,213 sqft
Lot Size 7,493 sqft
Days on Market 119
Timeless character in Alamo Heights. Set among mature trees and lush, thoughtfully landscaped grounds, this exceptional 4-bedroom, 4-bathroom residence captures the character and understated sophistication of Alamo Heights. Offering an enviable combination of privacy, gracious living spaces, and elevated indoor-outdoor entertaining, the property is designed for both intimate everyday living and effortless entertaining. From the moment you enter, the home's warmth and distinctive character are immediately apparent. The formal living room, anchored by a fireplace, creates an inviting setting for gatherings, while the adjoining casual dining area leads naturally into the beautifully updated chef's kitchen. Designed with both style and function in mind, the kitchen features a built-in refrigerator, dishwasher, double ovens, gas cooktop, oversized island, and breakfast bar. Beyond the kitchen, a spacious second family room opens through French doors to the expansive covered back porch, seamlessly extending the living space outdoors. The thoughtful floor plan also offers a private guest suite on the main level, complete with a full bath-an ideal retreat for overnight guests or flexible living arrangements. The oversized primary suite is a true sanctuary, filled with natural light and designed for relaxation. The beautifully renovated primary bath elevates the experience with dual vanities, custom built-in storage, a generous walk-in shower, and an impressive custom walk-in closet. Upstairs, two additional bedrooms, two full bathrooms, and a generous game room provide exceptional flexibility for family and guests, while preserving the home's distinctive charm and sense of scale. The outdoor living spaces are where this residence truly shines. A generous covered porch and oversized patio overlook a stunning Keith Zars pool framed by mature landscaping, creating a private, resort-inspired setting for leisurely afternoons, entertaining, and al fresco dining. The grounds offer the rare combination of beauty, privacy, and effortless livability that defines exceptional Alamo Heights living. Adding remarkable versatility, the guest quarters above the garage offer approximately 576 square feet of additional living space, including a living/bedroom area and full bathroom. Ideal for guests, a private office, studio, homeschool space, or extended family, this separate living area provides flexibility without compromising the privacy of the main residence. An oversized two-car garage provides abundant storage, while every aspect of the property reflects a thoughtful balance of comfort and functionality. Beautifully situated in one of San Antonio's most coveted neighborhoods, this is a residence that offers not simply a home, but a refined Alamo Heights lifestyle-private, gracious, and designed for exceptional living.
Property Type(s): Single Family
Last Updated 8/20/2026 Area ALAMO HEIGHTS AREA 1
Year Built 1940 Neighborhood ALAMO HEIGHTS AREA 1
Garage Spaces 2.0 County Bexar

SCHOOLS

School District Alamo Heights I.S.D.
Elementary School Cambridge
Jr. High School Alamo Heights
High School Alamo Heights

Price History

Prior to Jul 6, '26 $1,595,000
Jul 6, '26 - Jul 31, '26 $1,559,000
Jul 31, '26 - Aug 20, '26 $1,525,000
Aug 20, '26 - Today $1,499,000

Additional Details

AIR Ceiling Fan(s), Central Air
AIR CONDITIONING Yes
APPLIANCES Cooktop, Dishwasher, Disposal, ENERGY STAR Qualified Appliances, Microwave, Oven, Refrigerator
BASEMENT Yes
CONSTRUCTION Stone, Stucco
FIREPLACE Yes
GARAGE Yes
HEAT Central, Natural Gas
INTERIOR Breakfast Bar, Eat-In Kitchen, High Ceilings, High Speed Internet, Kitchen Island, Open Floorplan, Pantry, Walk-In Closet(s)
LOT 7492 sq ft
LOT DESCRIPTION Level
PARKING Garage Door Opener, Detached
POOL Yes
POOL DESCRIPTION Outdoor Pool, Heated, In Ground
STORIES 2
STYLE Tudor, Two Story
SUBDIVISION ALAMO HEIGHTS AREA 1
TAXES 21267.83
UTILITIES Cable Available, Cable Connected

Location

 

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Listing provided by Kuper Sotheby's Int'l Realty

LERA MLS

© LERA MLS 2026. Information deemed to be reliable but not guaranteed. The data relating to real estate for sale on this website comes in part from the Broker Reciprocity Program. Real estate listings held by brokerage firms other than the owner of this page are marked with the BR logo and detailed information about them includes the name of the listing brokers. Listing broker has attempted to offer accurate data, but buyers are advised to confirm all items. Information last updated on 10/15/26 12:52 AM PDT

This IDX solution is (c) Diverse Solutions 2026.

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San Antonio real estate information provided by Becker Properties, LLC. We don't assume any liability or responsibility for the operation or content of linked resources, nor for any interpretations, comments, graphics, or opinions contained therein. All information deemed reliable, but not verified or guaranteed. Becker Properties is a licensed real estate brokerage in the State of Texas and supporter of Fair Housing law.


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