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For sale
    • Price cut: $30K (11/2)
    $1,469,000

    310 Castano Avenue, Alamo Heights, TX 78209

    4beds
    3,213sqft
    : 
    $10,469/mo
    Get pre-qualified
    Single Family Residence
    Built in 1940
    7,492 Square Feet Lot
    $1,410,000 Zestimate®
    $457/sqft
    $-- HOA

    What's special

    Inviting setting for gatheringsOversized patioGracious living spacesCustom built-in storagePrivate resort-inspired settingGenerous walk-in showerImpressive custom walk-in closet
    Set among mature trees and lush landscapeding, this exceptional 4-bedroom, 4-bathroom home with DETACHED QUARTERS captures the 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.
    140 days
    1,234
    91

    Likely to sell faster than

    Zillow last checked:

    Listing updated:

    Listed by:

    Deanna Wright TREC #566830 (210) 373-1553,

    Kuper Sotheby's Int'l Realty

    Source: LERA MLS,MLS#: 1968391MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 4
      • Bathrooms: 4
      • Full bathrooms: 4
      Primary bedroom
      • Features: Split, Sitting Room, Walk-In Closet(s), Ceiling Fan(s), Full Bath
      • Area: 255
      • Dimensions: 17 x 15
      Bedroom 2
      • Area: 156
      • Dimensions: 13 x 12
      Bedroom 3
      • Area: 196
      • Dimensions: 14 x 14
      Bedroom 4
      • Area: 144
      • Dimensions: 12 x 12
      Primary bathroom
      • Features: Shower Only, Double Vanity
      • Area: 72
      • Dimensions: 9 x 8
      Dining room
      • Area: 180
      • Dimensions: 15 x 12
      Family room
      • Area: 306
      • Dimensions: 18 x 17
      Kitchen
      • Area: 255
      • Dimensions: 17 x 15
      Living room
      • Area: 210
      • Dimensions: 14 x 15
      Heating
      • Central, Natural Gas
      Cooling
      • 13-15 SEER AX, 16+ SEER AC, Ceiling Fan(s), Two Central
      Appliances
      • Included: Cooktop, Built-In Oven, Self Cleaning Oven, Microwave, Gas Cooktop, Refrigerator, Disposal, Dishwasher, Gas Water Heater, ENERGY STAR Qualified Appliances
      • Laundry: Upper Level, Washer Hookup, Dryer Connection
      Features
      • Two Living Area, Liv/Din Combo, Eat-in Kitchen, Two Eating Areas, Kitchen Island, Breakfast Bar, Pantry, Study/Library, Game Room, Loft, Utility Room Inside, Secondary Bedroom Down, 1st Floor Lvl/No Steps, High Ceilings, Open Floorplan, High Speed Internet, Walk-In Closet(s), Master Downstairs, Ceiling Fan(s), Chandelier, Solid Counter Tops, 2nd Floor Utility Room, Custom Cabinets, Programmable Thermostat
      • Flooring: Carpet, Ceramic Tile, Wood
      • Windows: Double Pane Windows, Low Emissivity Windows, Window Coverings, Skylight(s)
      • Has basement: No
      • Attic: Partially Finished
      • Number of fireplaces: 1
      • Fireplace features: One, Living Room
      Interior area
      • Total interior livable area: 3,213 sqft
      Video & virtual tour

      Property

      Parking
      • Total spaces: 4
      • Parking features: Two Car Garage, Detached, Garage Apartment, Garage Door Opener, Two Car Carport
      • Garage spaces: 2
      • Carport spaces: 2
      • Covered spaces: 4
      Features
      • Levels: Two
      • Stories: 2
      • Patio & porch: Patio, Covered
      • Exterior features: Sprinkler System, Rain Gutters
      • Has private pool: Yes
      • Pool features: In Ground, Heated
      • Has spa: Yes
      • Spa features: Heated
      • Fencing: Privacy
      Lot
      • Size: 7,492 Square Feet
      • Features: 1/4 - 1/2 Acre, Level, Curbs, Streetlights, Fire Hydrant w/in 500'
      • Residential vegetation: Mature Trees, Mature Trees (ext feat)
      Details
      • Additional structures: Detached Quarters, Second Residence
      • Parcel number: 040241930080
      • Other equipment: Satellite Dish

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Tudor
      • Property subtype: Single Family Residence
      Materials
      • Stone, Stucco, Masonry/Steel
      • Foundation: Slab
      • Roof: Metal
      Condition
      • Pre-Owned
      • New construction: No
      • Year built: 1940

      Utilities & green energy

      • Electric: CPS
      • Gas: CPS
      • Sewer: ALAMO HGTS
      • Water: ALAMO HGTS
      • Utilities for property: Cable Available

      Community & HOA

      Community
      • Features: None
      • Security: Smoke Detector(s), Prewired
      • Subdivision: Alamo Heights
      Location
      • Region: Alamo Heights

      Financial & listing details

      • Price per square foot: $457/sqft
      • Tax assessed value: $1,026,920
      • Annual tax amount: $21,267
      • Price range: $1.5M - $1.5M
      • Date on market: 6/18/2026
      • Cumulative days on market: 141 days
      • Listing terms: Conventional,Cash
      • Road surface type: Paved

        Estimated market value

        $1,410,000

        $1.34M - $1.48M

        $5,682/mo

        Price history

        DateEventPrice
        11/2/2026Price change$1,469,000-2%$457/sqft
        Source: LERA MLS #1968391 Report a problem
        8/20/2026Price change$1,499,000-1.7%$467/sqft
        Source: LERA MLS #1968391 Report a problem
        7/31/2026Price change$1,525,000-2.2%$475/sqft
        Source: LERA MLS #1968391 Report a problem
        7/6/2026Price change$1,559,000-2.3%$485/sqft
        Source: LERA MLS #1968391 Report a problem
        6/18/2026Listed for sale$1,595,000$496/sqft
        Source: LERA MLS #1968391 Report a problem
        3/24/2006Sold--
        Source: LERA MLS #568531 Report a problem
        12/6/2005Sold--
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2026-- $1,026,920
        2025$19,453 +6.3%$1,026,920 +4.6%
        2024$18,295 +5.3%$981,650 +7.2%
        2023$17,370 -2.8%$915,801 -0.5%
        2022$17,863 +6%$920,000 +21.6%
        2021$16,858 $756,860 +4.5%
        2020$16,858 -0.1%$724,160 -0.1%
        2019$16,869 $725,100 +4%
        2018$16,869 +10%$697,420 +6.1%
        2017$15,341 -12.4%$657,490 -12.3%
        2016$17,508 +10.8%$749,310 +9.2%
        2015$15,795 $686,300 +2.2%
        2014$15,795 $671,380 +4%
        2013-- $645,610 +1.1%
        2012-- $638,460 +7.9%
        2011-- $591,820
        2010-- $591,820 -4.5%
        2009-- $619,440 -4%
        2008-- $645,568 +10%
        2007-- $586,880 -0.5%
        2006-- $590,000 -5.6%
        2005-- $625,120
        2004-- --
        2003-- --
        2002-- --
        2001-- --
        2000-- --
        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

        Explore the cost of this home by adjusting the details. Changes won't be saved.
        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
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        Climate risks

        Neighborhood: 78209

        Getting around

        65 / 100
        Somewhat Walkable
        36 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • Elementary: Cambridge
        • Middle: Alamo Heights
        • High: Alamo Heights
        • District: Alamo Heights I.S.D.

        Source: LERA MLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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