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For sale
  • Price cut: $101K (6/26)
    $1,588,888

    6727 Sunnyslope Ave, Castro Valley, CA 94552

    4beds
    2,954sqft
    : 
    $10,492/mo
    Get pre-qualified
    Residential, Single Family Residence
    Built in 1979
    0.89 Acres Lot
    $1,533,000 Zestimate®
    $538/sqft
    $-- HOA

    What's special

    Mature treesGenerous workshopSurrounded by abundant wildlifeOpen-concept kitchenEast-facing hillside retreatSpacious family roomLarge office
    **OPEN HOUSE 7/26 Sunday 1-4** Perfect for multi-generational living, this exceptional east-facing hillside retreat is tucked away on a private 0.89-acre two parcel lot in the highly sought-after Castro Valley hills & a truly peaceful natural setting. Surrounded by abundant wildlife, mature trees, & sweeping bay, sunset & hillside views, this unique home offers the tranquility of country living while remaining less than 2 miles from freeway access & everyday conveniences. The thoughtfully designed main level features two spacious primary suites, each with its own private bathroom, plus an additional bedroom and guest half bath. The open-concept kitchen flows seamlessly into the Great Room & dining area beneath soaring vaulted open-beam ceilings, creating an inviting space for everyday living & entertaining. The kitchen has also been pre-plumbed for propane should a gas cooktop be desired. Central air conditioning & dual-zone heating provide year-round comfort. Outdoor living is equally impressive with 3 newly built decks, including one pre-plumbed with propane for a BBQ, offering multiple places to relax, entertain, & enjoy the peaceful surroundings. The expansive primary suite opens to its own private deck where you can unwind while taking in spectacular views. The versatile lower level offers exceptional flexibility with a spacious family room, large office (which could be a 4th bedroom), full bathroom, private entrance, patio, & a spiral staircase connecting both levels. Whether used for extended family, guests, a home office, or potential independent living, the flexible floor plan adapts to a variety of lifestyles. The electrical panel has ample capacity for adding additional cooking facilities on the lower level if desired. Car enthusiasts, hobbyists, & outdoor adventurers will appreciate the attached spacious 2-car garage, generous workshop, RV/boat garage, & separate dual driveways providing independent access & additional parking. The laundry room has connections for a gas or an electric dryer. Home, roof, termite, septic, & well inspections have been completed, & all Section 1 termite repairs have already been finished as well as a large portion of the items called out on the home inspection report, providing added peace of mind. Rarely does a property combine privacy, versatility, breathtaking natural beauty, & convenient Castro Valley living in one remarkable package.
    31 days
    |
    1,489
    |
    44
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Bob Frey DRE #01324680 510-220-8459,

    Re/max Accord,

    Kailani Frey Breitinger DRE #02137730 510-566-5442,

    Re/max Accord

    Source: Bay East AOR,MLS#: 41139764MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 4
      • Bathrooms: 4
      • Full bathrooms: 3
      • Partial bathrooms: 1
      Rooms
      • Room types: 3 Bedrooms, 2.5 Baths, Family Room, Office
      Bathroom
      • Features: Shower Over Tub, Tile, Stall Shower
      Kitchen
      • Features: 220 Volt Outlet, Tile Counters, Dishwasher, Double Oven, Electric Range/Cooktop, Disposal, Ice Maker Hookup, Kitchen Island, Oven Built-in
      Heating
      • Zoned, Other, Propane
      Cooling
      • Ceiling Fan(s), Central Air
      Appliances
      • Included: Dishwasher, Double Oven, Electric Range, Plumbed For Ice Maker, Oven, Electric Water Heater, Gas Water Heater
      • Laundry: Gas Dryer Hookup, In Garage, Electric
      Features
      • Flooring: Hardwood, Tile, Vinyl, Carpet
      • Windows: Double Pane Windows
      • Number of fireplaces: 1
      • Fireplace features: Living Room, Stone, Wood Burning
      Interior area
      • Total structure area: 2,954
      • Total interior livable area: 2,954 sqft

      Property

      Parking
      • Total spaces: 2
      • Parking features: Attached, Direct Access, Boat, Garage Door Opener, RV Access/Parking, RV Garage, RV Storage
      • Garage spaces: 2
      Features
      • Levels: Two
      • Stories: 2
      • Patio & porch: Deck, Patio, Porch
      • Pool features: None
      • Has view: Yes
      • View description: Canyon, Hills
      Lot
      • Size: 0.89 Acres
      • Features: Premium Lot, Back Yard, Front Yard, Side Yard
      Details
      • Parcel number: 85A1550233
      • Special conditions: Standard

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Ranch
      • Property subtype: Residential, Single Family Residence
      Materials
      • Stucco
      • Foundation: Raised
      • Roof: Tile
      Condition
      • Existing
      • New construction: No
      • Year built: 1979

      Utilities & green energy

      • Electric: No Solar, 220 Volts in Kitchen, 220 Volts in Laundry
      • Sewer: Septic Tank
      • Water: Well

      Community & HOA

      Community
      • Security: Carbon Monoxide Detector(s), Smoke Detector(s)
      • Subdivision: Castro Valley
      HOA
      • Has HOA: No
      Location
      • Region: Castro Valley

      Financial & listing details

      • Price per square foot: $538/sqft
      • Tax assessed value: $686,567
      • Price range: $1.6M - $1.6M
      • Date on market: 6/26/2026
      • Listing agreement: Excl Right
      • Listing terms: Cash,Conventional,FHA,VA Loan
      • Electric utility on property: Yes

        Estimated market value

        $1,533,000

        $1.46M - $1.61M

        $6,196/mo

        Price history

        DateEventPrice
        6/26/2026Price change$1,588,888-6%$538/sqft
        Source: Bay East AOR #41139764 Report a problem
        4/17/2026Listed for sale$1,689,900+271.4%$572/sqft
        Source: Bay East AOR #41131261 Report a problem
        6/10/1998Sold$455,000+49.2%$154/sqft
        Source: Bay East AOR #10508823 Report a problem
        7/14/1994Sold$305,000$103/sqft
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025-- $686,567 +2%
        2024$8,127 +1.3%$673,108 +2%
        2023$8,021 +1.7%$659,912 +2%
        2022$7,888 +2.5%$646,973 +2%
        2021$7,695 +2.2%$634,288 +1%
        2020$7,527 -1.7%$627,786 +2%
        2019$7,655 +5.5%$615,480 +2%
        2018$7,257 $603,414 +2%
        2017$7,257 +5.1%$591,585 +2%
        2016$6,903 +7.5%$579,987 +1.5%
        2015$6,420 $571,276 +2%
        2014$6,420 $560,087 +0.5%
        2013-- $557,559 +2%
        2012-- $546,628 +2%
        2011-- $535,912 +0.8%
        2010-- $531,910
        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.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
        See how much you could borrow to make a competitive offer.

        Climate risks

        Neighborhood: 94552

        Getting around

        0 / 100
        Car-Dependent
        0 / 100
        No Nearby Transit
        2 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • District: CASTRO VALLEY UNIFIED SCHOOL DISTRICT

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

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