4400 County Road 123
Round Rock, TX, 78664 $ 750,000
Bedrooms-- Baths-- Sq 2,025 for $750,000. This 2,025 square foot property was built in 1978 on a lot size of 1.
Property offers potential for a variety of uses, including possible commercial applications, subject to buyer verification. Versatile property with a metal building. No known restrictions per seller; however, buyer to independently confirm zoning, restrictions, and intended use. Rare 1 acre property featuring a fully updated, taken-to-the-studs, ~$523K remodel on a 1 story home plus an exceptional 900 sqft insulated workshop which includes a 200 sqft office space. ~$523K in upgrades, highly functional residence and workspace. The home includes approx. ~1,825 sq ft of added living area, Hardie siding, new plumbing with insulated Pex, fully replaced HVAC system with variable-speed AC and LP furnace, complete electrical upgrades including 200-amp service to both house and shop, new windows, new interior/exterior doors, new trim, and full flooring replacement (LVP/tile/carpet). Kitchen and baths feature custom cabinetry, new granite countertops, soft-close hardware, and full appliance replacements. New roof, blown-in attic insulation, LED lighting throughout, fireplace rebuild, full laundry/utility room addition, 4th bedroom, privacy fencing, new driveway, sidewalks, + extensive landscape upgrades. The 30’x30’ workshop has insulated walls/roof (closed-cell spray foam), (2) 16’ electric lift insulated doors, 40” soaker sink with water heater, temperature-controlled exhaust system, separate 200-amp service, 30-amp generator plug, dedicated appliance circuits, interior/exterior 220V plugs, conditioned 20’x10’ office with storage, reclaimed-wood exterior accents, and LED interior/exterior lighting, plus a covered trailer/storage bay with gate access. Backyard paradise that backs into the creek. A fully modernized home—in a prime Round Rock location with quick access to toll roads & highways, Samsung, Dell, Amazon, Emerson, etc. **Ask for 3-page upgrade sheet. All information deemed reliable. Buyer to verify all information.
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FeaturesGeneralSewer Septic Tank
Heating Central
Cooling Central Air
Utilities Electricity Available Propane
Construction Materials Brick Veneer Masonry – Partial
Year Built 1978
View City
Property Subtype Business
Tax Year 2025
Current Use Residential
Accessibility None
County Williamson
Operating Expense 0
New Construction N
Property Type Commercial Sale
Energy Efficient None
Subdivision Name Low Water Crossing On Brushy Creek
Building Features Appliances Electric Dryer Connections Fenced Outside Storage Fixtures Kitchen Equipment Living Area Open Space Private Restrooms Separate Shower Storage Storage Area(s) Washer Connections Washer/Drye
Green Sustainability None
Other Structures None
Status Active
Directions east on HW 79 right on Red Bud left on CR 123
City Round Rock
Disclosures See Remarks
MLS Area HU
Lot Size Square Feet 43560
Tax Annual Amount 6859.86
Property Condition Resale
Additional Parcels Y/N N
Leasable Area 2025
Lease Type None
Standard Status Active
Year Built Source Public Records
Tax Assessed Value 389979
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InteriorFlooring Carpet Tile Vinyl
Total Bedrooms 0
Total Baths 0
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ExteriorParking Features Attached
Water Source Public
Total Parking 6
Foundation Details Slab
Number of Buildings 2
Building Area Total 2025
Lot Size Acres 1
Waterfront Y/N N
Other Equipment See Remarks
Horse Y/N N
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* Excluded FeaturesList ByRobert FischerListing Agent
Keller Williams Realty-RrBroker
NearbyAbout Round Rock, TX 116,887 Population
95% Since 2002
$ 76,087 Median Income
34.29 Median Age
41% Households with Children
Trends Information provided by ATTOM Data Solutions.
3038596 Elementary School
3038443 Middle School
Unknown High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 4/10/2026 | $750,000 | | Listed Price |