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4400 County Road 123
Round Rock, TX, 78664
$800,000
4 Beds
2 Baths
2,025 SqFt
1 Acres
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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. Properties offering this combination of land, full remodel quality, and a modern shop setup are extremely limited in this area. The ~$523K in upgrades completed deliver a turnkey, 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 (KitchenAid double oven, microwave, dishwasher, 36” gas cooktop, GE exhaust vent). More improvements include new dimensional roof, blown-in attic insulation, LED lighting throughout, fireplace rebuild, full laundry/utility room addition, new 4th bedroom, privacy fencing, new driveway, sidewalks, + extensive landscape upgrades. The 30’x30’ workshop is a major highlight with 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. A covered trailer/storage bay with gate access adds even more utility. All with a backyard paradise that backs into the creek. Ideal for owners needing land, shop space, functionality, and 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

Property Details

Price:
$800,000
MLS #:
3238865
Status:
Active
Beds:
4
Baths:
2
Address:
4400 County Road 123
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
Low Water Crossing On Brushy Creek
City:
Round Rock
Listed Date:
Dec 10, 2025
State:
TX
Finished Sq Ft:
2,025
ZIP:
78664
Lot Size:
43,560 sqft / 1.00 acres (approx)
Year Built:
1978
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Schools

School District:
Hutto ISD
Elementary School:
Hutto
Middle School:
Hutto
High School:
Hutto

Interior

Appliances
Dishwasher, Gas Cooktop, Microwave, Oven
Bathrooms
2 Full Bathrooms
Cooling
Central Air
Fireplaces Total
1
Flooring
Carpet, Tile, Vinyl
Heating
Central

Exterior

Community Features
None
Exterior Features
None
Other Structures
None
Parking Features
Attached
Roof
Composition

Financial

Taxes
$6,860

Map

Community

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4400 County Road 123
Round Rock, TX