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CondominiumResidential

3651 Sandy Brook Dr

ROUND ROCK, TX 78665
2016
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.
Built 20163 floors51 units1,613–2,270 ft²
$14M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$343K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$177
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+8.5%vs the Round Rock ZIP median sale $/ft² ($163)

Sales Performance

$253K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
2.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.

1 arms-length sales on record for this building.

Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.

Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
$293K$354K$414K$475K1,627 ft²1,756 ft²1,884 ft²2,013 ft²2,141 ft²2,270 ft²
Studio3 bd4+ bd
Studio
16 units
3 bed
32 units
4 bed
3 units
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
3 bd · 2 ba · 1,766 ft²
4 units
Studio · 3 ba · 1,634 ft²
2 units
3 bd · 3 ba · 1,770 ft²
2 units
3 bd · 3 ba · 1,964 ft²
2 units
Studio · 2.5 ba · 1,970 ft²
2 units
3 bd · 2 ba · 2,013 ft²
2 units
Studio · 3 ba · 2,042 ft²
2 units
3 bd · 2.5 ba · 2,048 ft²
2 units
One-off layouts
33 units

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$293K–$315K
7 units
$322K–$337K
12 units
$340K–$359K
14 units
$361K–$377K
6 units
$475K–$475K
1 unit

Value by Floor & LineAverage estimated price per square foot by floor range, using unit numbers to infer floors. Higher floors usually price higher — the gap shows how much the view is worth here.

Floor 1
$176/ft²
Floor 2
$179/ft²
Floor 3
$176/ft²
Unit lines by $/ft²Condo units stacked vertically share a unit line — the last digits of the unit number (like 05 in 1205, 1305, 1405). Lines share a layout and exposure, so comparing estimated $/ft² by line shows which position in the building commands a premium.
Line ·04
$196/ft²
Line ·02
$178/ft²
Line ·00
$177/ft²

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.68%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.18%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.5.9 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.0%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.69%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$340,826
Median tax billThe middle annual property tax bill among the building's units.$6,186
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0

Recent SalesThe latest recorded arms-length sales in the building, newest first.

Unit 229Jul 20, 2026$253,005

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyWilliamson
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2017
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.BalconyPorch · 152 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Union Hill Elementary SchoolC-
Elementary · Grades PK–5 · 0.5 mi
M
Hopewell Middle SchoolB-
Middle · Grades 6–8 · 0.6 mi
H
Stony Point High SchoolC+
High · Grades 9–12 · 2.0 mi

District: Round Rock Independent School District

Neighborhood · ZIP 78665These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.50
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.17

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.68,564
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,056 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$112,731
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$135,299
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.

3651 Sandy Brook Dr Unit 100
3 ba · 1,903 ft²
$328K
3651 Sandy Brook Dr Unit 102
3 bd · 3 ba · 2,008 ft²
$353K
3651 Sandy Brook Dr # 104
3 bd · 2 ba · 1,945 ft²
$340K
3651 Sandy Brook Dr # 106
3 bd · 2 ba · 1,854 ft²
3651 Sandy Brook Dr Unit 107
3 bd · 2 ba · 1,766 ft²
$315K
3651 Sandy Brook Dr Unit 108
3 bd · 3 ba · 1,972 ft²
3651 Sandy Brook Dr Unit 109
3 bd · 2 ba · 1,982 ft²
$351K
3651 Sandy Brook Dr Unit 110
3 bd · 3 ba · 2,021 ft²
$355K
3651 Sandy Brook Dr Unit 111
3 ba · 2,042 ft²
$359K
3651 Sandy Brook Dr Unit 112
3 bd · 3 ba · 1,854 ft²
3651 Sandy Brook Dr Unit 114
3 ba · 1,982 ft²
$357K
3651 Sandy Brook Dr # 200
2.5 ba · 1,970 ft²
$346K
3651 Sandy Brook Dr # 202
2.5 ba · 1,814 ft²
$313K
3651 Sandy Brook Dr Unit 204
3 ba · 2,042 ft²
$475K
3651 Sandy Brook Dr Unit 206
3 ba · 1,634 ft²
3651 Sandy Brook Dr Unit 208
3 bd · 2 ba · 1,766 ft²
$315K
3651 Sandy Brook Dr Unit 210
3 bd · 2 ba · 1,964 ft²
$348K
3651 Sandy Brook Dr Unit 212
3 bd · 2 ba · 1,647 ft²
$296K
3651 Sandy Brook Dr Unit 214
3 bd · 3 ba · 1,901 ft²
$324K
3651 Sandy Brook Dr Unit 215
3 bd · 3 ba · 2,205 ft²
$371K
3651 Sandy Brook Dr Unit 216
3 bd · 2 ba · 1,766 ft²
3651 Sandy Brook Dr # 217
3 bd · 2.5 ba · 2,048 ft²
$377K
3651 Sandy Brook Dr Unit 218
3 bd · 3 ba · 1,685 ft²
$296K
3651 Sandy Brook Dr Unit 219
3 bd · 3 ba · 1,770 ft²
$322K
3651 Sandy Brook Dr Unit 220
3 ba · 1,986 ft²
$354K
3651 Sandy Brook Dr Unit 221
3 bd · 3 ba · 1,613 ft²
3651 Sandy Brook Dr Unit 222
3 bd · 3 ba · 1,964 ft²
$348K
3651 Sandy Brook Dr Unit 223
3 ba · 2,064 ft²
$361K
3651 Sandy Brook Dr Unit 224
3 bd · 3 ba · 1,627 ft²
$301K
3651 Sandy Brook Dr Unit 225
3 bd · 3 ba · 1,873 ft²
$327K
3651 Sandy Brook Dr Unit 226
3 bd · 2 ba · 1,766 ft²
3651 Sandy Brook Dr Unit 227
4 bd · 3 ba · 1,770 ft²
$331K
3651 Sandy Brook Dr Unit 228
3 bd · 3 ba · 1,964 ft²
3651 Sandy Brook Dr # 229
3 bd · 2.5 ba · 2,048 ft²
$348K
3651 Sandy Brook Dr Unit 230
3 ba · 1,620 ft²
3651 Sandy Brook Dr Unit 232
3 ba · 2,044 ft²
$372K
3651 Sandy Brook Dr # 233
2.5 ba · 1,800 ft²
$332K
3651 Sandy Brook Dr Unit 234
3 bd · 3 ba · 1,834 ft²
3651 Sandy Brook Dr # 235
2.5 ba · 1,970 ft²
$324K
3651 Sandy Brook Dr Unit 236
3 bd · 2 ba · 2,013 ft²
$351K
3651 Sandy Brook Dr Unit 237
3 bd · 3 ba · 1,770 ft²
$323K
3651 Sandy Brook Dr Unit 238
3 bd · 2 ba · 2,013 ft²
$353K
3651 Sandy Brook Dr Unit 239
3 ba · 1,634 ft²
$293K
3651 Sandy Brook Dr Unit 240
3 ba · 1,970 ft²
$348K
3651 Sandy Brook Dr Unit 300
3 bd · 3 ba · 1,809 ft²
$332K
3651 Sandy Brook Dr Unit 301
3 bd · 2 ba · 2,048 ft²
$337K
3651 Sandy Brook Dr Unit 302
3 ba · 1,795 ft²
$333K
3651 Sandy Brook Dr # 303
3 bd · 2 ba · 2,021 ft²
3651 Sandy Brook Dr Unit 304
4 bd · 3 ba · 2,048 ft²
$371K
3651 Sandy Brook Dr Unit 305
3 bd · 2 ba · 1,866 ft²
$330K
3651 Sandy Brook Dr Unit 306
4 bd · 3 ba · 2,270 ft²
$373K

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

About 3651 Sandy Brook Dr

How many units are in 3651 Sandy Brook Dr, Round Rock, TX?

3651 Sandy Brook Dr, Round Rock, TX has 51 residential units across 3 floors, built in 2016, according to county assessor records.

What is a unit at 3651 Sandy Brook Dr, Round Rock, TX worth?

The median TopHap Estimate across the 51 units at 3651 Sandy Brook Dr, Round Rock, TX is $343,022. That works out to $177 per square foot. Units run from 1,613 to 2,270 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 3651 Sandy Brook Dr, Round Rock, TX expensive for Round Rock?

Units at 3651 Sandy Brook Dr, Round Rock, TX carry a median of $177 per square foot, 8% above the Round Rock median of $163 per square foot.

How often do units sell at 3651 Sandy Brook Dr, Round Rock, TX?

1 units at 3651 Sandy Brook Dr, Round Rock, TX sold in the last 12 months, out of 1 recorded arms-length sales all time. That is a turnover rate of 2.0% of the building per year. The median sale over that period was $253K.

What floor plans does 3651 Sandy Brook Dr, Round Rock, TX have?

The most common plan at 3651 Sandy Brook Dr, Round Rock, TX is a 3-bedroom of 1,766 square feet, repeated 4 times, with a median estimate of $315,135. TopHap identifies 8 recurring plans in the building.

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