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15507 ROUND MOUNTAIN RD TX 78641

Travis County, TX · Agricultural Appraisal: 2025 Certified Billing: 2025 Partial 2021–24 billing ✓
At a Glance
2025 Certified
Market Value
$2,004,128
2025 Verified
Taxable Value
$338,705
2025 Verified (83% below market)
Total Tax
~$6,022
2025 Partial
Effective Tax Rate (2025)
0.3000%
2025 Tax ÷ 2025 Market Value Partial
2026 Certified
Market Value
$1,588,570
-20.7% 2025 → 2026 Certified
Taxable Value
$372,368
2026 Certified (77% below market)
Est. 2026 Total Tax
~$7,016
2026 Estimated
Est. 2026 Effective Tax Rate
0.4417%
Est. 2026 Tax ÷ 2026 Market Value Estimated
At a Glance Tax Bill History Compares Resources
2026 Property Tax Calendar ◷ Today: September 18, 2026
Valuation Date
Jan 1
Notices Mailed
Apr 15
Protest Deadline
May 15
Roll Certified
Jul 25
Rates Adopted
Sep 1
Payment Due
Jan 31
Property Info
Owner AMORIN REVOCABLE TRUST
Parcel ID 0525670261
Short ID 711102
Type Real
Use Code 01 Single-Family Residence
Valuation Cost
Improvement SF 3,062 SF
Land SF 1,307,837 SF
Acres 30.024
Year Built 2005
Legal ABS 34 SUR 15 ALLEN G ACR 30.0238 (1-d-1w)
Neighborhood _RGN145
Current Values 2025 Certified
Land$1,297,968
Special Use Land MarketNot Available
Total Land $1,297,968
Improvement$706,160
Total Improvement $706,160
Market$2,004,128
Special Use Exclusion (−)Not Available
Appraised$2,004,128
Value Limitation Adjustment (−) (homestead cap)−$1,581,491
Net Appraised (assessed) $422,637
Exemptions (−) (HS)−$83,932
Taxable Value $338,705
Build-up from 2025 TCAD certified values. Land and Improvement are shown as single totals — Parcelytics' loaders capture one aggregate value per year, not TCAD's Homesite / Non-Homesite split. Special Use Land Market and Special Use Exclusion (agricultural/productivity valuation) are not in the current dataset.
Satellite View Imagery: Esri
Satellite image not available
We couldn't locate this property on the map — this can happen for parcels whose address our geocoder can't confidently match.
Investor Insight Report

Tax Burden: The combined rate across 6 taxing entities is 1.8841% in 2025 (+0.0525% vs 2024 — rates increased ). At the current taxable value, estimated annual taxes are $6,382. Leander ISD is the largest single contributor, at 51.0% of the total 2025 levy.

Assessment Gap: Assessed value ($422,637) is $1,581,491 below market value, suggesting potential for an upward assessment in future years.

Asset Class: Agricultural. Agricultural valuation may be subject to rollback taxes if land use changes. This is valued using the cost approach, tied more to replacement cost and physical condition than to income performance.


Investment Snapshot — 2025 certified basis
Building (Main)
3,062 SF
living area
Gross Building
7,454 SF
enclosed area
Land
1,307,837 SF
30.024 ac
Value / Bldg SF
$655
all-in (incl. land)
Land $/SF
$1
land value only
Land Value Share
65%
Year Built
2005
~21 yrs old
Eff. Tax Rate
0.300%
total tax ÷ market value
Assessment Ratio
21.1%
below typical ~100%
Est. Annual Tax
$6,382
2025 taxable × rate

Value Composition: Land carries 65% of market value ($1,297,968 land vs $706,160 improvements), about $1/SF of land. Land and improvements both carry meaningful weight; value is balanced between the structure and its site.

Submarket Position: At $2,004,128, this parcel sits in the top quartile (≥75th percentile) of Agricultural property in Travis County — county median $597,708 (P25 $207,536 / P75 $1,442,275, n=7,602). Agricultural here is the broad TCAD category — every agricultural property countywide, any size or use — not a use-code-specific peer group. See the Peer Set and the Where This Property Stands benchmark below, which narrows to this property's actual use code, for parcel-level comparables.

No delinquent taxes on record.

Improvement Detail
Improvement Value
$706,160
Main Area
3,062 SF
Gross Building Area
7,454 SF
Year Built
2005
12 components · show ▾hide ▴
Code Description SF In Gross
301 BARN SF 3,084 SF
095 HVAC RESIDENTIAL 3,062 SF
2ND 2nd Floor 1,718 SF
1ST 1st Floor 1,344 SF
011 PORCH OPEN 1ST F 853 SF
041 GARAGE ATT 1ST F 686 SF
288 SHED SF 360 SF
512 DECK UNCOVRED 178 SF
571 STORAGE DET 140 SF
581 STORAGE ATT 120 SF
251 BATHROOM 2 SF
604 POOL RES CONC 1 SF
Your Tax Bill, This Year
2025 Tax Burden — Entity Split
ILE
51.0% $3,072
TCO
21.1% $1,273
ACT
7.2% $432
E01
7.0% $423
E07
7.0% $422
THD
6.6% $400
Total: $6,022
Risk Indicators
Risk Indicators
No risk indicators flagged

No large value jumps, delinquencies, or data anomalies found for this parcel.

How We Got Here
Rate Environment
Historical Tax Rates by Entity (Travis County)
Entity 2021 Rate 2022 Rate 2023 Rate 2024 Rate 2025 Rate YoY (2024→25) Amt Due Amt Paid Balance
ILE Leander ISD 1.3370% 1.2746% 1.1087% 1.0869% 1.0869% +0.0000% $3,071.98 $3,071.98 Paid
TCO Travis County 0.3574% 0.3182% 0.3047% 0.3444% 0.3758% +0.0314% $1,273.01 $1,273.01 Paid
ACT Austin Community College 0.1048% 0.0987% 0.0986% 0.1013% 0.1034% +0.0021% $431.84 $431.84 Paid
E01 Travis County ESD # 01 0.1000% 0.1000% 0.1000% 0.1000% 0.1000% +0.0000% $422.64 $422.64 Paid
E07 Travis County ESD # 07 0.1000% 0.0784% 0.0842% 0.0910% 0.1000% +0.0090% $422.50 $422.50 Paid
THD Travis Central Health 0.1118% 0.0987% 0.1007% 0.1080% 0.1180% +0.0101% $399.75 $399.75 Paid
Combined Rate 2.1110% 1.9686% 1.7968% 1.8316% 1.8841% +0.0525% $6,021.72 $6,021.72 Paid
Value Trend
Value History 2021–2026
Current & Certified Values
2026 Certified Certified 2025 Certified Certified Change 2025→2026
Market Value $1,588,570 $2,004,128 -20.7%
Assessed Value $464,693 $422,637 +10.0%
Land Value $900,476 $1,297,968 -30.6%
Improvement Value $688,094 $706,160 -2.6%
Taxable Value $372,368 $338,705 +9.9%
Exemptions HS HS
HS Cap Loss -$1,123,877
Total Tax 2026 = estimate
~$7,016
Estimated
~$6,022
Partial
2026: Preliminary → Certified how this parcel's 2026 value moved since the June 9, 2026 preliminary notice
2026 Preliminary Preliminary 2026 Certified Certified Change
Market Value $1,588,570 $1,588,570 +0 (+0.0%)
Taxable Value $372,368 $372,368 +0 (+0.0%)
Value History (2021–2026)
Year Market Value Land Value Imprv Value Value Limitation Adj (−) Net Appraised (Assessed) Taxable Value Total Tax Source
2026 $1,588,570 $900,476 $688,094 −$1,123,877 $464,693 $372,368 Not yet — post-cert Certified — no billing yet
2025 $2,004,128 $1,297,968 $706,160 −$1,581,491 $422,637 $338,705 ~$6,022 Partial
2024 $— $— $5,601 Verified
2023 $— $— $4,887 Verified
2022 $— $— $5,906 Verified
2021 $— $— $5,599 Verified
Market Value vs. Taxable Value gap up to 83.1%
Year-over-Year Growth & Assessment Metrics
Year MktVal YoY Assessed YoY Asmt Ratio Eff. Tax Rate Coverage
2026 -20.7% +10.0% 29.2% Not available Partial
2025 -0.4% +10.0% 21.1% Not available Partial
2024 +53.5% +9.9% 19.1% 0.2800% Verified
2023 -17.3% +2.7% 26.7% 0.3700% Verified
2022 +65.9% +10.0% 21.5% 0.3700% Verified
2021 base year 32.4% No billing data Verified
Cumulative market value growth (earliest valid year → 2025): +109.7%
Annual Trends Tax billing 2025 only
How This Parcel Compares
6-Year Projection Estimates Only
Submarket Position
Where This Property Stands — Agricultural Benchmark

In 2025, this property's market value of $2,004,128 places it in the top 25% for Agricultural properties in Travis County (7602 comparable) — the county median of $597,708. Agricultural here is the broad TCAD category — every agricultural property countywide, any size or use — not a use-code-specific peer group. Use the Use Code filter above to narrow to this property's actual type.

Year This Property Bottom 25% Median Top 25% Position Group YoY
2025 $2,004,128 $207,536 $597,708 $1,442,275 ↑ Top 25% +0.0%
2024 $217,016 $597,296 $1,446,593 +23.7%
2023 $167,963 $453,916 $1,078,522 +0.0%
2022 $180,794 $446,888 $1,009,883 +46.1%
2021 $33,611 $103,166 $247,000 base yr
More Resources
Property Tax & County News Travis County · live feed
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Post-Acquisition Tax Estimate Estimate · Not a prediction
Property: 3,062 SF main area · 7,454 SF gross · 30.024 ac lot
$

Estimate only. The appraisal district sets value as of Jan 1 (not at sale price). A sale is strong evidence of market value and is typically reflected in the next Jan 1 valuation. Taxing units set rates annually. Modeled from government data — not a legal or tax opinion.