1000 SIENA SUNSET RD TX 78641
| Owner | WHALEN PAMELA JANE & |
|---|---|
| Parcel ID | 0512550130 |
| Short ID | 947448 |
| Type | Real |
| Use Code | 01 Single-Family Residence |
| Valuation | Cost |
| Improvement SF | 3,242 SF |
| Land SF | 9,096 SF |
| Acres | 0.209 |
| Year Built | 2022 |
| Legal | LOT 8 BLK E TRAVISSO PHS 3 SEC 8 |
| Neighborhood | T4500 |
| Land | $368,839 |
|---|---|
| Special Use Land Market | Not Available |
| Total Land | $368,839 |
| Improvement | $548,298 |
|---|---|
| Total Improvement | $548,298 |
| Market | $917,137 |
|---|---|
| Special Use Exclusion (−) | Not Available |
| Appraised | $917,137 |
| Value Limitation Adjustment (−) | — |
| Net Appraised (assessed) | $917,137 |
| Exemptions (−) (HS) | −$183,427 |
|---|---|
| Taxable Value | $733,710 |
Appreciation: Market value has risen +233.5% from $275,000 (2024) to $917,137 (2025), a CAGR of 233.5% over 1 year. This is strong appreciation — well above typical inflation. Most of this growth came in a single year (2024→2025), not a steady climb — worth checking what drove that reappraisal rather than assuming a smooth trend. Over the same span, the median Land/Vacant parcel countywide rose +28.8%, so this parcel has outpaced the broader land/vacant market over the same period.
Tax Burden: The combined rate across 6 taxing entities is 2.5114% in 2025 (+0.0586% vs 2024 — rates increased ). At the current taxable value, estimated annual taxes are $18,427. Leander ISD is the largest single contributor, at 41.1% of the total 2025 levy.
Asset Class: Land / Vacant. This is valued using the cost approach, tied more to replacement cost and physical condition than to income performance.
Value Composition: Land carries 40% of market value ($368,839 land vs $548,298 improvements), about $41/SF of land. Most value sits in the improvements, so building condition, age (~4 yrs), and rent roll drive the underwriting.
Submarket Position: At $917,137, this parcel sits in the top quartile (≥75th percentile) of Land/Vacant property in Travis County — county median $85,028 (P25 $24,862 / P75 $363,420, n=35,611). Land/Vacant here is the broad TCAD category — every land/vacant 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.
Forward Outlook: Holding the +233.5% Base-scenario CAGR (Based on 2021–2025 certified trend, projected forward from 2025), the model projects market value near $378,391,888 by 2030, with an estimated annual tax burden around $32,032. Estimated Forward figures are model projections, not certified — see the 6-Year Projection section for the low/base/high bands.
No delinquent taxes on record.
9 components · show ▾hide ▴
| Code | Description | SF | In Gross |
|---|---|---|---|
| 095 | HVAC RESIDENTIAL | 3,242 SF | ✗ |
| 1ST | 1st Floor | 2,146 SF | ✓ |
| 2ND | 2nd Floor | 1,096 SF | ✓ |
| 041 | GARAGE ATT 1ST F | 685 SF | ✓ |
| 011 | PORCH OPEN 1ST F | 198 SF | ✗ |
| 252 | BEDROOMS | 4 SF | ✓ |
| 251 | BATHROOM | 3 SF | ✓ |
| 250 | HALF BATHROOM | 1 SF | ✓ |
| 522 | FIREPLACE | 1 SF | ✓ |
Market value changed by 323% in 2022, flagged as unusually large. Verify against comparable sales before using this value in underwriting.
| 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% | $8,446.70 | $8,446.70 | Paid |
| CLE City of Leander | 0.4797% | 0.4323% | 0.4173% | 0.4173% | 0.4173% | +0.0000% | $3,788.78 | $3,788.78 | Paid |
| U7P Travis County MUD #20 | 0.3950% | 0.3950% | 0.3950% | 0.3950% | 0.4100% | +0.0150% | $3,760.26 | $3,760.26 | Paid |
| TCO Travis County | 0.3574% | 0.3182% | 0.3047% | 0.3444% | 0.3758% | +0.0314% | $2,757.61 | $2,757.61 | Paid |
| ACT Austin Community College | 0.1048% | 0.0987% | 0.0986% | 0.1013% | 0.1034% | +0.0021% | $938.84 | $938.84 | Paid |
| THD Travis Central Health | 0.1118% | 0.0987% | 0.1007% | 0.1080% | 0.1180% | +0.0101% | $865.95 | $865.95 | Paid |
| Combined Rate | 2.7857% | 2.6175% | 2.4249% | 2.4529% | 2.5114% | +0.0586% | $20,558.14 | $20,558.14 | Paid |
| 2026 Certified Certified | 2025 Certified Certified | Change 2025→2026 | |
|---|---|---|---|
| Market Value | $820,777 | $917,137 | -10.5% |
| Assessed Value | $820,777 | $917,137 | -10.5% |
| Land Value | $268,247 | $368,839 | -27.3% |
| Improvement Value | $552,530 | $548,298 | +0.8% |
| Taxable Value | $656,622 | $733,710 | -10.5% |
| Exemptions | HS | HS | |
| Total Tax 2026 = estimate |
~$16,491
Estimated
|
~$20,558
Partial
|
ⓘ |
| 2026 Preliminary Preliminary | 2026 Certified Certified | Change | |
|---|---|---|---|
| Market Value | $820,777 | $820,777 | +0 (+0.0%) |
| Taxable Value | $656,622 | $656,622 | +0 (+0.0%) |
| Year | Market Value | Land Value | Imprv Value | Value Limitation Adj (−) | Net Appraised (Assessed) | Taxable Value | Total Tax | Source |
|---|---|---|---|---|---|---|---|---|
| 2026 | $820,777 | $268,247 | $552,530 | — | $820,777 | $656,622 | Not yet — post-cert | Certified — no billing yet |
| 2025 | $917,137 | $368,839 | $548,298 | — | $917,137 | $733,710 | ~$20,558 | Partial |
| 2024 | $275,000 | — | — | — | $343,750 ! | $— | $21,458 | Verified |
| 2023 | $— | — | — | — | $220,000 | $— | $5,335 | Verified |
| 2022 | $— | — | — | — | $68,750 | $— | $1,800 | Verified |
| 2021 | $— | — | — | — | $16,250 | $— | $453 | Verified |
| Year | MktVal YoY | Assessed YoY | Asmt Ratio | Eff. Tax Rate | Coverage |
|---|---|---|---|---|---|
| 2026 | -10.5% | -10.5% | ~100% | Not available | Partial |
| 2025 | -4.1% | -4.1% | ~100% | Not available | Partial |
| 2024 | +334.7% ! | +334.7% | ~100% | 2.2400% | Verified |
| 2023 | +220.0% ! | +220.0% | ~100% | 2.4200% | Verified |
| 2022 | +323.1% ! | +323.1% | ~100% | 2.6200% | Verified |
| 2021 | base year | — | ~100% | No billing data | Verified |
| Cumulative market value growth (earliest valid year → 2025): +5543.9% | |||||
| 12 Month | Hist. Avg | Forecast Avg | Peak | When | Trough | When | |
|---|---|---|---|---|---|---|---|
| Market Value Growth | -10.5% | +111.5% | +241.3% | +233.5% | 2025 | -10.5% | 2026 |
| Assessment Ratio | 100.0% | 108.3% | — | 125.0% | 2024 | 100.0% | 2025 |
| Effective Tax Rate (2025) | 2.2400% | 2.2400% | — | 2.2400% | 2025 | 2.2400% | 2025 |
|
Tax Amount
⚑ 2025 total is a derived or partial figure, not independently confirmed |
$20,558 | $21,008 | ~$28,243 | $21,458 | 2024 | $20,558 | 2025 |
| Year | ~Mkt Value | ~Assessed | ~Rate | ~Ann. Tax | Value Δ |
|---|---|---|---|---|---|
| 2026 | ~$3,058,692 | ~$1,008,851 | ~2.4429% | ~$24,645 | +233.5% |
| 2027 | ~$10,200,871 | ~$1,109,736 | ~2.3743% | ~$26,349 | +1012.3% |
| 2028 | ~$34,020,350 | ~$1,220,709 | ~2.3058% | ~$28,147 | +3609.4% |
| 2029 | ~$113,459,352 | ~$1,342,780 | ~2.2372% | ~$30,041 | +12271.0% |
| 2030 | ~$378,391,888 | ~$1,477,058 | ~2.1687% | ~$32,032 | +41157.9% |
| 2026 | ~$3,040,349 | ~$1,008,851 | ~2.5114% | ~$25,337 | +231.5% |
| 2027 | ~$10,078,890 | ~$1,109,736 | ~2.5114% | ~$27,870 | +999.0% |
| 2028 | ~$33,411,961 | ~$1,220,709 | ~2.5114% | ~$30,657 | +3543.1% |
| 2029 | ~$110,762,108 | ~$1,342,780 | ~2.5114% | ~$33,723 | +11976.9% |
| 2030 | ~$367,181,221 | ~$1,477,058 | ~2.5114% | ~$37,096 | +39935.6% |
| 2026 | ~$3,077,035 | ~$1,008,851 | ~2.4086% | ~$24,299 | +235.5% |
| 2027 | ~$10,323,586 | ~$1,109,736 | ~2.3058% | ~$25,588 | +1025.6% |
| 2028 | ~$34,636,080 | ~$1,220,709 | ~2.2029% | ~$26,892 | +3676.5% |
| 2029 | ~$116,205,560 | ~$1,342,780 | ~2.1001% | ~$28,200 | +12570.5% |
| 2030 | ~$389,874,724 | ~$1,477,058 | ~1.9973% | ~$29,501 | +42410.0% |
In 2025, this property's market value of $917,137 places it in the top 25% for Land/Vacant properties in Travis County (35611 comparable) — 11× the county median of $85,028. Land/Vacant here is the broad TCAD category — every land/vacant 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 | $917,137 | $24,862 | $85,028 | $363,420 | ↑ Top 25% | +2.1% |
| 2024 | $275,000 | $23,000 | $66,000 | $330,000 | ↑ Above median | +0.0% |
| 2023 | — | $25,000 | $71,500 | $271,439 | — | +0.0% |
| 2022 | — | $15,000 | $55,000 | $180,463 | — | +100.0% |
| 2021 | — | $6,000 | $14,480 | $80,000 | — | base yr |
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.