11815 ALTERRA PARKWAY TX 78758
| Owner | TR DOMAIN 10 LLC |
|---|---|
| Parcel ID | 0258080701 |
| Short ID | 911712 |
| Type | Real |
| Use Code | 50 Office Hi-Rise (≥6 Stories) |
| Valuation | Income |
| Improvement SF | 109,959 SF |
| Land SF | 193,842 SF |
| Acres | 4.450 |
| Year Built | 2020 |
| Legal | LOT D10 DOMAIN LOT D10 SUBD |
| Neighborhood | 50NWE |
| Land | $16,476,570 |
|---|---|
| Special Use Land Market | Not Available |
| Total Land | $16,476,570 |
| Improvement | $107,787,926 |
|---|---|
| Total Improvement | $107,787,926 |
| Market | $124,264,496 |
|---|---|
| Special Use Exclusion (−) | Not Available |
| Appraised | $124,264,496 |
| Value Limitation Adjustment (−) | — |
| Net Appraised (assessed) | $124,264,496 |
| Taxable Value | $124,264,496 |
|---|
Appreciation: Market value has risen +116.8% from $57,312,342 (2021) to $124,264,496 (2025), a CAGR of 21.3% over 4 years. This is strong appreciation — well above typical inflation. Most of this growth came in a single year (2021→2022), not a steady climb — worth checking what drove that reappraisal rather than assuming a smooth trend. Over the same span, the median Commercial parcel countywide rose +24.1%, so this parcel has outpaced the broader commercial market over the same period.
Tax Burden: The combined rate across 5 taxing entities is 2.0465% in 2025 (+0.0647% vs 2024 — rates increased ). At the current taxable value, estimated annual taxes are $2,543,054. Austin ISD is the largest single contributor, at 45.2% of the total 2025 levy.
Asset Class: Commercial. No homestead exemptions apply — full market value is taxable. This is valued using the income approach, so changes in rent roll or occupancy move the appraisal more directly than they would for a cost-approach property.
Value Composition: Land carries 13% of market value ($16,476,570 land vs $107,787,926 improvements), about $85/SF of land. Most value sits in the improvements, so building condition, age (~6 yrs), and rent roll drive the underwriting.
Submarket Position: At $124,264,496, this parcel sits in the top quartile (≥75th percentile) of Commercial property in Travis County — county median $1,417,484 (P25 $649,268 / P75 $3,347,260, n=13,608). Commercial here is the broad TCAD category — every commercial 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 +21.4% Base-scenario CAGR (Based on 2021–2025 certified trend, projected forward from 2025), the model projects market value near $326,941,986 by 2030, with an estimated annual tax burden around $3,769,919. 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.
7 components · show ▾hide ▴
| Code | Description | SF | In Gross |
|---|---|---|---|
| 187 | PARKING GARAGE | 348,000 SF | ✓ |
| ADDL | Additional Floor | 109,959 SF | ✓ |
| 1ST | 1st Floor | 36,653 SF | ✓ |
| 2ND | 2nd Floor | 36,653 SF | ✓ |
| 3RD | 3rd Floor | 36,653 SF | ✓ |
| 4TH | 4th Floor | 36,653 SF | ✓ |
| 5TH | 5th Floor | 36,653 SF | ✓ |
No large value jumps, delinquencies, or data anomalies found for this parcel.
| Entity | 2021 Rate | 2022 Rate | 2023 Rate | 2024 Rate | 2025 Rate | YoY (2024→25) | Amt Due | Amt Paid | Balance |
|---|---|---|---|---|---|---|---|---|---|
| IAU Austin ISD | 1.0617% | 0.9966% | 0.8595% | 0.9505% | 0.9252% | -0.0253% | $1,098,961.81 | $1,098,961.81 | Paid |
| CAT City of Austin | 0.5410% | 0.4627% | 0.4458% | 0.4776% | 0.5240% | +0.0464% | $622,432.63 | $622,432.63 | Paid |
| TCO Travis County | 0.3574% | 0.3182% | 0.3047% | 0.3444% | 0.3758% | +0.0314% | $446,432.45 | $446,432.45 | Paid |
| THD Travis Central Health | 0.1118% | 0.0987% | 0.1007% | 0.1080% | 0.1180% | +0.0101% | $140,188.90 | $140,188.90 | Paid |
| ACT Austin Community College | 0.1048% | 0.0987% | 0.0986% | 0.1013% | 0.1034% | +0.0021% | $122,819.55 | $122,819.55 | Paid |
| Combined Rate | 2.1767% | 1.9749% | 1.8092% | 1.9818% | 2.0465% | +0.0647% | $2,430,835.34 | $2,430,835.34 | Paid |
| 2026 Certified Certified | 2025 Certified Certified | Change 2025→2026 | |
|---|---|---|---|
| Market Value | $123,001,874 | $124,264,496 | -1.0% |
| Assessed Value | $123,001,874 | $124,264,496 | -1.0% |
| Land Value | $16,476,570 | $16,476,570 | +0.0% |
| Improvement Value | $106,525,304 | $107,787,926 | -1.2% |
| Taxable Value | $123,001,874 | $124,264,496 | -1.0% |
| Total Tax 2026 = estimate |
~$2,517,215
Estimated
|
~$2,430,835
Partial
|
ⓘ |
| 2026 Preliminary Preliminary | 2026 Certified Certified | Change | |
|---|---|---|---|
| Market Value | $133,913,626 | $123,001,874 | -10,911,752 (-8.1%) |
| Taxable Value | $133,913,626 | $123,001,874 | -10,911,752 (-8.1%) |
| Year | Market Value | Land Value | Imprv Value | Value Limitation Adj (−) | Net Appraised (Assessed) | Taxable Value | Total Tax | Source |
|---|---|---|---|---|---|---|---|---|
| 2026 | $123,001,874 | $16,476,570 | $106,525,304 | — | $123,001,874 | $123,001,874 | Not yet — post-cert | Certified — no billing yet |
| 2025 | $124,264,496 | $16,476,570 | $107,787,926 | — | $124,264,496 | $124,264,496 | ~$2,430,835 | Partial |
| 2024 | $158,202,360 | — | — | −$141,725,790 | $16,476,570 | $— | $2,532,274 | Verified |
| 2023 | $194,376,500 | — | — | −$177,899,930 | $16,476,570 | $— | $2,636,426 | Verified |
| 2022 | $157,033,000 | — | — | −$144,433,270 | $12,599,730 | $— | $3,475,240 | Verified |
| 2021 | $57,312,342 | — | — | −$45,681,822 | $11,630,520 | $— | $2,858,013 | Verified |
| Year | MktVal YoY | Assessed YoY | Asmt Ratio | Eff. Tax Rate | Coverage |
|---|---|---|---|---|---|
| 2026 | +7.8% | +7.8% | ~100% | Not available | Partial |
| 2025 | -8.3% | -8.3% | ~100% | Not available | Partial |
| 2024 | -14.4% | -14.4% | ~100% | 1.8700% | Verified |
| 2023 | -18.6% | -18.6% | ~100% | 1.6700% | Verified |
| 2022 | +23.8% | +23.8% | ~100% | 1.7900% | Verified |
| 2021 | base year | — | ~100% | 4.9900% | Verified |
| Cumulative market value growth (earliest valid year → 2025): -20.9% | |||||
| 12 Month | Hist. Avg | Forecast Avg | Peak | When | Trough | When | |
|---|---|---|---|---|---|---|---|
| Market Value Growth | -1.0% | +31.3% | +21.6% | +174.0% | 2022 | -21.5% | 2025 |
| Assessment Ratio | 100.0% | 41.2% | — | 100.0% | 2025 | 8.0% | 2022 |
| Effective Tax Rate (2025) | 1.9600% | 1.9600% | — | 1.9600% | 2025 | 1.9600% | 2025 |
|
Tax Amount
⚑ 2025 total is a derived or partial figure, not independently confirmed |
$2,430,835 | $2,786,558 | ~$3,242,345 | $3,475,240 | 2022 | $2,430,835 | 2025 |
| Year | ~Mkt Value | ~Assessed | ~Rate | ~Ann. Tax | Value Δ |
|---|---|---|---|---|---|
| 2026 | ~$150,789,739 | ~$136,690,946 | ~2.0139% | ~$2,752,869 | +21.3% |
| 2027 | ~$182,977,006 | ~$150,360,040 | ~1.9814% | ~$2,979,216 | +47.2% |
| 2028 | ~$222,034,900 | ~$165,396,044 | ~1.9488% | ~$3,223,303 | +78.7% |
| 2029 | ~$269,430,012 | ~$181,935,649 | ~1.9163% | ~$3,486,416 | +116.8% |
| 2030 | ~$326,941,986 | ~$200,129,213 | ~1.8837% | ~$3,769,919 | +163.1% |
| 2026 | ~$148,304,449 | ~$136,690,946 | ~2.0465% | ~$2,797,360 | +19.3% |
| 2027 | ~$176,995,122 | ~$150,360,040 | ~2.0465% | ~$3,077,096 | +42.4% |
| 2028 | ~$211,236,233 | ~$165,396,044 | ~2.0465% | ~$3,384,805 | +70.0% |
| 2029 | ~$252,101,559 | ~$181,935,649 | ~2.0465% | ~$3,723,286 | +102.9% |
| 2030 | ~$300,872,607 | ~$200,129,213 | ~2.0465% | ~$4,095,614 | +142.1% |
| 2026 | ~$153,275,029 | ~$136,690,946 | ~1.9977% | ~$2,730,623 | +23.3% |
| 2027 | ~$189,058,301 | ~$150,360,040 | ~1.9488% | ~$2,930,276 | +52.1% |
| 2028 | ~$233,195,462 | ~$165,396,044 | ~1.9000% | ~$3,142,553 | +87.7% |
| 2029 | ~$287,636,793 | ~$181,935,649 | ~1.8512% | ~$3,367,982 | +131.5% |
| 2030 | ~$354,787,886 | ~$200,129,213 | ~1.8024% | ~$3,607,071 | +185.5% |
In 2025, this property's market value of $124,264,496 places it in the top 25% for Commercial properties in Travis County (13608 comparable) — 88× the county median of $1,417,484. Commercial here is the broad TCAD category — every commercial 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 | $124,264,496 | $649,268 | $1,417,484 | $3,347,260 | ↑ Top 25% | -0.8% |
| 2024 | $158,202,360 | $661,016 | $1,438,465 | $3,471,171 | ↑ Top 25% | +0.0% |
| 2023 | $194,376,500 | $667,828 | $1,414,358 | $3,374,900 | ↑ Top 25% | +9.7% |
| 2022 | $157,033,000 | $553,066 | $1,215,730 | $2,939,150 | ↑ Top 25% | +3.3% |
| 2021 | $57,312,342 | $517,750 | $1,142,600 | $2,780,453 | ↑ Top 25% | 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.