10025 ALTERRA PARKWAY TX 78758
| Owner | SL DOMAIN TOWER II LP |
|---|---|
| Parcel ID | 0254080411 |
| Short ID | 922173 |
| Type | Real |
| Use Code | 50 Office Hi-Rise (≥6 Stories) |
| Valuation | Income |
| Improvement SF | 102,000 SF |
| Land SF | 66,865 SF |
| Acres | 1.535 |
| Year Built | 2020 |
| Legal | LOT 7 BLK A DOMAIN SOUTH END DISTRICT |
| Neighborhood | 50NWE |
| Land | $5,683,491 |
|---|---|
| Special Use Land Market | Not Available |
| Total Land | $5,683,491 |
| Improvement | $102,021,846 |
|---|---|
| Total Improvement | $102,021,846 |
| Market | $107,705,337 |
|---|---|
| Special Use Exclusion (−) | Not Available |
| Appraised | $107,705,337 |
| Value Limitation Adjustment (−) | — |
| Net Appraised (assessed) | $107,705,337 |
| Taxable Value | $107,705,337 |
|---|
Appreciation: Market value has risen +2287.2% from $4,511,876 (2021) to $107,705,337 (2025), a CAGR of 121.0% over 4 years. This is strong appreciation — well above typical inflation. Most of this growth came in a single year (2022→2023), 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 $2,204,174. 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 5% of market value ($5,683,491 land vs $102,021,846 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 $107,705,337, 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 +121.0% Base-scenario CAGR (Based on 2021–2025 certified trend, projected forward from 2025), the model projects market value near $5,683,126,324 by 2030, with an estimated annual tax burden around $3,267,550. 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 | 383,600 SF | ✓ |
| ADDL | Additional Floor | 170,000 SF | ✓ |
| 1ST | 1st Floor | 34,000 SF | ✓ |
| 2ND | 2nd Floor | 34,000 SF | ✓ |
| 3RD | 3rd Floor | 34,000 SF | ✓ |
| 4TH | 4th Floor | 34,000 SF | ✓ |
| 5TH | 5th Floor | 34,000 SF | ✓ |
Market value changed by 205% 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 |
|---|---|---|---|---|---|---|---|---|---|
| IAU Austin ISD | 1.0617% | 0.9966% | 0.8595% | 0.9505% | 0.9252% | -0.0253% | $996,489.78 | $996,489.78 | Paid |
| CAT City of Austin | 0.5410% | 0.4627% | 0.4458% | 0.4776% | 0.5240% | +0.0464% | $564,394.28 | $564,394.28 | Paid |
| TCO Travis County | 0.3574% | 0.3182% | 0.3047% | 0.3444% | 0.3758% | +0.0314% | $404,805.12 | $404,805.12 | Paid |
| THD Travis Central Health | 0.1118% | 0.0987% | 0.1007% | 0.1080% | 0.1180% | +0.0101% | $127,117.07 | $127,117.07 | Paid |
| ACT Austin Community College | 0.1048% | 0.0987% | 0.0986% | 0.1013% | 0.1034% | +0.0021% | $111,367.32 | $111,367.32 | Paid |
| Combined Rate | 2.1767% | 1.9749% | 1.8092% | 1.9818% | 2.0465% | +0.0647% | $2,204,173.57 | $2,204,173.57 | Paid |
| 2026 Certified Certified | 2025 Certified Certified | Change 2025→2026 | |
|---|---|---|---|
| Market Value | $123,543,588 | $107,705,337 | +14.7% |
| Assessed Value | $123,543,588 | $107,705,337 | +14.7% |
| Land Value | $5,683,491 | $5,683,491 | +0.0% |
| Improvement Value | $117,860,097 | $102,021,846 | +15.5% |
| Taxable Value | $123,543,588 | $107,705,337 | +14.7% |
| Total Tax 2026 = estimate |
~$2,528,301
Estimated
|
~$2,204,174
Partial
|
ⓘ |
| 2026 Preliminary Preliminary | 2026 Certified Certified | Change | |
|---|---|---|---|
| Market Value | $123,543,588 | $123,543,588 | +0 (+0.0%) |
| Taxable Value | $123,543,588 | $123,543,588 | +0 (+0.0%) |
| Year | Market Value | Land Value | Imprv Value | Value Limitation Adj (−) | Net Appraised (Assessed) | Taxable Value | Total Tax | Source |
|---|---|---|---|---|---|---|---|---|
| 2026 | $123,543,588 | $5,683,491 | $117,860,097 | — | $123,543,588 | $123,543,588 | Not yet — post-cert | Certified — no billing yet |
| 2025 | $107,705,337 | $5,683,491 | $102,021,846 | — | $107,705,337 | $107,705,337 | ~$2,204,174 | Partial |
| 2024 | $139,057,479 | — | — | −$133,373,988 | $5,683,491 | $— | $2,284,951 | Verified |
| 2023 | $96,322,423 | — | — | −$90,638,932 | $5,683,491 | $— | $2,360,952 | Verified |
| 2022 | $31,530,038 | — | — | −$27,183,839 | $4,346,199 | $— | $1,902,294 | Verified |
| 2021 | $4,511,876 | — | — | −$500,000 | $4,011,876 | $— | $686,308 | Verified |
| Year | MktVal YoY | Assessed YoY | Asmt Ratio | Eff. Tax Rate | Coverage |
|---|---|---|---|---|---|
| 2026 | +14.7% | +14.7% | ~100% | Not available | Partial |
| 2025 | -10.8% | -10.8% | ~100% | Not available | Partial |
| 2024 | -13.1% | -13.1% | ~100% | 1.8900% | Verified |
| 2023 | +44.4% | +44.4% | ~100% | 1.7000% | Verified |
| 2022 | +205.5% ! | +205.5% | ~100% | 1.9700% | Verified |
| 2021 | base year | — | ~100% | 15.2100% | Verified |
| Cumulative market value growth (earliest valid year → 2025): +241.6% | |||||
| 12 Month | Hist. Avg | Forecast Avg | Peak | When | Trough | When | |
|---|---|---|---|---|---|---|---|
| Market Value Growth | +14.7% | +168.2% | +115.4% | +598.8% | 2022 | -22.5% | 2025 |
| Assessment Ratio | 100.0% | 52.1% | — | 100.0% | 2025 | 4.1% | 2024 |
| Effective Tax Rate (2025) | 2.0500% | 2.0500% | — | 2.0500% | 2025 | 2.0500% | 2025 |
|
Tax Amount
⚑ 2025 total is a derived or partial figure, not independently confirmed |
$2,204,174 | $1,887,736 | ~$2,810,279 | $2,360,952 | 2023 | $686,308 | 2021 |
| Year | ~Mkt Value | ~Assessed | ~Rate | ~Ann. Tax | Value Δ |
|---|---|---|---|---|---|
| 2026 | ~$238,071,408 | ~$118,475,871 | ~2.0139% | ~$2,386,029 | +121.0% |
| 2027 | ~$526,232,005 | ~$130,323,458 | ~1.9814% | ~$2,582,213 | +388.6% |
| 2028 | ~$1,163,180,935 | ~$143,355,804 | ~1.9488% | ~$2,793,775 | +980.0% |
| 2029 | ~$2,571,090,078 | ~$157,691,384 | ~1.9163% | ~$3,021,826 | +2287.2% |
| 2030 | ~$5,683,126,324 | ~$173,460,522 | ~1.8837% | ~$3,267,550 | +5176.6% |
| 2026 | ~$235,917,302 | ~$118,475,871 | ~2.0465% | ~$2,424,591 | +119.0% |
| 2027 | ~$516,752,231 | ~$130,323,458 | ~2.0465% | ~$2,667,050 | +379.8% |
| 2028 | ~$1,131,891,839 | ~$143,355,804 | ~2.0465% | ~$2,933,755 | +950.9% |
| 2029 | ~$2,479,290,959 | ~$157,691,384 | ~2.0465% | ~$3,227,131 | +2201.9% |
| 2030 | ~$5,430,628,131 | ~$173,460,522 | ~2.0465% | ~$3,549,844 | +4942.1% |
| 2026 | ~$240,225,515 | ~$118,475,871 | ~1.9977% | ~$2,366,748 | +123.0% |
| 2027 | ~$535,797,944 | ~$130,323,458 | ~1.9488% | ~$2,539,795 | +397.5% |
| 2028 | ~$1,195,041,403 | ~$143,355,804 | ~1.9000% | ~$2,723,784 | +1009.5% |
| 2029 | ~$2,665,415,145 | ~$157,691,384 | ~1.8512% | ~$2,919,173 | +2374.7% |
| 2030 | ~$5,944,930,345 | ~$173,460,522 | ~1.8024% | ~$3,126,403 | +5419.6% |
In 2025, this property's market value of $107,705,337 places it in the top 25% for Commercial properties in Travis County (13608 comparable) — 76× 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 | $107,705,337 | $649,268 | $1,417,484 | $3,347,260 | ↑ Top 25% | -0.8% |
| 2024 | $139,057,479 | $661,016 | $1,438,465 | $3,471,171 | ↑ Top 25% | +0.0% |
| 2023 | $96,322,423 | $667,828 | $1,414,358 | $3,374,900 | ↑ Top 25% | +9.7% |
| 2022 | $31,530,038 | $553,066 | $1,215,730 | $2,939,150 | ↑ Top 25% | +3.3% |
| 2021 | $4,511,876 | $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.