2100 S INTERSTATE HY 35 TX 78704
| Owner | REGENCY OFFICE CENTER L P |
|---|---|
| Parcel ID | 0305030505 |
| Short ID | 285904 |
| Type | Real |
| Use Code | 51 Office Large (>35,000 SF) |
| Valuation | Income |
| Improvement SF | 107,050 SF |
| Land SF | 181,558 SF |
| Acres | 4.168 |
| Year Built | 1978 |
| Legal | LOT 1 INSURANCE ADDN |
| Neighborhood | 51SCN |
| Land | $10,893,485 |
|---|---|
| Special Use Land Market | Not Available |
| Total Land | $10,893,485 |
| Improvement | $960,790 |
|---|---|
| Total Improvement | $960,790 |
| Market | $11,854,275 |
|---|---|
| Special Use Exclusion (−) | Not Available |
| Appraised | $11,854,275 |
| Value Limitation Adjustment (−) | — |
| Net Appraised (assessed) | $11,854,275 |
| Taxable Value | $11,854,275 |
|---|
Appreciation: Market value has fallen -13.7% from $13,733,300 (2021) to $11,854,275 (2025), a CAGR of -3.6% over 4 years. Growth has been relatively flat for this asset class. Most of this growth came in a single year (2023→2024), 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 lagged 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 $242,596. 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 92% of market value ($10,893,485 land vs $960,790 improvements), about $60/SF of land. With value concentrated in the land under a ~48-year-old structure, this reads as a land-dominated asset — the classic higher-and-best-use / redevelopment signal. Underwrite the dirt, not the building.
Submarket Position: At $11,854,275, 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 -3.6% Base-scenario CAGR (Based on 2021–2025 certified trend, projected forward from 2025), the model projects market value near $9,862,797 by 2030, with an estimated annual tax burden around $185,790. 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.
8 components · show ▾hide ▴
| Code | Description | SF | In Gross |
|---|---|---|---|
| 2ND | 2nd Floor | 54,468 SF | ✓ |
| 1ST | 1st Floor | 52,582 SF | ✓ |
| 551 | PAVED AREA | 51,120 SF | ✗ |
| 581C | STORAGE ATT COMM | 4,356 SF | ✓ |
| 611 | TERRACE | 3,949 SF | ✗ |
| 501 | CANOPY | 1,468 SF | ✗ |
| SO | Sketch Only | 1,468 SF | ✗ |
| 482 | LIGHT POLES | 16 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% | $109,675.75 | $109,675.75 | Paid |
| CAT City of Austin | 0.5410% | 0.4627% | 0.4458% | 0.4776% | 0.5240% | +0.0464% | $62,118.42 | $62,118.42 | Paid |
| TCO Travis County | 0.3574% | 0.3182% | 0.3047% | 0.3444% | 0.3758% | +0.0314% | $44,553.70 | $44,553.70 | Paid |
| THD Travis Central Health | 0.1118% | 0.0987% | 0.1007% | 0.1080% | 0.1180% | +0.0101% | $13,990.77 | $13,990.77 | Paid |
| ACT Austin Community College | 0.1048% | 0.0987% | 0.0986% | 0.1013% | 0.1034% | +0.0021% | $12,257.32 | $12,257.32 | Paid |
| Combined Rate | 2.1767% | 1.9749% | 1.8092% | 1.9818% | 2.0465% | +0.0647% | $242,595.96 | $242,595.96 | Paid |
| 2026 Certified Certified | 2025 Certified Certified | Change 2025→2026 | |
|---|---|---|---|
| Market Value | $12,595,646 | $11,854,275 | +6.3% |
| Assessed Value | $12,595,646 | $11,854,275 | +6.3% |
| Land Value | $10,893,485 | $10,893,485 | +0.0% |
| Improvement Value | $1,702,161 | $960,790 | +77.2% |
| Taxable Value | $12,595,646 | $11,854,275 | +6.3% |
| Total Tax 2026 = estimate |
~$257,768
Estimated
|
~$242,596
Partial
|
ⓘ |
| 2026 Preliminary Preliminary | 2026 Certified Certified | Change | |
|---|---|---|---|
| Market Value | $12,595,646 | $12,595,646 | +0 (+0.0%) |
| Taxable Value | $12,595,646 | $12,595,646 | +0 (+0.0%) |
| Year | Market Value | Land Value | Imprv Value | Value Limitation Adj (−) | Net Appraised (Assessed) | Taxable Value | Total Tax | Source |
|---|---|---|---|---|---|---|---|---|
| 2026 | $12,595,646 | $10,893,485 | $1,702,161 | — | $12,595,646 | $12,595,646 | Not yet — post-cert | Certified — no billing yet |
| 2025 | $11,854,275 | $10,893,485 | $960,790 | — | $11,854,275 | $11,854,275 | ~$242,596 | Partial |
| 2024 | $12,250,000 | — | — | −$570,100 | $11,679,900 | $— | $257,939 | Verified |
| 2023 | $14,200,000 | — | — | −$2,520,100 | $11,679,900 | $— | $221,997 | Verified |
| 2022 | $13,276,000 | — | — | −$8,896,037 | $4,379,963 | $— | $281,292 | Verified |
| 2021 | $13,733,300 | — | — | −$9,353,337 | $4,379,963 | $— | $288,976 | Verified |
| Year | MktVal YoY | Assessed YoY | Asmt Ratio | Eff. Tax Rate | Coverage |
|---|---|---|---|---|---|
| 2026 | +6.3% | +6.3% | ~100% | Not available | Partial |
| 2025 | -6.1% | -6.1% | ~100% | Not available | Partial |
| 2024 | +0.0% | +0.0% | ~100% | 2.0400% | Verified |
| 2023 | -16.2% | -16.2% | ~100% | 1.7600% | Verified |
| 2022 | +13.5% | +13.5% | ~100% | 1.8700% | Verified |
| 2021 | base year | — | ~100% | 2.1000% | Verified |
| Cumulative market value growth (earliest valid year → 2025): -10.7% | |||||
| 12 Month | Hist. Avg | Forecast Avg | Peak | When | Trough | When | |
|---|---|---|---|---|---|---|---|
| Market Value Growth | +6.3% | -1.4% | -4.7% | +7.0% | 2023 | -13.7% | 2024 |
| Assessment Ratio | 100.0% | 73.8% | — | 100.0% | 2025 | 31.9% | 2021 |
| 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 |
$242,596 | $258,560 | ~$207,418 | $288,976 | 2021 | $221,997 | 2023 |
| Year | ~Mkt Value | ~Assessed | ~Rate | ~Ann. Tax | Value Δ |
|---|---|---|---|---|---|
| 2026 | ~$11,426,153 | ~$11,426,153 | ~2.0139% | ~$230,115 | -3.6% |
| 2027 | ~$11,013,492 | ~$11,013,492 | ~1.9814% | ~$218,220 | -7.1% |
| 2028 | ~$10,615,735 | ~$10,615,735 | ~1.9488% | ~$206,884 | -10.4% |
| 2029 | ~$10,232,343 | ~$10,232,343 | ~1.9163% | ~$196,081 | -13.7% |
| 2030 | ~$9,862,797 | ~$9,862,797 | ~1.8837% | ~$185,790 | -16.8% |
| 2026 | ~$11,261,561 | ~$11,261,561 | ~2.0465% | ~$230,466 | -5.0% |
| 2027 | ~$10,698,483 | ~$10,698,483 | ~2.0465% | ~$218,943 | -9.8% |
| 2028 | ~$10,163,559 | ~$10,163,559 | ~2.0465% | ~$207,996 | -14.3% |
| 2029 | ~$9,655,381 | ~$9,655,381 | ~2.0465% | ~$197,596 | -18.5% |
| 2030 | ~$9,172,612 | ~$9,172,612 | ~2.0465% | ~$187,716 | -22.6% |
| 2026 | ~$11,663,238 | ~$11,663,238 | ~1.9977% | ~$232,992 | -1.6% |
| 2027 | ~$11,475,280 | ~$11,475,280 | ~1.9488% | ~$223,635 | -3.2% |
| 2028 | ~$11,290,351 | ~$11,290,351 | ~1.9000% | ~$214,519 | -4.8% |
| 2029 | ~$11,108,402 | ~$11,108,402 | ~1.8512% | ~$205,638 | -6.3% |
| 2030 | ~$10,929,385 | ~$10,929,385 | ~1.8024% | ~$196,988 | -7.8% |
In 2025, this property's market value of $11,854,275 places it in the top 25% for Commercial properties in Travis County (13608 comparable) — 8× 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 | $11,854,275 | $649,268 | $1,417,484 | $3,347,260 | ↑ Top 25% | -0.8% |
| 2024 | $12,250,000 | $661,016 | $1,438,465 | $3,471,171 | ↑ Top 25% | +0.0% |
| 2023 | $14,200,000 | $667,828 | $1,414,358 | $3,374,900 | ↑ Top 25% | +9.7% |
| 2022 | $13,276,000 | $553,066 | $1,215,730 | $2,939,150 | ↑ Top 25% | +3.3% |
| 2021 | $13,733,300 | $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.