4 ROUNDTOP RD
Tewksbury, Hunterdon County · Block 38.1, Lot 16.9
Assessments are tax year 2026; latest published general rate we have is 2025. Estimate uses that rate until the 2026 rate is loaded.
Estimated tax up $611 ($16,498 → $17,109) using 2024→2025 rates (2.429 → 2.519) × assessed net.
Assessment net change: 0.0% ($679,200 → $679,200).
Assessment
| Land | $225,000 |
|---|---|
| Improvements | $454,200 |
| Net (taxable assessed, 2026) | $679,200 |
| Town avg ratio used | 74.02% (Average ratio (Director’s / Chapter 123)) |
| Implied equalized value | $917,590 |
| 2025 tax (MOD-IV billed) | $17,109.05 |
| Est. 2025 tax @ general rate | $17,109 |
| Mailing address (2026) | P.O. BOX 358, OLDWICK NJ, 08858 |
How the ratio works: New Jersey towns often assess below full market value. The average ratio (Director’s / Chapter 123) estimates what percent of true market value the town’s assessments represent. Implied equalized value ≈ assessed net ÷ (ratio ÷ 100). Example: assessed $187,600 at 55.89% ≈ $335,700 equalized. Tax bills still use assessed value × the general tax rate — not the equalized figure.
Year-by-year assessed value & tax
From NJ MOD-IV files (2023, 2024, 2025, 2026). Tax is the MOD-IV billed amount when present; otherwise —. Current mailing is in Assessment above.
| Year | Assessed net | Tax |
|---|---|---|
| 2026 | $679,200 | — |
| 2025 | $679,200 | $17,109.05 |
| 2024 | $679,200 | $16,497.77 |
| 2023 | $679,200 | $16,042.70 |
Assessed value & ratio history
Parcel assessed nets come from MOD-IV year files (2023, 2024, 2025, 2026). Town average ratios are from Abstract / Chapter 123 when available — implied equalized = assessed ÷ (ratio ÷ 100).
| Tax year | Assessed net | Avg ratio | Implied equalized | Assessed Δ | Equalized Δ |
|---|---|---|---|---|---|
| 2023 | $679,200 | 88.23% | $769,806 | — | — |
| 2024 | $679,200 | 82.70% | $821,282 | 0.0% | +6.7% |
| 2025 | $679,200 | 78.47% | $865,554 | 0.0% | +5.4% |
| 2026 | $679,200 | 74.02% | $917,590 | 0.0% | +6.0% |
Tax year history
Assessed net is from that year’s MOD-IV file. Est. tax = assessed × that year’s general rate when we have the rate sheet. Billed tax is the MOD-IV tax field when present (often empty for the newest file year).
| Tax year | Assessment net | General rate | Est. tax (that year) | Billed tax | Est. vs prior |
|---|---|---|---|---|---|
| 2023 | $679,200 | 2.362 | $16,043 | $16,042.70 | — |
| 2024 | $679,200 | 2.429 | $16,498 | $16,497.77 | +2.8% |
| 2025 | $679,200 | 2.519 | $17,109 | $17,109.05 | +3.7% |
| 2026 | $679,200 | — | — | — | — |
Where your money goes
Component $ = net × (component rate ÷ 100). Percents are share of school + county + municipal components for rate year 2025.
Of the estimated change ($611): schools ≈ +46.7%, county ≈ +23.3%, municipal ≈ +30.0%.
| District school (0.927) | $6,296 |
|---|---|
| Regional / consolidated school (0.648) | $4,401 |
| County (0.391) | $2,656 |
| County library (0.040) | $272 |
| County open space (0.038) | $258 |
| Municipal purpose (0.425) | $2,887 |
| Municipal open space (0.050) | $340 |
Property details
| Class | 2 |
|---|---|
| Building class | 17 |
| Building | 2SF-2AG |
| Land description | 2.0000 |
| Dwellings | 1 |
| Commercial units | — |
| Year built | 1986 |
| Acreage | 2 |
| Zoning | HL |
| Tax map page | 54 |
| Additional lots | — |
| Census tract / block | — |
| Special tax codes | — |
| MOD-IV current-year tax | — |
| Last sale | $595,000 · 11/6/1998 · sale assessment $484,000 |
| Deed book / page | 01199 / 00625 |
See this lot on the statewide map, then come back for the full tax story.
Show on mapSources: NJ Division of Taxation MOD-IV (current parcel file) and tax rates for 2025 (Abstract of Ratables). Estimates are not an official tax bill. Owner names are not shown. Full disclaimer.