20 FLATBROOK RD
Walpack, Sussex County · Block 1202, Lot 37A
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 down $17 ($1,434 → $1,417) using 2024→2025 rates (0.508 → 0.502) × assessed net.
Assessment net change: 0.0% ($282,300 → $282,300).
Assessment
| Land | $68,000 |
|---|---|
| Improvements | $214,300 |
| Net (taxable assessed, 2026) | $282,300 |
| Town avg ratio used | 93.56% (Average ratio (Director’s / Chapter 123)) |
| Implied equalized value | $301,732 |
| 2025 tax (MOD-IV billed) | $1,417.15 |
| Est. 2025 tax @ general rate | $1,417 |
| Mailing address (2026) | 17 UNION SCHOOLHOUSE RD, MENDHAM; NJ, 07945 |
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 | $282,300 | — |
| 2025 | $282,300 | $1,417.15 |
| 2024 | $282,300 | $1,434.08 |
| 2023 | $65,900 | $439.55 |
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 | $65,900 | 89.43% | $73,689 | — | — |
| 2024 | $282,300 | 100.00% | $282,300 | +328.4% | +283.1% |
| 2025 | $282,300 | 93.55% | $301,764 | 0.0% | +6.9% |
| 2026 | $282,300 | 93.56% | $301,732 | 0.0% | 0.0% |
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 | $65,900 | 0.667 | $440 | $439.55 | — |
| 2024 | $282,300 | 0.508 | $1,434 | $1,434.08 | +226.3% |
| 2025 | $282,300 | 0.502 | $1,417 | $1,417.15 | -1.2% |
| 2026 | $282,300 | — | — | — | — |
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 ($-17): schools ≈ 0.0%, county ≈ +100.0%, municipal ≈ 0.0%.
| County (0.462) | $1,304 |
|---|---|
| County library (0.038) | $107 |
| County open space (0.002) | $6 |
Property details
| Class | 2 |
|---|---|
| Building class | 16 |
| Building | 2SF |
| Land description | 3.59 AC |
| Dwellings | 1 |
| Commercial units | — |
| Year built | 1900 |
| Acreage | 3.59 |
| Zoning | — |
| Tax map page | — |
| Additional lots | — |
| Census tract / block | — |
| Special tax codes | — |
| MOD-IV current-year tax | — |
| Last sale | $200,000 · 10/31/2011 · SR1A 33 |
| Deed book / page | 03280 / 00129 |
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.