The Fair Share Report
17 Halstead Rd
Mendham, NJ 07945
The town corrects for market drift once a year — but only on average. This report measures whether this house drifted with the herd or away from it.
This home's full record →Check another house →
Step 1 · Market value
Likely range $623,454 – $873,397, from 12 comparable Mendham sales in the past 18 months (home size estimated from assessor data — range widened).
Step 2 · The Director's Ratio
The state's official measure of how far Mendham assessments sit below market value — republished every October, applied town-wide. A $765,700 home should be assessed near $549,849.
Step 3 · Assessed value
Set at the last town-wide revaluation and mostly frozen since. That's $17,751 above what the ratio math suggests (3.2%).
Step 4 · The tax rate — same for every Mendham home
$1.661 Schools · 66% $0.302 County · 12% $0.563 Town · 22%
Step 5 · The bill
This home vs. every recent Mendham sale · assessed ÷ market
43%96%
Paying about right
This home's ratio lands inside Mendham's normal band. The drift hasn't singled it out — no case for a tax appeal.
The evidence · comparable sales (SR1A usable-sale records)
| Address | Sold | Price | Sq ft | Ratio |
|---|---|---|---|---|
| 7 HALSTEAD RD | 2025-02 | $715,000 | 1,901 | 62.8% |
| 200 MOUNTAINSIDE RD | 2026-01 | $900,000 | 1,796 | 52.5% |
| 200 MOUNTAINSIDE RD | 2025-10 | $645,000 | 1,796 | 73.3% |
| 81 MOUNTAIN AVE | 2026-06 | $785,000 | 1,768 | 53.7% |
| 5 MAPLE AVE | 2025-10 | $769,000 | 1,402 | 53.3% |
| 12 STERLING AVE | 2025-07 | $940,000 | 1,968 | 45.9% |
| 120 MOUNTAINSIDE RD | 2026-01 | $835,000 | 1,092 | 57.8% |
| 4 GLENBROOK LN | 2025-04 | $840,000 | 2,045 | 66.3% |
| 15 LAKE DR | 2025-06 | $730,000 | 1,649 | 56.2% |
| 40 MOUNTAIN AVE | 2026-04 | $610,000 | 1,386 | 69.8% |
| 6 EMERY AVE | 2025-07 | $575,000 | 1,547 | 66.8% |
| 63 MOUNTAIN AVE | 2026-05 | $900,000 | 1,800 | 54.6% |
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