The Fair Share Report
23 Button Mill Rd
Upper Deerfield, NJ 08302
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 $297,549 – $479,646, from 12 comparable Upper Deerfield 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 Upper Deerfield assessments sit below market value — republished every October, applied town-wide. A $416,365 home should be assessed near $288,541.
Step 3 · Assessed value
Set at the last town-wide revaluation and mostly frozen since. That's $81,241 below what the ratio math suggests (28.2%).
Step 4 · The tax rate — same for every Upper Deerfield home
$1.925 Schools · 59% $1.176 County · 36% $0.189 Town · 6%
Step 5 · The bill
This home vs. every recent Upper Deerfield sale · assessed ÷ market
36%85%
Paying about right
This home's ratio lands inside Upper Deerfield'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 |
|---|---|---|---|---|
| 18 DUBOIS RD | 2025-01 | $370,000 | 1,612 | 58.4% |
| 144 SILVER LAKE RD | 2025-09 | $330,000 | 2,016 | 66.9% |
| 342 LANDIS AVE | 2025-05 | $485,000 | 1,794 | 51.8% |
| 18 THOROUGHBRED COURT | 2025-11 | $465,000 | 1,999 | 54.5% |
| 59 SUNSET LAKE RD | 2025-09 | $615,000 | 1,720 | 36.1% |
| 6 JACK ROBERT DRIVE | 2025-06 | $455,000 | 1,764 | 69.4% |
| 1 JOHN'S WAY | 2026-05 | $449,900 | 2,208 | 53.0% |
| 292 LANDIS AVE | 2025-03 | $420,000 | 1,591 | 66.5% |
| 61 SUNSET LAKE RD | 2025-08 | $355,000 | 1,740 | 46.9% |
| 553 IRVING AVE | 2025-12 | $290,000 | 1,698 | 53.5% |
| 10 KRYSTA COURT | 2025-08 | $485,000 | 2,020 | 68.3% |
| 14 1/2 SMITH DR | 2026-01 | $250,000 | 1,760 | 82.4% |
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