Largest assessment decreases in New Castle, 2025 to 2026
These are the 50 biggest drops in assessed value between the 2025 and 2026 New Castle rolls. 101 parcels went down in total.
Common reasons for a drop are a successful grievance or small claims assessment review, a demolition, a fire or other loss of improvements, a subdivision that moved value onto a new parcel, or a correction. When a drop comes from a won grievance, the assessor accepted that similar properties supported a lower value.
As on the increases page, parcels with a full market value under $200,000 on the prior roll are left out.
| # | Address | Change | Full market value | Assessed | Est. annual tax |
|---|---|---|---|---|---|
| 1 | 6 Paula Pl | −73.0% | $950,000 | $132,525 | $21,385 |
| 2 | 249 Croton Dam Rd | −38.0% | $1,436,559 | $200,400 | $34,199 |
| 3 | 24 Old Roaring Brook Rd | −36.3% | $799,283 | $111,500 | $17,992 |
| 4 | 78 Stornowaye | −35.1% | $1,150,179 | $160,450 | $25,891 |
| 5 | 2 Woodmill Rd | −34.2% | $994,996 | $138,802 | $22,398 |
| 6 | 34 Red Oak Ln | −31.5% | $689,964 | $96,250 | $15,531 |
| 7 | 319 Millwood Rd | −28.4% | $2,100,000 | $292,950 | $47,272 |
| 8 | 211 Bedford Rd | −27.2% | $894,982 | $124,850 | $20,147 |
| 9 | 235 Croton Ave | −26.3% | $1,109,319 | $154,750 | $19,780 |
| 10 | 14 Hollow Ridge Rd | −23.9% | $835,125 | $116,500 | $14,892 |
| 11 | 56 Florence Dr | −21.9% | $1,664,158 | $232,150 | $37,461 |
| 12 | 143 Westwood Dr | −21.3% | $1,210,394 | $168,850 | $21,584 |
| 13 | 504 Millwood Rd | −20.8% | $860,215 | $120,000 | $19,364 |
| 14 | 50 Ridge Dr | −20.0% | $1,992,115 | $277,900 | $44,843 |
| 15 | 70 Cowdin Ln | −19.9% | $1,850,179 | $258,100 | $41,649 |
| 16 | 35 Ivy Hill Rd | −19.6% | $2,512,545 | $350,500 | $56,558 |
| 17 | 23 Round Hill Rd | −19.4% | $1,386,738 | $193,450 | $31,216 |
| 18 | 114 Pines Bridge Rd | −19.0% | $700,000 | $97,650 | $16,664 |
| 19 | 15 Vails Ln | −18.5% | $850,000 | $118,575 | $20,235 |
| 20 | 191 Hamilton Rd | −18.3% | $1,513,262 | $211,100 | $34,064 |
| 21 | 17 Colony Row | −17.7% | $2,400,000 | $334,800 | $54,025 |
| 22 | 99 Tripp St | −17.7% | $4,000,000 | $558,000 | $71,328 |
| 23 | 54 Kerry Ln | −17.4% | $2,319,785 | $323,610 | $52,219 |
| 24 | 36 Gray Rock Ln | −16.5% | $2,150,179 | $299,950 | $48,402 |
| 25 | 27 Heathcote Dr | −16.3% | $2,616,487 | $365,000 | $58,898 |
| 26 | 15 Haights Cross Rd | −15.7% | $1,850,179 | $258,100 | $41,649 |
| 27 | 9 North Way | −15.5% | $2,950,179 | $411,550 | $66,410 |
| 28 | 11 N Bridge Pl | −14.5% | $950,179 | $132,550 | $21,389 |
| 29 | 29 Hilltop Dr | −14.3% | $1,336,201 | $186,400 | $30,079 |
| 30 | 59 Algonquin Dr | −13.6% | $3,100,000 | $432,450 | $69,782 |
| 31 | 14 Alta Ln | −13.5% | $1,600,000 | $223,200 | $36,017 |
| 32 | 2 Brookdale Ln | −13.1% | $1,664,194 | $232,155 | $37,462 |
| 33 | 62 Random Farms Cir | −13.0% | $2,370,251 | $330,650 | $53,355 |
| 34 | 1 Maria Ln | −12.7% | $681,004 | $95,000 | $16,213 |
| 35 | 187 Armonk Rd | −12.2% | $428,674 | $59,800 | $7,645 |
| 36 | 3 Hilltop Dr | −11.4% | $2,420,789 | $337,700 | $54,493 |
| 37 | 25 Haights Cross Rd | −11.2% | $1,563,441 | $218,100 | $35,194 |
| 38 | 526 Saw Mill River Rd | −11.2% | $967,742 | $135,000 | $21,785 |
| 39 | 68 Overlook Dr | −10.6% | $1,664,158 | $232,150 | $37,461 |
| 40 | 29 Deerfield Rd | −10.6% | $1,891,039 | $263,800 | $42,568 |
| 41 | 1 Greenridge Dr | −10.2% | $1,512,903 | $211,050 | $34,056 |
| 42 | 250 Byram Lake Rd | −10.1% | $1,412,186 | $197,000 | $25,182 |
| 43 | 99 N Greeley Av | −10.0% | $700,000 | $97,650 | $15,757 |
| 44 | 6 Sheridan Rd | −9.8% | $1,386,738 | $193,450 | $31,216 |
| 45 | 2 Breckenridge | −9.4% | $1,059,140 | $147,750 | $23,842 |
| 46 | 512 Bedford Rd | −9.2% | $1,405,735 | $196,100 | $31,643 |
| 47 | 19 Gray Rock Ln | −9.0% | $1,500,000 | $209,250 | $33,765 |
| 48 | 21 Garey Dr | −8.9% | $1,018,638 | $142,100 | $22,930 |
| 49 | 31 Bretton Ridge | −8.1% | $1,613,620 | $225,100 | $28,774 |
| 50 | 67 Tripp St | −8.0% | $1,146,953 | $160,000 | $20,452 |
Source: New Castle 2026 assessment roll (SWIS 553600), compiled by Infarill LLC. Estimated taxes use county, school, and village mill rates for fiscal year 2026 town & county / 2026-27 school and leave out special district charges. Dale Ledger is unofficial and is not affiliated with any municipality or school district. Check figures with the Town of New Castle Assessor.
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FAQ
Why would a New Castle assessment go down?
Common reasons are a successful grievance or small claims review, a demolition or other loss of improvements, a subdivision, or a correction by the assessor.
Unofficial. Confirm figures with the Town of New Castle Assessor before you act on them. New Castle covers Chappaqua and Millwood.