Largest assessment increases in Harrison, 2025 to 2026
Between the 2025 and 2026 rolls, 237 Harrison properties went up in assessed value, 174 went down, and 5,627 stayed about the same. This page lists the 50 biggest increases by percentage.
Increases this large usually come from a finished renovation or addition, a teardown replaced by new construction, a subdivision, or a correction to a parcel the assessor had valued too low. A big increase alone does not mean the assessment is wrong.
If your assessment rose sharply and similar homes on your street barely changed, ask the assessor why. The median by street table shows how much a typical home on each street changed. Grievance season in Westchester covers the deadlines and the process if you decide to challenge your assessment.
Parcels with a full market value under $200,000 on the prior roll are left out. At that size, a large percentage change is usually a reclassification or a data correction.
| # | Address | Change | Full market value | Assessed | Est. annual tax |
|---|---|---|---|---|---|
| 1 | 16 Stone Bridge Rd | +881.8% | $2,327,586 | $27,000 | $45,395 |
| 2 | 81a Highfield Rd | +550.0% | $2,801,724 | $32,500 | $54,643 |
| 3 | 40 Rolling Hills Ln | +466.7% | $1,465,517 | $17,000 | $28,583 |
| 4 | 1 Kenilworth Rd | +465.0% | $1,948,276 | $22,600 | $37,997 |
| 5 | 14 Stone Bridge Rd | +413.7% | $1,293,103 | $15,000 | $25,219 |
| 6 | 81b Highfield Rd | +400.0% | $2,801,724 | $32,500 | $54,643 |
| 7 | 11 Boxwood Ln | +360.0% | $2,974,138 | $34,500 | $58,005 |
| 8 | 61-63 Adelphi Ave | +327.0% | $1,336,207 | $15,500 | $26,060 |
| 9 | 75a-75b Fremont St | +300.0% | $1,379,310 | $16,000 | $26,901 |
| 10 | 85 Rye Ridge Road | +183.3% | $4,396,552 | $51,000 | $85,747 |
| 11 | 10 Beaver Landing | +177.1% | $948,276 | $11,000 | $18,495 |
| 12 | 59-61 Crystal St | +163.2% | $1,465,517 | $17,000 | $28,583 |
| 13 | 157-159 Franklin Ave | +161.5% | $1,465,517 | $17,000 | $28,583 |
| 14 | 150 Sterling Rd | +159.1% | $2,456,897 | $28,500 | $47,917 |
| 15 | 7 Oak St | +140.5% | $711,207 | $8,250 | $13,871 |
| 16 | 39-41 Oak St | +137.4% | $1,379,310 | $16,000 | $26,901 |
| 17 | 12 Stone Bridge Rd | +119.0% | $3,965,517 | $46,000 | $77,340 |
| 18 | 25 Brae Burn Dr | +118.8% | $3,017,241 | $35,000 | $58,845 |
| 19 | 9 Highland Ridge Ln | +115.7% | $1,465,517 | $17,000 | $28,583 |
| 20 | 61 Crawford Rd | +113.2% | $3,491,379 | $40,500 | $68,092 |
| 21 | 63 Buckout Rd | +109.1% | $1,982,759 | $23,000 | $38,669 |
| 22 | 205-207 Fremont St | +100.0% | $862,069 | $10,000 | $16,813 |
| 23 | 10 Taylor Ln | +100.0% | $2,931,034 | $34,000 | $57,164 |
| 24 | 1-3 Pine St | +91.8% | $689,655 | $8,000 | $13,450 |
| 25 | 144 Wendover Rd | +90.9% | $1,810,345 | $21,000 | $35,307 |
| 26 | 12 Boxwood Ln | +73.0% | $2,758,621 | $32,000 | $53,802 |
| 27 | 110 Haviland Rd | +68.2% | $3,189,655 | $37,000 | $62,209 |
| 28 | 23 Brae Burn Dr | +66.7% | $431,034 | $5,000 | $8,407 |
| 29 | 19 Garden Rd | +64.5% | $2,241,379 | $26,000 | $43,714 |
| 30 | 5 Hayden Ln | +61.5% | $1,810,345 | $21,000 | $35,307 |
| 31 | 31 Second St | +59.6% | $517,241 | $6,000 | $10,088 |
| 32 | 12 Glen Dr | +54.8% | $2,068,966 | $24,000 | $40,352 |
| 33 | 38 Avondale Rd | +54.1% | $1,077,586 | $12,500 | $21,017 |
| 34 | 711 West St | +47.7% | $2,068,966 | $24,000 | $40,352 |
| 35 | 64 Franklin Ave | +44.5% | $646,552 | $7,500 | $12,610 |
| 36 | 136-138 Gainsborg Ave | +43.8% | $1,487,069 | $17,250 | $29,003 |
| 37 | 194-196 Nelson Ave | +43.5% | $1,034,483 | $12,000 | $20,176 |
| 38 | 77-79 Congress St | +42.0% | $775,862 | $9,000 | $15,131 |
| 39 | 7 Union Ave | +39.3% | $1,206,897 | $14,000 | $23,538 |
| 40 | 1514 Old Orchard St | +36.9% | $620,690 | $7,200 | $12,106 |
| 41 | 384 Woodlands Rd | +34.8% | $2,672,414 | $31,000 | $52,121 |
| 42 | 170-172 Lakeview Ave | +34.6% | $1,508,621 | $17,500 | $29,423 |
| 43 | 509 West St | +33.3% | $1,724,138 | $20,000 | $33,626 |
| 44 | 28 Muchmore Rd | +31.3% | $3,793,103 | $44,000 | $73,978 |
| 45 | 7 Trails End | +31.2% | $1,810,345 | $21,000 | $35,307 |
| 46 | 174 Sunnyridge Rd | +31.2% | $1,810,345 | $21,000 | $35,307 |
| 47 | 27 South Rd | +31.1% | $1,724,138 | $20,000 | $33,626 |
| 48 | 45 Highfield Rd | +29.4% | $1,896,552 | $22,000 | $36,988 |
| 49 | 71 Fremont St | +28.1% | $396,552 | $4,600 | $7,733 |
| 50 | 14 Old Well Rd | +27.8% | $1,465,517 | $17,000 | $28,583 |
Source: Harrison 2026 assessment roll (SWIS 552801), compiled by Infarill LLC. Estimated taxes use county, school, and village mill rates for fiscal year 2026 town/village & 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/Village of Harrison.
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FAQ
Why did my Harrison assessment go up in 2026?
Common causes are a finished renovation or addition, new construction, a subdivision, or a correction to an assessment that was too low. The assessor's office can tell you which one applies to your parcel.
Can I challenge an assessment increase?
Yes. New York has a formal grievance process with set yearly deadlines. An increase on its own is not grounds for a grievance. The question is whether your assessment is too high compared with similar properties.
Unofficial. Confirm figures with the Town/Village of Harrison assessor before you act on them. Harrison includes Purchase and West Harrison. School district: Harrison Central School District.