21 UNDER ROCK RD, Sparta, New Jersey

Public property record for 21 UNDER ROCK RD in Sparta, Sussex County, New Jersey — tax assessment, lot details, and sales history from official New Jersey records.

Property Facts

• Property class: Residential
• Year built: 1958
• Lot size: 0.50 acres (115 × 188 ft)
• Building area: 1,188 sq ft
• Land assessment: $121,800
• Improvement assessment: $113,800
• Total assessment: $235,600
• Latest annual tax: $8,455

The most recent assessment values 21 UNDER ROCK RD at $235,600 total ($121,800 land plus $113,800 improvements).

Sale History

• 2026-04-07 — $1

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See more in Sparta property records, Sussex County property records, or the Sparta sales history.