Housal tracks 500 BIR zonal value entries in Isulan. Zonal values range from ₱140/sqm to ₱12,825/sqm (average ₱2,046/sqm). Top classifications: RR (414), CR (103), A1 (48). Source: Bureau of Internal Revenue (BIR). Last checked June 18, 2026.
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BIR Zonal Values in Isulan
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