Annual value of house property turns on expected rent, vacancy relief, self-occupation limits, and unrealised rent rules. Annual value of house property is determined by the higher of expected rent or actual rent received or receivable, with vacancy, municipal taxes, and unrealised rent governed by prescribed conditions. Self-occupied property is taken at nil annual value, subject to limits on the number of houses and exclusion where the property is let or any other benefit is derived. Property held as stock-in-trade also receives a temporary nil annual value period after completion before normal tax provisions apply.