Recent sale transactions for 4-room HDB flats in Simei Street 1: Block 109 ($700,000, 104 sqm), Block 148 ($688,000, 103 sqm), Block 135 ($669,000, 104 sqm), Block 101 ($720,000, 104 sqm), Block 256 ($670,000, 101 sqm). Other nearby transactions need clarification.