Block 4 Bedok South Avenue 1 is an HDB estate in Bedok, Singapore. Key details: 99-year leasehold, completed in 1975/76, 14 floors, 206 units, mainly 3-room flats. Recent transaction prices: $365,000-$440,000. Rental prices: $2,100-$3,100/month. Access to amenities and public transport.