HDB blocks on Hougang Street 21
- Blk 201, Hougang Street 21. Postal Code, 530201
- Blk 202, Hougang Street 21. Postal Code, 530202
- Blk 203, Hougang Street 21. Postal Code, 530203
- Blk 204, Hougang Street 21. Postal Code, 530204
- Blk 206, Hougang Street 21. Postal Code, 530206
- Blk 207, Hougang Street 21. Postal Code, 530207
- Blk 208, Hougang Street 21. Postal Code, 530208
- Blk 209, Hougang Street 21. Postal Code, 530209
- Blk 210, Hougang Street 21. Postal Code, 530210
- Blk 211, Hougang Street 21. Postal Code, 530211
- Blk 212, Hougang Street 21. Postal Code, 530212
- Blk 213, Hougang Street 21. Postal Code, 530213
- Blk 220, Hougang Street 21. Postal Code, 530220
- Blk 221, Hougang Street 21. Postal Code, 530221
- Blk 222, Hougang Street 21. Postal Code, 530222
- Blk 231, Hougang Street 21. Postal Code, 530231
- Blk 233, Hougang Street 21. Postal Code, 530233
- Blk 235, Hougang Street 21. Postal Code, 530235
- Blk 237, Hougang Street 21. Postal Code, 530237