Block 231 Hougang Street 21
| Date | Floor | Type | Area | Price | $/sqm |
|---|---|---|---|---|---|
| Jan 2026 | 04 TO 06 | 5 ROOM | 142 sqm | $980,000 | $6,901 |
| Sep 2025 | 10 TO 12 | 5 ROOM | 142 sqm | $1,028,000 | $7,239 |
| May 2025 | 01 TO 03 | 5 ROOM | 140 sqm | $990,000 | $7,071 |
| Feb 2025 | 07 TO 09 | 5 ROOM | 140 sqm | $1,070,888 | $7,649 |
| Aug 2024 | 10 TO 12 | 5 ROOM | 142 sqm | $1,150,000 | $8,099 |
| Jun 2024 | 10 TO 12 | 5 ROOM | 142 sqm | $1,088,000 | $7,662 |
| Apr 2024 | 04 TO 06 | 5 ROOM | 140 sqm | $900,000 | $6,429 |
| Apr 2024 | 04 TO 06 | 5 ROOM | 142 sqm | $991,688 | $6,984 |
| Mar 2024 | 01 TO 03 | 5 ROOM | 142 sqm | $900,000 | $6,338 |
| Feb 2024 | 10 TO 12 | 4 ROOM | 103 sqm | $585,000 | $5,680 |
| Nov 2023 | 10 TO 12 | 4 ROOM | 109 sqm | $600,000 | $5,505 |
| Nov 2023 | 07 TO 09 | 4 ROOM | 109 sqm | $615,000 | $5,642 |
| Oct 2023 | 13 TO 15 | 4 ROOM | 109 sqm | $620,000 | $5,688 |
| Aug 2023 | 01 TO 03 | 4 ROOM | 103 sqm | $518,000 | $5,029 |
| Feb 2023 | 07 TO 09 | 5 ROOM | 140 sqm | $958,000 | $6,843 |
| Nov 2022 | 01 TO 03 | 5 ROOM | 142 sqm | $860,000 | $6,056 |
| Oct 2022 | 04 TO 06 | 5 ROOM | 142 sqm | $818,000 | $5,761 |
| Sep 2022 | 04 TO 06 | 5 ROOM | 142 sqm | $800,000 | $5,634 |
| Sep 2022 | 04 TO 06 | 5 ROOM | 152 sqm | $810,000 | $5,329 |
| Mar 2021 | 07 TO 09 | 4 ROOM | 109 sqm | $535,000 | $4,908 |
About Block 231 Hougang Street 21
Block 231 at Hougang Street 21 is a residential HDB block in Hougang, Singapore, built in 1984 with approximately 57 years remaining on its 99-year lease. The block contains 4 room, 5 room flats, with resale prices ranging from $518,000 to $1,150,000 based on 29 recorded transactions since January 2017. The most recent transaction was a 5 room flat on storeys 04 TO 06 sold for $980,000 in 2026-01. The current median price per square metre is $5,688. Over the past five years, resale prices at this block have increased by approximately 88.6%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8629, with an annual lease decay rate of approximately 0.56%. All transaction data is sourced from Singapore's data.gov.sg open data platform and is updated monthly.
Frequently Asked Questions
How much is an HDB flat at Block 231 Hougang Street 21 worth?
The most recent resale transaction at Block 231 Hougang Street 21 was $980,000 for a 5 room flat in 2026-01. The median price per square metre across all flat types is $5,688, based on 29 transactions since January 2017. Data sourced from data.gov.sg.
What is the remaining lease for Block 231 Hougang Street 21?
Block 231 Hougang Street 21 was built in 1984 and has approximately 57 years and 9 months remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.56%, meaning the leasehold value decreases by approximately 0.56% per year at the current remaining lease.
What flat types are available at Block 231 Hougang Street 21?
Block 231 Hougang Street 21 in Hougang contains 4 room, 5 room flats. Resale prices range from $518,000 to $1,150,000 based on historical transaction records from data.gov.sg.
Have HDB prices at Block 231 Hougang Street 21 gone up or down?
Resale prices at Block 231 Hougang Street 21 have increased by approximately 88.6% over the past five years. The current median price is $810,000, with the most recent sale at $980,000 in 2026-01.