Block 421 Serangoon Central
| Date | Floor | Type | Area | Price | $/sqm |
|---|---|---|---|---|---|
| Apr 2026 | 10 TO 12 | 4 ROOM | 105 sqm | $865,000 | $8,238 |
| Mar 2025 | 04 TO 06 | 5 ROOM | 121 sqm | $818,000 | $6,760 |
| Oct 2023 | 07 TO 09 | 4 ROOM | 103 sqm | $770,000 | $7,476 |
| Jul 2023 | 04 TO 06 | 5 ROOM | 121 sqm | $875,000 | $7,231 |
| Apr 2023 | 10 TO 12 | 4 ROOM | 113 sqm | $730,000 | $6,460 |
| Sep 2022 | 07 TO 09 | 4 ROOM | 94 sqm | $627,000 | $6,670 |
| Sep 2022 | 04 TO 06 | 4 ROOM | 105 sqm | $680,000 | $6,476 |
| Feb 2022 | 13 TO 15 | 4 ROOM | 111 sqm | $748,000 | $6,739 |
| Sep 2021 | 07 TO 09 | 4 ROOM | 103 sqm | $678,000 | $6,583 |
| Jul 2021 | 10 TO 12 | 4 ROOM | 105 sqm | $640,000 | $6,095 |
| Jul 2020 | 04 TO 06 | 4 ROOM | 111 sqm | $660,000 | $5,946 |
| Jun 2020 | 10 TO 12 | 4 ROOM | 103 sqm | $520,000 | $5,049 |
| Jun 2019 | 07 TO 09 | 4 ROOM | 105 sqm | $635,000 | $6,048 |
| Jan 2019 | 10 TO 12 | 4 ROOM | 105 sqm | $635,000 | $6,048 |
| Nov 2018 | 04 TO 06 | 4 ROOM | 103 sqm | $628,000 | $6,097 |
| Nov 2017 | 10 TO 12 | 4 ROOM | 113 sqm | $700,000 | $6,195 |
About Block 421 Serangoon Central
Block 421 at Serangoon Central is a residential HDB block in Serangoon, Singapore, built in 1989 with approximately 62 years remaining on its 99-year lease. The block contains 4 room, 5 room flats, with resale prices ranging from $520,000 to $875,000 based on 16 recorded transactions since January 2017. The most recent transaction was a 4 room flat on storeys 10 TO 12 sold for $865,000 in 2026-04. The current median price per square metre is $6,468. Over the past five years, resale prices at this block have increased by approximately 31.3%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8818, with an annual lease decay rate of approximately 0.47%. 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 421 Serangoon Central worth?
The most recent resale transaction at Block 421 Serangoon Central was $865,000 for a 4 room flat in 2026-04. The median price per square metre across all flat types is $6,468, based on 16 transactions since January 2017. Data sourced from data.gov.sg.
What is the remaining lease for Block 421 Serangoon Central?
Block 421 Serangoon Central was built in 1989 and has approximately 62 years and 1 months remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.47%, meaning the leasehold value decreases by approximately 0.47% per year at the current remaining lease.
What flat types are available at Block 421 Serangoon Central?
Block 421 Serangoon Central in Serangoon contains 4 room, 5 room flats. Resale prices range from $520,000 to $875,000 based on historical transaction records from data.gov.sg.
Have HDB prices at Block 421 Serangoon Central gone up or down?
Resale prices at Block 421 Serangoon Central have increased by approximately 31.3% over the past five years. The current median price is $679,000, with the most recent sale at $865,000 in 2026-04.