Block 421 Serangoon Central
Block 421 Serangoon Central has 16 recorded HDB resale transactions since 2017. Latest sale: $865,000 (Apr 2026, 4 room, floors 10–12). Median $6,468/sqm. Prices up 31.3% over the past five years. Built 1989, 62 years lease remaining.
What this block rents for, and the gross rental yield (annual rent ÷ resale price). This block has too few rentals on record, so figures shown are the Serangoon average.
| Flat type | Median rent /mo | Gross yield | Based on |
|---|---|---|---|
| 4-Room | $3,400 typically $3,100–$3,700 | 6.2% | Serangoon avg · block too thin |
| 5-Room | $3,600 typically $3,400–$3,900 | 5.2% | Serangoon avg · block too thin |
This block is inside the 1 km Primary 1 priority zone for 2 popular schools. When a school is oversubscribed, MOE ballots by home–school distance, and homes within 1 km are drawn first.
- This home
- School within 1 km
- School 1–2 km
- 1km ring, top priority
- 2km ring, next tier
Straight-line distances, the basis MOE uses for Home–School Distance priority. Tap a school to open it. Map © OneMap, SLA.
Other HDB blocks closest to Block 421 Serangoon Central in Serangoon, with their median resale price. Useful for comparing what a flat here costs against its immediate neighbours.
| 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 Serangoon Central in Serangoon has been a strong performer, with resale prices up roughly 31.3% over five years. Its median runs about 31% above the Serangoon median, ahead of around 74% of the town's blocks. It has a relatively light resale record, with 16 transactions since 2017 across 4 room, 5 room flats priced from $520,000 to $875,000. The most recent transaction was a 4 room flat on storeys 10 TO 12 at $865,000 in Apr 2026, and the median works out to $6,468/sqm. Under Bala's Table (the SLA leasehold valuation model), its leasehold relativity ratio is 0.8818, an annual lease decay of about 0.47%. All transaction data is sourced from data.gov.sg and 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.