Blk 421 Serangoon Ctrl
Not shown
Fewer than 3 resales of any one flat type in the 12 months to September 2026, so no median
$865,000
Latest resale, April 2026: 4-room, storeys 10 to 12, 105 sqm
16
Resales since November 2017
Blk 421 Serangoon Ctrl in Serangoon has had 16 resales registered since November 2017. The latest, in April 2026, was a 4-room on storeys 10 to 12 (105 sqm) at $865,000. Fewer than 3 resales of any one flat type here in the 12 months to September 2026, so no block median is shown.
- Completed 1988
- Lease from 1989
- 13 storeys
- 96 flats
HDB's count of flats in the block, sold flats: 72 4-room, 24 5-room.
What's my flat worth? A free estimate from registered resales.
Value my flatLast 12 months by flat type
| Flat type | Median here | Serangoon median | Resales here |
|---|---|---|---|
| 4-room | fewer than 3 | $660,000 | 1 |
Resales registered from October 2025 to September 2026. A median needs at least 3 resales.
Every resale since November 2017
Storeys are HDB's published storey ranges. Unit numbers are never shown. Remaining lease is as HDB published it at the time of sale. Month is the month the resale was registered.
| Month | Price | Flat type | Storeys | Floor area | Remaining lease | Model | Lease from |
|---|---|---|---|---|---|---|---|
| Apr 2026 | $865,000 | 4-room | 10 to 12 | 105 sqm | 62 years 01 month | Model A | 1989 |
| Mar 2025 | $818,000 | 5-room | 04 to 06 | 121 sqm | 63 years 03 months | Improved | 1989 |
| Oct 2023 | $770,000 | 4-room | 07 to 09 | 103 sqm | 64 years 08 months | Model A | 1989 |
| Jul 2023 | $875,000 | 5-room | 04 to 06 | 121 sqm | 65 years | Improved | 1989 |
| Apr 2023 | $730,000 | 4-room | 10 to 12 | 113 sqm | 65 years 02 months | Model A | 1989 |
| Sep 2022 | $680,000 | 4-room | 04 to 06 | 105 sqm | 65 years 09 months | Model A | 1989 |
| Sep 2022 | $627,000 | 4-room | 07 to 09 | 94 sqm | 65 years 08 months | New Generation | 1989 |
| Feb 2022 | $748,000 | 4-room | 13 to 15 | 111 sqm | 66 years 03 months | Model A | 1989 |
| Sep 2021 | $678,000 | 4-room | 07 to 09 | 103 sqm | 66 years 09 months | Model A | 1989 |
| Jul 2021 | $640,000 | 4-room | 10 to 12 | 105 sqm | 66 years 11 months | Model A | 1989 |
| Jul 2020 | $660,000 | 4-room | 04 to 06 | 111 sqm | 67 years 10 months | Model A | 1989 |
| Jun 2020 | $520,000 | 4-room | 10 to 12 | 103 sqm | 68 years 01 month | Model A | 1989 |
| Jun 2019 | $635,000 | 4-room | 07 to 09 | 105 sqm | 68 years 11 months | Model A | 1989 |
| Jan 2019 | $635,000 | 4-room | 10 to 12 | 105 sqm | 69 years 05 months | Model A | 1989 |
| Nov 2018 | $628,000 | 4-room | 04 to 06 | 103 sqm | 69 years 06 months | Model A | 1989 |
| Nov 2017 | $700,000 | 4-room | 10 to 12 | 113 sqm | 70 years 06 months | Model A | 1989 |