4-Room resale prices at Blk 420 Serangoon Ctrl
Resales from Jan 2017 to Sep 2026 · single-unit sales only
What do 4-room flats at Blk 420 Serangoon Ctrl sell for?
Median price since Jan 201725th to 75th percentile · S$7,705 psm median (S$5,758 psm – S$8,065 psm) · from 10 recorded sales
10 recorded resales of 4-room flats at Blk 420 Serangoon Ctrl since Jan 2017 had a median price of S$772,500 (25th to 75th percentile S$608,750 to S$847,416) and a median S$7,705 psm (S$5,758 psm to S$8,065 psm). Latest recorded sale Sep 2026. Indicative, from recorded HDB resale prices.
Latest sale
S$755,000 · 93 sqm · S$8,118 psm · Sep 2026 · storeys 7 to 9
The latest sale, in Sep 2026, had 62 years 3 months of lease remaining, as HDB recorded it.
By year
| Year | Sales | Median price | 25th to 75th percentile | Median psm |
|---|---|---|---|---|
| 2017 | 1 | S$593,000 | one sale | S$5,757 psm |
| 2019 | 2 | S$595,000 | S$582,500 – S$607,500 | S$5,558 psm |
| 2021 | 1 | S$605,000 | one sale | S$5,762 psm |
| 2024 | 2 | S$809,000 | S$799,500 – S$818,500 | S$7,705 psm |
| 2025 | 3 | S$858,888 | S$856,388 – S$859,444 | S$8,190 psm |
| 2026 | 1 | S$755,000 | one sale | S$8,118 psm |
Which storeys sold?
| Storeys | Sales |
|---|---|
| Storeys 1 to 3 | 1 |
| Storeys 4 to 6 | 2 |
| Storeys 7 to 9 | 2 |
| Storeys 10 to 12 | 5 |
How this is worked out
Every figure is HDB resales of this flat type in this block with a contract date since Jan 2017, leaving out sales flagged at ingest as unrepresentative (such as related-party transfers and statistical outliers). A page is published only with at least 5 such sales. Storeys are the ranges HDB records, not exact floors.