4-Room resale prices at Blk 821 Yishun St 81
Resales from Jan 2017 to Nov 2025 · single-unit sales only
What do 4-room flats at Blk 821 Yishun St 81 sell for?
Median price since Jan 201725th to 75th percentile · S$4,808 psm median (S$4,327 psm – S$5,510 psm) · from 5 recorded sales
5 recorded resales of 4-room flats at Blk 821 Yishun St 81 since Jan 2017 had a median price of S$500,000 (25th to 75th percentile S$450,000 to S$573,000) and a median S$4,808 psm (S$4,327 psm to S$5,510 psm). Latest recorded sale Nov 2025. Indicative, from recorded HDB resale prices.
Latest sale
S$610,000 · 104 sqm · S$5,865 psm · Nov 2025 · storeys 7 to 9
The latest sale, in Nov 2025, had 61 years 2 months of lease remaining, as HDB recorded it.
By year
| Year | Sales | Median price | 25th to 75th percentile | Median psm |
|---|---|---|---|---|
| 2019 | 1 | S$355,000 | one sale | S$3,413 psm |
| 2021 | 1 | S$500,000 | one sale | S$4,808 psm |
| 2022 | 1 | S$450,000 | one sale | S$4,327 psm |
| 2024 | 1 | S$573,000 | one sale | S$5,510 psm |
| 2025 | 1 | S$610,000 | one sale | S$5,865 psm |
Which storeys sold?
| Storeys | Sales |
|---|---|
| Storeys 4 to 6 | 2 |
| Storeys 7 to 9 | 1 |
| Storeys 10 to 12 | 2 |
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.