Blk 509C Yishun Ave 4 is an HDB block in Yishun (completed in 2016, 13 storeys, 96 units). As of Jul 2026, its median resale price over the last 24 months is $750,000, about 47% above the Yishun median, from 5 sales. 26 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Yishun |
|---|---|
| Completed | 2016 |
| Lease from | 2018 |
| Storeys | 13 |
| Dwelling units | 96 |
| Unit mix (sold) | 4-room ×72 · 5-room ×24 |
| Recorded resales | 26 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 4-Room | $565,000 | $6,075/m² | 2 |
| 5-Room | $775,000 | $6,858/m² | 3 |
On price per square metre, this block is cheaper than 15% of Yishun blocks with recent sales.
For a typical 4-room flat here, our price model estimates $609,889–$682,249 (central estimate $646,069). Recent sales — median $574,388 — sit below that range. The model explains 94% of resale prices with a typical error of ±6%. Indicative only — not an official valuation.
| Year | Median (nominal) | Median (today's $) | Sales |
|---|---|---|---|
| 2021 | $500,000 | $574,743 | 1 |
| 2022 | $535,000 | $579,448 | 10 |
| 2023 | $560,000 | $578,560 | 7 |
| 2024 | $592,944 | $598,298 | 4 |
| 2026 | $762,500 | $762,500 | 4 |
| Record sale | $775,000 (5-Room, 2026-06) |
|---|---|
| First recorded sale | $500,000 (2021-12) |
| Busiest year | 2022 · 10 sales |
| Total transacted | $15.2M across 26 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2026-06 | 5-Room | 07 TO 09 | 113 | $775,000 |
| 2026-06 | 5-Room | 10 TO 12 | 113 | $775,000 |
| 2026-04 | 4-Room | 01 TO 03 | 93 | $575,000 |
| 2026-03 | 5-Room | 10 TO 12 | 113 | $750,000 |
| 2024-08 | 4-Room | 01 TO 03 | 93 | $555,000 |
| 2024-07 | 4-Room | 10 TO 12 | 93 | $605,000 |
| 2024-07 | 5-Room | 04 TO 06 | 113 | $706,888 |
| 2024-03 | 4-Room | 07 TO 09 | 93 | $580,888 |
| 2023-11 | 4-Room | 10 TO 12 | 93 | $560,000 |
| 2023-08 | 5-Room | 01 TO 03 | 113 | $628,000 |
| 2023-06 | 4-Room | 10 TO 12 | 93 | $565,000 |
| 2023-06 | 5-Room | 01 TO 03 | 113 | $615,000 |
| 2023-05 | 4-Room | 07 TO 09 | 93 | $520,000 |
| 2023-02 | 4-Room | 04 TO 06 | 93 | $500,000 |
| 2023-01 | 4-Room | 07 TO 09 | 93 | $520,000 |
| 2022-10 | 4-Room | 13 TO 15 | 93 | $574,000 |
| 2022-07 | 4-Room | 13 TO 15 | 93 | $530,000 |
| 2022-07 | 4-Room | 07 TO 09 | 93 | $555,000 |
| 2022-06 | 4-Room | 01 TO 03 | 93 | $478,000 |
| 2022-06 | 4-Room | 04 TO 06 | 93 | $520,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 652 | $1,200,000 | $6,630/m² |
| 2. Blk 666 | $1,120,000 | $6,829/m² |
| 3. Blk 654 | $997,500 | $6,082/m² |
| 4. Blk 661 | $915,444 | $6,117/m² |
| 5. Blk 664 | $905,000 | $5,754/m² |
| 6. Blk 509C | $750,000 | $6,637/m² |
| 7. Blk 665 | $750,000 | $5,682/m² |
| 8. Blk 860 | $716,500 | $5,873/m² |
| 9. Blk 509A | $708,000 | $6,460/m² |
| 10. Blk 859 | $705,944 | $5,786/m² |
| 11. Blk 657 | $690,000 | $5,702/m² |
| 12. Blk 863 | $680,000 | $5,656/m² |
| 13. Blk 508B | $680,000 | $6,667/m² |
| 14. Blk 864 | $667,500 | $5,890/m² |
| 15. Blk 673B | $666,000 | $6,989/m² |
Showing the top 15 of 46 blocks.
The median resale price over the last 24 months is $750,000 (5 sales, as of Jul 2026). See the by-type table above for 3-room vs 4-room medians.
For a typical 4-room flat here, our price model estimates $609,889–$682,249 (central estimate $646,069). Recent sales — median $574,388 — sit below that range.
The block was completed in 2016 and its 99-year lease runs from 2018.