Blk 509B Yishun Avenue 4 — HDB resale prices
HDB resale prices, Yishun · 4-Room, 5-Room · built 2016
median resale price, last 24 months
11 sales in that window · as of Sep 2026
How it compares
Blk 509B Yishun Avenue 4 is an HDB block in Yishun (completed in 2016, 13 storeys, 96 units). As of Sep 2026, its median resale price over the last 24 months is $650,000, about 21% above the Yishun median, from 11 sales. 27 resale transactions have been recorded here since 1990.
Price by year
At a glance
Unit mix (sold): 4-room ×48 · 5-room ×48
Prices by flat type — last 24 months (as of Sep 2026)
Median monthly rent at this block: $2,850/mo (2 rental contracts, last 12 months).
Estimated gross rental yield: ~5.3% (Yishun average: ~6.6%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 32% of Yishun blocks with recent sales.
What the price model says
For a typical 4-room flat here, our price model estimates $592,536–$662,438 (central estimate $627,487). Recent sales — median $580,004 — sit below that range. The model explains 94% of resale prices with a typical error of ±6%. Indicative only — not an official valuation.
Median resale price by year
| Year | Median (nominal) | Median (today's $) | Sales |
|---|---|---|---|
| 2022 | $555,888 | $602,071 | 9 |
| 2023 | $560,888 | $579,478 | 3 |
| 2024 | $591,500 | $596,841 | 4 |
| 2025 | $646,000 | $646,000 | 6 |
| 2026 | $650,000 | $650,000 | 5 |
Records
| Record sale | $782,000 (5-Room, 2026-08) |
|---|---|
| First recorded sale | $522,000 (2022-03) |
| Busiest year | 2022 · 9 sales |
| Total transacted | $16.7M across 27 sales |
Recent resale transactions
| Month | Flat type | Storey | Area | Price |
|---|---|---|---|---|
| 2026-08 | 5-Room | 10–12 | 113 m² | $782,000 |
| 2026-04 | 4-Room | 04–06 | 93 m² | $560,000 |
| 2026-03 | 5-Room | 07–09 | 113 m² | $743,000 |
| 2026-03 | 4-Room | 10–12 | 93 m² | $650,000 |
| 2026-02 | 4-Room | 01–03 | 93 m² | $570,000 |
| 2025-12 | 4-Room | 01–03 | 93 m² | $570,000 |
| 2025-11 | 5-Room | 04–06 | 113 m² | $690,000 |
| 2025-10 | 5-Room | 04–06 | 113 m² | $680,000 |
| 2025-09 | 5-Room | 04–06 | 113 m² | $708,000 |
| 2025-08 | 4-Room | 04–06 | 93 m² | $612,000 |
| 2025-01 | 4-Room | 04–06 | 93 m² | $611,000 |
| 2024-08 | 5-Room | 10–12 | 113 m² | $738,000 |
| 2024-08 | 4-Room | 10–12 | 93 m² | $600,000 |
| 2024-02 | 4-Room | 10–12 | 93 m² | $583,000 |
| 2024-01 | 4-Room | 10–12 | 93 m² | $565,000 |
| 2023-11 | 4-Room | 04–06 | 93 m² | $560,888 |
| 2023-10 | 4-Room | 04–06 | 93 m² | $545,000 |
| 2023-01 | 5-Room | 10–12 | 113 m² | $675,000 |
| 2022-08 | 5-Room | 07–09 | 113 m² | $650,000 |
| 2022-08 | 4-Room | 10–12 | 93 m² | $555,888 |
Yishun Avenue 4 blocks ranked by price
Showing the top 15 of 45 priced blocks.
More blocks on Yishun Avenue 4
Quick answers
How much does a flat at Blk 509B Yishun Avenue 4 cost?
The median resale price over the last 24 months is $650,000 (11 sales, as of Sep 2026). See the by-type table above for 3-room vs 4-room medians.
Is Blk 509B Yishun Avenue 4 fairly priced?
For a typical 4-room flat here, our price model estimates $592,536–$662,438 (central estimate $627,487). Recent sales — median $580,004 — sit below that range.
What is the rent at Blk 509B Yishun Avenue 4?
The median monthly rent is $2,850/mo over the last 12 months (2 contracts).
How old is Blk 509B Yishun Avenue 4?
The block was completed in 2016 and its 99-year lease runs from 2018.