Blk 509 Choa Chu Kang St 51 is an HDB block in Choa Chu Kang (completed in 1993, 14 storeys, 54 units). As of Jul 2026, its median resale price over the last 24 months is $705,000, about 26% above the Choa Chu Kang median, from 2 sales. 46 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Choa Chu Kang |
|---|---|
| Completed | 1993 |
| Lease from | 1995 |
| Storeys | 14 |
| Dwelling units | 54 |
| Unit mix (sold) | 5-room ×54 |
| Recorded resales | 46 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 5-Room | $705,000 | $5,223/m² | 2 |
Median monthly rent at this block: $3,300/mo (3 rental contracts, last 12 months).
Estimated gross rental yield: ~5.6% (Choa Chu Kang average: ~6.4%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 70% of Choa Chu Kang blocks with recent sales.
For a typical 5-room flat here, our price model estimates $607,126–$679,158 (central estimate $643,142). Recent sales — median $624,122 — sit within 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 |
|---|---|---|---|
| 1998 | $383,000 | $612,687 | 5 |
| 1999 | $361,000 | $577,356 | 10 |
| 2000 | $384,500 | $606,756 | 4 |
| 2001 | $341,400 | $533,338 | 2 |
| 2002 | $327,000 | $512,851 | 3 |
| 2003 | $320,000 | $499,435 | 1 |
| 2005 | $290,000 | $443,073 | 1 |
| 2006 | $225,000 | $340,474 | 1 |
| 2007 | $296,500 | $439,398 | 2 |
| 2009 | $368,000 | $508,432 | 1 |
| 2010 | $417,500 | $560,953 | 4 |
| 2012 | $508,000 | $620,085 | 1 |
| 2013 | $547,000 | $652,272 | 1 |
| 2014 | $462,000 | $545,275 | 1 |
| 2015 | $455,250 | $540,132 | 2 |
| 2018 | $420,000 | $495,913 | 1 |
| 2021 | $530,000 | $609,227 | 1 |
| 2022 | $550,000 | $595,694 | 3 |
| 2025 | $710,000 | $710,000 | 1 |
| 2026 | $700,000 | $700,000 | 1 |
| Record sale | $710,000 (5-Room, 2025-01) |
|---|---|
| First recorded sale | $380,000 (1998-10) |
| Busiest year | 1999 · 10 sales |
| Total transacted | $18.7M across 46 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2026-07 | 5-Room | 13 TO 15 | 133 | $700,000 |
| 2025-01 | 5-Room | 13 TO 15 | 137 | $710,000 |
| 2022-10 | 5-Room | 04 TO 06 | 136 | $590,000 |
| 2022-02 | 5-Room | 01 TO 03 | 132 | $528,000 |
| 2022-02 | 5-Room | 04 TO 06 | 131 | $550,000 |
| 2021-11 | 5-Room | 13 TO 15 | 133 | $530,000 |
| 2018-08 | 5-Room | 04 TO 06 | 131 | $420,000 |
| 2015-11 | 5-Room | 04 TO 06 | 131 | $468,000 |
| 2015-01 | 5-Room | 13 TO 15 | 133 | $442,500 |
| 2014-09 | 5-Room | 04 TO 06 | 136 | $462,000 |
| 2013-07 | 5-Room | 10 TO 12 | 131 | $547,000 |
| 2012-11 | 5-Room | 01 TO 03 | 132 | $508,000 |
| 2010-09 | 5-Room | 04 TO 06 | 131 | $440,000 |
| 2010-05 | 5-Room | 04 TO 06 | 131 | $400,000 |
| 2010-02 | 5-Room | 01 TO 03 | 136 | $420,000 |
| 2010-02 | 5-Room | 13 TO 15 | 133 | $415,000 |
| 2009-03 | 5-Room | 07 TO 09 | 133 | $368,000 |
| 2007-12 | 5-Room | 04 TO 06 | 133 | $300,000 |
| 2007-06 | 5-Room | 04 TO 06 | 131 | $293,000 |
| 2006-06 | 5-Room | 04 TO 06 | 133 | $225,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 529 | $797,294 | $5,424/m² |
| 2. Blk 527 | $760,000 | $5,315/m² |
| 3. Blk 523 | $758,000 | $5,156/m² |
| 4. Blk 531 | $755,000 | $5,101/m² |
| 5. Blk 530 | $752,388 | $5,244/m² |
| 6. Blk 526 | $750,944 | $5,308/m² |
| 7. Blk 510 | $745,000 | $5,687/m² |
| 8. Blk 528 | $735,000 | $4,997/m² |
| 9. Blk 525 | $723,444 | $5,095/m² |
| 10. Blk 509 | $705,000 | $5,223/m² |
| 11. Blk 507 | $703,444 | $5,211/m² |
| 12. Blk 515 | $700,000 | $5,263/m² |
| 13. Blk 508 | $699,000 | $5,140/m² |
| 14. Blk 511 | $675,000 | $5,273/m² |
| 15. Blk 516 | $672,500 | $5,260/m² |
Showing the top 15 of 26 blocks.
The median resale price over the last 24 months is $705,000 (2 sales, as of Jul 2026). See the by-type table above for 3-room vs 4-room medians.
For a typical 5-room flat here, our price model estimates $607,126–$679,158 (central estimate $643,142). Recent sales — median $624,122 — sit within that range.
The median monthly rent is $3,300/mo over the last 12 months (3 contracts).
The block was completed in 1993 and its 99-year lease runs from 1995.