Blk 431 Choa Chu Kang Ave 4 is an HDB block in Choa Chu Kang (completed in 1992, 15 storeys, 94 units). As of Jul 2026, its median resale price over the last 24 months is $644,000, about 15% above the Choa Chu Kang median, from 2 sales. 98 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Choa Chu Kang |
|---|---|
| Completed | 1992 |
| Lease from | 1993 |
| Storeys | 15 |
| Dwelling units | 94 |
| Unit mix (sold) | 4-room ×59 · 5-room ×35 |
| Recorded resales | 98 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 4-Room | $578,000 | $5,207/m² | 1 |
| 5-Room | $710,000 | $5,868/m² | 1 |
Median monthly rent at this block: $3,300/mo (3 rental contracts, last 12 months).
Estimated gross rental yield: ~6.1% (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 36% of Choa Chu Kang blocks with recent sales.
For a typical 4-room flat here, our price model estimates $487,585–$545,434 (central estimate $516,509). Recent sales — median $530,625 — 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 |
|---|---|---|---|
| 1997 | $326,000 | $520,086 | 15 |
| 1998 | $388,500 | $621,485 | 10 |
| 1999 | $325,000 | $519,781 | 9 |
| 2000 | $272,500 | $430,016 | 4 |
| 2001 | $254,500 | $397,582 | 2 |
| 2002 | $220,000 | $345,037 | 5 |
| 2003 | $230,000 | $358,969 | 3 |
| 2004 | $238,000 | $365,346 | 3 |
| 2005 | $231,044 | $352,998 | 2 |
| 2006 | $245,000 | $370,739 | 2 |
| 2007 | $249,000 | $369,006 | 6 |
| 2008 | $347,000 | $482,238 | 1 |
| 2009 | $352,000 | $486,326 | 5 |
| 2010 | $362,000 | $486,383 | 3 |
| 2011 | $429,250 | $547,963 | 2 |
| 2012 | $473,000 | $577,363 | 2 |
| 2013 | $470,000 | $560,453 | 3 |
| 2014 | $438,000 | $516,949 | 3 |
| 2015 | $370,000 | $438,987 | 1 |
| 2016 | $385,000 | $459,214 | 3 |
| 2017 | $368,888 | $437,472 | 1 |
| 2019 | $424,000 | $497,811 | 1 |
| 2020 | $388,000 | $456,330 | 1 |
| 2021 | $475,000 | $546,006 | 4 |
| 2022 | $472,500 | $511,755 | 4 |
| 2024 | $530,000 | $534,786 | 1 |
| 2025 | $644,000 | $644,000 | 2 |
| Record sale | $710,000 (5-Room, 2025-06) |
|---|---|
| First recorded sale | $350,000 (1997-03) |
| Busiest year | 1997 · 15 sales |
| 10-year change (real) | +47% (+3.9%/yr, 2015→2025) |
| Total transacted | $34.3M across 98 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2025-06 | 4-Room | 01 TO 03 | 111 | $578,000 |
| 2025-06 | 5-Room | 13 TO 15 | 121 | $710,000 |
| 2024-03 | 4-Room | 10 TO 12 | 104 | $530,000 |
| 2022-10 | 4-Room | 01 TO 03 | 104 | $465,000 |
| 2022-08 | 4-Room | 13 TO 15 | 104 | $505,000 |
| 2022-06 | 4-Room | 04 TO 06 | 104 | $480,000 |
| 2022-03 | 4-Room | 10 TO 12 | 104 | $455,000 |
| 2021-10 | 4-Room | 04 TO 06 | 104 | $475,000 |
| 2021-09 | 4-Room | 04 TO 06 | 104 | $458,000 |
| 2021-07 | 5-Room | 10 TO 12 | 134 | $510,000 |
| 2021-03 | 5-Room | 01 TO 03 | 134 | $475,000 |
| 2020-08 | 4-Room | 04 TO 06 | 104 | $388,000 |
| 2019-09 | 5-Room | 04 TO 06 | 124 | $424,000 |
| 2017-08 | 4-Room | 04 TO 06 | 104 | $368,888 |
| 2016-06 | 4-Room | 01 TO 03 | 104 | $385,000 |
| 2016-06 | 4-Room | 13 TO 15 | 104 | $385,000 |
| 2016-04 | 4-Room | 04 TO 06 | 104 | $376,000 |
| 2015-04 | 4-Room | 01 TO 03 | 110 | $370,000 |
| 2014-08 | 4-Room | 10 TO 12 | 104 | $425,000 |
| 2014-03 | 4-Room | 04 TO 06 | 104 | $438,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 420 | $865,000 | $5,845/m² |
| 2. Blk 419 | $861,500 | $5,821/m² |
| 3. Blk 448 | $815,000 | $5,791/m² |
| 4. Blk 437 | $815,000 | $5,660/m² |
| 5. Blk 454 | $750,000 | $5,282/m² |
| 6. Blk 461 | $741,000 | $5,218/m² |
| 7. Blk 436 | $735,000 | $4,966/m² |
| 8. Blk 305 | $715,000 | $5,543/m² |
| 9. Blk 438 | $698,000 | $5,248/m² |
| 10. Blk 458 | $682,500 | $5,123/m² |
| 11. Blk 417 | $666,944 | $5,312/m² |
| 12. Blk 429 | $663,944 | $5,197/m² |
| 13. Blk 457 | $648,000 | $5,268/m² |
| 14. Blk 431 | $644,000 | $5,537/m² |
| 15. Blk 441 | $635,000 | $5,241/m² |
Showing the top 15 of 52 blocks.
The median resale price over the last 24 months is $644,000 (2 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 $487,585–$545,434 (central estimate $516,509). Recent sales — median $530,625 — sit within that range.
The median monthly rent is $3,300/mo over the last 12 months (3 contracts).
The block was completed in 1992 and its 99-year lease runs from 1993.