Blk 447 Choa Chu Kang Ave 4 is an HDB block in Choa Chu Kang (completed in 1996, 15 storeys, 108 units). As of Jul 2026, its median resale price over the last 24 months is $560,000, from 2 sales. 93 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Choa Chu Kang |
|---|---|
| Completed | 1996 |
| Lease from | 1997 |
| Storeys | 15 |
| Dwelling units | 108 |
| Unit mix (sold) | 4-room ×56 · 5-room ×52 |
| Recorded resales | 93 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 4-Room | $560,000 | $5,572/m² | 2 |
Median monthly rent at this block: $2,300/mo (1 rental contracts, last 12 months).
Estimated gross rental yield: ~4.9% (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 34% of Choa Chu Kang blocks with recent sales.
For a typical 4-room flat here, our price model estimates $465,331–$520,540 (central estimate $492,935). Recent sales — median $509,304 — 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 |
|---|---|---|---|
| 2002 | $310,000 | $486,189 | 29 |
| 2003 | $267,000 | $416,716 | 8 |
| 2004 | $280,000 | $429,819 | 1 |
| 2005 | $223,500 | $341,472 | 5 |
| 2006 | $229,350 | $347,057 | 4 |
| 2007 | $255,000 | $377,897 | 3 |
| 2008 | $318,250 | $442,283 | 2 |
| 2009 | $301,000 | $415,864 | 4 |
| 2010 | $343,500 | $461,527 | 2 |
| 2011 | $380,000 | $485,092 | 2 |
| 2012 | $469,000 | $572,480 | 5 |
| 2013 | $420,000 | $500,830 | 1 |
| 2015 | $383,000 | $454,411 | 1 |
| 2016 | $349,888 | $417,334 | 4 |
| 2017 | $332,500 | $394,319 | 4 |
| 2018 | $345,000 | $407,357 | 3 |
| 2019 | $425,000 | $498,985 | 1 |
| 2020 | $430,000 | $505,726 | 3 |
| 2021 | $462,500 | $531,637 | 2 |
| 2022 | $495,000 | $536,125 | 2 |
| 2023 | $491,888 | $508,191 | 3 |
| 2024 | $532,500 | $537,308 | 2 |
| 2025 | $560,000 | $560,000 | 2 |
| Record sale | $572,000 (5-Room, 2023-03) |
|---|---|
| First recorded sale | $221,000 (2002-03) |
| Busiest year | 2002 · 29 sales |
| 10-year change (real) | +23% (+2.1%/yr, 2015→2025) |
| Total transacted | $31.0M across 93 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2025-05 | 4-Room | 10 TO 12 | 100 | $560,000 |
| 2025-02 | 4-Room | 10 TO 12 | 101 | $560,000 |
| 2024-07 | 4-Room | 10 TO 12 | 100 | $505,000 |
| 2024-03 | 5-Room | 01 TO 03 | 122 | $560,000 |
| 2023-05 | 4-Room | 04 TO 06 | 100 | $491,888 |
| 2023-03 | 4-Room | 07 TO 09 | 100 | $458,000 |
| 2023-03 | 5-Room | 04 TO 06 | 121 | $572,000 |
| 2022-10 | 4-Room | 13 TO 15 | 101 | $470,000 |
| 2022-08 | 5-Room | 01 TO 03 | 122 | $520,000 |
| 2021-10 | 5-Room | 10 TO 12 | 118 | $530,000 |
| 2021-04 | 4-Room | 07 TO 09 | 100 | $395,000 |
| 2020-12 | 5-Room | 04 TO 06 | 119 | $430,000 |
| 2020-12 | 5-Room | 04 TO 06 | 118 | $441,288 |
| 2020-01 | 5-Room | 07 TO 09 | 119 | $390,000 |
| 2019-12 | 5-Room | 07 TO 09 | 119 | $425,000 |
| 2018-09 | 5-Room | 01 TO 03 | 120 | $380,000 |
| 2018-06 | 4-Room | 10 TO 12 | 100 | $345,000 |
| 2018-05 | 4-Room | 10 TO 12 | 100 | $327,000 |
| 2017-10 | 4-Room | 04 TO 06 | 100 | $319,000 |
| 2017-10 | 4-Room | 04 TO 06 | 101 | $320,000 |
| 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 $560,000 (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 $465,331–$520,540 (central estimate $492,935). Recent sales — median $509,304 — sit within that range.
The median monthly rent is $2,300/mo over the last 12 months (1 contracts).
The block was completed in 1996 and its 99-year lease runs from 1997.