Blk 423 Choa Chu Kang Avenue 4 — HDB resale prices
HDB resale prices, Choa Chu Kang · 4-Room, 5-Room · built 1990
median resale price, last 24 months
8 sales in that window · as of Sep 2026
How it compares
Blk 423 Choa Chu Kang Avenue 4 is an HDB block in Choa Chu Kang (completed in 1990, 12 storeys, 115 units). As of Sep 2026, its median resale price over the last 24 months is $557,778, about 5% below the Choa Chu Kang median, from 8 sales. 116 resale transactions have been recorded here since 1990.
Price by year
At a glance
Unit mix (sold): 4-room ×93 · 5-room ×22
Prices by flat type — last 24 months (as of Sep 2026)
Median monthly rent at this block: $3,100/mo (2 rental contracts, last 12 months).
Estimated gross rental yield: ~6.7% (Choa Chu Kang average: ~6.5%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 68% of Choa Chu Kang blocks with recent sales.
What the price model says
For a typical 4-room flat here, our price model estimates $512,941–$573,453 (central estimate $543,197). Recent sales — median $550,000 — sit within 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 |
|---|---|---|---|
| 1995 | $268,000 | $442,224 | 1 |
| 1996 | $330,500 | $537,930 | 10 |
| 1997 | $325,000 | $518,490 | 10 |
| 1998 | $273,000 | $436,720 | 11 |
| 1999 | $253,000 | $404,629 | 11 |
| 2000 | $315,000 | $497,082 | 6 |
| 2001 | $222,750 | $347,982 | 4 |
| 2002 | $209,000 | $327,785 | 9 |
| 2003 | $225,000 | $351,165 | 1 |
| 2004 | $215,700 | $331,114 | 3 |
| 2005 | $221,000 | $337,652 | 4 |
| 2006 | $233,500 | $353,337 | 2 |
| 2007 | $287,000 | $425,320 | 1 |
| 2008 | $277,500 | $385,651 | 2 |
| 2009 | $305,000 | $421,391 | 3 |
| 2010 | $365,000 | $490,414 | 5 |
| 2011 | $406,500 | $518,921 | 4 |
| 2012 | $455,000 | $555,391 | 3 |
| 2014 | $380,000 | $448,494 | 2 |
| 2015 | $385,000 | $456,784 | 2 |
| 2016 | $360,000 | $429,395 | 1 |
| 2017 | $365,500 | $433,455 | 2 |
| 2018 | $333,000 | $393,188 | 3 |
| 2019 | $348,500 | $409,168 | 2 |
| 2020 | $370,000 | $435,160 | 3 |
| 2021 | $487,000 | $559,800 | 1 |
| 2023 | $591,000 | $610,588 | 1 |
| 2024 | $540,000 | $544,876 | 1 |
| 2025 | $557,778 | $557,778 | 4 |
| 2026 | $565,000 | $565,000 | 4 |
Records
| Record sale | $635,000 (5-Room, 2025-02) |
|---|---|
| First recorded sale | $268,000 (1995-10) |
| Busiest year | 1998 · 11 sales |
| 10-year change (real) | +32% (+2.8%/yr, 2016→2026) |
| Total transacted | $38.1M across 116 sales |
Recent resale transactions
| Month | Flat type | Storey | Area | Price |
|---|---|---|---|---|
| 2026-07 | 4-Room | 10–12 | 104 m² | $590,000 |
| 2026-05 | 4-Room | 01–03 | 104 m² | $540,000 |
| 2026-04 | 5-Room | 01–03 | 122 m² | $630,000 |
| 2026-03 | 4-Room | 04–06 | 104 m² | $540,000 |
| 2025-11 | 4-Room | 04–06 | 104 m² | $560,555 |
| 2025-07 | 4-Room | 10–12 | 104 m² | $555,000 |
| 2025-02 | 5-Room | 04–06 | 122 m² | $635,000 |
| 2025-02 | 4-Room | 04–06 | 104 m² | $550,000 |
| 2024-07 | 4-Room | 10–12 | 104 m² | $540,000 |
| 2023-06 | 5-Room | 07–09 | 122 m² | $591,000 |
| 2021-08 | 5-Room | 01–03 | 122 m² | $487,000 |
| 2020-09 | 4-Room | 07–09 | 104 m² | $380,000 |
| 2020-06 | 4-Room | 10–12 | 104 m² | $370,000 |
| 2020-01 | 4-Room | 01–03 | 104 m² | $310,000 |
| 2019-09 | 4-Room | 04–06 | 104 m² | $352,000 |
| 2019-01 | 4-Room | 04–06 | 104 m² | $345,000 |
| 2018-09 | 5-Room | 10–12 | 122 m² | $450,000 |
| 2018-04 | 4-Room | 01–03 | 104 m² | $295,000 |
| 2018-01 | 4-Room | 04–06 | 104 m² | $333,000 |
| 2017-07 | 4-Room | 10–12 | 104 m² | $373,000 |
Choa Chu Kang Avenue 4 blocks ranked by price
Showing the top 15 of 53 priced blocks.
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Quick answers
How much does a flat at Blk 423 Choa Chu Kang Avenue 4 cost?
The median resale price over the last 24 months is $557,778 (8 sales, as of Sep 2026). See the by-type table above for 3-room vs 4-room medians.
Is Blk 423 Choa Chu Kang Avenue 4 fairly priced?
For a typical 4-room flat here, our price model estimates $512,941–$573,453 (central estimate $543,197). Recent sales — median $550,000 — sit within that range.
What is the rent at Blk 423 Choa Chu Kang Avenue 4?
The median monthly rent is $3,100/mo over the last 12 months (2 contracts).
How old is Blk 423 Choa Chu Kang Avenue 4?
The block was completed in 1990 and its 99-year lease runs from 1992.