Blk 421 Choa Chu Kang Ave 4
Completed 1990 · 12 storeys · 88 flats · 64 years 11 months remaining · 17 resale transactions on record · median household income in Choa Chu Kang: $9,500/mo
12 storeys · completed 1990
What the record shows
In this block, 4-room flats from floor 8 up have sold for a median of $503,000 - $32,000 less than floors 4 and below, same flat type, same block.
This block crosses 60 years remaining in 2031 - the line where CPF usage rules begin tightening for buyers. In Choa Chu Kang over the last two years, flats below that line sold at a median 9% below their younger neighbours' PSF (95 sales).
A executive on Choa Chu Kang Ave 4 has already fetched $888,000 - 89% of the way to a million-dollar flat.
Across Choa Chu Kang, roughly 1,145 flats in newly-completed blocks reach the end of MOP between 2026 and 2028 - new sellers entering this market.
Rent check
What flats in this block actually rented for in the last 12 months - official approvals, not listings. If you’re quoted much more, you have a number to negotiate with.
| Type | Block median | Range | Choa Chu Kang median | Gross yield | Rented |
|---|---|---|---|---|---|
| 4-ROOM | $3,200/mo | $2,300–$3,400 | $3,100/mo | - | 3 |
Price trend
median PSF by year · ━ this block · ╌ Choa Chu Kang · gaps = years with no sales here
The height gradient
every sale in 5 years, plotted by starting floor · 10 sales - do higher floors really fetch more here?
Every recent sale HDB official record, latest 17
| Month | Type | Storey | Area (sqm) | Price | PSF | Lease left |
|---|---|---|---|---|---|---|
| Jul 2026 | 4 ROOM | 04 to 06 | 104 | $545,000 | $487 | 64y 11m |
| May 2025 | 4 ROOM | 07 to 09 | 104 | $574,888 | $514 | 66y 02m |
| Jul 2024 | 4 ROOM | 01 to 03 | 104 | $525,000 | $469 | 66y 11m |
| Mar 2024 | 5 ROOM | 10 to 12 | 132 | $620,000 | $436 | 67y 05m |
| Mar 2024 | 4 ROOM | 10 to 12 | 104 | $532,000 | $475 | 67y 05m |
| Jan 2024 | 4 ROOM | 07 to 09 | 104 | $504,888 | $451 | 67y 07m |
| Dec 2023 | 4 ROOM | 10 to 12 | 104 | $510,000 | $456 | 67y 09m |
| Apr 2023 | 4 ROOM | 10 to 12 | 104 | $496,000 | $443 | 68y 03m |
| Apr 2023 | 5 ROOM | 04 to 06 | 132 | $630,000 | $443 | 68y 03m |
| Aug 2021 | 4 ROOM | 10 to 12 | 104 | $435,000 | $389 | 69y 11m |
| Sept 2020 | 4 ROOM | 01 to 03 | 104 | $300,000 | $268 | 70y 11m |
| Oct 2019 | 4 ROOM | 01 to 03 | 104 | $315,000 | $281 | 71y 09m |
| Aug 2019 | 4 ROOM | 10 to 12 | 104 | $360,000 | $322 | 72y |
| Jun 2019 | 4 ROOM | 07 to 09 | 104 | $364,000 | $325 | 72y 01m |
| Nov 2018 | 5 ROOM | 04 to 06 | 132 | $400,000 | $282 | 72y 08m |
| Sept 2018 | 4 ROOM | 10 to 12 | 104 | $325,000 | $290 | 72y 10m |
| Jun 2018 | 5 ROOM | 07 to 09 | 132 | $405,000 | $285 | 72y 11m |
Who lives in Choa Chu Kang
Census of Population 2020 · planning-area aggregates · SingStat via data.gov.sg
The neighbourhood
What sits around this address - distances computed from official OneMap and LTA records.
The neighbourhood, photographed
freely-licensed photographs taken within ~450 m · Wikimedia Commons
Around this block
The nearest blocks by actual distance - street names are postal artifacts, so true neighbours often sit on a different road. Price gaps are median-vs-median on the flat type both blocks actually trade.
Condos nearby
The private premium, measured: the nearest condo trades at 2.5×this block’s PSF.
Grounded in this block’s own resale record, trend and lease - ask away.