Blk 421 Ang Mo Kio Ave 10
Completed 1978 · 13 storeys · 134 flats · 52 years 06 months remaining · 25 resale transactions on record · median household income in Ang Mo Kio: $7,500/mo (lowest quartile island-wide)
13 storeys · completed 1978 · shops below
What the record shows
A 3-room here sold for $458,000 in Feb 2026. The same flat type in this block averaged $340,981 in 2020 - a gain of $117,019 - about $53 a day while the owner slept.
In this block, 3-room flats from floor 9 up have sold for a median of $420,000 - $30,000 more than floors 4 and below, same flat type, same block.
This block crossed 60 years remaining in 2018 - the line where CPF usage rules tighten for buyers. In Ang Mo Kio over the last two years, flats below that line sold at a median 39% below their younger neighbours' PSF (1,549 sales).
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 | Ang Mo Kio median | Gross yield | Rented |
|---|---|---|---|---|---|
| 3-ROOM | $2,925/mo | $2,400–$3,500 | $2,800/mo | - | 6 |
| 4-ROOM | $3,600/mo | $3,600–$3,600 | $3,400/mo | - | 1 |
Price trend
median PSF by year · ━ this block · ╌ Ang Mo Kio · gaps = years with no sales here
The height gradient
every sale in 5 years, plotted by starting floor · 12 sales - do higher floors really fetch more here?
Every recent sale HDB official record, latest 25
| Month | Type | Storey | Area (sqm) | Price | PSF | Lease left |
|---|---|---|---|---|---|---|
| Feb 2026 | 3 ROOM | 13 to 15 | 74 | $458,000 | $575 | 52y 06m |
| Jul 2025 | 3 ROOM | 07 to 09 | 74 | $445,000 | $559 | 53y 02m |
| Jun 2025 | 3 ROOM | 04 to 06 | 74 | $450,000 | $565 | 53y 03m |
| Nov 2024 | 3 ROOM | 10 to 12 | 74 | $475,000 | $596 | 53y 10m |
| Oct 2024 | 3 ROOM | 07 to 09 | 74 | $430,000 | $540 | 53y 11m |
| Jun 2024 | 4 ROOM | 04 to 06 | 99 | $490,000 | $460 | 54y 03m |
| Nov 2023 | 3 ROOM | 10 to 12 | 74 | $375,000 | $471 | 54y 10m |
| Feb 2023 | 3 ROOM | 10 to 12 | 74 | $440,000 | $552 | 55y 07m |
| Feb 2023 | 3 ROOM | 10 to 12 | 74 | $420,000 | $527 | 55y 07m |
| Nov 2021 | 3 ROOM | 10 to 12 | 74 | $352,000 | $442 | 56y 10m |
| Aug 2021 | 3 ROOM | 10 to 12 | 74 | $335,000 | $421 | 57y 01m |
| Aug 2021 | 3 ROOM | 04 to 06 | 74 | $330,000 | $414 | 57y 02m |
| Jun 2021 | 4 ROOM | 07 to 09 | 99 | $428,000 | $402 | 57y 03m |
| Jun 2021 | 3 ROOM | 07 to 09 | 74 | $353,888 | $444 | 57y 02m |
| Feb 2021 | 3 ROOM | 04 to 06 | 89 | $350,000 | $365 | 57y 07m |
| Nov 2020 | 4 ROOM | 13 to 15 | 99 | $375,000 | $352 | 57y 10m |
| Nov 2020 | 3 ROOM | 01 to 03 | 74 | $325,000 | $408 | 57y 10m |
| Aug 2020 | 4 ROOM | 04 to 06 | 99 | $390,000 | $366 | 58y |
| Aug 2019 | 3 ROOM | 13 to 15 | 74 | $310,000 | $389 | 59y |
| Aug 2019 | 4 ROOM | 10 to 12 | 99 | $400,000 | $375 | 59y |
| Jan 2019 | 3 ROOM | 04 to 06 | 74 | $285,000 | $358 | 59y 07m |
| Jan 2019 | 3 ROOM | 13 to 15 | 74 | $330,000 | $414 | 59y 08m |
| Nov 2017 | 3 ROOM | 04 to 06 | 74 | $295,000 | $370 | 60y 09m |
| Oct 2017 | 3 ROOM | 10 to 12 | 74 | $370,000 | $465 | 60y 10m |
| Aug 2017 | 3 ROOM | 07 to 09 | 74 | $348,000 | $437 | 61y |
Who lives in Ang Mo Kio
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.
built 1979 · same generation
built 1978 · same generation
built 1978 · same generation
3-room median $19k below this block · 4 vs 5 sales
3-room median $28k below this block · 5 vs 5 sales
3-room median $20k below this block · 7 vs 5 sales
Condos nearby
The private premium, measured: the nearest condo trades at 3.5×this block’s PSF.
Grounded in this block’s own resale record, trend and lease - ask away.