Blk 221 Serangoon Ave 4
Completed 1984 · 12 storeys · 157 flats · 57 years 05 months remaining · 46 resale transactions on record · adjoined flats on the record · median household income in Serangoon: $11,500/mo
12 storeys · completed 1984
What the record shows
A 3-room here sold for $490,000 in Jul 2026. The same flat type in this block averaged $323,313 in 2020 - a gain of $166,688 - about $76 a day while the owner slept.
In this block, 3-room flats from floor 8 up have sold for a median of $490,000 - $100,000 more than floors 4 and below, same flat type, same block.
This block crossed 60 years remaining in 2023 - the line where CPF usage rules tighten for buyers. In Serangoon over the last two years, flats below that line sold at a median 1% above their younger neighbours' PSF (481 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 | Serangoon median | Gross yield | Rented |
|---|---|---|---|---|---|
| 3-ROOM | $2,800/mo | $2,700–$3,100 | $2,800/mo | - | 3 |
| 4-ROOM | $3,350/mo | $3,100–$3,700 | $3,400/mo | - | 4 |
Price trend
median PSF by year · ━ this block · ╌ Serangoon · gaps = years with no sales here
The height gradient
every sale in 5 years, plotted by starting floor · 23 sales - do higher floors really fetch more here?
Every recent sale HDB official record, latest 30
| Month | Type | Storey | Area (sqm) | Price | PSF | Lease left |
|---|---|---|---|---|---|---|
| Jul 2026 | 3 ROOM | 10 to 12 | 67 | $490,000 | $679 | 57y 05m |
| Jan 2026 | 3 ROOM | 07 to 09 | 67 | $496,888 | $689 | 58y |
| Nov 2025 | 4 ROOM | 07 to 09 | 92 | $593,888 | $600 | 58y 02m |
| Aug 2025 | 3 ROOM | 07 to 09 | 67 | $495,000 | $686 | 58y 04m |
| Jul 2025 | 3 ROOM | 04 to 06 | 71 | $495,000 | $648 | 58y 06m |
| Jun 2025 | 3 ROOM | 07 to 09 | 67 | $510,000 | $707 | 58y 07m |
| Jun 2025 | 3 ROOM | 10 to 12 | 67 | $490,000 | $679 | 58y 07m |
| Aug 2024 | 3 ROOM | 10 to 12 | 67 | $440,000 | $610 | 59y 05m |
| Aug 2024 | 3 ROOM | 01 to 03 | 71 | $408,888 | $535 | 59y 05m |
| Jul 2024 | 4 ROOM | 10 to 12 | 99 | $620,000 | $582 | 59y 06m |
| Apr 2024 | 3 ROOM | 04 to 06 | 67 | $400,000 | $555 | 59y 09m |
| Mar 2024 | 3 ROOM | 01 to 03 | 67 | $380,000 | $527 | 59y 10m |
| Oct 2023 | 4 ROOM | 07 to 09 | 92 | $579,000 | $585 | 60y 03m |
| Aug 2023 | 3 ROOM | 07 to 09 | 67 | $392,000 | $544 | 60y 04m |
| Apr 2023 | 3 ROOM | 07 to 09 | 67 | $385,000 | $534 | 60y 08m |
| Dec 2022 | 3 ROOM | 01 to 03 | 67 | $380,000 | $527 | 61y 01m |
| Nov 2022 | 4 ROOM | 07 to 09 | 94 | $590,000 | $583 | 61y 02m |
| Aug 2022 | 4 ROOM | 07 to 09 | 94 | $520,888 | $515 | 61y 05m |
| Jan 2022 | 4 ROOM | 04 to 06 | 99 | $470,000 | $441 | 62y |
| Dec 2021 | 3 ROOM | 07 to 09 | 67 | $355,000 | $492 | 62y 01m |
| Oct 2021 | 3 ROOM | 04 to 06 | 67 | $333,000 | $462 | 62y 03m |
| Aug 2021 | 3 ROOM | 07 to 09 | 67 | $365,000 | $506 | 62y 05m |
| Aug 2021 | 4 ROOM | 04 to 06 | 92 | $425,000 | $429 | 62y 05m |
| Mar 2021 | 4 ROOM | 01 to 03 | 96 | $404,500 | $391 | 62y 09m |
| Jan 2021 | 3 ROOM | 07 to 09 | 67 | $350,000 | $485 | 63y |
| Oct 2020 | 3 ROOM | 04 to 06 | 67 | $290,000 | $402 | 63y 02m |
| Aug 2020 | 3 ROOM | 07 to 09 | 67 | $330,000 | $458 | 63y 04m |
| Aug 2020 | 3 ROOM | 01 to 03 | 71 | $280,000 | $366 | 63y 04m |
| Jul 2020 | 3 ROOM | 07 to 09 | 67 | $283,500 | $393 | 63y 06m |
| Jun 2020 | 3 ROOM | 01 to 03 | 72 | $283,000 | $365 | 63y 08m |
Who lives in Serangoon
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.
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 1984 · same generation
3-room median $35k below this block · 7 vs 8 sales
3-room median $31k below this block · 4 vs 8 sales
3-room median $23k below this block · 6 vs 8 sales
built 2011 · 27 more lease years than this block
3-room median within $5k of this block
Condos nearby
The private premium, measured: the nearest condo trades at 2.0×this block’s PSF.
Grounded in this block’s own resale record, trend and lease - ask away.