Blk 644 Yishun St 61
Completed 1986 · 13 storeys · 144 flats · 60 years 11 months remaining · 25 resale transactions on record · median household income in Yishun: $7,500/mo (lowest quartile island-wide)
13 storeys · completed 1986
What the record shows
A 5-room here sold for $680,000 in Jul 2026. The same flat type in this block averaged $488,250 in 2020 - a gain of $191,750 - about $88 a day while the owner slept.
In this block, 5-room flats from floor 9 up have sold for a median of $670,000 - $100,000 more than floors 4 and below, same flat type, same block.
This block crosses 60 years remaining in 2027 - the line where CPF usage rules begin tightening for buyers. In Yishun over the last two years, flats below that line sold at a median 7% below their younger neighbours' PSF (1,008 sales).
Across Yishun, roughly 4,444 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 | Yishun median | Gross yield | Rented |
|---|---|---|---|---|---|
| 4-ROOM | $3,000/mo | $2,550–$3,250 | $3,100/mo | - | 5 |
| 5-ROOM | $3,500/mo | $2,850–$3,500 | $3,400/mo | - | 3 |
Price trend
median PSF by year · ━ this block · ╌ Yishun · gaps = years with no sales here
The height gradient
every sale in 5 years, plotted by starting floor · 13 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 |
|---|---|---|---|---|---|---|
| Jul 2026 | 5 ROOM | 10 to 12 | 123 | $680,000 | $514 | 60y 11m |
| Mar 2026 | 5 ROOM | 13 to 15 | 123 | $670,000 | $506 | 61y 04m |
| Dec 2025 | 5 ROOM | 04 to 06 | 121 | $685,000 | $526 | 61y 07m |
| Oct 2024 | 5 ROOM | 07 to 09 | 123 | $728,000 | $550 | 62y 09m |
| Aug 2024 | 5 ROOM | 07 to 09 | 121 | $650,000 | $499 | 62y 11m |
| Jan 2024 | 4 ROOM | 07 to 09 | 83 | $460,000 | $515 | 63y 06m |
| Nov 2023 | 5 ROOM | 07 to 09 | 121 | $615,000 | $472 | 63y 07m |
| Jul 2023 | 4 ROOM | 10 to 12 | 83 | $428,000 | $479 | 64y |
| Apr 2023 | 5 ROOM | 07 to 09 | 123 | $628,888 | $475 | 64y 03m |
| Oct 2022 | 5 ROOM | 10 to 12 | 123 | $600,000 | $453 | 64y 09m |
| Apr 2022 | 5 ROOM | 04 to 06 | 121 | $568,000 | $436 | 65y 03m |
| Apr 2022 | 4 ROOM | 07 to 09 | 83 | $392,000 | $439 | 65y 03m |
| Jan 2022 | 5 ROOM | 04 to 06 | 121 | $570,000 | $438 | 65y 06m |
| Dec 2020 | 5 ROOM | 07 to 09 | 123 | $420,000 | $317 | 66y 07m |
| Jul 2020 | 5 ROOM | 01 to 03 | 121 | $395,000 | $303 | 66y 11m |
| Jun 2020 | 5 ROOM | 10 to 12 | 121 | $420,000 | $322 | 67y 02m |
| Mar 2020 | 5 ROOM | 01 to 03 | 121 | $395,000 | $303 | 67y 03m |
| Oct 2019 | 5 ROOM | 04 to 06 | 123 | $388,888 | $294 | 67y 08m |
| Oct 2019 | 5 ROOM | 10 to 12 | 121 | $425,000 | $326 | 67y 08m |
| Jul 2019 | 5 ROOM | 13 to 15 | 121 | $418,000 | $321 | 67y 11m |
| Jun 2019 | 4 ROOM | 04 to 06 | 83 | $277,000 | $310 | 68y 01m |
| Feb 2019 | 5 ROOM | 04 to 06 | 121 | $371,000 | $285 | 68y 04m |
| Jul 2018 | 4 ROOM | 04 to 06 | 83 | $290,000 | $325 | 69y |
| May 2018 | 4 ROOM | 01 to 03 | 83 | $290,000 | $325 | 69y 01m |
| Oct 2017 | 4 ROOM | 04 to 06 | 83 | $290,000 | $325 | 69y 08m |
Who lives in Yishun
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.
Condos nearby
The private premium, measured: the nearest condo trades at 2.7×this block’s PSF.
Grounded in this block’s own resale record, trend and lease - ask away.