Blk 3B Upp Boon Keng Rd
Completed 2005 · 25 storeys · 142 flats · 79 years 03 months remaining · 32 resale transactions on record
25 storeys · completed 2005
What the record shows
A 4-room here sold for $920,000 in Jun 2026. The same flat type in this block averaged $718,200 in 2020 - a gain of $201,800 - about $92 a day while the owner slept.
In this block, 4-room flats from floor 17 up have sold for a median of $895,000 - $45,000 more than floors 8 and below, same flat type, same block.
This block crosses 60 years remaining in 2045 - the line where CPF usage rules begin tightening for buyers. In Kallang/Whampoa over the last two years, flats below that line sold at a median 37% below their younger neighbours' PSF (849 sales).
Across Kallang/Whampoa, roughly 411 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 | Kallang/Whampoa median | Gross yield | Rented |
|---|---|---|---|---|---|
| 4-ROOM | $4,000/mo | $3,000–$4,200 | $3,800/mo | - | 5 |
| 5-ROOM | $4,300/mo | $4,200–$4,500 | $4,088/mo | - | 4 |
Price trend
median PSF by year · ━ this block · ╌ Kallang/Whampoa · gaps = years with no sales here
The height gradient
every sale in 5 years, plotted by starting floor · 18 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 |
|---|---|---|---|---|---|---|
| Jun 2026 | 4 ROOM | 25 to 27 | 90 | $920,000 | $950 | 79y 03m |
| May 2026 | 4 ROOM | 07 to 09 | 90 | $850,000 | $877 | 79y 03m |
| Jan 2026 | 4 ROOM | 10 to 12 | 90 | $905,000 | $934 | 79y 09m |
| Sept 2025 | 4 ROOM | 04 to 06 | 90 | $830,000 | $857 | 80y |
| Sept 2025 | 4 ROOM | 16 to 18 | 90 | $942,000 | $972 | 79y 11m |
| Sept 2025 | 4 ROOM | 01 to 03 | 90 | $860,000 | $888 | 79y 11m |
| Aug 2025 | 5 ROOM | 07 to 09 | 110 | $1,120,000 | $946 | 80y 01m |
| Jun 2025 | 5 ROOM | 16 to 18 | 110 | $1,200,000 | $1,013 | 80y 03m |
| Feb 2025 | 4 ROOM | 13 to 15 | 90 | $880,000 | $908 | 80y 07m |
| Jan 2025 | 4 ROOM | 13 to 15 | 90 | $910,000 | $939 | 80y 08m |
| Dec 2024 | 4 ROOM | 16 to 18 | 90 | $938,000 | $968 | 80y 09m |
| May 2024 | 4 ROOM | 13 to 15 | 90 | $777,000 | $802 | 81y 04m |
| Mar 2024 | 4 ROOM | 22 to 24 | 90 | $895,000 | $924 | 81y 06m |
| Sept 2023 | 5 ROOM | 04 to 06 | 110 | $775,000 | $655 | 81y 11m |
| May 2023 | 4 ROOM | 16 to 18 | 90 | $820,000 | $846 | 82y 03m |
| Mar 2023 | 5 ROOM | 16 to 18 | 110 | $985,000 | $832 | 82y 06m |
| May 2022 | 4 ROOM | 10 to 12 | 90 | $680,000 | $702 | 83y 04m |
| Feb 2022 | 4 ROOM | 19 to 21 | 90 | $755,000 | $779 | 83y 07m |
| Jun 2021 | 4 ROOM | 16 to 18 | 90 | $668,000 | $690 | 84y 03m |
| May 2021 | 4 ROOM | 19 to 21 | 90 | $738,000 | $762 | 84y 04m |
| Aug 2020 | 4 ROOM | 19 to 21 | 90 | $750,000 | $774 | 85y |
| Aug 2020 | 5 ROOM | 01 to 03 | 110 | $750,000 | $633 | 85y |
| Jun 2020 | 4 ROOM | 07 to 09 | 90 | $580,000 | $599 | 85y 05m |
| Jun 2020 | 5 ROOM | 22 to 24 | 110 | $870,000 | $735 | 85y 04m |
| Dec 2019 | 5 ROOM | 13 to 15 | 110 | $842,000 | $711 | 85y 08m |
| Jun 2019 | 4 ROOM | 13 to 15 | 90 | $580,000 | $599 | 86y 03m |
| Jul 2018 | 5 ROOM | 22 to 24 | 110 | $834,000 | $704 | 87y 02m |
| May 2018 | 5 ROOM | 07 to 09 | 110 | $769,600 | $650 | 87y 03m |
| May 2018 | 4 ROOM | 13 to 15 | 90 | $700,000 | $723 | 87y 03m |
| Mar 2018 | 4 ROOM | 16 to 18 | 90 | $700,000 | $723 | 87y 05m |
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 2006 · same generation
4-room median $23k above this block · 3 vs 9 sales
4-room median $13k below this block · 6 vs 9 sales
4-room median $12k above this block · 4 vs 9 sales
built 2010 · same generation
built 2023 · 18 more lease years than this block
Condos nearby
Grounded in this block’s own resale record, trend and lease - ask away.