Blk 309 Clementi Ave 4
Completed 1978 · 12 storeys · 197 flats · 53 years 03 months remaining · 46 resale transactions on record · median household income in Clementi: $10,500/mo
12 storeys · completed 1978
What the record shows
A 3-room here sold for $440,000 in Nov 2025. The same flat type in this block averaged $371,736 in 2020 - a gain of $68,264 - about $31 a day while the owner slept.
In this block, 3-room flats from floor 8 up have sold for a median of $380,888 - $2,612 less than floors 4 and below, same flat type, same block.
This block crossed 60 years remaining in 2019 - the line where CPF usage rules tighten for buyers. In Clementi over the last two years, flats below that line sold at a median 42% below their younger neighbours' PSF (741 sales).
Across Clementi, roughly 2,283 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 | Clementi median | Gross yield | Rented |
|---|---|---|---|---|---|
| 3-ROOM | $3,150/mo | $2,800–$3,400 | $3,000/mo | - | 12 |
| 4-ROOM | $3,975/mo | $3,650–$4,300 | $3,900/mo | - | 2 |
Price trend
median PSF by year · ━ this block · ╌ Clementi · gaps = years with no sales here
The height gradient
every sale in 5 years, plotted by starting floor · 28 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 |
|---|---|---|---|---|---|---|
| Nov 2025 | 3 ROOM | 01 to 03 | 67 | $440,000 | $610 | 53y 03m |
| Sept 2025 | 4 ROOM | 04 to 06 | 92 | $628,888 | $635 | 53y 04m |
| Sept 2025 | 3 ROOM | 01 to 03 | 67 | $408,000 | $566 | 53y 04m |
| Jul 2025 | 3 ROOM | 07 to 09 | 67 | $418,000 | $580 | 53y 07m |
| May 2025 | 3 ROOM | 07 to 09 | 67 | $455,000 | $631 | 53y 09m |
| May 2025 | 3 ROOM | 10 to 12 | 67 | $410,000 | $569 | 53y 09m |
| Apr 2025 | 3 ROOM | 01 to 03 | 67 | $410,000 | $569 | 53y 10m |
| Mar 2025 | 4 ROOM | 01 to 03 | 92 | $570,000 | $576 | 53y 10m |
| Mar 2025 | 4 ROOM | 07 to 09 | 92 | $630,000 | $636 | 53y 11m |
| Nov 2024 | 3 ROOM | 04 to 06 | 67 | $438,000 | $607 | 54y 03m |
| Aug 2024 | 3 ROOM | 04 to 06 | 67 | $383,500 | $532 | 54y 06m |
| Jul 2024 | 3 ROOM | 01 to 03 | 67 | $375,000 | $520 | 54y 07m |
| Jul 2024 | 3 ROOM | 04 to 06 | 67 | $380,000 | $527 | 54y 07m |
| May 2024 | 3 ROOM | 07 to 09 | 67 | $380,000 | $527 | 54y 09m |
| May 2024 | 3 ROOM | 10 to 12 | 67 | $380,888 | $528 | 54y 09m |
| Apr 2024 | 3 ROOM | 04 to 06 | 67 | $382,000 | $530 | 54y 10m |
| Apr 2024 | 3 ROOM | 04 to 06 | 67 | $363,000 | $503 | 54y 10m |
| Apr 2024 | 3 ROOM | 10 to 12 | 67 | $385,000 | $534 | 54y 10m |
| Oct 2023 | 3 ROOM | 01 to 03 | 67 | $380,500 | $528 | 55y 04m |
| May 2023 | 3 ROOM | 01 to 03 | 67 | $370,000 | $513 | 55y 08m |
| Nov 2022 | 3 ROOM | 01 to 03 | 67 | $360,000 | $499 | 56y 03m |
| Sept 2022 | 3 ROOM | 04 to 06 | 82 | $438,000 | $496 | 56y 05m |
| Jul 2022 | 3 ROOM | 04 to 06 | 82 | $428,000 | $485 | 56y 07m |
| Jun 2022 | 3 ROOM | 01 to 03 | 82 | $406,000 | $460 | 56y 08m |
| Nov 2021 | 3 ROOM | 07 to 09 | 67 | $378,000 | $524 | 57y 03m |
| Nov 2021 | 3 ROOM | 07 to 09 | 67 | $373,999 | $519 | 57y 03m |
| Oct 2021 | 3 ROOM | 10 to 12 | 67 | $370,888 | $514 | 57y 04m |
| Oct 2021 | 3 ROOM | 10 to 12 | 67 | $360,000 | $499 | 57y 04m |
| May 2021 | 3 ROOM | 10 to 12 | 82 | $395,000 | $448 | 57y 09m |
| Jan 2021 | 3 ROOM | 07 to 09 | 82 | $375,000 | $425 | 58y 01m |
Who lives in Clementi
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.
3-room median $16k above this block · 5 vs 10 sales
3-room median $50k above this block · 4 vs 10 sales
3-room median $14k above this block · 4 vs 10 sales
3-room median $23k above this block · 7 vs 10 sales
3-room median $280k above this block · 6 vs 10 sales
3-room median $18k above this block · 8 vs 10 sales
Condos nearby
The private premium, measured: the nearest condo trades at 1.9×this block’s PSF.
Grounded in this block’s own resale record, trend and lease - ask away.