Blk 423 Clementi Ave 1 is an HDB block in Clementi (completed in 2011, 28 storeys, 204 units). As of Jul 2026, its median resale price over the last 24 months is $577,500, about 7% below the Clementi median, from 6 sales. 51 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Clementi |
|---|---|
| Completed | 2011 |
| Lease from | 2013 |
| Storeys | 28 |
| Dwelling units | 204 |
| Unit mix (sold) | 2-room ×104 · 3-room ×50 · 4-room ×50 |
| Recorded resales | 51 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 2-Room | $458,000 | $9,347/m² | 3 |
| 3-Room | $680,000 | $9,714/m² | 1 |
| 4-Room | $955,444 | $9,602/m² | 2 |
Median monthly rent at this block: $3,000/mo (8 rental contracts, last 12 months).
Estimated gross rental yield: ~6.2% (Clementi average: ~6.3%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 12% of Clementi blocks with recent sales.
For a typical 2-room flat here, our price model estimates $454,872–$508,840 (central estimate $481,856). Recent sales — median $425,128 — sit below that range. The model explains 94% of resale prices with a typical error of ±6%. Indicative only — not an official valuation.
| Year | Median (nominal) | Median (today's $) | Sales |
|---|---|---|---|
| 2016 | $570,000 | $679,875 | 1 |
| 2017 | $538,000 | $638,026 | 6 |
| 2018 | $496,500 | $586,240 | 8 |
| 2019 | $694,000 | $814,813 | 6 |
| 2020 | $436,500 | $513,371 | 6 |
| 2021 | $334,444 | $384,439 | 6 |
| 2022 | $394,944 | $427,756 | 6 |
| 2023 | $710,000 | $733,532 | 4 |
| 2024 | $475,000 | $479,289 | 3 |
| 2025 | $703,444 | $703,444 | 4 |
| 2026 | $458,000 | $458,000 | 1 |
| Record sale | $979,000 (4-Room, 2025-02) |
|---|---|
| First recorded sale | $570,000 (2016-12) |
| Busiest year | 2018 · 8 sales |
| 10-year change (real) | -33% (-3.9%/yr, 2016→2026) |
| Total transacted | $28.0M across 51 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2026-03 | 2-Room | 04 TO 06 | 49 | $458,000 |
| 2025-07 | 2-Room | 25 TO 27 | 49 | $475,000 |
| 2025-07 | 2-Room | 07 TO 09 | 49 | $423,000 |
| 2025-02 | 4-Room | 16 TO 18 | 100 | $979,000 |
| 2025-01 | 4-Room | 10 TO 12 | 99 | $931,888 |
| 2024-09 | 3-Room | 07 TO 09 | 70 | $680,000 |
| 2024-07 | 2-Room | 25 TO 27 | 49 | $422,000 |
| 2024-06 | 2-Room | 22 TO 24 | 49 | $475,000 |
| 2023-12 | 3-Room | 04 TO 06 | 70 | $575,000 |
| 2023-11 | 3-Room | 13 TO 15 | 70 | $615,000 |
| 2023-01 | 4-Room | 07 TO 09 | 100 | $805,000 |
| 2023-01 | 4-Room | 04 TO 06 | 99 | $825,000 |
| 2022-12 | 2-Room | 10 TO 12 | 49 | $380,000 |
| 2022-08 | 2-Room | 19 TO 21 | 50 | $391,888 |
| 2022-08 | 2-Room | 22 TO 24 | 50 | $398,000 |
| 2022-05 | 4-Room | 22 TO 24 | 100 | $812,000 |
| 2022-01 | 2-Room | 04 TO 06 | 49 | $346,000 |
| 2022-01 | 3-Room | 13 TO 15 | 75 | $560,000 |
| 2021-10 | 4-Room | 13 TO 15 | 100 | $760,000 |
| 2021-09 | 2-Room | 16 TO 18 | 49 | $340,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 425 | $1,050,000 | $9,500/m² |
| 2. Blk 416 | $1,045,000 | $9,778/m² |
| 3. Blk 421 | $952,488 | $9,838/m² |
| 4. Blk 420 | $935,000 | $9,800/m² |
| 5. Blk 417 | $921,500 | $9,448/m² |
| 6. Blk 424 | $830,094 | $9,514/m² |
| 7. Blk 418 | $691,500 | $9,300/m² |
| 8. Blk 423 | $577,500 | $9,553/m² |
The median resale price over the last 24 months is $577,500 (6 sales, as of Jul 2026). See the by-type table above for 3-room vs 4-room medians.
For a typical 2-room flat here, our price model estimates $454,872–$508,840 (central estimate $481,856). Recent sales — median $425,128 — sit below that range.
The median monthly rent is $3,000/mo over the last 12 months (8 contracts).
The block was completed in 2011 and its 99-year lease runs from 2013.