Blk 423 Clementi Avenue 1 — HDB resale prices
HDB resale prices, Clementi · 2-Room, 3-Room, 4-Room · built 2011
median resale price, last 24 months
7 sales in that window · as of Sep 2026
How it compares
Blk 423 Clementi Avenue 1 is an HDB block in Clementi (completed in 2011, 28 storeys, 204 units). As of Sep 2026, its median resale price over the last 24 months is $710,000, about 12% above the Clementi median, from 7 sales. 53 resale transactions have been recorded here since 1990.
Price by year
At a glance
Unit mix (sold): 2-room ×104 · 3-room ×50 · 4-room ×50
Prices by flat type — last 24 months (as of Sep 2026)
Median monthly rent at this block: $3,000/mo (7 rental contracts, last 12 months).
Estimated gross rental yield: ~5.1% (Clementi average: ~6.1%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 15% of Clementi blocks with recent sales.
What the price model says
For a typical 2-room flat here, our price model estimates $472,555–$528,302 (central estimate $500,428). Recent sales — median $425,811 — sit below that range. The model explains 94% of resale prices with a typical error of ±6%. Indicative only — not an official valuation.
Median resale price by year
| 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 | $710,000 | $710,000 | 3 |
Records
| Record sale | $979,000 (4-Room, 2025-02) |
|---|---|
| First recorded sale | $570,000 (2016-12) |
| Busiest year | 2018 · 8 sales |
| 10-year change (real) | +4% (+0.4%/yr, 2016→2026) |
| Total transacted | $29.7M across 53 sales |
Recent resale transactions
| Month | Flat type | Storey | Area | Price |
|---|---|---|---|---|
| 2026-07 | 4-Room | 10–12 | 99 m² | $962,000 |
| 2026-07 | 3-Room | 04–06 | 75 m² | $710,000 |
| 2026-03 | 2-Room | 04–06 | 49 m² | $458,000 |
| 2025-07 | 2-Room | 25–27 | 49 m² | $475,000 |
| 2025-07 | 2-Room | 07–09 | 49 m² | $423,000 |
| 2025-02 | 4-Room | 16–18 | 100 m² | $979,000 |
| 2025-01 | 4-Room | 10–12 | 99 m² | $931,888 |
| 2024-09 | 3-Room | 07–09 | 70 m² | $680,000 |
| 2024-07 | 2-Room | 25–27 | 49 m² | $422,000 |
| 2024-06 | 2-Room | 22–24 | 49 m² | $475,000 |
| 2023-12 | 3-Room | 04–06 | 70 m² | $575,000 |
| 2023-11 | 3-Room | 13–15 | 70 m² | $615,000 |
| 2023-01 | 4-Room | 04–06 | 99 m² | $825,000 |
| 2023-01 | 4-Room | 07–09 | 100 m² | $805,000 |
| 2022-12 | 2-Room | 10–12 | 49 m² | $380,000 |
| 2022-08 | 2-Room | 22–24 | 50 m² | $398,000 |
| 2022-08 | 2-Room | 19–21 | 50 m² | $391,888 |
| 2022-05 | 4-Room | 22–24 | 100 m² | $812,000 |
| 2022-01 | 3-Room | 13–15 | 75 m² | $560,000 |
| 2022-01 | 2-Room | 04–06 | 49 m² | $346,000 |
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Quick answers
How much does a flat at Blk 423 Clementi Avenue 1 cost?
The median resale price over the last 24 months is $710,000 (7 sales, as of Sep 2026). See the by-type table above for 3-room vs 4-room medians.
Is Blk 423 Clementi Avenue 1 fairly priced?
For a typical 2-room flat here, our price model estimates $472,555–$528,302 (central estimate $500,428). Recent sales — median $425,811 — sit below that range.
What is the rent at Blk 423 Clementi Avenue 1?
The median monthly rent is $3,000/mo over the last 12 months (7 contracts).
How old is Blk 423 Clementi Avenue 1?
The block was completed in 2011 and its 99-year lease runs from 2013.