Blk 421 Clementi Ave 1
10 sales in the last 12 months · ~3.3% of 300 units
10
50 recorded since May 2022
$978K
4 Room · 9 sales · last 12 months
$953
4 Room · 9 sales · last 12 months
$880K – $1.04M
4 Room · 9 sales · last 12 months
$980,000
Oct 2026 · 4 Room · #28-30
What it costs to own here
86 years left on the 99, from 2013.
Monthly instalment
$3,672
at $978K, the 4 room median, over 25 years at 3.5%
Renting the same here
$1,325
median asking rent, 2 listings at this block
Earliest resale: 2017 (estimated), five years after the block was completed in 2012.
Indicative. Excludes stamp duty, legal fees and CPF accrued interest. Confirm with HDB and your banker. Rules as at 2026-09-17.
Market Insights
Supply
2 units
2 agent listings
Asking vs sold
+20.7%
$1.18M ask · $978K sold
4 Room · 9 sold, 1 asking
Price trend
-8.3%
6 months, 6 sales
12 months: +10.5% (10)
Turnover
3.3%
10 of 300 units, 12 months
High vs low floor: 4 Room flats above the 10th storey sell 16.3% above those on the 6th and lower at this block ($898 vs $772 psf, 28 and 6 sales).
Resale Price Trend
One flat type at a time, so a single larger sale cannot look like a price jump
Median price per month, 4 Room only, 37 sales
Recent Resale Transactions
50 recorded · 10 in the last 12 months • Page 1 of 3
| Date | Flat Type | Storey | Area | Price | PSF |
|---|---|---|---|---|---|
| 2026-10 | 4 ROOM | 28 TO 30 | 980 sqft | $980,000 | $1,000 |
| 2026-09 | 4 ROOM | 22 TO 24 | 1,033 sqft | $996,888 | $965 |
| 2026-08 | 4 ROOM | 07 TO 09 | 990 sqft | $880,000 | $889 |
| 2026-06 | 4 ROOM | 22 TO 24 | 1,033 sqft | $970,000 | $939 |
| 2026-05 | 3 ROOM | 19 TO 21 | 786 sqft | $650,000 | $827 |
| 2026-04 | 4 ROOM | 25 TO 27 | 1,076 sqft | $975,888 | $907 |
| 2026-03 | 4 ROOM | 19 TO 21 | 1,033 sqft | $985,000 | $953 |
| 2026-01 | 4 ROOM | 31 TO 33 | 1,033 sqft | $1,038,000 | $1,005 |
| 2025-11 | 4 ROOM | 10 TO 12 | 1,076 sqft | $965,000 | $897 |
| 2025-11 | 4 ROOM | 22 TO 24 | 980 sqft | $978,000 | $998 |
| 2025-08 | 4 ROOM | 10 TO 12 | 980 sqft | $942,888 | $963 |
| 2025-08 | 4 ROOM | 22 TO 24 | 1,076 sqft | $970,000 | $901 |
| 2025-05 | 4 ROOM | 25 TO 27 | 990 sqft | $965,000 | $974 |
| 2025-04 | 4 ROOM | 07 TO 09 | 1,076 sqft | $952,488 | $885 |
| 2025-03 | 3 ROOM | 13 TO 15 | 797 sqft | $728,000 | $914 |
| 2025-02 | 4 ROOM | 04 TO 06 | 980 sqft | $850,000 | $868 |
| 2025-02 | 4 ROOM | 19 TO 21 | 990 sqft | $922,000 | $931 |
| 2025-02 | 4 ROOM | 04 TO 06 | 980 sqft | $855,000 | $873 |
| 2025-01 | 3 ROOM | 25 TO 27 | 786 sqft | $720,000 | $916 |
| 2024-11 | 3 ROOM | 01 TO 03 | 786 sqft | $616,888 | $785 |
For Sale
2 units available · 2 agent listings
3 Room · 785 sqft
1 agent
$690,000
4 Room · 1,076 sqft
1 agent
$1,180,000
For Rent
2 units available · 2 agent listings
4 Room · 1,033 sqft
1 agent
$1,150/mo
3 Room · 120 sqft
1 agent
$1,500/mo
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Median price by flat type
Last 12 months where there were sales, otherwise everything recorded
4 Room
9 sales, 12 months · 224 units
3 Room
1 sale, 12 months · 76 units
Data sourced from data.gov.sg HDB Resale Flat Prices. Updated regularly.