421 Clementi Avenue 1
In Clementi · Singapore 120421
Median price per sqftlast 12 months
$468$521$580$617$873$1,232
Too few sales in 3 months to colour each block.
- 421 Clementi Avenue 1
- 1km radius
- MRT/LRT, in its line colour
- School
- Supermarket
- Hawker centre
- No sale in that time
132 HDB blocks · tap one for its page
Supermarkets © OpenStreetMap contributorsAbout this block
- Completed
- 2012
- 14 years ago
- Lease left
- 86 years
- 99-year lease from 2013
- Height
- 40 storeys
- Flats
- 300
- 76 3-room · 224 4-room
- Postal code
- 120421
Statistics
Price
- Average
- $938,444
- Median
- $938,444
- Median per sqft
- $927 psf
- Highest sale
- $996,888
- 96 sqm 4 Room · Sept 2026
- Lowest sale
- $880,000
- 92 sqm 4 Room · Aug 2026
Compared to
- Vs street average
- -1%
- Vs town average
- +29%
- Vs citywide average
- +39%
Activity
- Transactions
- 2
- Avg per month
- 0.7
By flat type
- 4 Room
- $938,444
Nearby
What's a flat here worth?
An estimate from recent sales of the same flat type in the block, along the street and within 500m.
Likely sale price
$921K – $980K$921,000 – $980,000
Midpoint $935,000 · about $905 psf for 96 sqm
Where comparable sales landed, at your flat's size
Good confidence · 22 sales
8 same block · 14 same street · 4-room flats, past 12 months
Show the sales it's based on
| Where | Month | Block | Storey | Area (sqm) | Lease left | Price | Per sqft |
|---|---|---|---|---|---|---|---|
| Same block | Sept 2026 | 421 Clementi Avenue 1 | 22 to 24 | 96 | 86 years | $996,888 | $965 psf |
| Same block | Aug 2026 | 421 Clementi Avenue 1 | 07 to 09 | 92 | 86 years | $880,000 | $889 psf |
| Same block | Jun 2026 | 421 Clementi Avenue 1 | 22 to 24 | 96 | 86 years | $970,000 | $939 psf |
| Same block | Apr 2026 | 421 Clementi Avenue 1 | 25 to 27 | 100 | 86 years | $975,888 | $907 psf |
| Same block | Mar 2026 | 421 Clementi Avenue 1 | 19 to 21 | 96 | 86 years | $985,000 | $953 psf |
| Same block | Jan 2026 | 421 Clementi Avenue 1 | 31 to 33 | 96 | 86 years | $1,038,000 | $1,005 psf |
| Same block | Nov 2025 | 421 Clementi Avenue 1 | 22 to 24 | 91 | 87 years | $978,000 | $998 psf |
| Same block | Nov 2025 | 421 Clementi Avenue 1 | 10 to 12 | 100 | 87 years | $965,000 | $897 psf |
| Same street | Oct 2026 | 417 Clementi Avenue 1 | 04 to 06 | 96 | 86 years | $895,000 | $866 psf |
| Same street | Aug 2026 | 416 Clementi Avenue 1 | 25 to 27 | 99 | 86 years | $960,000 | $901 psf |
| Same street | Aug 2026 | 424 Clementi Avenue 1 | 10 to 12 | 100 | 86 years | $920,000 | $855 psf |
| Same street | Aug 2026 | 420 Clementi Avenue 1 | 07 to 09 | 96 | 86 years | $928,000 | $898 psf |
| Same street | Jul 2026 | 420 Clementi Avenue 1 | 10 to 12 | 92 | 86 years | $927,000 | $936 psf |
| Same street | Jul 2026 | 423 Clementi Avenue 1 | 10 to 12 | 99 | 86 years | $962,000 | $903 psf |
| Same street | Jun 2026 | 420 Clementi Avenue 1 | 22 to 24 | 96 | 86 years | $980,000 | $948 psf |
And 7 more further away or earlier.
The middle half of these sales' price per sqft, at your flat's size: blocks of a similar age come first, and sales in your own block count most. An estimate from public sale records, not a valuation: condition, renovation and the exact floor all move the real price.
Use $935,000 in the Sell calculator →Price trend
Median of 9 months, Mar 2018 to Feb 2025 · +27% over the period
View as table
| Month | Median | Per sqft | Sales |
|---|---|---|---|
| Mar 2018 | $675,000 | $692 psf | 3 |
| Apr 2018 | $692,944 | $689 psf | 4 |
| Jul 2018 | $670,000 | $622 psf | 3 |
| Aug 2020 | $745,000 | $723 psf | 3 |
| Sep 2020 | $720,000 | $669 psf | 3 |
| Mar 2022 | $590,000 | $744 psf | 3 |
| Mar 2023 | $868,888 | $887 psf | 3 |
| Oct 2023 | $705,500 | $767 psf | 4 |
| Feb 2025 | $855,000 | $873 psf | 3 |
Fun facts
Records, rankings and quirks from every sale recorded here.
Records
9 factsThe biggest, smallest, highest and priciest sales on record.
Largest unit sold
100 sqm
The largest unit sold here was a 100 sqm 4 Room, for $840,000 in Dec 2022.
Smallest unit sold
73 sqm
The smallest unit sold here was a 73 sqm 3 Room, for $585,000 in Mar 2022.
Longest lease left
91 years
The longest remaining lease sold here was 91 years, on a 92 sqm 4 Room.
Shortest lease left
86 years
The shortest remaining lease sold here was 86 years, on a 73 sqm 3 Room.
Highest floor sold
Storeys 37 to 39
The highest-floor sale here was on storeys 37 to 39, a 91 sqm 4 Room.
Lowest floor sold
Storeys 01 to 03
The lowest-floor sale here was on storeys 01 to 03, a 73 sqm 3 Room.
$1M sale in Clementi
237th
This sale ($1,038,000) was the 237th time a flat in Clementi crossed the $1,000,000 mark.
Priciest 4 room ever
$1,588,000
The most expensive 4 room ever sold citywide went for $1,588,000 on Cantonment Rd in Central Area.
Joint tallest on the street
40 storeys
At 40 storeys, this is the joint tallest block on Clementi Avenue 1, level with 6 others.
Percentiles
6 factsWhere sales here rank against the rest of Singapore.
Price vs 4 room flats citywide
98th percentile
A 96 sqm 4 room sale here ranks in the 98th percentile among all 4 room flats sold citywide over the same period.
Price vs similar-sized flats
93rd percentile
For its 96 sqm, this sale is in the 93rd percentile among similarly-sized flats sold across Singapore over the same period.
Price vs 4 room flats in Clementi
93rd percentile
Within Clementi alone, that sale is in the 93rd percentile for a 4 room.
Remaining lease, citywide
70th percentile
This flat's remaining lease (86 years) ranks in the 70th percentile among all flats sold citywide over the same period.
Floor height, citywide
99th percentile
This flat's floor (storeys 31 to 33) ranks in the 99th percentile among all flats sold citywide over the same period.
Age among Clementi's blocks
13th percentile
Completed in 2012, this block is newer than 86% of HDB blocks in Clementi.
Comparisons
4 factsHow prices stack up against the town and the city.
vs the Clementi average
+27%
Prices here run 27% above the Clementi average.
vs the citywide average
+34%
Citywide, that's 34% above the national average.
Towns by average price
#11 of 26
Clementi ranks 11th out of 26 towns by average resale price.
Towns by 2-year price growth
#5 of 26
Clementi ranks 5th out of 26 towns for price growth over the past 2 years (+16%).
Nearby
1 factHow far it is to trains, schools and the city centre.
To Raffles Place
9.7km
This location is about 9.7km from the city center (Raffles Place).
Trends
5 factsWhich way prices and sales are heading.
Price vs a year ago
-11%
Prices here are down 11% compared to a year ago.
Busiest month: Oct 2023
4 sales
The busiest month here was Oct 2023, with 4 transactions.
Sales volume vs last quarter
0%
Transaction volume here is unchanged versus the previous quarter.
Since the last resale
1 mo
It's been about 1 month since the last resale here.
Busiest month: Apr 2018
4 sales
The busiest month ever recorded here was Apr 2018, with 4 sales; the quietest active month saw just 1, in Aug 2016.
Transactions
| Sept 2026 | Clementi | 421 | Clementi Avenue 1 | 4 Room | Model A | 22 to 24 | 96 | 86 years | $996,888 | $965 psf |
| Aug 2026 | Clementi | 421 | Clementi Avenue 1 | 4 Room | Model A | 07 to 09 | 92 | 86 years | $880,000 | $889 psf |
| Jun 2026 | Clementi | 421 | Clementi Avenue 1 | 4 Room | Model A | 22 to 24 | 96 | 86 years | $970,000 | $939 psf |
| May 2026 | Clementi | 421 | Clementi Avenue 1 | 3 Room | Model A | 19 to 21 | 73 | 86 years | $650,000 | $827 psf |
| Apr 2026 | Clementi | 421 | Clementi Avenue 1 | 4 Room | Model A | 25 to 27 | 100 | 86 years | $975,888 | $907 psf |
| Mar 2026 | Clementi | 421 | Clementi Avenue 1 | 4 Room | Model A | 19 to 21 | 96 | 86 years | $985,000 | $953 psf |
| Jan 2026 | Clementi | 421 | Clementi Avenue 1 | 4 Room | Model A | 31 to 33 | 96 | 86 years | $1,038,000 | $1,005 psf |
| Nov 2025 | Clementi | 421 | Clementi Avenue 1 | 4 Room | Model A | 10 to 12 | 100 | 87 years | $965,000 | $897 psf |
| Nov 2025 | Clementi | 421 | Clementi Avenue 1 | 4 Room | Model A | 22 to 24 | 91 | 87 years | $978,000 | $998 psf |
| Aug 2025 | Clementi | 421 | Clementi Avenue 1 | 4 Room | Model A | 10 to 12 | 91 | 87 years | $942,888 | $963 psf |
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