The block
- Completed
- 2012
- Lease
- From 2013, ends 2112. About 85 years left
- Storeys
- 40
- Flats
- 300: 76 3-room, 224 4-room
- Postal code
- Singapore 120421
- Nearest MRT
- Clementi MRT, about 10 min walk (640 m)
- Town
- Clementi
Resale prices at Blk 421 Clementi Avenue 1
| Flat type | 2023 | 2024 | 2025 | 2026 | Clementi median |
|---|---|---|---|---|---|
| 3-room | S$603,000 | S$616,888 | S$724,000 | S$650,000 | S$434,000 |
| 4-room | S$824,000 | S$901,500 | S$952,488 | S$980,444 | S$821,500 |
Median price by year of registration.
What is my flat at Blk 421 Clementi Avenue 1 worth?
Pick your flat type and floor for an instant range based on this block's own resales.
A guide only. Condition, facing, corner units and renovation can move the price 5 to 10% either way.
Latest sales
| Month | Type | Storey | Size | Price |
|---|---|---|---|---|
| Sept 2026 | 4-room Model A | 22 to 24 | 96 sqm 1,033 sqft | S$996,888 S$965 psf |
| Aug 2026 | 4-room Model A | 07 to 09 | 92 sqm 990 sqft | S$880,000 S$889 psf |
| Jun 2026 | 4-room Model A | 22 to 24 | 96 sqm 1,033 sqft | S$970,000 S$939 psf |
| May 2026 | 3-room Model A | 19 to 21 | 73 sqm 786 sqft | S$650,000 S$827 psf |
| Apr 2026 | 4-room Model A | 25 to 27 | 100 sqm 1,076 sqft | S$975,888 S$907 psf |
| Mar 2026 | 4-room Model A | 19 to 21 | 96 sqm 1,033 sqft | S$985,000 S$953 psf |
| Jan 2026 | 4-room Model A | 31 to 33 | 96 sqm 1,033 sqft | S$1,038,000 S$1,005 psf |
| Nov 2025 | 4-room Model A | 10 to 12 | 100 sqm 1,076 sqft | S$965,000 S$897 psf |
| Nov 2025 | 4-room Model A | 22 to 24 | 91 sqm 980 sqft | S$978,000 S$998 psf |
| Aug 2025 | 4-room Model A | 10 to 12 | 91 sqm 980 sqft | S$942,888 S$963 psf |
| Aug 2025 | 4-room Model A | 22 to 24 | 100 sqm 1,076 sqft | S$970,000 S$901 psf |
| May 2025 | 4-room Model A | 25 to 27 | 92 sqm 990 sqft | S$965,000 S$974 psf |
| Apr 2025 | 4-room Model A | 07 to 09 | 100 sqm 1,076 sqft | S$952,488 S$885 psf |
| Mar 2025 | 3-room Model A | 13 to 15 | 74 sqm 797 sqft | S$728,000 S$914 psf |
| Feb 2025 | 4-room Model A | 04 to 06 | 91 sqm 980 sqft | S$850,000 S$868 psf |
Showing the latest 15 of 31 sales since Oct 2023. See them all in the price checker.
Rent at Blk 421 Clementi Avenue 1
At these figures a 4-room flat here earns a gross yield of about 5.2% before property tax and other costs.
Whole-flat rentals approved by HDB since Oct 2024. Rooms let out separately aren't included.
Flat layouts at Blk 421 Clementi Avenue 1
HDB records the flat model of every resale. These are the layouts sold here, with the typical size.
| Flat type | Model | Typical size | Sales |
|---|---|---|---|
| 3-room | Model A | 73 sqm (786 sqft) | 8 |
| 4-room | Model A | 96 sqm (1,033 sqft) | 23 |
Model names come from HDB. "Improved", "New Generation" and "Model A" flats of the same type can differ by 10 sqm or more, so compare sizes, not just room counts.
Living at Blk 421 Clementi Avenue 1
MRT
- Clementi MRT640 m, about 10 min walk
- Dover MRT1.1 km, about 18 min walk
Hawker centres
- Clementi Ave 2 Market/Cooked Food Centre630 m, 18 food stalls
- Clementi Ave 3 Blk 448640 m, 51 food stalls
- Clementi West Street 2 Blk 726760 m, 60 food stalls
Car park
| Car park | Type | Free parking | Night parking | Gantry |
|---|---|---|---|---|
| C3ML 150 m away | Surface | No free parking | No | - |
| C3M 200 m away | Multi-storey 2 decks | Free on Sundays and public holidays, 7am to 10.30pm | Yes | 2.15 m |
From HDB's car park list. The nearest HDB car parks to the block.
1-minute quizzes for owners at Blk 421 Clementi Avenue 1
What is your flat at Blk 421 Clementi Avenue 1 worth?
Send us your floor and flat type. We'll reply with a valuation range based on the latest sales here and at nearby blocks, and what a sale would leave you after your loan and CPF refund.
Common questions
How much is a 4-room flat at Blk 421 Clementi Avenue 1?
4-room flats at Blk 421 Clementi Avenue 1 sold for a median S$976,944 in the last 12 months, or about S$946 per square foot. The range was S$880,000 to S$1,038,000. Floor level, condition and the remaining lease explain most of the gap.
How many years are left on the lease at Blk 421 Clementi Avenue 1?
The lease started in 2013 and runs for 99 years to 2112, so about 85 years are left. Banks and CPF limit how much a buyer can borrow and use once fewer than 60 years remain, which affects who can buy.
How much rent can I get at Blk 421 Clementi Avenue 1?
HDB approved 5 4-room rentals here in the last 12 months, at a median S$4,200 a month (S$3,700 to S$5,000). See more in the HDB rental rates checker.
What is the postal code of Blk 421 Clementi Avenue 1?
The postal code of Blk 421 Clementi Avenue 1 is Singapore 120421.
What is the nearest MRT station to Blk 421 Clementi Avenue 1?
Clementi MRT station is about 640 m away, roughly 10 minutes on foot. Dover MRT is the next closest, about 1.1 km away.
Where do residents of Blk 421 Clementi Avenue 1 park?
Surface car park C3ML, about 150 m away: No free parking. Multi-storey car park C3M, about 200 m away: Free on Sundays and public holidays, 7am to 10.30pm, night parking available, gantry height 2.15 m.
What is my flat at Blk 421 Clementi Avenue 1 worth?
Recent sales at the block are the best guide, adjusted for your floor, facing and condition. Send us your unit and we'll reply with a valuation range on WhatsApp.
Other blocks on Clementi Avenue 1
Blocks nearby
- Blk 411 Commonwealth Avenue West230 m · 4-room S$636,000
- Blk 460 Clementi Avenue 3280 m · 4-room S$781,000
- Blk 410 Commonwealth Avenue West280 m · 4-room S$660,000
- Blk 459 Clementi Avenue 3290 m · 5-room S$1,120,000
- Blk 412 Commonwealth Avenue West310 m · 4-room S$643,888
- Blk 461 Clementi Avenue 3320 m · 5-room S$960,000
- Blk 458 Clementi Avenue 3320 m · 5-room S$980,000
- Blk 457 Clementi Avenue 3330 m · 4-room S$849,888
All HDB blocks in Clementi · All towns
Source: HDB resale flat prices, renting out of flats and HDB property information, from data.gov.sg. Resales from Oct 2023 to Oct 2026. Prices are what buyers paid; your flat's value depends on its floor, facing, condition and lease.