Blk 421 Clementi Ave 1
4-room flats here resold at a median S$919 psf over the last 24 months (14 resales), above the Clementi median of S$868 psf for 4-room flats (392 resales). Lease left here: 86 years; the typical 4-room resale in Clementi had 77.
Blk 421 Clementi Ave 1 flats for sale, against recent transactions
No flat here is asking below recent resales of similar-sized flats in this block. We could compare 2 of the flats on sale.
We compare each flat on sale with recent sales of similar-sized flats in the same block. A size only counts if there have been at least five sales of it. We don’t compare floors, so a flat lower down can look cheaper than it is.
Free account, no card. Your price carries over.
A link to a single Blk 421 Clementi Ave 1 flat that’s for sale on PropertyGuru or 99.co — the flat, not a block or overview page.
Blk 421 Clementi Ave 1 review — what the record shows
Observed facts from official records — HDB resale transactions (Singapore Open Data Licence), HDB property information and routed distances. No account needed.
Lease, flats and size
- Remaining lease
- 86 years · to 2112
- Full CPF use
- Buyers aged 21+ (lease covers to age 95)
- Flats in block
- 3-room ×76 · 4-room ×224
- Flat models
- Model A
- Storeys
- 40
- Completed
- 2012
Transacted prices
- 3-room median · 12 mo
- S$650,000 · 1 resale
- 4-room median · 12 mo
- S$975,888 · 7 resales
- Resales recorded · 24 mo
- 18 of 300 flats (6.0%) · 3.7% across Clementi
© contributors | Singapore Land AuthorityNearest MRT, buses and parking
- Nearest MRT
- ClementiEW23 · 0.8 km · 1 within 1 km
- Next-nearest MRT
- DoverEW22 · 1.2 km
- Planned MRT within 1 km
- Clementi · Cross Island Line from 2032 · about 800 m
- Nearest bus stop
- Opp Blk 420A (Clementi Ave 1) · 83 m · 10 within 400 m
- Bus service there
- 189
- Parking
- Surface car park · Electronic parking
- Short-term parking
- No
- Free parking
- No
- Night parking
- No
Hawker centres, schools and shops nearby
- Primary schools within 1 km
- 2 · Clementi Primary School, Pei Tong Primary School
- Nearest preschool
- PCF Sparkletots Preschool @ Clementi Blk 420A · 84 m
- Nearest hawker centre
- Clementi Ave 3 Blk 448 · 630 m · 3 within 1 km
- Next-nearest hawker centre
- Clementi Ave 2 Blk 353 (Clementi Ave 2 Market/Cooked Food Centre) · 647 m
- Nearest supermarket
- Sheng Siong Supermarket (420A Clementi Avenue 1) · 70 m · 8 within 1 km
- Nearest wet market
- Blk 448 Clementi Ave 3 · 634 m
- Nearest shopping mall
- 321 Clementi · 495 m · 4 within 1 km
- Nearest park
- Taman Mas Merah Playground · 406 m · 3 within 1 km
- Next-nearest park
- Jalan Mas Kuning Playground · 555 m
Evidence updated Aug 2026 · page last changed 06-10-2026
Recent resale transactions
As published by HDB, monthly. Storey is a range; floor area is the registered area.
| Month | Flat type | Model | Storey | Floor area | Lease left | Price | S$ psf |
|---|---|---|---|---|---|---|---|
| Aug 2026 | 4-room | Model A | 07 TO 09 | 92 sqm · 990 sqft | 86 yrs | S$880,000 | 889 |
| Jun 2026 | 4-room | Model A | 22 TO 24 | 96 sqm · 1,033 sqft | 86 yrs | S$970,000 | 939 |
| May 2026 | 3-room | Model A | 19 TO 21 | 73 sqm · 786 sqft | 86 yrs | S$650,000 | 827 |
| Apr 2026 | 4-room | Model A | 25 TO 27 | 100 sqm · 1,076 sqft | 86 yrs | S$975,888 | 907 |
| Mar 2026 | 4-room | Model A | 19 TO 21 | 96 sqm · 1,033 sqft | 86 yrs | S$985,000 | 954 |
| Jan 2026 | 4-room | Model A | 31 TO 33 | 96 sqm · 1,033 sqft | 86 yrs | S$1,038,000 | 1005 |
| Nov 2025 | 4-room | Model A | 10 TO 12 | 100 sqm · 1,076 sqft | 86 yrs | S$965,000 | 897 |
| Nov 2025 | 4-room | Model A | 22 TO 24 | 91 sqm · 980 sqft | 86 yrs | S$978,000 | 998 |
| Aug 2025 | 4-room | Model A | 10 TO 12 | 91 sqm · 980 sqft | 87 yrs | S$942,888 | 962 |
| Aug 2025 | 4-room | Model A | 22 TO 24 | 100 sqm · 1,076 sqft | 87 yrs | S$970,000 | 901 |
Contains information from HDB resale transaction data accessed via data.gov.sg, made available under the Singapore Open Data Licence.
What Blk 421 Clementi Ave 1 rents for
The median approved rent at Blk 421 Clementi Ave 1 is S$4,200 a month for a 4-room flat, from 5 tenancies approved by HDB in the 12 months to Aug 2026.
- Median rent · 4-room
- S$4,200/month · S$4.05 psf/month · 5 approved
Flat types and sizes at Blk 421 Clementi Ave 1
This block has resold 3-room and 4-room flats. Check an asking price against what the same flat type fetched in this block.
Blk 421 Clementi Ave 1 at a glance
The same facts as the table above, drawn. Nothing modelled.
Blocks around Blk 421 Clementi Ave 1
The 8 HDB blocks nearest Blk 421 Clementi Ave 1, on any street, not just this one. Numbered to match the map below. 4-room is the flat type resold most often here in the last 12 months, so every median below is for 4-room flats only.
© contributors | Singapore Land Authority| # | Block | Distance | 4-room median · 12 mo | Block rating | Lease left |
|---|---|---|---|---|---|
| 1 | Blk 465A Clementi Ave 1 | 80 m | none in 12 mo | B | 95 yrs |
| 2 | Blk 422 Clementi Ave 1 | 110 m | none in 12 mo | C | 84 yrs |
| 3 | Blk 464B Clementi Ave 1 | 120 m | none in 12 mo | B | 96 yrs |
| 4 | Blk 420 Clementi Ave 1 | 140 m | S$935,000 · 5 resales | B | 86 yrs |
| 5 | Blk 466A Clementi Ave 1 | 150 m | none in 12 mo | B | 95 yrs |
| 6 | Blk 423 Clementi Ave 1 | 180 m | S$962,000 · 1 resale | C | 86 yrs |
| 7 | Blk 419 Clementi Ave 1 | 190 m | none in 12 mo | C | 84 yrs |
| 8 | Blk 464A Clementi Ave 1 | 220 m | none in 12 mo | B | 95 yrs |
About Blk 421 Clementi Ave 1
Blk 421 Clementi Ave 1 is a 40-storey HDB block in Clementi, completed in 2012, with about 86 years left on its 99-year lease. Clementi MRT is about 0.8 km away, with Dover 1.2 km out, and 10 bus stops lie within 400 m. Within 1 km: 2 primary schools, 3 hawker centres, 8 supermarkets and 3 parks. Over the last 12 months the 4-room median here was S$975,888 across 7 resales, and 18 resales in this block have been published by HDB over the past 24 months. Page last updated 06-10-2026.
Frequently asked
How much does a 4-room flat at Blk 421 Clementi Ave 1 cost?
Over the last 12 months, 7 4-room resales were recorded here at a median of S$975,888. Any one flat’s price depends on its size, storey and remaining lease.
What is the remaining lease at Blk 421 Clementi Ave 1?
About 86 years, to 2112, as of 15-09-2026. HDB flats are on a 99-year lease.
Can I use full CPF for a flat in this block?
The remaining lease covers a buyer aged 21 or older to age 95, the threshold for unrestricted CPF use under current rules; younger buyers face pro-rated limits. This is a statement of the published rule, not financial advice.
Which MRT station is nearest to Blk 421 Clementi Ave 1?
Clementi, about 0.8 km away. The next-nearest is Dover, about 1.2 km away.
Which primary schools are near Blk 421 Clementi Ave 1?
Within 1 km: Clementi Primary School, Pei Tong Primary School. Proximity to a school within 1 km is a registration priority under MOE's P1 rules.
Where do you shop near Blk 421 Clementi Ave 1?
Sheng Siong Supermarket (420A Clementi Avenue 1), about 70 m away, one of 8 within 1 km. The nearest wet market is Blk 448 Clementi Ave 3, about 634 m away. The nearest shopping mall is 321 Clementi, about 495 m away.
Does Blk 421 Clementi Ave 1 have a PriceVero rating?
Yes — a block rating of B on an A–E scale, measured within HDB resales only and never compared with a condominium. A price gets its own reading — low, in line or high — when you name it.
What about Cash Over Valuation (COV) at Blk 421 Clementi Ave 1?
Nobody can know it in advance: HDB values the flat only after the Option to Purchase is granted. We do not predict valuations or COV; we read a price against this block’s resales, the evidence you have before the OTP.
Is there parking at Blk 421 Clementi Ave 1?
The nearest HDB car park to Blk 421 Clementi Ave 1 is a surface car park. Short-term parking: No. Free parking: No. Night parking: No. Published by HDB under the Singapore Open Data Licence.
Is there a review of Blk 421 Clementi Ave 1?
There are no user reviews here. This page shows what has actually transacted at Blk 421 Clementi Ave 1: recent resale prices by flat type, the remaining lease, what is nearby, and a PriceVero block rating of B on an A–E scale within HDB.
What does a flat at Blk 421 Clementi Ave 1 rent for?
The median approved rent at Blk 421 Clementi Ave 1 is S$4,200 a month for a 4-room flat, from 5 tenancies approved by HDB in the 12 months to Aug 2026.
Where do the rent figures for Blk 421 Clementi Ave 1 come from?
These are tenancies HDB approved, not asking rents. Landlords declare the rent and HDB does not check it, so we show a median for each flat type rather than single rents. Source: HDB, under the Singapore Open Data Licence. Whole flats only — room rentals are not counted, because Singapore has no public register of room rents.