Blk 421 Clementi Ave 1

33 filed resale transactions · Clementi · 86 years of lease left

Median, per square foot
889 psf
Observed range
S$746 — S$1,005 psf33 filed transactions · 29% low to highS$880k median filed price

Flat types filed at this block; choose the one relevant to your unit.

▲ 10.5% vs 12 months ago

HDB Resale Flat Prices (data.gov.sg) · 2023-09 to 2026-09 · accessed 2026-09-30

What are you here to work out?

I’m thinking of buying it
I own it

Median price by month23 months with a sale

Sep '23 · S$723kSep '26 · S$997k

The transactions behind those figures

20 of 33 · filed, nothing modelled
96 sqm · storey 22–244 ROOM · Model A · 2026-09
S$996,888$965 psf
92 sqm · storey 07–094 ROOM · Model A · 2026-08
S$880,000$889 psf
96 sqm · storey 22–244 ROOM · Model A · 2026-06
S$970,000$939 psf
73 sqm · storey 19–213 ROOM · Model A · 2026-05
S$650,000$827 psf
100 sqm · storey 25–274 ROOM · Model A · 2026-04
S$975,888$907 psf
96 sqm · storey 19–214 ROOM · Model A · 2026-03
S$985,000$953 psf
96 sqm · storey 31–334 ROOM · Model A · 2026-01
S$1,038,000$1005 psf
100 sqm · storey 10–124 ROOM · Model A · 2025-11
S$965,000$897 psf

Why a range, not one number. No record shows your floor, facing, renovation or lease, and where your unit sits inside this spread depends on them.

Dataset licences and attribution
Contains information from HDB Resale Flat Prices (data.gov.sg) accessed on 2026-09-30 from data.gov.sg, made available under the Singapore Open Data Licence v1.0Contains information from URA Data Service — PMI_Resi_Transaction accessed on 2026-09-30, made available under the Singapore Open Data Licence v1.0

Where it sitsThe whole map

© OneMap, SLA · © OpenStreetMap
Median psf · HDB
under $500
$500
$531
$560
$602
$684+

Streets and names: OneMap — Basemap © OneMap, Singapore Land Authority. Buildings: HDB’s own outlines and floor counts, and OpenStreetMap’s, drawn true to scale. Shadows are cast from every building of published height for the time shown; trees and awnings are in no dataset. Two fingers move the map on a phone.

Sun and shadow here — any hour, any month

Deeper checks

What changes from one home to the next.

Floor, surroundings, nearby sales, afternoon sun and the history of the land—shown only where the public record carries enough to say something.

What the floor is worth

This block+21.2%

Floors 13+ against floors 1–6, Blk 421 Clementi Ave 1 only. Median S$924 psf up top from 16 sales, S$762 psf low down from 4.

CLEMENTI, typical block+21.2%

Middle of 6 blocks in CLEMENTI that clear the bar — half fall between +12.7% and +22.8%. None came out negative in this set.

Every band in CLEMENTI, for reference. Pooled across buildings, so it mixes the age of an estate with height; the two figures above hold a building constant.

StoreysMedian psfFiled sales
01 TO 03S$52769
04 TO 06S$609121
07 TO 09S$617113
10 TO 12S$631109
13 TO 15S$68845
16 TO 18S$91028
19 TO 21S$95328
22 TO 24S$1,07621
25 TO 27S$1,10927
28 TO 30S$1,10822
31 TO 33S$1,11923
34 TO 36S$1,11315
37 TO 39S$1,16111

HDB Resale Flat Prices (data.gov.sg) · accessed 2026-09-30 · storey bands as published · a median of filed sales, not a valuation of any home

What's around

Straight-line distance from the building — the walk is longer, and how much longer depends on what is in the way.

Nearest station
Clementi
633m
Primary schools within 1km
2
nearest 794m
Primary schools · straight-line distance
3 more between 1km and 2km
The 1km band gives ballot priority, not a school place. These distances are an indication. Check your address's official category with OneMap's SchoolQuery.
How this distance differs from MOE's

MOE measures in a straight line to the school's land boundary from the address on your child's registration. This site measures from the block to the school's single registered coordinate. A large campus can therefore read as further away here, and a school near the line can fall on either side when MOE measures it. An oversubscribed school still ballots within a band.

Stations
  • Clementi633m
  • Dover1.1km
Also nearby
  • Hawker centreClementi Ave 3 Blk 448634m
  • ParkClementi Woods Park1.1km
  • Preschools6 within 1kmnearest 84m
  • Other schoolsNan Hua High School114m

Coordinates from OneMap, © Singapore Land Authority. Distances are straight-line.
Station exit locations — LTA (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.
School addresses — MOE School Directory and Information (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.
Hawker centre locations — NEA (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.
Park locations — NParks (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.
Preschool locations — ECDA (data.gov.sg), under the Singapore Open Data Licence. Accessed 2026-08-23.

What has sold nearby300m

9blocks within 300m
$765–$901the middle half, per sq ft
$855median of those sales

From 89 filed sales, at most the 20 most recent per block — 1 has sold more than is counted here.

Scroll sideways to see the date, storey, size and psf →

BlockAwayFiledStoreySizePSF
Blk 464B Clementi Ave 1123m2026-0834–3671 sqm$1,172
Blk 420 Clementi Ave 1136m2026-0807–0996 sqm$898
Blk 424 Clementi Ave 1243m2026-0810–12100 sqm$855
Blk 420 Clementi Ave 1136m2026-0710–1292 sqm$936
Blk 423 Clementi Ave 1178m2026-0704–0675 sqm$879
Blk 423 Clementi Ave 1178m2026-0710–1299 sqm$903
Blk 418 Clementi Ave 1219m2026-0704–0650 sqm$790
Blk 411 C'Wealth Ave West240m2026-0710–1297 sqm$594
Blk 424 Clementi Ave 1243m2026-0713–1573 sqm$910
Blk 420 Clementi Ave 1136m2026-0604–0674 sqm$814
Blk 420 Clementi Ave 1136m2026-0622–2496 sqm$948
Blk 460 Clementi Ave 3278m2026-0607–0986 sqm$858
Blk 420 Clementi Ave 1136m2026-0504–0674 sqm$816
Blk 420 Clementi Ave 1136m2026-0510–1296 sqm$905
Blk 423 Clementi Ave 1178m2026-0304–0649 sqm$868
Blk 420 Clementi Ave 1136m2025-1228–30100 sqm$910
Blk 420 Clementi Ave 1136m2025-0904–0696 sqm$885

The 17 most recent of 89 at this radius. Storey bands as published; no feed carries a unit number.

Where the money actually goes

Drag the sale price. Everything moves.

Cash
Loan
CPF refund from proceeds
Fees
Sale price · S$880,000
Outstanding loan
CPF principal used
CPF accrued interest, if known

Use the “What happens if” figure in your CPF Home ownership dashboard. Leave blank to estimate it.

Years since CPF was first used

Used only for the estimate when accrued interest is blank.

Agent fee %

A sale at S$880,000

Your figures · CPF interest estimated
Sale priceS$880,000
Redeems the loan−S$180,000
Agent fee (2% + GST) and legal−S$21,984
Refund to your CPFprincipal plus estimated accrued interest−S$202,416
Cash to youS$475,600
S$202,416 returns to your CPF, not your pocket — still yours, and it can fund the next purchase. The accrued interest alone is S$52,416. CPF Board’s market-value rule · CPF OA interest 2.5% p.a.

Three things this can't know

  1. Your actual floor, facing and renovationPublic data gives a storey band, never your unit.
  2. Whether you sell or buy firstChanges your ABSD, timeline and bridging cost — often by five figures.
  3. Your real CPF accrued interestThe figure here is an estimate. Yours is in your CPF statement right now.

Tell me those and I'll run your actual numbers — no charge, no obligation.

Optional — but it's the single biggest thing the public data can't see.

What are you weighing up?
Rough timing
Staying in touch — optional

Leave it unticked and the form still sends — you get the reply to what you asked, at the address you gave, and nothing after it. This form asks for no phone number and stores none.

Leaving it unticked is fine — the tools work either way, and I'll still reply to this enquiry. I don't sell or share your details.

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