Blk 433 Choa Chu Kang Ave 4

5 filed resale transactions · Choa Chu Kang · 65 years 10 months of lease left

Median, per square foot
467 psf
Observed range
S$427 — S$509 psf5 filed transactions · 18% low to highS$538k median filed price

Flat type filed here: 4-room. Confirm the specific unit’s type from its listing before running Blindspot.

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 month5 months with a sale

Nov '23 · S$492kAug '26 · S$526k

The transactions behind those figures

5 of 5 · filed, nothing modelled
107 sqm · storey 04–064 ROOM · Model A · 2026-08
S$526,000$457 psf
104 sqm · storey 07–094 ROOM · Model A · 2026-06
S$570,000$509 psf
104 sqm · storey 01–034 ROOM · Model A · 2024-12
S$555,000$496 psf
107 sqm · storey 10–124 ROOM · Model A · 2024-07
S$538,000$467 psf
107 sqm · storey 01–034 ROOM · Model A · 2023-11
S$492,000$427 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—

Too few filed sales at both ends of this block — it needs 3 high and 3 low. The figure beside is CHOA CHU KANG, not here.

CHOA CHU KANG, typical block+11.6%

Middle of 19 blocks in CHOA CHU KANG that clear the bar — half fall between +3.1% and +15.2%. 3 came out negative — high floors sold for less in 3 of them.

Every band in CHOA CHU KANG, 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$469339
04 TO 06S$483423
07 TO 09S$499370
10 TO 12S$504313
13 TO 15S$521199
16 TO 18S$56277
19 TO 21S$56424

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
Choa Chu Kang
264m
Primary schools within 1km
3
nearest 618m
Primary schools · straight-line distance
4 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
  • Choa Chu Kang264m
  • Choa Chu Kang314m
  • South View633m
Also nearby
  • Hawker centreYew Tee Hawker Centre1.4km
  • ParkChoa Chu Kang PK640m
  • Preschools6 within 1kmnearest 0m
  • Other schoolsBukit Panjang Govt. High School483m

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

19blocks within 300m
$473–$527the middle half, per sq ft
$495median of those sales

From 88 filed sales, at most the 20 most recent per block.

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

BlockAwayFiledStoreySizePSF
Blk 435 Choa Chu Kang Ave 484m2026-0901–03104 sqm$460
Blk 437 Choa Chu Kang Ave 4155m2026-0910–12148 sqm$554
Blk 418 Choa Chu Kang Ave 4288m2026-0904–06106 sqm$469
Blk 350 Choa Chu Kang Ctrl245m2026-0801–03149 sqm$587
Blk 416 Choa Chu Kang Ave 4180m2026-0701–03133 sqm$489
Blk 351 Choa Chu Kang Ctrl215m2026-0707–09142 sqm$559
Blk 435 Choa Chu Kang Ave 484m2026-0610–12121 sqm$470
Blk 355 Choa Chu Kang Ctrl300m2026-0601–03104 sqm$487
Blk 306 Choa Chu Kang Ave 4123m2026-0407–09106 sqm$530
Blk 439 Choa Chu Kang Ave 4258m2026-0407–09125 sqm$499
Blk 355 Choa Chu Kang Ctrl300m2026-0410–12104 sqm$500
Blk 430 Choa Chu Kang Ave 4136m2026-0301–03104 sqm$492
Blk 430 Choa Chu Kang Ave 4136m2026-0207–09124 sqm$494
Blk 432 Choa Chu Kang Ave 433m2026-0104–06121 sqm$480
Blk 434 Choa Chu Kang Ave 493m2026-0101–03111 sqm$483
Blk 434 Choa Chu Kang Ave 493m2026-0101–03114 sqm$456
Blk 307 Choa Chu Kang Ave 4109m2026-0107–09109 sqm$527
Blk 307 Choa Chu Kang Ave 4109m2026-0113–15137 sqm$543

The 18 most recent of 88 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$538,000
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$538,000

Your figures · CPF interest estimated
Sale priceS$538,000
Redeems the loan−S$180,000
Agent fee (2% + GST) and legal−S$14,528
Refund to your CPFprincipal plus estimated accrued interest−S$202,416
Cash to youS$141,056
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.

Look up somewhere else

Any HDB block or private project in Singapore.