Blk 451 Choa Chu Kang Ave 4

3 filed resale transactions · Choa Chu Kang · 74 years 04 months of lease left

Median, per square foot

452 psf

Observed range

S$438 — S$473 psf3 filed transactions · 8% low to highS$506k 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 month3 months with a sale

Oct '23 · S$490kNov '24 · S$530k

The transactions behind those figures

3 of 3 · filed, nothing modelled

104 sqm · storey 13–154 ROOM · Premium Apartment · 2024-11

S$530,000$473 psf

104 sqm · storey 04–064 ROOM · Premium Apartment · 2024-08

S$506,000$452 psf

104 sqm · storey 13–154 ROOM · Premium Apartment · 2023-10

S$490,000$438 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

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.

Storeys	Median psf	Filed sales
01 TO 03	S$469	339
04 TO 06	S$483	423
07 TO 09	S$499	370
10 TO 12	S$504	313
13 TO 15	S$521	199
16 TO 18	S$562	77
19 TO 21	S$564	24

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

South View

1.1km

Primary schools within 1km

nearest 64m

Primary schools · straight-line distance

Concord Primary SchoolEvery citizen got a place 2C 202564m
Chua Chu Kang Primary SchoolBallot even within 1 km 2C 2025733m

3 more between 1km and 2km

South View Primary School1.2km
De La Salle School1.8km
Kranji Primary School2.0km

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

South View1.1km
Choa Chu Kang1.1km
Choa Chu Kang1.1km

Also nearby

ParkChoa Chu Kang PK1.5km
Preschools6 within 1kmnearest 189m
Other schoolsBukit Panjang Govt. High School387m

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.
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

Distance from Blk 451 Choa Chu Kang Ave 4Straight-line, not walking.

24blocks within 300m

$453–$497the middle half, per sq ft

$474median of those sales

From 145 filed sales, at most the 20 most recent per block.

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

Block	Away	Filed	Storey	Size	PSF
Blk 446 Choa Chu Kang Ave 4	156m	2026-09	13–15	100 sqm	$474
Blk 447 Choa Chu Kang Ave 4	220m	2026-09	13–15	100 sqm	$511
Blk 452 Choa Chu Kang Ave 4	46m	2026-08	04–06	104 sqm	$444
Blk 453 Choa Chu Kang Ave 4	83m	2026-08	07–09	123 sqm	$423
Blk 471 Choa Chu Kang Ave 3	231m	2026-08	07–09	121 sqm	$502
Blk 457 Choa Chu Kang Ave 4	168m	2026-07	13–15	142 sqm	$504
Blk 461 Choa Chu Kang Ave 4	242m	2026-07	04–06	123 sqm	$472
Blk 452 Choa Chu Kang Ave 4	46m	2026-06	10–12	104 sqm	$447
Blk 453 Choa Chu Kang Ave 4	83m	2026-05	07–09	142 sqm	$471
Blk 462 Choa Chu Kang Ave 4	286m	2026-05	07–09	103 sqm	$455
Blk 472 Choa Chu Kang Ave 3	236m	2026-04	07–09	101 sqm	$488
Blk 472 Choa Chu Kang Ave 3	236m	2026-04	04–06	121 sqm	$476
Blk 453 Choa Chu Kang Ave 4	83m	2026-03	01–03	123 sqm	$415
Blk 449 Choa Chu Kang Ave 4	119m	2026-03	07–09	103 sqm	$446
Blk 448 Choa Chu Kang Ave 4	189m	2026-03	10–12	141 sqm	$540
Blk 452 Choa Chu Kang Ave 4	46m	2026-02	01–03	103 sqm	$440
Blk 449 Choa Chu Kang Ave 4	119m	2026-02	10–12	103 sqm	$479
Blk 456 Choa Chu Kang Ave 4	124m	2026-02	07–09	105 sqm	$465

The 18 most recent of 145 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$506,000

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$506,000

Your figures · CPF interest estimated

Sale price	S$506,000
Redeems the loan	−S$180,000
Agent fee (2% + GST) and legal	−S$13,831
Refund to your CPFprincipal plus estimated accrued interest	−S$202,416
Cash to you	S$109,753

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

Your actual floor, facing and renovationPublic data gives a storey band, never your unit.
Whether you sell or buy firstChanges your ABSD, timeline and bridging cost — often by five figures.
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.

Name

Your floor or stack

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

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