Blk 640 Choa Chu Kang St 64

8 filed resale transactions · Choa Chu Kang · 70 years 10 months of lease left

Median, per square foot

600 psf

Observed range

S$525 — S$641 psf8 filed transactions · 19% low to highS$670k median filed price

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

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 month6 months with a sale

Apr '24 · S$583kApr '26 · S$950k

The transactions behind those figures

8 of 8 · filed, nothing modelled

145 sqm · storey 13–15EXECUTIVE · Premium Apartment · 2026-04

S$950,000$609 psf

100 sqm · storey 07–094 ROOM · Premium Apartment · 2026-03

S$642,000$596 psf

100 sqm · storey 10–124 ROOM · Premium Apartment · 2025-05

S$690,000$641 psf

100 sqm · storey 13–154 ROOM · Premium Apartment · 2025-05

S$650,000$604 psf

145 sqm · storey 16–18EXECUTIVE · Premium Apartment · 2025-04

S$980,000$628 psf

145 sqm · storey 16–18EXECUTIVE · Premium Apartment · 2024-05

S$885,000$567 psf

100 sqm · storey 10–124 ROOM · Premium Apartment · 2024-04

S$565,000$525 psf

100 sqm · storey 16–184 ROOM · Premium Apartment · 2024-04

S$600,000$557 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

Yew Tee

257m

Primary schools within 1km

nearest 190m

Primary schools · straight-line distance

Yew Tee Primary SchoolEvery citizen got a place 2C 2025190m
Kranji Primary School534m
Unity Primary SchoolEvery citizen got a place 2C 2025642m
De La Salle SchoolEvery citizen got a place 2C 2025792m

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

Yew Tee257m
Choa Chu Kang1.5km
Choa Chu Kang1.5km

Also nearby

Hawker centreYew Tee Hawker Centre417m
ParkRail Corridor761m
Preschools6 within 1kmnearest 133m
Other schoolsUnity Secondary School470m

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

Distance from Blk 640 Choa Chu Kang St 64Straight-line, not walking.

19blocks within 300m

$483–$556the middle half, per sq ft

$519median of those sales

From 107 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 635 Choa Chu Kang Nth 6	48m	2026-09	01–03	113 sqm	$473
Blk 639 Choa Chu Kang St 64	70m	2026-09	04–06	123 sqm	$527
Blk 631 Choa Chu Kang Nth 6	215m	2026-09	10–12	142 sqm	$582
Blk 791 Choa Chu Kang Nth 6	252m	2026-09	04–06	128 sqm	$466
Blk 633 Choa Chu Kang Nth 6	130m	2026-08	13–15	127 sqm	$556
Blk 635 Choa Chu Kang Nth 6	48m	2026-07	13–15	113 sqm	$494
Blk 641 Choa Chu Kang St 64	60m	2026-07	10–12	123 sqm	$593
Blk 792 Choa Chu Kang Nth 6	297m	2026-07	13–15	111 sqm	$527
Blk 641 Choa Chu Kang St 64	60m	2026-06	13–15	123 sqm	$604
Blk 641 Choa Chu Kang St 64	60m	2026-06	07–09	123 sqm	$589
Blk 788 Choa Chu Kang Nth 6	268m	2026-06	04–06	128 sqm	$515
Blk 635 Choa Chu Kang Nth 6	48m	2026-05	13–15	143 sqm	$606
Blk 639 Choa Chu Kang St 64	70m	2026-05	07–09	100 sqm	$599
Blk 632 Choa Chu Kang Nth 6	170m	2026-05	07–09	127 sqm	$527
Blk 638 Choa Chu Kang St 64	139m	2026-04	04–06	123 sqm	$582
Blk 641 Choa Chu Kang St 64	60m	2026-03	07–09	100 sqm	$599

The 16 most recent of 107 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$670,000

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$670,000

Your figures · CPF interest estimated

Sale price	S$670,000
Redeems the loan	−S$180,000
Agent fee (2% + GST) and legal	−S$17,406
Refund to your CPFprincipal plus estimated accrued interest	−S$202,416
Cash to you	S$270,178

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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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.

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