Blk 637 Choa Chu Kang Nth 6

5 filed resale transactions · Choa Chu Kang · 70 years 11 months of lease left

Median, per square foot

534 psf

Observed range

$484 — $557 psf
S$740k median price

Lease to 2097 · 5 filed transactions

S$740k

Median price

Filed transactions

14%

Spread, low to high

HDB Resale Flat Prices (data.gov.sg) · 2023-09 to 2026-09 · accessed 2026-09-10

Which of these are you

I’m considering buying this

What it costs on the day, at $740,000Loan, downpayment, the cash CPF cannot cover, and both stamp duties
Run six checks before you commitThe asking price, nearby MOP supply, land coming, and what could be built next door
What a higher floor is worth hereMeasured within this building, not across the country
What is within reach of itSchools, stations and shops, at straight-line distance
Put it beside another blockTwo or three side by side, in a link you can send to whoever else is deciding

I own this

Median price by month5 months with a sale

Dec '23 · S$740kFeb '26 · S$635k

The transactions behind those figures5 of 5

Nothing modelled — these are the filed sales.

113 sqm · storey 07–094 ROOM · Premium Apartment · 2026-02

S$635,000$522 psf

143 sqm · storey 13–15EXECUTIVE · Premium Maisonette · 2025-09

S$858,000$557 psf

113 sqm · storey 07–094 ROOM · Premium Apartment · 2025-06

S$650,000$534 psf

142 sqm · storey 07–09EXECUTIVE · Premium Apartment · 2024-12

S$830,888$544 psf

142 sqm · storey 04–06EXECUTIVE · Premium Apartment · 2023-12

S$740,000$484 psf

Why a range, not one number. Valuation tools routinely disagree by S$15,000–S$80,000 on the same home, because none can see your floor, facing, renovation or lease. The spread above is the real one — the cheapest and dearest psf actually filed here over the period. Where your unit sits inside it depends on the things the data cannot see.

Contains information from HDB Resale Flat Prices (data.gov.sg) accessed on 2026-09-10 from data.gov.sg, made available under the Singapore Open Data Licence v1.0Contains information from URA Data Service — PMI_Resi_Transaction accessed on 2026-09-10, made available under the Singapore Open Data Licence v1.0

Where it sits in Choa Chu Kang505 blocks

S$534 psf puts this block in band 5 of 6 for Choa Chu Kang — 394 of 505 blocks with a filed median went for less.

Skip the map

S$388S$868median psf, six equal-sized groups in this town

Blk 637 Choa Chu Kang Nth 6 among 505 blocks in the same town. Outline: URA Master Plan planning area. Positions: OneMap. No distance or route is shown — only where things are. Shading is each block’s own median psf from its filed resales, in six equal-sized groups of this town.

What the floor is worth

This block—

Not enough filed sales at both ends of this block to compare it with itself. It needs 3 or more high and 3 or more low. The figure beside this one is the town, not here.

CHOA CHU KANG, typical block+13.2%

Middle of 18 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. This pools all buildings in the town, so it carries the estates as well as the storeys — a town whose tall blocks are its newest ones will show a steeper climb than height alone buys. The two figures above are the ones that hold a building constant.

Storeys	Median psf	Filed sales
01 TO 03	S$469	337
04 TO 06	S$483	417
07 TO 09	S$499	362
10 TO 12	S$504	307
13 TO 15	S$519	198
16 TO 18	S$557	76
19 TO 21	S$600	23

HDB Resale Flat Prices (data.gov.sg) · accessed 2026-09-10T21:08:48.055Z. Storey bands are the source's own — no floor number is inferred from them. A premium is a median of filed transactions, 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

89m

Primary schools within 1km

nearest 324m

Primary schools · straight-line distance

Yew Tee Primary School324m
Kranji Primary School433m
De La Salle School624m
Unity Primary School626m

2 more between 1km and 2km

Teck Whye Primary School1.6km
South View Primary School1.8km

A band is priority, not a place — and this is an indication, not MOE's answer. MOE measures home to school in a straight line, which is what is measured here. But it measures to the school's land boundary and this measures to the school's single registered coordinate, so a large campus reads as further away than MOE would find it. It also measures from the address on your child's registration, not from the block. A school near the line can fall either side of it once MOE measures it, and an oversubscribed school still ballots within a band. For the official category for a specific address, use OneMap's SchoolQuery.

Stations

Yew Tee89m
Choa Chu Kang1.4km
Choa Chu Kang1.4km

Also nearby

Hawker centreYew Tee Hawker Centre247m
ParkChoa Chu Kang Way Park (Pd Worksite)862m
Other schoolsUnity Secondary School376m

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.

What has sold nearby300m

Distance from Blk 637 Choa Chu Kang Nth 6Straight-line, not walking — what sits between two points is in no dataset here.

27blocks within 300m

$490–$550the middle half, per sq ft

$520median of those sales

From 143 filed sales — the 20 most recent at each block, which is all this index keeps.

Block	Away	Filed	Storey	Size	PSF
Blk 639 Choa Chu Kang St 64	107m	2026-09	04–06	123 sqm	$527
Blk 635 Choa Chu Kang Nth 6	163m	2026-09	01–03	113 sqm	$473
Blk 786 Choa Chu Kang Dr	256m	2026-09	04–06	111 sqm	$498
Blk 633 Choa Chu Kang Nth 6	146m	2026-08	13–15	127 sqm	$556
Blk 620 Choa Chu Kang St 62	270m	2026-08	10–12	108 sqm	$507
Blk 635 Choa Chu Kang Nth 6	163m	2026-07	13–15	113 sqm	$494
Blk 641 Choa Chu Kang St 64	213m	2026-07	10–12	123 sqm	$593
Blk 627 Choa Chu Kang St 62	236m	2026-07	04–06	121 sqm	$529
Blk 626 Choa Chu Kang St 62	272m	2026-07	10–12	100 sqm	$546
Blk 792 Choa Chu Kang Nth 6	274m	2026-07	13–15	111 sqm	$527
Blk 785 Choa Chu Kang Dr	281m	2026-07	10–12	108 sqm	$530
Blk 788 Choa Chu Kang Nth 6	177m	2026-06	04–06	128 sqm	$515
Blk 632 Choa Chu Kang Nth 6	91m	2026-05	07–09	127 sqm	$527
Blk 639 Choa Chu Kang St 64	107m	2026-05	07–09	100 sqm	$599
Blk 635 Choa Chu Kang Nth 6	163m	2026-05	13–15	143 sqm	$606
Blk 638 Choa Chu Kang St 64	54m	2026-04	04–06	123 sqm	$582
Blk 640 Choa Chu Kang St 64	172m	2026-04	13–15	145 sqm	$609
Blk 643 Choa Chu Kang St 64	141m	2026-03	04–06	123 sqm	$591
Blk 640 Choa Chu Kang St 64	172m	2026-03	07–09	100 sqm	$596

The 19 most recent are listed, out of 143 in the index at this radius. The floor band is what URA and HDB publish; neither feed carries a unit number.

The afternoon sun, and what is approved in it247°–293°

Seen from here, the sun sets at 247° (WSW) in December and 293° (WNW) in June — a swing of 47° across the year. A window on one of those bearings takes the low sun for part of the year and none of it for the rest.

Today the sun drops below 15° at 06:04 pm and sets at 07:00 pm, arriving from 273° (W). Above that angle it is over the roof rather than through the window; near the equator the midday sun is almost overhead, which is why this is only ever about the last hour.

Which way does the unit face?

Nothing published says which way a unit points — not URA, not HDB. You are the one standing in it, or holding the plan. If the floor plan carries a north arrow, the plan reader will read it off and say so when it cannot.

1 permitted planning decision sits on those bearings within 400m. What it means depends entirely on which:

Approved	Away	Bearing	Height	What
2025-10-06	221m	278° W	10 storeys	Proposed integrated hdb development comprising a 10-storey public housing block (total 68 units) with precinct pavilio…

This does not tell you whether anything is blocked. A shadow needs the height and footprint of every building between you and the sun, and no public dataset here carries them — so none is drawn. What is above is the bearing the sun arrives on, which is astronomy, and what has been permitted along it, which is a filed decision with a reference number. Joining the two is yours. Bearings and distances are straight-line. A decision is permission to build, not a building: some are never started, and heights come from URA’s own wording, which states one about four times in five.

Where the money actually goes

Drag the sale price. Everything moves.

Cash

Loan

CPF principal

CPF interest

Fees

Sale price · S$740,000

Outstanding loan

CPF principal used

Years held

Agent fee %

Sale priceS$740,000

Outstanding loan−S$180,000

CPF principal refundBack into your CPF, not lost−S$150,000

CPF accrued interestCPF OA rate, compounded over 12 years−S$52,416

Agent fee (2% + GST) and legal−S$18,932

Cash in handS$338,652

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, and it grows every year you hold. HDB concessionary loan interest is 2.6% p.a.; CPF Ordinary Account accrues at 2.5%.

Look up somewhere else

Any HDB block or private project in Singapore.