Blk 431 Choa Chu Kang Ave 4

3 filed resale transactions · Choa Chu Kang · 67 years of lease left

Median, per square foot
484 psf
Observed range
$473 — $545 psf
S$578k median price

Lease to 2092 · 3 filed transactions

S$578k
Median price
3
Filed transactions
15%
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
I own this

Median price by month2 months with a sale

Mar '24 · S$530kJun '25 · S$644k

The transactions behind those figures3 of 3

Nothing modelled — these are the filed sales.

111 sqm · storey 01–034 ROOM · Model A · 2025-06
S$578,000$484 psf
121 sqm · storey 13–155 ROOM · Improved · 2025-06
S$710,000$545 psf
104 sqm · storey 10–124 ROOM · Model A · 2024-03
S$530,000$473 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$484 psf puts this block in band 3 of 6 for Choa Chu Kang — 228 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 431 Choa Chu Kang Ave 4 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.

StoreysMedian psfFiled sales
01 TO 03S$469337
04 TO 06S$483417
07 TO 09S$499362
10 TO 12S$504307
13 TO 15S$519198
16 TO 18S$55776
19 TO 21S$60023

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
Choa Chu Kang
299m
Primary schools within 1km
3
nearest 566m
Primary schools · straight-line distance
  • South View Primary School566m
  • Chua Chu Kang Primary School698m
  • Concord Primary School762m
4 more between 1km and 2km
  • De La Salle School1.2km
  • Kranji Primary School1.2km
  • Teck Whye Primary School1.3km
  • Yew Tee Primary School1.7km
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
  • Choa Chu Kang299m
  • Choa Chu Kang331m
  • South View555m
Also nearby
  • ParkChoa Chu Kang PK680m
  • Other schoolsBukit Panjang Govt. High School429m

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.

What has sold nearby300m

31blocks within 300m
$465–$513the middle half, per sq ft
$488median of those sales

From 178 filed sales — the 20 most recent at each block, which is all this index keeps.

BlockAwayFiledStoreySizePSF
Blk 437 Choa Chu Kang Ave 4126m2026-0910–12148 sqm$554
Blk 435 Choa Chu Kang Ave 4146m2026-0901–03104 sqm$460
Blk 418 Choa Chu Kang Ave 4191m2026-0904–06106 sqm$469
Blk 353 Choa Chu Kang Ctrl278m2026-0901–03108 sqm$452
Blk 433 Choa Chu Kang Ave 499m2026-0804–06107 sqm$457
Blk 350 Choa Chu Kang Ctrl197m2026-0801–03149 sqm$587
Blk 414 Choa Chu Kang Ave 4215m2026-0801–03104 sqm$473
Blk 421 Choa Chu Kang Ave 4276m2026-0810–12104 sqm$496
Blk 416 Choa Chu Kang Ave 485m2026-0701–03133 sqm$489
Blk 351 Choa Chu Kang Ctrl157m2026-0707–09142 sqm$559
Blk 414 Choa Chu Kang Ave 4215m2026-0701–03104 sqm$454
Blk 422 Choa Chu Kang Ave 4218m2026-0701–03104 sqm$491
Blk 433 Choa Chu Kang Ave 499m2026-0607–09104 sqm$509
Blk 435 Choa Chu Kang Ave 4146m2026-0610–12121 sqm$470
Blk 306 Choa Chu Kang Ave 4160m2026-0407–09106 sqm$530
Blk 430 Choa Chu Kang Ave 477m2026-0301–03104 sqm$492
Blk 430 Choa Chu Kang Ave 477m2026-0207–09124 sqm$494

The 17 most recent are listed, out of 178 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°

NESW

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.

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.

Nothing with planning permission sits on those bearings within 400m. That is a fact about this radius and these bearings, not a guarantee of a view — an application not yet decided does not appear here, and neither does anything further out.

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.
Hear when something is filed here

HDB publishes resale registrations by month, with a lag — so this tells you what the register now shows for Blk 431 Choa Chu Kang Ave 4, not what happened yesterday. Nothing goes out in a month when nothing was filed.

One click stops it, and stopping deletes the record rather than flagging it. Your address is never sold, never passed on, and never used for anything else. No phone number is asked for and none is stored.

Where the money actually goes

Drag the sale price. Everything moves.

Cash
Loan
CPF principal
CPF interest
Fees
Sale price · S$578,000
Outstanding loan
CPF principal used
Years held
Agent fee %
Sale priceS$578,000
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$15,400
Cash in handS$180,184
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.