Blk 525 Serangoon Nth Ave 4

4 filed resale transactions · Serangoon · 66 years 02 months of lease left

Median, per square foot
641 psf
Observed range
$561 — $657 psf
S$1,019k median price

Lease to 2091 · 4 filed transactions

S$1,019k
Median price
4
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 month4 months with a sale

Sep '23 · S$888kOct '25 · S$1,000k

The transactions behind those figures4 of 4

Nothing modelled — these are the filed sales.

147 sqm · storey 04–06EXECUTIVE · Maisonette · 2025-10
S$1,000,000$632 psf
147 sqm · storey 07–09EXECUTIVE · Maisonette · 2025-05
S$1,038,888$657 psf
150 sqm · storey 01–03EXECUTIVE · Maisonette · 2025-04
S$1,050,000$650 psf
147 sqm · storey 07–09EXECUTIVE · Maisonette · 2023-09
S$888,000$561 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 Serangoon220 blocks

S$641 psf puts this block in band 4 of 6 for Serangoon — 117 of 220 blocks with a filed median went for less.

Skip the map
S$499S$799median psf, six equal-sized groups in this town
Blk 525 Serangoon Nth Ave 4 among 220 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.

SERANGOON, typical block—

No block in SERANGOON has enough sales at both ends for this flat type. Nothing is shown rather than something estimated.

Every band in SERANGOON, 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$591124
04 TO 06S$631162
07 TO 09S$658125
10 TO 12S$676132
13 TO 15S$63828

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
Kovan
1.9km
Primary schools within 1km
1
nearest 265m
Primary schools · straight-line distance
  • Rosyth School265m
6 more between 1km and 2km
  • Hougang Primary School1.1km
  • Xinmin Primary School1.2km
  • Zhonghua Primary School1.4km
  • Yio Chu Kang Primary School1.6km
  • Montfort Junior School1.9km
  • CHIJ Our Lady of Good Counsel1.9km
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.
Also nearby
  • Hawker centreChomp Chomp Food Centre1.1km
  • ParkAng Mo Kio Linear PK (Plot 2)807m
  • Other schoolsSerangoon Garden Secondary School497m

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

38blocks within 300m
$552–$630the middle half, per sq ft
$594median of those sales

From 173 filed sales — the 20 most recent at each block, which is all this index keeps.

BlockAwayFiledStoreySizePSF
Blk 519 Serangoon Nth Ave 4207m2026-0907–09147 sqm$683
Blk 523 Serangoon Nth Ave 498m2026-0804–06104 sqm$583
Blk 548 Serangoon Nth Ave 3255m2026-0807–09120 sqm$619
Blk 507 Serangoon Nth Ave 4282m2026-0807–09121 sqm$706
Blk 522 Serangoon Nth Ave 492m2026-0704–06103 sqm$645
Blk 520 Serangoon Nth Ave 4110m2026-0707–09147 sqm$695
Blk 520 Serangoon Nth Ave 4110m2026-0704–06147 sqm$651
Blk 552 Serangoon Nth Ave 3163m2026-0713–15100 sqm$611
Blk 535A Serangoon Nth Ave 4255m2026-0707–09104 sqm$557
Blk 512 Serangoon Nth Ave 4288m2026-0707–09121 sqm$655
Blk 101 Serangoon Nth Ave 1291m2026-0704–0691 sqm$540
Blk 547 Serangoon Nth Ave 3293m2026-0710–12100 sqm$593
Blk 517 Serangoon Nth Ave 4176m2026-0610–12104 sqm$606
Blk 526 Serangoon Nth Ave 441m2026-0410–12147 sqm$708
Blk 529 Serangoon Nth Ave 4101m2026-0307–09108 sqm$626
Blk 524 Serangoon Nth Ave 463m2026-0110–12122 sqm$623
Blk 552 Serangoon Nth Ave 3163m2026-0107–09100 sqm$602
Blk 537 Serangoon Nth Ave 4194m2026-0104–06149 sqm$714
Blk 524 Serangoon Nth Ave 463m2025-1204–06104 sqm$581

The 19 most recent are listed, out of 173 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 525 Serangoon Nth 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$1,019,000
Outstanding loan
CPF principal used
Years held
Agent fee %
Sale priceS$1,019,000
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$25,014
Cash in handS$611,570
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.