Blk 123 Serangoon Nth Ave 1

8 filed resale transactions · Serangoon · 59 years 05 months of lease left

Median, per square foot
569 psf
Observed range
$530 — $650 psf
S$924k median price

Lease to 2084 · 8 filed transactions

S$924k
Median price
8
Filed transactions
21%
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 month6 months with a sale

Sep '23 · S$908kMay '25 · S$1,050k

The transactions behind those figures8 of 8

Nothing modelled — these are the filed sales.

150 sqm · storey 10–12EXECUTIVE · Maisonette · 2025-05
S$1,050,000$650 psf
150 sqm · storey 10–12EXECUTIVE · Maisonette · 2024-12
S$980,000$607 psf
150 sqm · storey 04–06EXECUTIVE · Maisonette · 2024-11
S$970,000$601 psf
150 sqm · storey 01–03EXECUTIVE · Maisonette · 2024-07
S$855,000$530 psf
150 sqm · storey 07–09EXECUTIVE · Maisonette · 2024-06
S$928,000$575 psf
150 sqm · storey 07–09EXECUTIVE · Maisonette · 2023-09
S$880,000$545 psf
150 sqm · storey 01–03EXECUTIVE · Maisonette · 2023-09
S$908,000$562 psf
155 sqm · storey 10–12EXECUTIVE · Maisonette · 2023-09
S$920,000$551 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$569 psf puts this block in band 2 of 6 for Serangoon — 42 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 123 Serangoon Nth Ave 1 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
1.5km
Primary schools within 1km
2
nearest 712m
Primary schools · straight-line distance
  • Rosyth School712m
  • Zhonghua Primary School815m
4 more between 1km and 2km
  • Xinmin Primary School1.3km
  • CHIJ Our Lady of Good Counsel1.4km
  • Hougang Primary School1.5km
  • Yio Chu Kang Primary School1.9km
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.
Stations
  • Kovan1.5km
  • Serangoon1.8km
  • Lorong Chuan1.9km
Also nearby
  • Hawker centreChomp Chomp Food Centre739m
  • ParkTavistock Ave PK882m
  • Other schoolsSerangoon Garden Secondary School454m

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

27blocks within 300m
$536–$584the middle half, per sq ft
$562median of those sales

From 137 filed sales — the 20 most recent at each block, which is all this index keeps.

BlockAwayFiledStoreySizePSF
Blk 141 Serangoon Nth Ave 2281m2026-0904–06113 sqm$599
Blk 142 Serangoon Nth Ave 1125m2026-0801–03152 sqm$573
Blk 114 Serangoon Nth Ave 1244m2026-0801–03121 sqm$526
Blk 114 Serangoon Nth Ave 1244m2026-0804–06121 sqm$537
Blk 143 Serangoon Nth Ave 158m2026-0713–1583 sqm$625
Blk 135 Serangoon Nth Ave 2249m2026-0704–06125 sqm$569
Blk 141 Serangoon Nth Ave 2281m2026-0707–09122 sqm$609
Blk 143 Serangoon Nth Ave 158m2026-0604–0683 sqm$590
Blk 142 Serangoon Nth Ave 1125m2026-0601–03146 sqm$617
Blk 120 Serangoon Nth Ave 1173m2026-0601–0391 sqm$526
Blk 135 Serangoon Nth Ave 2249m2026-0607–09121 sqm$606
Blk 152 Serangoon Nth Ave 1266m2026-0604–0664 sqm$615
Blk 125 Serangoon Nth Ave 178m2026-0504–06150 sqm$573
Blk 147 Serangoon Nth Ave 1169m2026-0407–0964 sqm$646
Blk 147 Serangoon Nth Ave 1169m2026-0201–0383 sqm$565
Blk 125 Serangoon Nth Ave 178m2026-0101–03150 sqm$550
Blk 145 Serangoon Nth Ave 197m2025-1201–0389 sqm$539
Blk 126 Serangoon Nth Ave 1128m2025-1201–0391 sqm$562
Blk 120 Serangoon Nth Ave 1173m2025-1210–1291 sqm$590

The 19 most recent are listed, out of 137 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 123 Serangoon Nth Ave 1, 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$924,000
Outstanding loan
CPF principal used
Years held
Agent fee %
Sale priceS$924,000
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$22,943
Cash in handS$518,641
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.