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Serangoon · HDB · S550509

Blk 509 Serangoon Nth Ave 4

Completed 1996 · 8 storeys · 87 flats · 70 years 06 months remaining · 19 resale transactions on record · median household income in Serangoon: $11,500/mo

4 room
$634,944
4 sold · $610,000$660,000
$581 psf
Vs Serangoon
-11.3%
block PSF vs town median · last sale Jan 2026
3D →
Serangoon Nth Ave 4, Serangoon · 1 km P1 ring · mrt · school · food · park · mall · health · zones: parks, commercial, reserve - hover
Flat mix · 87 homes
4-room
66 · 76%
5-room
21 · 24%

8 storeys · completed 1996 · shops below

What the record shows

The lease cliff

This block crosses 60 years remaining in 2036 - the line where CPF usage rules begin tightening for buyers. In Serangoon over the last two years, flats below that line sold at a median 1% above their younger neighbours' PSF (481 sales).

Rent check

What flats in this block actually rented for in the last 12 months - official approvals, not listings. If you’re quoted much more, you have a number to negotiate with.

TypeBlock medianRangeSerangoon medianGross yieldRented
4-ROOM$3,400/mo$3,250$3,400$3,400/mo-3

Price trend

median PSF by year · ━ this block · ╌ Serangoon · gaps = years with no sales here

$357$517$678201720182020202220242026

Every recent sale HDB official record, latest 19

MonthTypeStoreyArea (sqm)PricePSFLease left
Jan 20264 ROOM04 to 06101$660,000$60770y 06m
Nov 20254 ROOM04 to 06101$610,000$56170y 08m
Jul 20254 ROOM01 to 03101$623,000$57371y
Jun 20254 ROOM07 to 09102$646,888$58971y 01m
Apr 20245 ROOM04 to 06120$690,000$53472y 03m
Apr 20244 ROOM04 to 06101$600,000$55272y 03m
Jan 20234 ROOM04 to 06102$520,000$47473y 07m
Dec 20224 ROOM04 to 06102$520,000$47473y 08m
Jan 20215 ROOM04 to 06120$535,000$41475y 05m
Mar 20204 ROOM01 to 03102$380,000$34676y 04m
Jan 20205 ROOM04 to 06119$540,000$42276y 05m
Mar 20194 ROOM04 to 06101$400,000$36877y 03m
Nov 20184 ROOM01 to 03102$378,000$34477y 07m
Aug 20185 ROOM01 to 03120$525,000$40677y 10m
Aug 20185 ROOM01 to 03120$476,000$36977y 10m
Apr 20185 ROOM04 to 06120$520,000$40378y 03m
Mar 20184 ROOM04 to 06102$403,000$36778y 04m
Sept 20175 ROOM07 to 09120$510,000$39578y 09m
Jul 20174 ROOM01 to 03101$375,000$34578y 11m

Who lives in Serangoon

Census of Population 2020 · planning-area aggregates · SingStat via data.gov.sg

Residents
116,900
Median age
45 yrs
44% under 40 · getting older
Children 0–9
7,930
▼ 13% since 2015 · future P1 demand
Household size
3.4 avg
Homes
55% HDB
14% condo · 31% landed
Degree holders
40%
residents 15+
Commute
54% transit
30% drive
45 min+ to work
23%

The neighbourhood

What sits around this address - distances computed from official OneMap and LTA records.

MRT
Kovan NE13 · 1.6km - weekday mornings, riders head to Raffles Place, Downtown, Harbourfront (LTA)
Coming MRT
Serangoon North Mrt Station · CRL · ~2030 · 340m - a new line changes what nearby homes are worth
P1 ring
Rosyth School 190m · Phase 2C 3.1× balloted · Xinmin Primary School 738m · Phase 2C 1.6× balloted · Hougang Primary School 797m · Phase 2C 1.2× - inside the 1km priority ring; Phase 2C demand is last year’s applicants ÷ vacancies (MOE)
Secondary
Bowen Secondary School · 236m
Food
Ci Yuan Hawker Centre · 843m
Green
Pk Villas Terrace Pg · 539m - 5 parks within 1km
Mall
Hougang Green Shopping Mall · 1.5km
Health
National Healthcare Group Polyclinics (Hougang Polyclinic) (polyclinic) · 1.4km

Around this block

The nearest blocks by actual distance - street names are postal artifacts, so true neighbours often sit on a different road. Price gaps are median-vs-median on the flat type both blocks actually trade.

Condos nearby

The private premium, measured: the nearest condo trades at 3.3×this block’s PSF.

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Ask anything about this block

Grounded in this block’s own resale record, trend and lease - ask away.

Sign in with Google to ask · AI-generated from this page’s data - may be inaccurate. Not financial advice.
Data: HDB resale transactions via data.gov.sg (updated weekly), OneMap. Prices are the official resale record - not estimates, not listings.
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Data: URA, HDB & SingStat (via data.gov.sg), OneMap © SLA, LTA DataMall, MOE - used under the Singapore Open Data Licence.