PropKaki
HDBOCRSerangoon

Block 505 Serangoon Nth Ave 4

505 Serangoon Nth Ave 4, Singapore 550505

Reviewed by Nathan TangUpdated 21 June 2026Data through Dec 2024 (HDB)
Quick Summary

Block 505 Serangoon Nth Ave 4 is an HDB block in Serangoon, completed in 1992, with 76 dwelling units. 5-Room flats have recently resold around S$645k (124 sqm), from 72 resales on record. The lease has approximately 67 years remaining.

1

What are the key facts about Block 505 Serangoon Nth Ave 4?

Key Takeaway

Block 505 Serangoon Nth Ave 4 is an HDB block in Serangoon, completed in 1992, with 76 dwelling units.

Town
Serangoon
Planning area
Serangoon
Completed
1992
Storeys
14
Total units
76
Market segment
OCR
Median resale
S$645k
Last transacted
Dec 2024
Remaining lease
≈ 67 years
2

What are resale prices at Block 505 Serangoon Nth Ave 4?

Key Takeaway

5-Room flats have recently resold around S$645k (S$483 psf), from 72 resales on record (HDB caveat data).

Flat typeResalesMedian priceSizePSF
5-Room72S$645,000recent124 sqmS$483 psf

“Recent” medians use the latest transactions; for older blocks the all-time median spans 30+ years and understates today’s price. Source: HDB resale caveats, through Dec 2024.

3

What has recently sold at Block 505 Serangoon Nth Ave 4?

Key Takeaway

Block 505 Serangoon Nth Ave 4 has 72 recorded resales; the most recent transacted at S$770,000 in Dec 2024 (HDB caveat data).

DateFlat typeStoreySizePrice
Dec 20245-Room10 TO 12124 sqmS$770,000
Jul 20245-Room04 TO 06124 sqmS$745,000
Jan 20245-Room10 TO 12124 sqmS$710,000
Aug 20235-Room07 TO 09124 sqmS$738,000
Mar 20235-Room04 TO 06124 sqmS$688,000
Dec 20225-Room04 TO 06124 sqmS$645,000
Aug 20215-Room07 TO 09125 sqmS$650,000
Jun 20215-Room04 TO 06124 sqmS$565,000
Nov 20195-Room04 TO 06125 sqmS$485,000
Oct 20185-Room07 TO 09124 sqmS$523,000
Jul 20185-Room10 TO 12124 sqmS$515,000
Feb 20185-Room07 TO 09124 sqmS$530,000
4

What flat types are in Block 505 Serangoon Nth Ave 4?

Key Takeaway

Block 505 Serangoon Nth Ave 4 has 76 units, mostly 5-Room flats.

Unit stock by flat type, from the HDB property information dataset.

5-Room: 76
5

How far is Block 505 Serangoon Nth Ave 4 from MRT and schools?

Key Takeaway

7 schools are within 1 km, including 3 primary schools.

Schools nearby

Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.

  • Rosyth SchoolPrimary schoolwithin 1 km · P1 priority150 m
  • Bowen Secondary SchoolSecondary schoolwithin 1 km355 m
  • Hougang Primary SchoolPrimary schoolwithin 1 km · P1 priority680 m
  • Xinmin Secondary SchoolSecondary schoolwithin 1 km754 m
  • Xinmin Primary SchoolPrimary schoolwithin 1 km · P1 priority781 m
  • Hougang Secondary SchoolSecondary schoolwithin 1 km848 m
  • Serangoon Garden Secondary SchoolSecondary schoolwithin 1 km895 m
  • Yio Chu Kang Primary SchoolPrimary school1.2 km

Shops, food & parks

Mall: Hougang 1 · 447 mSupermarket: Ang Mo Supermarket Pte Ltd · 440 mHawker centre: Ci Yuan Hawker Centre · 772 mPark: Pk Villas Terrace Pg · 624 m

Straight-line distances from the block. Source: PropKaki amenities data.

6

What does it cost to buy a flat at Block 505 Serangoon Nth Ave 4?

Key Takeaway

Buying a flat at Block 505 Serangoon Nth Ave 4 (~S$645k) needs about S$5,142/mo in income and S$2,422/mo in repayments, after S$13,950 stamp duty and a S$161k downpayment.

Illustrative, for a buyer at the recent median resale price (S$645k) — 25% downpayment (bank-loan basis), 25-year loan at 3.5% p.a. Rates as of May 2026. Run it for your own profile →

Buyer's Stamp Duty

S$13,950

BSD, tiered

Downpayment (25%)

S$161k

cash + CPF

Monthly instalment

S$2,422/mo

25y @ 3.5%

Income required

S$5,142/mo

MSR/TDSR @ stress rate

First-time HDB buyers pay no Additional Buyer’s Stamp Duty (ABSD) and may qualify for CPF Housing Grants of up to S$80,000+, which lower the cash required — these are not included above. An HDB concessionary loan also allows a smaller downpayment.

7

Frequently asked questions about Block 505 Serangoon Nth Ave 4

What is the resale price at Block 505 Serangoon Nth Ave 4?

5-Room flats at Block 505 Serangoon Nth Ave 4 have recently resold around S$645k (124 sqm), based on HDB resale caveats. Resale prices vary by flat type, floor and remaining lease.

How many years are left on the lease at Block 505 Serangoon Nth Ave 4?

Block 505 Serangoon Nth Ave 4 has approximately 67 years left on its 99-year lease (completed 1992). This figure is taken from the most recent transacted flat.

How many units are in Block 505 Serangoon Nth Ave 4?

Block 505 Serangoon Nth Ave 4 has 76 dwelling units across up to 14 storeys, mostly 5 room flats.

Which primary schools are within 1 km of Block 505 Serangoon Nth Ave 4?

Rosyth School, Hougang Primary School, Xinmin Primary School are within 1 km of Block 505 Serangoon Nth Ave 4 — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.

Is Block 505 Serangoon Nth Ave 4 a good place to buy an HDB resale flat?

Block 505 Serangoon Nth Ave 4 sits in Serangoon, in the Serangoon planning area. Whether it suits you depends on your budget, the flat type, the remaining lease (≈67 years) and proximity to MRT and schools — all of which are summarised on this page from HDB resale data.

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