PropKaki
HDBOCRChoa Chu Kang

Block 509 Choa Chu Kang St 51

509 Choa Chu Kang St 51, Singapore 680509

Reviewed by Nathan TangUpdated 21 June 2026Data through Jan 2025 (HDB)
Quick Summary

Block 509 Choa Chu Kang St 51 is an HDB block in Choa Chu Kang, completed in 1993, with 54 dwelling units. 5-Room flats have recently resold around S$508k (132 sqm), from 45 resales on record. The lease has approximately 69 years remaining.

1

What are the key facts about Block 509 Choa Chu Kang St 51?

Key Takeaway

Block 509 Choa Chu Kang St 51 is an HDB block in Choa Chu Kang, completed in 1993, with 54 dwelling units.

Town
Choa Chu Kang
Planning area
Choa Chu Kang
Completed
1993
Storeys
14
Total units
54
Market segment
OCR
Median resale
S$508k
Last transacted
Jan 2025
Remaining lease
≈ 69 years
2

What are resale prices at Block 509 Choa Chu Kang St 51?

Key Takeaway

5-Room flats have recently resold around S$508k (S$358 psf), from 45 resales on record (HDB caveat data).

Flat typeResalesMedian priceSizePSF
5-Room45S$508,000recent133 sqmS$358 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 Jan 2025.

3

What has recently sold at Block 509 Choa Chu Kang St 51?

Key Takeaway

Block 509 Choa Chu Kang St 51 has 45 recorded resales; the most recent transacted at S$710,000 in Jan 2025 (HDB caveat data).

DateFlat typeStoreySizePrice
Jan 20255-Room13 TO 15137 sqmS$710,000
Oct 20225-Room04 TO 06136 sqmS$590,000
Feb 20225-Room04 TO 06131 sqmS$550,000
Feb 20225-Room01 TO 03132 sqmS$528,000
Nov 20215-Room13 TO 15133 sqmS$530,000
Aug 20185-Room04 TO 06131 sqmS$420,000
Nov 20155-Room04 TO 06131 sqmS$468,000
Jan 20155-Room13 TO 15133 sqmS$442,500
Sept 20145-Room04 TO 06136 sqmS$462,000
Jul 20135-Room10 TO 12131 sqmS$547,000
Nov 20125-Room01 TO 03132 sqmS$508,000
Sept 20105-Room04 TO 06131 sqmS$440,000
4

What flat types are in Block 509 Choa Chu Kang St 51?

Key Takeaway

Block 509 Choa Chu Kang St 51 has 54 units, mostly 5-Room flats.

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

5-Room: 54
5

How far is Block 509 Choa Chu Kang St 51 from MRT and schools?

Key Takeaway

The nearest MRT/LRT to Block 509 Choa Chu Kang St 51 is Choa Chu Kang LRT, about 471 m away (~7 min walk). 5 schools are within 1 km, including 3 primary schools.

Getting around

Schools nearby

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

  • Kranji Secondary SchoolSecondary schoolwithin 1 km239 m
  • Bukit Panjang Govt. High SchoolSecondary schoolwithin 1 km747 m
  • De La Salle SchoolPrimary schoolwithin 1 km · P1 priority762 m
  • South View Primary SchoolPrimary schoolwithin 1 km · P1 priority861 m
  • Kranji Primary SchoolPrimary schoolwithin 1 km · P1 priority873 m
  • Concord Primary SchoolPrimary school1.1 km
  • Chua Chu Kang Primary SchoolPrimary school1.1 km
  • Regent Secondary SchoolSecondary school1.2 km

Shops, food & parks

Mall: Lot One · 489 mSupermarket: NTUC Fairprice Co-operative Ltd · 474 mPark: Choa Chu Kang Pk · 611 m

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

6

What does it cost to buy a flat at Block 509 Choa Chu Kang St 51?

Key Takeaway

Buying a flat at Block 509 Choa Chu Kang St 51 (~S$508k) needs about S$4,050/mo in income and S$1,907/mo in repayments, after S$9,840 stamp duty and a S$127k downpayment.

Illustrative, for a buyer at the recent median resale price (S$508k) — 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$9,840

BSD, tiered

Downpayment (25%)

S$127k

cash + CPF

Monthly instalment

S$1,907/mo

25y @ 3.5%

Income required

S$4,050/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 509 Choa Chu Kang St 51

What is the resale price at Block 509 Choa Chu Kang St 51?

5-Room flats at Block 509 Choa Chu Kang St 51 have recently resold around S$508k (132 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 509 Choa Chu Kang St 51?

Block 509 Choa Chu Kang St 51 has approximately 69 years left on its 99-year lease (completed 1993). This figure is taken from the most recent transacted flat.

How many units are in Block 509 Choa Chu Kang St 51?

Block 509 Choa Chu Kang St 51 has 54 dwelling units across up to 14 storeys, mostly 5 room flats.

What is the nearest MRT to Block 509 Choa Chu Kang St 51?

The nearest MRT/LRT station to Block 509 Choa Chu Kang St 51 is Choa Chu Kang LRT, about 471 m away (~7 min walk).

Which primary schools are within 1 km of Block 509 Choa Chu Kang St 51?

De La Salle School, South View Primary School, Kranji Primary School are within 1 km of Block 509 Choa Chu Kang St 51 — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.

Is Block 509 Choa Chu Kang St 51 a good place to buy an HDB resale flat?

Block 509 Choa Chu Kang St 51 sits in Choa Chu Kang, in the Choa Chu Kang planning area. Whether it suits you depends on your budget, the flat type, the remaining lease (≈69 years) and proximity to MRT and schools — all of which are summarised on this page from HDB resale data.

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