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Block 631 Choa Chu Kang North 6

4 Room · Executive · Built 1998 · 71 years remaining lease · Updated Sep 2025 MOP Cleared

Block 631 Choa Chu Kang North 6 has 18 recorded HDB resale transactions since 2017. Latest sale: $690,000 (Sep 2025, 4 room, floors 04–06). Median $4,942/sqm. Built 1998, 71 years lease remaining.

How this block compares

  • 4 Room$670,000
    +20.1%vs town(+$112k)+6.3%vs national(+$40k)

Median of resales in the 12 months to Jul 2026, compared with town and Singapore medians on the same basis. Flat types with fewer than two sales in the window are omitted.

Latest Sale
$690,000
Sep 2025 · 4 ROOM · Floor 04-06
Median $/sqm
$4,942
Based on 18 transactions
Total Transactions
18
Since Jan 2017
5-Year Trend
--
Insufficient data
Median Price ?
Top 14%
#73 / 518 Top 14%
Latest Sale ?
Top 24%
#126 / 518 Top 24%
Value ($/sqm) ?
Top 18%
#92 / 518 Top 18%
Price Trend
Source: HDB Resale Flat Prices, data.gov.sg. Updated monthly.
What's Your Unit Worth?
HDB records transactions in 3-storey bands (e.g. 01 TO 03). Pick the band closest to your floor.
Estimated Market Value
--
How we estimate this →
Future Value Projection
Market Appreciation
+3%/yr
vs
Lease Decay
−0.33%/yr
Growth assumption
Using default rate (insufficient transaction history for this block)
Estimated value in --
--
Market appreciation --
Lease decay --
Net effect --
Projection uses Bala's Table (SLA leasehold model) for lease decay and your selected growth rate for appreciation. Lease decay is non-linear and accelerates as remaining lease shortens. Past growth does not guarantee future performance. Not financial advice.
Lease Decay Projection
0 years 71 years remaining 99 years
71 years 5 months
Remaining lease
↓ 0.33%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 71 years remaining, decay is gradual (~0.33%/yr). It accelerates significantly below 40 years. Market appreciation (historically 2-4%/yr) currently outpaces lease decay for this block.
Rental & Yield

What this block rents for, and the gross rental yield (annual rent ÷ resale price). This block has too few rentals on record, so figures shown are the Choa Chu Kang average.

Flat type Median rent /mo Gross yield Based on
4-Room $3,100 typically $2,900–$3,300 6.7% Choa Chu Kang avg · block too thin
Executive $3,500 typically $3,200–$3,800 5% Choa Chu Kang avg · block too thin
Gross yield is annual rent before maintenance, property tax, and vacancy, so net return is lower. Renting out a whole HDB flat requires meeting the 5-year Minimum Occupation Period and HDB approval. Rents are owner-declared to HDB and unverified.
Source: HDB Renting Out of Flats, data.gov.sg (Singapore Open Data Licence).
Primary schools nearby

This block is inside the 1 km Primary 1 priority zone for 4 popular schools. When a school is oversubscribed, MOE ballots by home–school distance, and homes within 1 km are drawn first.

Compare homes near all 50 popular schools
Distances are straight-line estimates from this block, indicative only. MOE measures from its own school reference point, so confirm the exact distance before relying on it.
Where this home sits, and its schools
4 schools in the 1 km top-priority zone
  • This home
  • School within 1 km
  • School 1–2 km
  • 1km ring, top priority
  • 2km ring, next tier

Straight-line distances, the basis MOE uses for Home–School Distance priority. Tap a school to open it. Map © OneMap, SLA.

Nearby comparable homes

Other HDB blocks closest to Block 631 Choa Chu Kang North 6 in Choa Chu Kang, with their median resale price. Useful for comparing what a flat here costs against its immediate neighbours.

See all HDB blocks in Choa Chu Kang
Distances are straight-line estimates from this home, indicative only. Prices are medians of recorded resale transactions, not asking prices.
All Transactions
Date Floor Type Area Price $/sqm
Sep 2025 04 TO 06 4 ROOM 113 sqm $690,000 $6,106
Sep 2025 10 TO 12 4 ROOM 113 sqm $670,000 $5,929
Sep 2025 01 TO 03 4 ROOM 113 sqm $590,000 $5,221
Dec 2024 07 TO 09 4 ROOM 113 sqm $612,888 $5,424
Dec 2024 07 TO 09 4 ROOM 113 sqm $628,000 $5,558
May 2024 04 TO 06 4 ROOM 113 sqm $600,000 $5,310
May 2024 07 TO 09 EXECUTIVE 142 sqm $808,000 $5,690
Dec 2022 10 TO 12 4 ROOM 113 sqm $550,000 $4,867
Dec 2022 10 TO 12 4 ROOM 113 sqm $582,000 $5,150
Jul 2022 07 TO 09 4 ROOM 113 sqm $567,000 $5,018
Aug 2021 01 TO 03 EXECUTIVE 142 sqm $668,000 $4,704
Jan 2021 10 TO 12 EXECUTIVE 142 sqm $680,000 $4,789
Aug 2020 04 TO 06 4 ROOM 113 sqm $460,000 $4,071
Jul 2019 07 TO 09 4 ROOM 113 sqm $470,000 $4,159
Jun 2019 01 TO 03 4 ROOM 113 sqm $410,000 $3,628
Jun 2019 01 TO 03 4 ROOM 113 sqm $460,000 $4,071
Apr 2019 04 TO 06 4 ROOM 113 sqm $392,000 $3,469
Mar 2019 10 TO 12 EXECUTIVE 142 sqm $560,000 $3,944
Showing 18 of 18 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 631 Choa Chu Kang North 6

Block 631 Choa Chu Kang North 6 sits near the top of the Choa Chu Kang resale market, its $586,000 median dearer than roughly 86% of blocks in the town. It has a relatively light resale record, with 18 transactions since 2017 across 4 room, executive flats priced from $392,000 to $808,000. The most recent transaction was a 4 room flat on storeys 04 TO 06 at $690,000 in Sep 2025, and the median works out to $4,942/sqm. Higher floors carry a premium, with the 10 TO 12 band trading roughly 27% above the 01 TO 03 band. Under Bala's Table (the SLA leasehold valuation model), its leasehold relativity ratio is 0.9143, an annual lease decay of about 0.33%. All transaction data is sourced from data.gov.sg and updated monthly.

Frequently Asked Questions

How much is an HDB flat at Block 631 Choa Chu Kang North 6 worth?

The most recent resale transaction at Block 631 Choa Chu Kang North 6 was $690,000 for a 4 room flat in 2025-09. The median price per square metre across all flat types is $4,942, based on 18 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 631 Choa Chu Kang North 6?

Block 631 Choa Chu Kang North 6 was built in 1998 and has approximately 71 years and 5 months remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.33%, meaning the leasehold value decreases by approximately 0.33% per year at the current remaining lease.

What flat types are available at Block 631 Choa Chu Kang North 6?

Block 631 Choa Chu Kang North 6 in Choa Chu Kang contains 4 room, executive flats. Resale prices range from $392,000 to $808,000 based on historical transaction records from data.gov.sg.

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