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Block 420 Choa Chu Kang Avenue 4

Executive · Built 1993 · 66 years remaining lease · Updated Dec 2025 MOP Cleared

Block 420 Choa Chu Kang Avenue 4 has 13 recorded HDB resale transactions since 2017. Latest sale: $925,000 (Dec 2025, executive, floors 16–18). Median $4,480/sqm. Prices up 35% over the past five years. Built 1993, 66 years lease remaining.

Latest Sale
$925,000
Dec 2025 · EXECUTIVE · Floor 16-18
Median $/sqm
$4,480
Based on 13 transactions
Total Transactions
13
Since Jan 2017
5-Year Trend
▲ +35%
Median price change
Median Price ?
Top 5%
#27 / 518 Top 5%
Latest Sale ?
Top 1%
#3 / 518 Top 1%
Value ($/sqm) ?
Top 38%
#195 / 518 Top 38%
5-Year Growth ?
Top 29%
#105 / 364 Top 29%
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
--
Future Value Projection
Market Appreciation
+6.2%/yr
vs
Lease Decay
−0.39%/yr
Growth assumption
Based on this block’s +35% growth over 5 years
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 66 years remaining 99 years
66 years 7 months
Remaining lease
↓ 0.39%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 66 years remaining, decay is gradual (~0.39%/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
Executive $3,500 typically $3,200–$3,800 5.1% 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 2 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.
All Transactions
Date Floor Type Area Price $/sqm
Dec 2025 16 TO 18 EXECUTIVE 150 sqm $925,000 $6,167
Oct 2025 13 TO 15 EXECUTIVE 148 sqm $865,000 $5,845
Nov 2023 10 TO 12 EXECUTIVE 148 sqm $793,888 $5,364
Jul 2023 07 TO 09 EXECUTIVE 148 sqm $770,000 $5,203
May 2022 16 TO 18 EXECUTIVE 148 sqm $722,888 $4,884
Jan 2022 10 TO 12 EXECUTIVE 150 sqm $708,000 $4,720
Nov 2021 10 TO 12 EXECUTIVE 148 sqm $663,000 $4,480
Mar 2020 01 TO 03 EXECUTIVE 150 sqm $495,000 $3,300
Dec 2019 10 TO 12 EXECUTIVE 143 sqm $550,000 $3,846
Jul 2019 07 TO 09 EXECUTIVE 143 sqm $535,000 $3,741
Jul 2019 10 TO 12 EXECUTIVE 150 sqm $550,000 $3,667
Jul 2018 01 TO 03 EXECUTIVE 143 sqm $480,000 $3,357
Sep 2017 01 TO 03 EXECUTIVE 150 sqm $530,000 $3,533
Showing 13 of 13 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 420 Choa Chu Kang Avenue 4

Block 420 at Choa Chu Kang Avenue 4 is a residential HDB block in Choa Chu Kang, Singapore, built in 1993 with approximately 66 years remaining on its 99-year lease. The block contains executive flats, with resale prices ranging from $480,000 to $925,000 based on 13 recorded transactions since January 2017. The most recent transaction was a executive flat on storeys 16 TO 18 sold for $925,000 in 2025-12. The current median price per square metre is $4,480. Over the past five years, resale prices at this block have increased by approximately 35%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8988, with an annual lease decay rate of approximately 0.39%. All transaction data is sourced from Singapore's data.gov.sg open data platform and is updated monthly.

Frequently Asked Questions

How much is an HDB flat at Block 420 Choa Chu Kang Avenue 4 worth?

The most recent resale transaction at Block 420 Choa Chu Kang Avenue 4 was $925,000 for a executive flat in 2025-12. The median price per square metre across all flat types is $4,480, based on 13 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 420 Choa Chu Kang Avenue 4?

Block 420 Choa Chu Kang Avenue 4 was built in 1993 and has approximately 66 years and 7 months remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.39%, meaning the leasehold value decreases by approximately 0.39% per year at the current remaining lease.

What flat types are available at Block 420 Choa Chu Kang Avenue 4?

Block 420 Choa Chu Kang Avenue 4 in Choa Chu Kang contains executive flats. Resale prices range from $480,000 to $925,000 based on historical transaction records from data.gov.sg.

Have HDB prices at Block 420 Choa Chu Kang Avenue 4 gone up or down?

Resale prices at Block 420 Choa Chu Kang Avenue 4 have increased by approximately 35% over the past five years. The current median price is $663,000, with the most recent sale at $925,000 in 2025-12.

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