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Block 423 Clementi Avenue 1

2 Room · 3 Room · 4 Room · Built 2013 · 86 years remaining lease MOP Cleared
Latest Sale
$458,000
Mar 2026 · 2 ROOM · Floor 04-06
Median $/sqm
$7,451
Based on 50 transactions
Total Transactions
50
Since Jan 2017
5-Year Trend
▲ +35.8%
Median price change
Median Price ?
Top 39%
#73 / 185 Top 39%
Latest Sale ?
Top 71%
#131 / 185 Top 71%
Value ($/sqm) ?
Top 16%
#30 / 185 Top 16%
5-Year Growth ?
Top 14%
#21 / 146 Top 14%
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
+6.3%/yr
vs
Lease Decay
−0.19%/yr
Growth assumption
Based on this block’s +35.8% 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 86 years remaining 99 years
86 years 7 months
Remaining lease
↓ 0.19%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 86 years remaining, decay is gradual (~0.19%/yr). It accelerates significantly below 40 years. Market appreciation (historically 2-4%/yr) currently outpaces lease decay for this block.
All Transactions
Date Floor Type Area Price $/sqm
Mar 2026 04 TO 06 2 ROOM 49 sqm $458,000 $9,347
Jul 2025 25 TO 27 2 ROOM 49 sqm $475,000 $9,694
Jul 2025 07 TO 09 2 ROOM 49 sqm $423,000 $8,633
Feb 2025 16 TO 18 4 ROOM 100 sqm $979,000 $9,790
Jan 2025 10 TO 12 4 ROOM 99 sqm $931,888 $9,413
Sep 2024 07 TO 09 3 ROOM 70 sqm $680,000 $9,714
Jul 2024 25 TO 27 2 ROOM 49 sqm $422,000 $8,612
Jun 2024 22 TO 24 2 ROOM 49 sqm $475,000 $9,694
Dec 2023 04 TO 06 3 ROOM 70 sqm $575,000 $8,214
Nov 2023 13 TO 15 3 ROOM 70 sqm $615,000 $8,786
Jan 2023 07 TO 09 4 ROOM 100 sqm $805,000 $8,050
Jan 2023 04 TO 06 4 ROOM 99 sqm $825,000 $8,333
Dec 2022 10 TO 12 2 ROOM 49 sqm $380,000 $7,755
Aug 2022 19 TO 21 2 ROOM 50 sqm $391,888 $7,838
Aug 2022 22 TO 24 2 ROOM 50 sqm $398,000 $7,960
May 2022 22 TO 24 4 ROOM 100 sqm $812,000 $8,120
Jan 2022 04 TO 06 2 ROOM 49 sqm $346,000 $7,061
Jan 2022 13 TO 15 3 ROOM 75 sqm $560,000 $7,467
Oct 2021 13 TO 15 4 ROOM 100 sqm $760,000 $7,600
Sep 2021 16 TO 18 2 ROOM 49 sqm $340,000 $6,939
Showing 20 of 50 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 423 Clementi Avenue 1

Block 423 at Clementi Avenue 1 is a residential HDB block in Clementi, Singapore, built in 2013 with approximately 86 years remaining on its 99-year lease. The block contains 2 room, 3 room, 4 room flats, with resale prices ranging from $306,000 to $979,000 based on 50 recorded transactions since January 2017. The most recent transaction was a 2 room flat on storeys 04 TO 06 sold for $458,000 in 2026-03. The current median price per square metre is $7,451. Over the past five years, resale prices at this block have increased by approximately 35.8%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.9491, with an annual lease decay rate of approximately 0.19%. 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 423 Clementi Avenue 1 worth?

The most recent resale transaction at Block 423 Clementi Avenue 1 was $458,000 for a 2 room flat in 2026-03. The median price per square metre across all flat types is $7,451, based on 50 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 423 Clementi Avenue 1?

Block 423 Clementi Avenue 1 was built in 2013 and has approximately 86 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 0.19%, meaning the leasehold value decreases by approximately 0.19% per year at the current remaining lease.

What flat types are available at Block 423 Clementi Avenue 1?

Block 423 Clementi Avenue 1 in Clementi contains 2 room, 3 room, 4 room flats. Resale prices range from $306,000 to $979,000 based on historical transaction records from data.gov.sg.

Have HDB prices at Block 423 Clementi Avenue 1 gone up or down?

Resale prices at Block 423 Clementi Avenue 1 have increased by approximately 35.8% over the past five years. The current median price is $536,500, with the most recent sale at $458,000 in 2026-03.

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