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Block 405 Serangoon Avenue 1

4 Room · 5 Room · Built 1989 · 62 years remaining lease MOP Cleared
Latest Sale
$990,000
May 2025 · 5 ROOM · Floor 04-06
Median $/sqm
$6,374
Based on 16 transactions
Total Transactions
16
Since Jan 2017
5-Year Trend
--
Insufficient data
Median Price ?
Top 19%
#43 / 227 Top 19%
Latest Sale ?
Top 12%
#27 / 227 Top 12%
Value ($/sqm) ?
Top 16%
#37 / 227 Top 16%
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
+3%/yr
vs
Lease Decay
−0.46%/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 62 years remaining 99 years
62 years 10 months
Remaining lease
↓ 0.46%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 62 years remaining, decay is gradual (~0.46%/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
May 2025 04 TO 06 5 ROOM 123 sqm $990,000 $8,049
Oct 2024 04 TO 06 4 ROOM 94 sqm $708,000 $7,532
Sep 2024 07 TO 09 5 ROOM 121 sqm $975,000 $8,058
Jul 2024 04 TO 06 4 ROOM 103 sqm $822,888 $7,989
Jun 2024 01 TO 03 5 ROOM 121 sqm $790,000 $6,529
May 2024 04 TO 06 4 ROOM 94 sqm $718,000 $7,638
Feb 2024 10 TO 12 4 ROOM 111 sqm $848,666 $7,646
Mar 2023 01 TO 03 4 ROOM 111 sqm $670,000 $6,036
Jan 2023 01 TO 03 5 ROOM 123 sqm $765,000 $6,220
Jun 2022 10 TO 12 4 ROOM 113 sqm $739,888 $6,548
May 2021 04 TO 06 4 ROOM 111 sqm $623,888 $5,621
Oct 2020 10 TO 12 5 ROOM 123 sqm $715,000 $5,813
Aug 2019 10 TO 12 4 ROOM 103 sqm $540,000 $5,243
Aug 2019 07 TO 09 4 ROOM 113 sqm $560,000 $4,956
Mar 2019 04 TO 06 4 ROOM 103 sqm $470,000 $4,563
Feb 2018 04 TO 06 4 ROOM 111 sqm $632,000 $5,694
Showing 16 of 16 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 405 Serangoon Avenue 1

Block 405 at Serangoon Avenue 1 is a residential HDB block in Serangoon, Singapore, built in 1989 with approximately 62 years remaining on its 99-year lease. The block contains 4 room, 5 room flats, with resale prices ranging from $470,000 to $990,000 based on 16 recorded transactions since January 2017. The most recent transaction was a 5 room flat on storeys 04 TO 06 sold for $990,000 in 2025-05. The current median price per square metre is $6,374. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8849, with an annual lease decay rate of approximately 0.46%. 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 405 Serangoon Avenue 1 worth?

The most recent resale transaction at Block 405 Serangoon Avenue 1 was $990,000 for a 5 room flat in 2025-05. The median price per square metre across all flat types is $6,374, based on 16 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 405 Serangoon Avenue 1?

Block 405 Serangoon Avenue 1 was built in 1989 and has approximately 62 years and 10 months remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.46%, meaning the leasehold value decreases by approximately 0.46% per year at the current remaining lease.

What flat types are available at Block 405 Serangoon Avenue 1?

Block 405 Serangoon Avenue 1 in Serangoon contains 4 room, 5 room flats. Resale prices range from $470,000 to $990,000 based on historical transaction records from data.gov.sg.

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