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Block 401 Serangoon Avenue 1

4 Room · 5 Room · Built 1989 · 62 years remaining lease MOP Cleared
Latest Sale
$852,500
Mar 2026 · 4 ROOM · Floor 04-06
Median $/sqm
$5,976
Based on 26 transactions
Total Transactions
26
Since Jan 2017
5-Year Trend
▲ +42.1%
Median price change
Median Price ?
Top 31%
#70 / 227 Top 31%
Latest Sale ?
Top 25%
#56 / 227 Top 25%
Value ($/sqm) ?
Top 33%
#75 / 227 Top 33%
5-Year Growth ?
Top 29%
#43 / 150 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
+7.3%/yr
vs
Lease Decay
−0.47%/yr
Growth assumption
Based on this block’s +42.1% 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 62 years remaining 99 years
62 years
Remaining lease
↓ 0.47%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 62 years remaining, decay is gradual (~0.47%/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 4 ROOM 105 sqm $852,500 $8,119
Sep 2025 04 TO 06 4 ROOM 103 sqm $790,000 $7,670
Jul 2025 10 TO 12 4 ROOM 109 sqm $855,000 $7,844
Feb 2025 01 TO 03 4 ROOM 105 sqm $795,888 $7,580
Jan 2024 04 TO 06 5 ROOM 121 sqm $862,000 $7,124
Dec 2023 10 TO 12 4 ROOM 93 sqm $678,000 $7,290
Nov 2023 01 TO 03 4 ROOM 109 sqm $750,000 $6,881
May 2022 07 TO 09 4 ROOM 109 sqm $670,000 $6,147
Jun 2021 04 TO 06 4 ROOM 93 sqm $560,000 $6,022
May 2021 07 TO 09 4 ROOM 109 sqm $632,000 $5,798
Jan 2021 04 TO 06 4 ROOM 105 sqm $580,000 $5,524
Oct 2020 04 TO 06 4 ROOM 105 sqm $598,000 $5,695
Jun 2020 04 TO 06 4 ROOM 93 sqm $515,000 $5,538
Jan 2020 07 TO 09 4 ROOM 105 sqm $630,000 $6,000
Apr 2019 07 TO 09 4 ROOM 103 sqm $560,000 $5,437
Apr 2019 04 TO 06 4 ROOM 103 sqm $612,000 $5,942
Mar 2019 01 TO 03 4 ROOM 105 sqm $575,000 $5,476
Mar 2019 10 TO 12 5 ROOM 121 sqm $755,000 $6,240
Feb 2019 07 TO 09 5 ROOM 121 sqm $745,000 $6,157
Jun 2018 01 TO 03 4 ROOM 105 sqm $508,000 $4,838
Showing 20 of 26 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 401 Serangoon Avenue 1

Block 401 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 $508,000 to $862,000 based on 26 recorded transactions since January 2017. The most recent transaction was a 4 room flat on storeys 04 TO 06 sold for $852,500 in 2026-03. The current median price per square metre is $5,976. Over the past five years, resale prices at this block have increased by approximately 42.1%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8815, with an annual lease decay rate of approximately 0.47%. 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 401 Serangoon Avenue 1 worth?

The most recent resale transaction at Block 401 Serangoon Avenue 1 was $852,500 for a 4 room flat in 2026-03. The median price per square metre across all flat types is $5,976, based on 26 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 401 Serangoon Avenue 1?

Block 401 Serangoon Avenue 1 was built in 1989 and has approximately 62 years remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.47%, meaning the leasehold value decreases by approximately 0.47% per year at the current remaining lease.

What flat types are available at Block 401 Serangoon Avenue 1?

Block 401 Serangoon Avenue 1 in Serangoon contains 4 room, 5 room flats. Resale prices range from $508,000 to $862,000 based on historical transaction records from data.gov.sg.

Have HDB prices at Block 401 Serangoon Avenue 1 gone up or down?

Resale prices at Block 401 Serangoon Avenue 1 have increased by approximately 42.1% over the past five years. The current median price is $641,000, with the most recent sale at $852,500 in 2026-03.

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