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Block 520 Serangoon North Avenue 4

Executive · Built 1992 · 66 years remaining lease MOP Cleared
Latest Sale
$1,080,000
Dec 2025 · EXECUTIVE · Floor 07-09
Median $/sqm
$4,818
Based on 21 transactions
Total Transactions
21
Since Jan 2017
5-Year Trend
▲ +42.9%
Median price change
Median Price ?
Top 18%
#41 / 227 Top 18%
Latest Sale ?
Top 7%
#16 / 227 Top 7%
Value ($/sqm) ?
Top 72%
#163 / 227 Top 72%
5-Year Growth ?
Top 27%
#40 / 150 Top 27%
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
+7.4%/yr
vs
Lease Decay
−0.40%/yr
Growth assumption
Based on this block’s +42.9% 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
Remaining lease
↓ 0.40%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 66 years remaining, decay is gradual (~0.40%/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
Dec 2025 07 TO 09 EXECUTIVE 147 sqm $1,080,000 $7,347
May 2025 04 TO 06 EXECUTIVE 147 sqm $1,058,000 $7,197
Feb 2025 07 TO 09 EXECUTIVE 149 sqm $1,060,000 $7,114
Sep 2024 01 TO 03 EXECUTIVE 147 sqm $880,000 $5,986
Jun 2024 04 TO 06 EXECUTIVE 147 sqm $938,000 $6,381
Apr 2024 04 TO 06 EXECUTIVE 147 sqm $948,000 $6,449
Aug 2023 01 TO 03 EXECUTIVE 149 sqm $840,000 $5,638
Jul 2023 04 TO 06 EXECUTIVE 156 sqm $950,000 $6,090
Jun 2022 04 TO 06 EXECUTIVE 147 sqm $910,000 $6,190
Feb 2021 04 TO 06 EXECUTIVE 154 sqm $742,000 $4,818
Aug 2020 04 TO 06 EXECUTIVE 149 sqm $710,000 $4,765
Aug 2019 04 TO 06 EXECUTIVE 147 sqm $660,000 $4,490
Jun 2019 01 TO 03 EXECUTIVE 156 sqm $668,000 $4,282
Jun 2019 04 TO 06 EXECUTIVE 147 sqm $688,000 $4,680
Apr 2019 07 TO 09 EXECUTIVE 147 sqm $660,000 $4,490
Dec 2018 01 TO 03 EXECUTIVE 149 sqm $634,000 $4,255
Nov 2018 07 TO 09 EXECUTIVE 156 sqm $718,000 $4,603
Sep 2018 04 TO 06 EXECUTIVE 149 sqm $657,000 $4,409
Aug 2018 04 TO 06 EXECUTIVE 147 sqm $655,000 $4,456
Oct 2017 07 TO 09 EXECUTIVE 147 sqm $720,000 $4,898
Showing 20 of 21 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 520 Serangoon North Avenue 4

Block 520 at Serangoon North Avenue 4 is a residential HDB block in Serangoon, Singapore, built in 1992 with approximately 66 years remaining on its 99-year lease. The block contains executive flats, with resale prices ranging from $634,000 to $1,080,000 based on 21 recorded transactions since January 2017. The most recent transaction was a executive flat on storeys 07 TO 09 sold for $1,080,000 in 2025-12. The current median price per square metre is $4,818. Over the past five years, resale prices at this block have increased by approximately 42.9%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8967, with an annual lease decay rate of approximately 0.40%. 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 520 Serangoon North Avenue 4 worth?

The most recent resale transaction at Block 520 Serangoon North Avenue 4 was $1,080,000 for a executive flat in 2025-12. The median price per square metre across all flat types is $4,818, based on 21 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 520 Serangoon North Avenue 4?

Block 520 Serangoon North Avenue 4 was built in 1992 and has approximately 66 years remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.40%, meaning the leasehold value decreases by approximately 0.40% per year at the current remaining lease.

What flat types are available at Block 520 Serangoon North Avenue 4?

Block 520 Serangoon North Avenue 4 in Serangoon contains executive flats. Resale prices range from $634,000 to $1,080,000 based on historical transaction records from data.gov.sg.

Have HDB prices at Block 520 Serangoon North Avenue 4 gone up or down?

Resale prices at Block 520 Serangoon North Avenue 4 have increased by approximately 42.9% over the past five years. The current median price is $720,000, with the most recent sale at $1,080,000 in 2025-12.

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