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Block 631 Ang Mo Kio Avenue 4

3 Room · 4 Room · 5 Room · Built 1985 · 57 years remaining lease MOP Cleared
Latest Sale
$440,000
Mar 2026 · 3 ROOM · Floor 10-12
Median $/sqm
$4,664
Based on 46 transactions
Total Transactions
46
Since Jan 2017
5-Year Trend
▲ +31.7%
Median price change
Median Price ?
Top 80%
#292 / 363 Top 80%
Latest Sale ?
Top 68%
#246 / 363 Top 68%
Value ($/sqm) ?
Top 74%
#269 / 363 Top 74%
5-Year Growth ?
Top 55%
#152 / 274 Top 55%
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
+5.7%/yr
vs
Lease Decay
−0.55%/yr
Growth assumption
Based on this block’s +31.7% 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 57 years remaining 99 years
57 years 11 months
Remaining lease
↓ 0.55%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 57 years remaining, decay is gradual (~0.55%/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 10 TO 12 3 ROOM 67 sqm $440,000 $6,567
Mar 2026 04 TO 06 3 ROOM 67 sqm $440,000 $6,567
Mar 2026 07 TO 09 3 ROOM 67 sqm $423,000 $6,313
Dec 2025 07 TO 09 3 ROOM 67 sqm $428,000 $6,388
Dec 2025 10 TO 12 3 ROOM 67 sqm $408,000 $6,090
Oct 2025 04 TO 06 3 ROOM 67 sqm $427,000 $6,373
Oct 2025 07 TO 09 3 ROOM 67 sqm $468,000 $6,985
Sep 2025 01 TO 03 3 ROOM 67 sqm $398,000 $5,940
Apr 2025 10 TO 12 3 ROOM 67 sqm $468,000 $6,985
Apr 2025 07 TO 09 3 ROOM 67 sqm $420,000 $6,269
Mar 2025 04 TO 06 3 ROOM 67 sqm $452,888 $6,760
Dec 2024 07 TO 09 3 ROOM 82 sqm $477,000 $5,817
Feb 2024 04 TO 06 4 ROOM 93 sqm $500,000 $5,376
Sep 2023 10 TO 12 5 ROOM 134 sqm $830,000 $6,194
Aug 2023 10 TO 12 3 ROOM 67 sqm $380,000 $5,672
Nov 2022 01 TO 03 3 ROOM 67 sqm $342,000 $5,104
Oct 2022 10 TO 12 3 ROOM 67 sqm $395,000 $5,896
Feb 2022 07 TO 09 3 ROOM 67 sqm $375,000 $5,597
Jan 2022 10 TO 12 3 ROOM 67 sqm $341,888 $5,103
Nov 2021 01 TO 03 4 ROOM 93 sqm $385,000 $4,140
Showing 20 of 46 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 631 Ang Mo Kio Avenue 4

Block 631 at Ang Mo Kio Avenue 4 is a residential HDB block in Ang Mo Kio, Singapore, built in 1985 with approximately 57 years remaining on its 99-year lease. The block contains 3 room, 4 room, 5 room flats, with resale prices ranging from $253,000 to $830,000 based on 46 recorded transactions since January 2017. The most recent transaction was a 3 room flat on storeys 10 TO 12 sold for $440,000 in 2026-03. The current median price per square metre is $4,664. Over the past five years, resale prices at this block have increased by approximately 31.7%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8636, with an annual lease decay rate of approximately 0.55%. 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 631 Ang Mo Kio Avenue 4 worth?

The most recent resale transaction at Block 631 Ang Mo Kio Avenue 4 was $440,000 for a 3 room flat in 2026-03. The median price per square metre across all flat types is $4,664, based on 46 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 631 Ang Mo Kio Avenue 4?

Block 631 Ang Mo Kio Avenue 4 was built in 1985 and has approximately 57 years and 11 months remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.55%, meaning the leasehold value decreases by approximately 0.55% per year at the current remaining lease.

What flat types are available at Block 631 Ang Mo Kio Avenue 4?

Block 631 Ang Mo Kio Avenue 4 in Ang Mo Kio contains 3 room, 4 room, 5 room flats. Resale prices range from $253,000 to $830,000 based on historical transaction records from data.gov.sg.

Have HDB prices at Block 631 Ang Mo Kio Avenue 4 gone up or down?

Resale prices at Block 631 Ang Mo Kio Avenue 4 have increased by approximately 31.7% over the past five years. The current median price is $341,944, with the most recent sale at $440,000 in 2026-03.

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