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Block 21 Hougang Avenue 3

3 Room · 4 Room · Built 1978 · 51 years remaining lease MOP Cleared
Latest Sale
$505,000
Sep 2025 · 4 ROOM · Floor 01-03
Median $/sqm
$4,130
Based on 26 transactions
Total Transactions
26
Since Jan 2017
5-Year Trend
--
Insufficient data
Median Price ?
Top 95%
#549 / 579 Top 95%
Latest Sale ?
Top 78%
#453 / 579 Top 78%
Value ($/sqm) ?
Top 90%
#522 / 579 Top 90%
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
−0.71%/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 51 years remaining 99 years
51 years 9 months
Remaining lease
↓ 0.71%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 51 years remaining, decay is gradual (~0.71%/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
Sep 2025 01 TO 03 4 ROOM 98 sqm $505,000 $5,153
Jun 2025 04 TO 06 4 ROOM 98 sqm $519,000 $5,296
Feb 2025 04 TO 06 4 ROOM 98 sqm $500,888 $5,111
Apr 2024 07 TO 09 3 ROOM 73 sqm $380,000 $5,205
Aug 2023 04 TO 06 3 ROOM 88 sqm $435,228 $4,946
Jun 2023 10 TO 12 3 ROOM 73 sqm $378,000 $5,178
Apr 2023 10 TO 12 3 ROOM 73 sqm $358,000 $4,904
Feb 2023 01 TO 03 3 ROOM 73 sqm $358,888 $4,916
Feb 2023 10 TO 12 3 ROOM 73 sqm $360,000 $4,932
Nov 2022 07 TO 09 3 ROOM 73 sqm $400,000 $5,479
Apr 2022 04 TO 06 3 ROOM 73 sqm $340,000 $4,658
Dec 2021 01 TO 03 3 ROOM 73 sqm $318,000 $4,356
Aug 2020 01 TO 03 3 ROOM 73 sqm $295,000 $4,041
Sep 2019 07 TO 09 3 ROOM 88 sqm $315,000 $3,580
Apr 2019 01 TO 03 4 ROOM 98 sqm $330,000 $3,367
Jan 2019 01 TO 03 3 ROOM 73 sqm $290,000 $3,973
May 2018 10 TO 12 3 ROOM 73 sqm $290,000 $3,973
Jan 2018 01 TO 03 3 ROOM 73 sqm $262,500 $3,596
Dec 2017 01 TO 03 3 ROOM 73 sqm $267,000 $3,658
Dec 2017 04 TO 06 3 ROOM 73 sqm $275,000 $3,767
Showing 20 of 26 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 21 Hougang Avenue 3

Block 21 at Hougang Avenue 3 is a residential HDB block in Hougang, Singapore, built in 1978 with approximately 51 years remaining on its 99-year lease. The block contains 3 room, 4 room flats, with resale prices ranging from $262,500 to $519,000 based on 26 recorded transactions since January 2017. The most recent transaction was a 4 room flat on storeys 01 TO 03 sold for $505,000 in 2025-09. The current median price per square metre is $4,130. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8314, with an annual lease decay rate of approximately 0.71%. 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 21 Hougang Avenue 3 worth?

The most recent resale transaction at Block 21 Hougang Avenue 3 was $505,000 for a 4 room flat in 2025-09. The median price per square metre across all flat types is $4,130, based on 26 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 21 Hougang Avenue 3?

Block 21 Hougang Avenue 3 was built in 1978 and has approximately 51 years and 9 months remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.71%, meaning the leasehold value decreases by approximately 0.71% per year at the current remaining lease.

What flat types are available at Block 21 Hougang Avenue 3?

Block 21 Hougang Avenue 3 in Hougang contains 3 room, 4 room flats. Resale prices range from $262,500 to $519,000 based on historical transaction records from data.gov.sg.

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