Skip to content

Block 123 Hougang Avenue 1

3 Room · 4 Room · Built 1981 · 55 years remaining lease · Updated Sep 2025 MOP Cleared

Block 123 Hougang Avenue 1 has 20 recorded HDB resale transactions since 2017. Latest sale: $570,000 (Sep 2025, 4 room, floors 10–12). Median $5,027/sqm. Prices up 38% over the past five years. Built 1981, 55 years lease remaining.

Latest Sale
$570,000
Sep 2025 · 4 ROOM · Floor 10-12
Median $/sqm
$5,027
Based on 20 transactions
Total Transactions
20
Since Jan 2017
5-Year Trend
▲ +38%
Median price change
Median Price ?
Top 92%
#533 / 580 Top 92%
Latest Sale ?
Top 65%
#378 / 580 Top 65%
Value ($/sqm) ?
Top 39%
#228 / 580 Top 39%
5-Year Growth ?
Top 49%
#190 / 391 Top 49%
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
+6.7%/yr
vs
Lease Decay
−0.62%/yr
Growth assumption
Based on this block’s +38% 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 55 years remaining 99 years
55 years
Remaining lease
↓ 0.62%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 55 years remaining, decay is gradual (~0.62%/yr). It accelerates significantly below 40 years. Market appreciation (historically 2-4%/yr) currently outpaces lease decay for this block.
Rental & Yield

What this block rents for, and the gross rental yield (annual rent ÷ resale price). This block has too few rentals on record, so figures shown are the Hougang average.

Flat type Median rent /mo Gross yield Based on
3-Room $2,700 typically $2,500–$2,900 7.1% Hougang avg · block too thin
4-Room $3,200 typically $3,000–$3,500 6.1% Hougang avg · block too thin
Gross yield is annual rent before maintenance, property tax, and vacancy, so net return is lower. Renting out a whole HDB flat requires meeting the 5-year Minimum Occupation Period and HDB approval. Rents are owner-declared to HDB and unverified.
Source: HDB Renting Out of Flats, data.gov.sg (Singapore Open Data Licence).
Primary schools nearby

This block is inside the 1 km Primary 1 priority zone for 1 popular school. When a school is oversubscribed, MOE ballots by home–school distance, and homes within 1 km are drawn first.

Compare homes near all 50 popular schools
Distances are straight-line estimates from this block, indicative only. MOE measures from its own school reference point, so confirm the exact distance before relying on it.
All Transactions
Date Floor Type Area Price $/sqm
Sep 2025 10 TO 12 4 ROOM 91 sqm $570,000 $6,264
May 2025 04 TO 06 3 ROOM 82 sqm $480,888 $5,864
Sep 2024 04 TO 06 3 ROOM 67 sqm $405,000 $6,045
Jun 2024 04 TO 06 4 ROOM 91 sqm $480,000 $5,275
Jan 2024 04 TO 06 3 ROOM 67 sqm $375,000 $5,597
Jan 2024 07 TO 09 3 ROOM 67 sqm $375,000 $5,597
Nov 2023 01 TO 03 3 ROOM 67 sqm $353,000 $5,269
Nov 2022 04 TO 06 3 ROOM 81 sqm $400,000 $4,938
Dec 2021 10 TO 12 3 ROOM 67 sqm $328,000 $4,896
Dec 2021 10 TO 12 3 ROOM 67 sqm $350,000 $5,224
Nov 2021 07 TO 09 3 ROOM 67 sqm $342,800 $5,116
Nov 2021 10 TO 12 3 ROOM 67 sqm $347,000 $5,179
Aug 2021 10 TO 12 3 ROOM 82 sqm $350,000 $4,268
Jan 2021 07 TO 09 3 ROOM 82 sqm $350,000 $4,268
Jul 2020 04 TO 06 3 ROOM 82 sqm $295,000 $3,598
Mar 2020 07 TO 09 3 ROOM 67 sqm $272,000 $4,060
Sep 2019 10 TO 12 3 ROOM 67 sqm $270,000 $4,030
Jun 2018 07 TO 09 3 ROOM 67 sqm $280,000 $4,179
Mar 2018 10 TO 12 3 ROOM 67 sqm $300,000 $4,478
Mar 2017 07 TO 09 3 ROOM 67 sqm $320,000 $4,776
Showing 20 of 20 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 123 Hougang Avenue 1

Block 123 at Hougang Avenue 1 is a residential HDB block in Hougang, Singapore, built in 1981 with approximately 55 years remaining on its 99-year lease. The block contains 3 room, 4 room flats, with resale prices ranging from $270,000 to $570,000 based on 20 recorded transactions since January 2017. The most recent transaction was a 4 room flat on storeys 10 TO 12 sold for $570,000 in 2025-09. The current median price per square metre is $5,027. Over the past five years, resale prices at this block have increased by approximately 38%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.8492, with an annual lease decay rate of approximately 0.62%. 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 123 Hougang Avenue 1 worth?

The most recent resale transaction at Block 123 Hougang Avenue 1 was $570,000 for a 4 room flat in 2025-09. The median price per square metre across all flat types is $5,027, based on 20 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 123 Hougang Avenue 1?

Block 123 Hougang Avenue 1 was built in 1981 and has approximately 55 years remaining on its 99-year lease. Under Bala's Table (the SLA leasehold valuation model), the annual lease decay rate is 0.62%, meaning the leasehold value decreases by approximately 0.62% per year at the current remaining lease.

What flat types are available at Block 123 Hougang Avenue 1?

Block 123 Hougang Avenue 1 in Hougang contains 3 room, 4 room flats. Resale prices range from $270,000 to $570,000 based on historical transaction records from data.gov.sg.

Have HDB prices at Block 123 Hougang Avenue 1 gone up or down?

Resale prices at Block 123 Hougang Avenue 1 have increased by approximately 38% over the past five years. The current median price is $350,000, with the most recent sale at $570,000 in 2025-09.

Link copied to clipboard