Block 173 Gangsa Road

4 Room · 5 Room · Built 1997 · 70 years remaining lease MOP Cleared
Latest Sale
$681,671
Jan 2026 · 4 ROOM · #19-21
Median $/sqm
$5,415
Based on 18 transactions
Total Transactions
18
Since Jan 2017
5-Year Trend
▲ +16.9%
Median price change
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
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Future Value Projection
Estimated value in --
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Based on Bala's Table (SLA leasehold valuation model) with 3% annual market appreciation. Lease decay is non-linear and accelerates as remaining lease shortens. Not financial advice.
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Lease Decay Projection
0 years 70 years remaining 99 years
70 years 11 months
Remaining lease
↓ 0.33%/yr
Annual lease decay (Bala's Table)
Based on Bala's Table (SLA leasehold relativity model). At 70 years remaining, decay is gradual (~0.33%/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
Jan 2026 19 TO 21 4 ROOM 101 sqm $681,671 $6,749
Apr 2025 04 TO 06 4 ROOM 101 sqm $628,000 $6,218
Aug 2024 13 TO 15 5 ROOM 123 sqm $825,000 $6,707
May 2024 04 TO 06 4 ROOM 101 sqm $660,000 $6,535
Jul 2023 13 TO 15 5 ROOM 122 sqm $730,000 $5,984
Feb 2023 13 TO 15 4 ROOM 101 sqm $635,000 $6,287
Sep 2022 13 TO 15 4 ROOM 101 sqm $614,288 $6,082
Aug 2022 07 TO 09 4 ROOM 101 sqm $565,888 $5,603
Nov 2021 10 TO 12 4 ROOM 101 sqm $560,000 $5,545
Sep 2021 07 TO 09 5 ROOM 123 sqm $650,000 $5,285
Mar 2021 19 TO 21 4 ROOM 101 sqm $525,000 $5,198
Dec 2020 16 TO 18 4 ROOM 101 sqm $490,000 $4,851
Feb 2020 19 TO 21 5 ROOM 122 sqm $615,000 $5,041
Nov 2019 19 TO 21 4 ROOM 101 sqm $532,000 $5,267
Jan 2019 07 TO 09 4 ROOM 101 sqm $410,000 $4,059
Jul 2017 19 TO 21 5 ROOM 123 sqm $595,000 $4,837
Jun 2017 07 TO 09 4 ROOM 101 sqm $430,000 $4,257
Mar 2017 07 TO 09 5 ROOM 122 sqm $525,000 $4,303
Showing 18 of 18 transactions
Source: HDB Resale Flat Prices, data.gov.sg (Singapore Open Data Licence).

About Block 173 Gangsa Road

Block 173 at Gangsa Road is a residential HDB block in Bukit Panjang, Singapore, built in 1997 with approximately 70 years remaining on its 99-year lease. The block contains 4 room, 5 room flats, with resale prices ranging from $410,000 to $825,000 based on 18 recorded transactions since January 2017. The most recent transaction was a 4 room flat on storeys 19 TO 21 sold for $681,671 in 2026-01. The current median price per square metre is $5,415. Over the past five years, resale prices at this block have increased by approximately 16.9%. Under Bala's Table (the Singapore Land Authority's official leasehold valuation model), the block's leasehold relativity ratio is 0.9128, with an annual lease decay rate of approximately 0.33%. 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 173 Gangsa Road worth?

The most recent resale transaction at Block 173 Gangsa Road was $681,671 for a 4 room flat in 2026-01. The median price per square metre across all flat types is $5,415, based on 18 transactions since January 2017. Data sourced from data.gov.sg.

What is the remaining lease for Block 173 Gangsa Road?

Block 173 Gangsa Road was built in 1997 and has approximately 70 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 0.33%, meaning the leasehold value decreases by approximately 0.33% per year at the current remaining lease.

What flat types are available at Block 173 Gangsa Road?

Block 173 Gangsa Road in Bukit Panjang contains 4 room, 5 room flats. Resale prices range from $410,000 to $825,000 based on historical transaction records from data.gov.sg.

Have HDB prices at Block 173 Gangsa Road gone up or down?

Resale prices at Block 173 Gangsa Road have increased by approximately 16.9% over the past five years. The current median price is $604,644, with the most recent sale at $681,671 in 2026-01.

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