Blk 621 Ang Mo Kio Avenue 9 — HDB resale prices
HDB resale prices, Ang Mo Kio · 3-Room, 4-Room · built 1979
median resale price, last 24 months
6 sales in that window · as of Sep 2026
How it compares
Blk 621 Ang Mo Kio Avenue 9 is an HDB block in Ang Mo Kio (completed in 1979, 12 storeys, 107 units). As of Sep 2026, its median resale price over the last 24 months is $442,500, about 14% below the Ang Mo Kio median, from 6 sales. 177 resale transactions have been recorded here since 1990.
Price by year
At a glance
Unit mix (sold): 3-room ×82 · 4-room ×22 · 5-room ×2 · exec ×1
Prices by flat type — last 24 months (as of Sep 2026)
Median monthly rent at this block: $2,525/mo (6 rental contracts, last 12 months).
Estimated gross rental yield: ~6.8% (Ang Mo Kio average: ~6.8%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 28% of Ang Mo Kio blocks with recent sales.
What the price model says
For a typical 3-room flat here, our price model estimates $415,053–$464,017 (central estimate $439,535). Recent sales — median $430,000 — sit within that range. The model explains 94% of resale prices with a typical error of ±6%. Indicative only — not an official valuation.
Median resale price by year
| Year | Median (nominal) | Median (today's $) | Sales |
|---|---|---|---|
| 1990 | $44,000 | $82,373 | 4 |
| 1991 | $47,000 | $85,063 | 4 |
| 1992 | $46,000 | $81,426 | 6 |
| 1993 | $82,000 | $141,900 | 6 |
| 1994 | $110,000 | $184,641 | 8 |
| 1995 | $136,900 | $225,897 | 6 |
| 1996 | $185,000 | $301,111 | 12 |
| 1997 | $244,500 | $390,064 | 6 |
| 1998 | $162,500 | $259,952 | 8 |
| 1999 | $150,000 | $239,899 | 13 |
| 2000 | $164,500 | $259,587 | 5 |
| 2001 | $147,000 | $229,645 | 7 |
| 2002 | $143,750 | $225,450 | 10 |
| 2003 | $166,500 | $259,862 | 5 |
| 2004 | $177,500 | $272,474 | 6 |
| 2005 | $215,000 | $328,485 | 3 |
| 2006 | $168,000 | $254,221 | 5 |
| 2007 | $175,000 | $259,341 | 7 |
| 2008 | $223,000 | $309,911 | 8 |
| 2010 | $298,000 | $400,393 | 7 |
| 2011 | $332,000 | $423,817 | 5 |
| 2012 | $362,000 | $441,872 | 3 |
| 2013 | $488,000 | $581,917 | 1 |
| 2014 | $500,000 | $590,124 | 1 |
| 2015 | $300,000 | $355,936 | 1 |
| 2016 | $342,500 | $408,521 | 4 |
| 2017 | $300,000 | $355,777 | 1 |
| 2018 | $379,000 | $447,503 | 2 |
| 2019 | $285,000 | $334,614 | 5 |
| 2020 | $379,944 | $446,855 | 2 |
| 2021 | $387,500 | $445,426 | 6 |
| 2022 | $370,000 | $400,740 | 3 |
| 2023 | $486,000 | $502,108 | 1 |
| 2025 | $450,000 | $450,000 | 5 |
| 2026 | $435,000 | $435,000 | 1 |
Records
| Record sale | $680,000 (Executive, 2021-01) |
|---|---|
| First recorded sale | $42,000 (1990-02) |
| Busiest year | 1999 · 13 sales |
| 10-year change (real) | +6% (+0.6%/yr, 2016→2026) |
| Total transacted | $38.7M across 177 sales |
Recent resale transactions
| Month | Flat type | Storey | Area | Price |
|---|---|---|---|---|
| 2026-06 | 3-Room | 07–09 | 68 m² | $435,000 |
| 2025-09 | 3-Room | 07–09 | 68 m² | $455,000 |
| 2025-07 | 4-Room | 07–09 | 92 m² | $610,888 |
| 2025-07 | 3-Room | 07–09 | 68 m² | $450,000 |
| 2025-07 | 3-Room | 10–12 | 68 m² | $428,000 |
| 2025-06 | 3-Room | 10–12 | 68 m² | $430,000 |
| 2023-03 | 4-Room | 04–06 | 92 m² | $486,000 |
| 2022-10 | 3-Room | 07–09 | 68 m² | $370,000 |
| 2022-02 | 4-Room | 07–09 | 92 m² | $418,000 |
| 2022-02 | 3-Room | 07–09 | 68 m² | $370,000 |
| 2021-10 | 4-Room | 07–09 | 92 m² | $432,288 |
| 2021-10 | 4-Room | 10–12 | 92 m² | $425,000 |
| 2021-10 | 3-Room | 10–12 | 68 m² | $338,800 |
| 2021-03 | 3-Room | 04–06 | 82 m² | $350,000 |
| 2021-01 | Executive | 01–03 | 150 m² | $680,000 |
| 2021-01 | 3-Room | 04–06 | 82 m² | $345,000 |
| 2020-02 | 4-Room | 07–09 | 92 m² | $419,000 |
| 2020-02 | 4-Room | 04–06 | 92 m² | $340,888 |
| 2019-12 | 3-Room | 10–12 | 68 m² | $290,000 |
| 2019-12 | 3-Room | 07–09 | 68 m² | $285,000 |
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Quick answers
How much does a flat at Blk 621 Ang Mo Kio Avenue 9 cost?
The median resale price over the last 24 months is $442,500 (6 sales, as of Sep 2026). See the by-type table above for 3-room vs 4-room medians.
Is Blk 621 Ang Mo Kio Avenue 9 fairly priced?
For a typical 3-room flat here, our price model estimates $415,053–$464,017 (central estimate $439,535). Recent sales — median $430,000 — sit within that range.
What is the rent at Blk 621 Ang Mo Kio Avenue 9?
The median monthly rent is $2,525/mo over the last 12 months (6 contracts).
How old is Blk 621 Ang Mo Kio Avenue 9?
The block was completed in 1979 and its 99-year lease runs from 1980.