Blk 423 Yishun Avenue 11 — HDB resale prices
HDB resale prices, Yishun · 4-Room · built 1987
median resale price, last 24 months
4 sales in that window · as of Sep 2026
How it compares
Blk 423 Yishun Avenue 11 is an HDB block in Yishun (completed in 1987, 12 storeys, 110 units). As of Sep 2026, its median resale price over the last 24 months is $495,000, about 8% below the Yishun median, from 4 sales. 184 resale transactions have been recorded here since 1990.
Price by year
At a glance
Unit mix (sold): 4-room ×110
Prices by flat type — last 24 months (as of Sep 2026)
Median monthly rent at this block: $2,950/mo (2 rental contracts, last 12 months).
Estimated gross rental yield: ~7.2% (Yishun average: ~6.6%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 69% of Yishun blocks with recent sales.
What the price model says
For a typical 4-room flat here, our price model estimates $411,288–$459,808 (central estimate $435,548). Recent sales — median $465,068 — sit above 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 |
|---|---|---|---|
| 1993 | $122,500 | $211,985 | 4 |
| 1994 | $156,000 | $261,855 | 13 |
| 1995 | $165,000 | $272,265 | 5 |
| 1996 | $244,000 | $397,141 | 11 |
| 1997 | $250,000 | $398,839 | 9 |
| 1998 | $190,000 | $303,944 | 19 |
| 1999 | $173,000 | $276,683 | 17 |
| 2000 | $190,000 | $299,828 | 7 |
| 2001 | $158,000 | $246,829 | 6 |
| 2002 | $169,500 | $265,836 | 6 |
| 2003 | $171,500 | $267,666 | 6 |
| 2004 | $162,000 | $248,681 | 4 |
| 2005 | $195,900 | $299,303 | 4 |
| 2006 | $160,100 | $242,266 | 7 |
| 2007 | $165,000 | $244,522 | 2 |
| 2008 | $221,000 | $307,131 | 6 |
| 2009 | $229,000 | $316,388 | 2 |
| 2010 | $285,000 | $382,926 | 5 |
| 2011 | $321,500 | $410,414 | 6 |
| 2012 | $333,000 | $406,473 | 2 |
| 2013 | $350,000 | $417,359 | 5 |
| 2014 | $366,500 | $432,561 | 2 |
| 2015 | $320,500 | $380,258 | 7 |
| 2016 | $310,000 | $369,757 | 3 |
| 2017 | $312,500 | $370,601 | 4 |
| 2018 | $332,500 | $392,598 | 2 |
| 2019 | $280,000 | $328,743 | 5 |
| 2020 | $300,000 | $352,832 | 2 |
| 2021 | $349,000 | $401,170 | 3 |
| 2022 | $375,000 | $406,155 | 3 |
| 2023 | $407,500 | $421,006 | 2 |
| 2024 | $458,000 | $462,136 | 1 |
| 2025 | $500,000 | $500,000 | 3 |
| 2026 | $490,000 | $490,000 | 1 |
Records
| Record sale | $550,000 (4-Room, 2025-12) |
|---|---|
| First recorded sale | $78,000 (1993-02) |
| Busiest year | 1998 · 19 sales |
| 10-year change (real) | +33% (+2.9%/yr, 2016→2026) |
| Total transacted | $43.6M across 184 sales |
Recent resale transactions
| Month | Flat type | Storey | Area | Price |
|---|---|---|---|---|
| 2026-02 | 4-Room | 07–09 | 84 m² | $490,000 |
| 2025-12 | 4-Room | 07–09 | 104 m² | $550,000 |
| 2025-03 | 4-Room | 10–12 | 84 m² | $500,000 |
| 2025-03 | 4-Room | 01–03 | 84 m² | $468,000 |
| 2024-06 | 4-Room | 07–09 | 84 m² | $458,000 |
| 2023-05 | 4-Room | 10–12 | 84 m² | $410,000 |
| 2023-01 | 4-Room | 07–09 | 84 m² | $405,000 |
| 2022-08 | 4-Room | 10–12 | 104 m² | $445,000 |
| 2022-08 | 4-Room | 01–03 | 84 m² | $375,000 |
| 2022-08 | 4-Room | 07–09 | 84 m² | $325,000 |
| 2021-08 | 4-Room | 07–09 | 84 m² | $395,000 |
| 2021-08 | 4-Room | 01–03 | 84 m² | $349,000 |
| 2021-04 | 4-Room | 04–06 | 84 m² | $332,000 |
| 2020-02 | 4-Room | 01–03 | 104 m² | $317,000 |
| 2020-02 | 4-Room | 04–06 | 84 m² | $283,000 |
| 2019-08 | 4-Room | 04–06 | 84 m² | $270,000 |
| 2019-08 | 4-Room | 01–03 | 84 m² | $265,000 |
| 2019-07 | 4-Room | 10–12 | 84 m² | $280,000 |
| 2019-03 | 4-Room | 04–06 | 104 m² | $333,000 |
| 2019-03 | 4-Room | 07–09 | 84 m² | $305,000 |
Yishun Avenue 11 blocks ranked by price
Showing the top 15 of 43 priced blocks.
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Quick answers
How much does a flat at Blk 423 Yishun Avenue 11 cost?
The median resale price over the last 24 months is $495,000 (4 sales, as of Sep 2026). See the by-type table above for 3-room vs 4-room medians.
Is Blk 423 Yishun Avenue 11 fairly priced?
For a typical 4-room flat here, our price model estimates $411,288–$459,808 (central estimate $435,548). Recent sales — median $465,068 — sit above that range.
What is the rent at Blk 423 Yishun Avenue 11?
The median monthly rent is $2,950/mo over the last 12 months (2 contracts).
How old is Blk 423 Yishun Avenue 11?
The block was completed in 1987 and its 99-year lease runs from 1988.