Blk 505 Serangoon North Avenue 4 — HDB resale prices
HDB resale prices, Serangoon · 5-Room · built 1992
median resale price, last 24 months
2 sales in that window · as of Sep 2026
How it compares
Blk 505 Serangoon North Avenue 4 is an HDB block in Serangoon (completed in 1992, 14 storeys, 76 units). As of Sep 2026, its median resale price over the last 24 months is $790,000, about 18% above the Serangoon median, from 2 sales. 73 resale transactions have been recorded here since 1990.
Price by year
At a glance
Unit mix (sold): 5-room ×76
Prices by flat type — last 24 months (as of Sep 2026)
Median monthly rent at this block: $4,000/mo (1 rental contracts, last 12 months).
Estimated gross rental yield: ~6.1% (Serangoon average: ~6.3%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 75% of Serangoon blocks with recent sales.
What the price model says
For a typical 5-room flat here, our price model estimates $670,618–$749,732 (central estimate $710,175). Recent sales — median $751,727 — 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 |
|---|---|---|---|
| 1995 | $388,000 | $640,235 | 1 |
| 1997 | $432,500 | $689,991 | 8 |
| 1998 | $401,000 | $641,482 | 10 |
| 1999 | $395,500 | $632,533 | 6 |
| 2000 | $399,400 | $630,269 | 6 |
| 2001 | $360,000 | $562,395 | 1 |
| 2002 | $317,500 | $497,951 | 4 |
| 2003 | $311,000 | $485,388 | 3 |
| 2004 | $320,000 | $491,221 | 1 |
| 2005 | $281,400 | $429,934 | 4 |
| 2006 | $262,000 | $396,464 | 1 |
| 2007 | $281,500 | $417,169 | 2 |
| 2008 | $323,000 | $448,884 | 1 |
| 2009 | $380,000 | $525,011 | 3 |
| 2010 | $465,000 | $624,774 | 3 |
| 2011 | $494,000 | $630,620 | 2 |
| 2014 | $515,000 | $607,828 | 2 |
| 2017 | $470,000 | $557,383 | 1 |
| 2018 | $519,000 | $612,807 | 4 |
| 2019 | $485,000 | $569,430 | 1 |
| 2021 | $607,500 | $698,313 | 2 |
| 2022 | $645,000 | $698,587 | 1 |
| 2023 | $713,000 | $736,631 | 2 |
| 2024 | $745,000 | $751,727 | 3 |
| 2026 | $810,000 | $810,000 | 1 |
Records
| Record sale | $810,000 (5-Room, 2026-08) |
|---|---|
| First recorded sale | $388,000 (1995-02) |
| Busiest year | 1998 · 10 sales |
| Total transacted | $31.7M across 73 sales |
Recent resale transactions
| Month | Flat type | Storey | Area | Price |
|---|---|---|---|---|
| 2026-08 | 5-Room | 10–12 | 124 m² | $810,000 |
| 2024-12 | 5-Room | 10–12 | 124 m² | $770,000 |
| 2024-07 | 5-Room | 04–06 | 124 m² | $745,000 |
| 2024-01 | 5-Room | 10–12 | 124 m² | $710,000 |
| 2023-08 | 5-Room | 07–09 | 124 m² | $738,000 |
| 2023-03 | 5-Room | 04–06 | 124 m² | $688,000 |
| 2022-12 | 5-Room | 04–06 | 124 m² | $645,000 |
| 2021-08 | 5-Room | 07–09 | 125 m² | $650,000 |
| 2021-06 | 5-Room | 04–06 | 124 m² | $565,000 |
| 2019-11 | 5-Room | 04–06 | 125 m² | $485,000 |
| 2018-10 | 5-Room | 07–09 | 124 m² | $523,000 |
| 2018-07 | 5-Room | 10–12 | 124 m² | $515,000 |
| 2018-02 | 5-Room | 07–09 | 124 m² | $530,000 |
| 2018-01 | 5-Room | 04–06 | 124 m² | $445,000 |
| 2017-02 | 5-Room | 07–09 | 124 m² | $470,000 |
| 2014-12 | 5-Room | 07–09 | 125 m² | $495,000 |
| 2014-07 | 5-Room | 10–12 | 124 m² | $535,000 |
| 2011-11 | 5-Room | 04–06 | 124 m² | $500,000 |
| 2011-06 | 5-Room | 07–09 | 124 m² | $488,000 |
| 2010-10 | 5-Room | 04–06 | 124 m² | $472,000 |
Serangoon North Avenue 4 blocks ranked by price
Showing the top 15 of 41 priced blocks.
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Quick answers
How much does a flat at Blk 505 Serangoon North Avenue 4 cost?
The median resale price over the last 24 months is $790,000 (2 sales, as of Sep 2026). See the by-type table above for 3-room vs 4-room medians.
Is Blk 505 Serangoon North Avenue 4 fairly priced?
For a typical 5-room flat here, our price model estimates $670,618–$749,732 (central estimate $710,175). Recent sales — median $751,727 — sit above that range.
What is the rent at Blk 505 Serangoon North Avenue 4?
The median monthly rent is $4,000/mo over the last 12 months (1 contracts).
How old is Blk 505 Serangoon North Avenue 4?
The block was completed in 1992 and its 99-year lease runs from 1992.