Blk 401 Serangoon Ave 1 is an HDB block in Serangoon (completed in 1988, 13 storeys, 120 units). As of Jul 2026, its median resale price over the last 24 months is $838,888, about 8% above the Serangoon median, from 5 sales. 110 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Serangoon |
|---|---|
| Completed | 1988 |
| Lease from | 1989 |
| Storeys | 13 |
| Dwelling units | 120 |
| Unit mix (sold) | 4-room ×96 · 5-room ×24 |
| Recorded resales | 110 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 4-Room | $838,888 | $7,844/m² | 5 |
Median monthly rent at this block: $3,700/mo (5 rental contracts, last 12 months).
Estimated gross rental yield: ~5.3% (Serangoon average: ~5.1%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 22% of Serangoon blocks with recent sales.
For a typical 4-room flat here, our price model estimates $719,722–$805,113 (central estimate $762,417). Recent sales — median $792,944 — sit within that range. The model explains 94% of resale prices with a typical error of ±6%. Indicative only — not an official valuation.
| Year | Median (nominal) | Median (today's $) | Sales |
|---|---|---|---|
| 1994 | $208,000 | $349,140 | 3 |
| 1995 | $268,000 | $442,224 | 3 |
| 1996 | $340,000 | $553,393 | 5 |
| 1997 | $358,000 | $571,137 | 4 |
| 1998 | $310,000 | $495,909 | 5 |
| 1999 | $299,000 | $478,198 | 12 |
| 2000 | $315,000 | $497,082 | 5 |
| 2001 | $287,000 | $448,354 | 4 |
| 2002 | $270,000 | $423,455 | 7 |
| 2003 | $275,000 | $429,202 | 4 |
| 2004 | $270,000 | $414,468 | 3 |
| 2005 | $261,500 | $399,530 | 6 |
| 2006 | $266,000 | $402,516 | 4 |
| 2007 | $340,000 | $503,863 | 1 |
| 2008 | $421,000 | $585,078 | 2 |
| 2009 | $430,000 | $594,092 | 1 |
| 2010 | $470,000 | $631,492 | 4 |
| 2011 | $600,000 | $765,935 | 1 |
| 2012 | $616,888 | $752,998 | 3 |
| 2015 | $568,000 | $673,905 | 3 |
| 2016 | $572,000 | $682,261 | 3 |
| 2017 | $637,500 | $756,025 | 4 |
| 2018 | $550,000 | $649,410 | 3 |
| 2019 | $612,000 | $718,538 | 5 |
| 2020 | $598,000 | $703,313 | 3 |
| 2021 | $580,000 | $666,702 | 3 |
| 2022 | $670,000 | $725,664 | 1 |
| 2023 | $714,000 | $737,665 | 2 |
| 2024 | $862,000 | $869,784 | 1 |
| 2025 | $795,888 | $795,888 | 3 |
| 2026 | $845,694 | $845,694 | 2 |
| Record sale | $862,000 (5-Room, 2024-01) |
|---|---|
| First recorded sale | $220,000 (1994-02) |
| Busiest year | 1999 · 12 sales |
| 10-year change (real) | +24% (+2.2%/yr, 2016→2026) |
| Total transacted | $47.1M across 110 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2026-05 | 4-Room | 01 TO 03 | 105 | $838,888 |
| 2026-03 | 4-Room | 04 TO 06 | 105 | $852,500 |
| 2025-09 | 4-Room | 04 TO 06 | 103 | $790,000 |
| 2025-07 | 4-Room | 10 TO 12 | 109 | $855,000 |
| 2025-02 | 4-Room | 01 TO 03 | 105 | $795,888 |
| 2024-01 | 5-Room | 04 TO 06 | 121 | $862,000 |
| 2023-12 | 4-Room | 10 TO 12 | 93 | $678,000 |
| 2023-11 | 4-Room | 01 TO 03 | 109 | $750,000 |
| 2022-05 | 4-Room | 07 TO 09 | 109 | $670,000 |
| 2021-06 | 4-Room | 04 TO 06 | 93 | $560,000 |
| 2021-05 | 4-Room | 07 TO 09 | 109 | $632,000 |
| 2021-01 | 4-Room | 04 TO 06 | 105 | $580,000 |
| 2020-10 | 4-Room | 04 TO 06 | 105 | $598,000 |
| 2020-06 | 4-Room | 04 TO 06 | 93 | $515,000 |
| 2020-01 | 4-Room | 07 TO 09 | 105 | $630,000 |
| 2019-04 | 4-Room | 07 TO 09 | 103 | $560,000 |
| 2019-04 | 4-Room | 04 TO 06 | 103 | $612,000 |
| 2019-03 | 4-Room | 01 TO 03 | 105 | $575,000 |
| 2019-03 | 5-Room | 10 TO 12 | 121 | $755,000 |
| 2019-02 | 5-Room | 07 TO 09 | 121 | $745,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 405 | $975,000 | $8,049/m² |
| 2. Blk 408 | $947,500 | $8,337/m² |
| 3. Blk 426 | $930,000 | $8,728/m² |
| 4. Blk 407 | $915,000 | $8,325/m² |
| 5. Blk 403 | $885,000 | $7,811/m² |
| 6. Blk 404 | $855,000 | $6,951/m² |
| 7. Blk 425 | $847,500 | $8,012/m² |
| 8. Blk 401 | $838,888 | $7,844/m² |
| 9. Blk 402 | $780,000 | $7,381/m² |
The median resale price over the last 24 months is $838,888 (5 sales, as of Jul 2026). See the by-type table above for 3-room vs 4-room medians.
For a typical 4-room flat here, our price model estimates $719,722–$805,113 (central estimate $762,417). Recent sales — median $792,944 — sit within that range.
The median monthly rent is $3,700/mo over the last 12 months (5 contracts).
The block was completed in 1988 and its 99-year lease runs from 1989.