Blk 321 Serangoon Ave 2 is an HDB block in Serangoon (completed in 1985, 11 storeys, 90 units). As of Jul 2026, its median resale price over the last 24 months is $1,180,000, about 51% above the Serangoon median, from 6 sales. 115 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Serangoon |
|---|---|
| Completed | 1985 |
| Lease from | 1986 |
| Storeys | 11 |
| Dwelling units | 90 |
| Unit mix (sold) | exec ×90 |
| Recorded resales | 115 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| Executive | $1,180,000 | $8,014/m² | 6 |
Median monthly rent at this block: $4,200/mo (1 rental contracts, last 12 months).
Estimated gross rental yield: ~4.3% (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 17% of Serangoon blocks with recent sales.
For a typical executive flat here, our price model estimates $1,042,667–$1,166,374 (central estimate $1,104,520). Recent sales — median $1,170,000 — sit above 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 |
|---|---|---|---|
| 1990 | $224,000 | $419,353 | 2 |
| 1991 | $204,000 | $369,210 | 3 |
| 1992 | $263,500 | $466,431 | 4 |
| 1993 | $293,000 | $507,033 | 7 |
| 1994 | $391,500 | $657,154 | 2 |
| 1995 | $470,000 | $775,542 | 3 |
| 1996 | $561,500 | $913,912 | 8 |
| 1997 | $556,500 | $887,815 | 4 |
| 1998 | $522,000 | $835,046 | 7 |
| 1999 | $466,000 | $745,285 | 10 |
| 2000 | $520,000 | $820,581 | 1 |
| 2001 | $448,000 | $699,869 | 5 |
| 2002 | $395,000 | $619,499 | 1 |
| 2003 | $402,500 | $628,195 | 4 |
| 2004 | $370,000 | $567,975 | 2 |
| 2005 | $357,500 | $546,202 | 4 |
| 2006 | $373,000 | $564,431 | 1 |
| 2007 | $361,000 | $534,984 | 5 |
| 2008 | $525,000 | $729,610 | 2 |
| 2010 | $595,000 | $799,442 | 4 |
| 2011 | $690,000 | $880,825 | 2 |
| 2012 | $700,000 | $854,448 | 1 |
| 2014 | $790,000 | $932,396 | 2 |
| 2015 | $728,000 | $863,737 | 1 |
| 2016 | $802,500 | $957,193 | 2 |
| 2017 | $864,000 | $1,024,637 | 2 |
| 2018 | $850,000 | $1,003,634 | 3 |
| 2019 | $862,500 | $1,012,646 | 2 |
| 2020 | $826,944 | $972,575 | 2 |
| 2021 | $830,000 | $954,073 | 2 |
| 2022 | $950,000 | $1,028,926 | 5 |
| 2023 | $1,070,000 | $1,105,464 | 1 |
| 2024 | $1,180,000 | $1,190,655 | 6 |
| 2025 | $1,182,500 | $1,182,500 | 4 |
| 2026 | $1,190,000 | $1,190,000 | 1 |
| Record sale | $1,208,000 (Executive, 2024-03) |
|---|---|
| First recorded sale | $243,000 (1990-11) |
| Busiest year | 1999 · 10 sales |
| 10-year change (real) | +24% (+2.2%/yr, 2016→2026) |
| Total transacted | $68.2M across 115 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2026-01 | Executive | 01 TO 03 | 146 | $1,190,000 |
| 2025-12 | Executive | 04 TO 06 | 147 | $1,200,000 |
| 2025-09 | Executive | 07 TO 09 | 146 | $1,195,000 |
| 2025-07 | Executive | 07 TO 09 | 150 | $1,050,000 |
| 2025-04 | Executive | 01 TO 03 | 150 | $1,170,000 |
| 2024-08 | Executive | 04 TO 06 | 146 | $1,150,000 |
| 2024-05 | Executive | 04 TO 06 | 146 | $1,180,000 |
| 2024-05 | Executive | 04 TO 06 | 146 | $1,200,000 |
| 2024-03 | Executive | 10 TO 12 | 146 | $1,150,000 |
| 2024-03 | Executive | 07 TO 09 | 150 | $1,208,000 |
| 2024-01 | Executive | 07 TO 09 | 146 | $1,180,000 |
| 2023-12 | Executive | 07 TO 09 | 146 | $1,070,000 |
| 2022-11 | Executive | 04 TO 06 | 146 | $1,090,000 |
| 2022-04 | Executive | 10 TO 12 | 146 | $880,000 |
| 2022-03 | Executive | 07 TO 09 | 146 | $1,015,000 |
| 2022-02 | Executive | 07 TO 09 | 146 | $875,000 |
| 2022-02 | Executive | 10 TO 12 | 146 | $950,000 |
| 2021-07 | Executive | 04 TO 06 | 146 | $830,000 |
| 2021-06 | Executive | 01 TO 03 | 141 | $830,000 |
| 2020-12 | Executive | 04 TO 06 | 146 | $833,888 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 319 | $1,209,000 | $8,167/m² |
| 2. Blk 318 | $1,190,000 | $7,987/m² |
| 3. Blk 321 | $1,180,000 | $8,014/m² |
| 4. Blk 236A | $1,180,000 | $8,429/m² |
| 5. Blk 317 | $1,170,000 | $7,748/m² |
| 6. Blk 234A | $1,155,444 | $8,253/m² |
| 7. Blk 232A | $1,130,000 | $8,014/m² |
| 8. Blk 310 | $800,000 | $6,612/m² |
| 9. Blk 312 | $764,000 | $6,216/m² |
| 10. Blk 243 | $735,000 | $8,258/m² |
| 11. Blk 240 | $720,000 | $8,095/m² |
| 12. Blk 238 | $712,888 | $7,262/m² |
| 13. Blk 239 | $692,500 | $7,339/m² |
| 14. Blk 315 | $689,444 | $7,492/m² |
| 15. Blk 308 | $677,500 | $7,170/m² |
Showing the top 15 of 26 blocks.
The median resale price over the last 24 months is $1,180,000 (6 sales, as of Jul 2026). See the by-type table above for 3-room vs 4-room medians.
For a typical executive flat here, our price model estimates $1,042,667–$1,166,374 (central estimate $1,104,520). Recent sales — median $1,170,000 — sit above that range.
The median monthly rent is $4,200/mo over the last 12 months (1 contracts).
The block was completed in 1985 and its 99-year lease runs from 1986.