Blk 121 Serangoon Nth Ave 1 is an HDB block in Serangoon (completed in 1984, 13 storeys, 96 units). As of Jul 2026, its median resale price over the last 24 months is $724,000, about 7% below the Serangoon median, from 4 sales. 110 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Serangoon |
|---|---|
| Completed | 1984 |
| Lease from | 1985 |
| Storeys | 13 |
| Dwelling units | 96 |
| Unit mix (sold) | 4-room ×18 · 5-room ×78 |
| Recorded resales | 110 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 5-Room | $724,000 | $5,888/m² | 4 |
On price per square metre, this block is cheaper than 95% of Serangoon blocks with recent sales.
For a typical 5-room flat here, our price model estimates $703,874–$787,385 (central estimate $745,630). Recent sales — median $671,543 — sit below 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 | $140,000 | $262,095 | 6 |
| 1991 | $109,500 | $198,179 | 2 |
| 1992 | $163,000 | $288,532 | 3 |
| 1993 | $278,500 | $481,941 | 2 |
| 1994 | $290,000 | $486,781 | 1 |
| 1995 | $342,500 | $565,157 | 8 |
| 1996 | $393,000 | $639,657 | 9 |
| 1997 | $422,000 | $673,240 | 5 |
| 1998 | $370,000 | $591,891 | 5 |
| 1999 | $332,500 | $531,775 | 8 |
| 2000 | $367,500 | $579,930 | 2 |
| 2001 | $269,000 | $420,234 | 2 |
| 2002 | $303,000 | $475,210 | 6 |
| 2003 | $303,000 | $472,902 | 1 |
| 2004 | $271,500 | $416,771 | 4 |
| 2005 | $267,500 | $408,697 | 6 |
| 2006 | $260,000 | $393,437 | 5 |
| 2007 | $285,000 | $422,356 | 1 |
| 2008 | $337,000 | $468,340 | 5 |
| 2009 | $361,500 | $499,451 | 4 |
| 2010 | $407,000 | $546,845 | 1 |
| 2011 | $465,000 | $593,600 | 1 |
| 2012 | $500,000 | $610,320 | 1 |
| 2013 | $401,000 | $478,174 | 1 |
| 2014 | $450,000 | $531,112 | 1 |
| 2015 | $478,000 | $567,124 | 3 |
| 2016 | $488,000 | $582,068 | 1 |
| 2017 | $500,000 | $592,961 | 1 |
| 2018 | $472,000 | $557,312 | 3 |
| 2019 | $483,000 | $567,082 | 3 |
| 2020 | $490,000 | $576,293 | 1 |
| 2021 | $528,000 | $606,928 | 1 |
| 2022 | $555,000 | $601,110 | 1 |
| 2023 | $649,000 | $670,510 | 2 |
| 2024 | $729,000 | $735,583 | 2 |
| 2025 | $692,500 | $692,500 | 2 |
| Record sale | $735,000 (5-Room, 2024-12) |
|---|---|
| First recorded sale | $140,000 (1990-03) |
| Busiest year | 1996 · 9 sales |
| 10-year change (real) | +22% (+2.0%/yr, 2015→2025) |
| Total transacted | $39.1M across 110 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2025-03 | 5-Room | 01 TO 03 | 121 | $660,000 |
| 2025-01 | 5-Room | 07 TO 09 | 125 | $725,000 |
| 2024-12 | 5-Room | 10 TO 12 | 121 | $723,000 |
| 2024-12 | 5-Room | 10 TO 12 | 123 | $735,000 |
| 2023-05 | 5-Room | 07 TO 09 | 123 | $648,000 |
| 2023-02 | 5-Room | 10 TO 12 | 121 | $650,000 |
| 2022-08 | 5-Room | 04 TO 06 | 121 | $555,000 |
| 2021-06 | 5-Room | 07 TO 09 | 121 | $528,000 |
| 2020-07 | 5-Room | 10 TO 12 | 121 | $490,000 |
| 2019-12 | 5-Room | 07 TO 09 | 125 | $483,000 |
| 2019-10 | 5-Room | 07 TO 09 | 123 | $490,000 |
| 2019-07 | 5-Room | 01 TO 03 | 121 | $433,500 |
| 2018-09 | 5-Room | 07 TO 09 | 121 | $472,000 |
| 2018-08 | 5-Room | 01 TO 03 | 121 | $398,000 |
| 2018-06 | 5-Room | 10 TO 12 | 121 | $500,000 |
| 2017-07 | 5-Room | 07 TO 09 | 125 | $500,000 |
| 2016-06 | 5-Room | 10 TO 12 | 121 | $488,000 |
| 2015-10 | 5-Room | 13 TO 15 | 121 | $538,000 |
| 2015-06 | 5-Room | 07 TO 09 | 121 | $478,000 |
| 2015-04 | 5-Room | 04 TO 06 | 121 | $460,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 142 | $1,014,000 | $6,825/m² |
| 2. Blk 123 | $980,000 | $6,533/m² |
| 3. Blk 148 | $965,444 | $6,659/m² |
| 4. Blk 125 | $900,000 | $6,081/m² |
| 5. Blk 114 | $737,500 | $6,095/m² |
| 6. Blk 121 | $724,000 | $5,888/m² |
| 7. Blk 117 | $685,000 | $5,763/m² |
| 8. Blk 116 | $634,000 | $5,763/m² |
| 9. Blk 127 | $588,888 | $6,471/m² |
| 10. Blk 103 | $580,000 | $6,374/m² |
| 11. Blk 109 | $576,000 | $6,330/m² |
| 12. Blk 111 | $571,500 | $6,238/m² |
| 13. Blk 110 | $570,000 | $5,877/m² |
| 14. Blk 144 | $566,500 | $6,106/m² |
| 15. Blk 118 | $560,000 | $6,154/m² |
Showing the top 15 of 35 blocks.
The median resale price over the last 24 months is $724,000 (4 sales, as of Jul 2026). See the by-type table above for 3-room vs 4-room medians.
For a typical 5-room flat here, our price model estimates $703,874–$787,385 (central estimate $745,630). Recent sales — median $671,543 — sit below that range.
The block was completed in 1984 and its 99-year lease runs from 1985.