Blk 123 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 $980,000, about 26% above the Serangoon median, from 3 sales. 180 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) | exec ×96 |
| Recorded resales | 180 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| Executive | $980,000 | $6,533/m² | 3 |
On price per square metre, this block is cheaper than 68% of Serangoon blocks with recent sales.
For a typical executive flat here, our price model estimates $876,031–$979,967 (central estimate $927,999). Recent sales — median $920,618 — 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 |
|---|---|---|---|
| 1990 | $206,000 | $385,655 | 9 |
| 1991 | $217,750 | $394,096 | 12 |
| 1992 | $230,000 | $407,131 | 7 |
| 1993 | $301,000 | $520,877 | 8 |
| 1994 | $395,000 | $663,029 | 4 |
| 1995 | $427,000 | $704,588 | 6 |
| 1996 | $542,500 | $882,987 | 6 |
| 1997 | $550,000 | $877,445 | 5 |
| 1998 | $431,000 | $689,473 | 8 |
| 1999 | $430,000 | $687,710 | 16 |
| 2000 | $460,000 | $725,898 | 3 |
| 2001 | $393,500 | $614,729 | 4 |
| 2002 | $371,000 | $581,858 | 3 |
| 2003 | $374,000 | $583,714 | 2 |
| 2004 | $351,500 | $539,576 | 2 |
| 2005 | $335,500 | $512,590 | 2 |
| 2006 | $325,000 | $491,796 | 5 |
| 2007 | $330,000 | $489,043 | 8 |
| 2008 | $410,000 | $569,791 | 7 |
| 2009 | $422,300 | $583,453 | 3 |
| 2010 | $498,000 | $669,113 | 3 |
| 2011 | $591,500 | $755,084 | 2 |
| 2012 | $573,000 | $699,427 | 3 |
| 2013 | $648,000 | $772,710 | 3 |
| 2014 | $665,000 | $784,865 | 3 |
| 2015 | $685,000 | $812,720 | 1 |
| 2017 | $670,000 | $794,568 | 7 |
| 2018 | $685,000 | $808,811 | 7 |
| 2019 | $640,000 | $751,413 | 7 |
| 2020 | $696,000 | $818,571 | 3 |
| 2021 | $760,000 | $873,609 | 9 |
| 2022 | $850,000 | $920,618 | 3 |
| 2023 | $894,000 | $923,630 | 4 |
| 2024 | $949,000 | $957,569 | 4 |
| 2025 | $1,050,000 | $1,050,000 | 1 |
| Record sale | $1,050,000 (Executive, 2025-05) |
|---|---|
| First recorded sale | $200,000 (1990-03) |
| Busiest year | 1999 · 16 sales |
| 10-year change (real) | +29% (+2.6%/yr, 2015→2025) |
| Total transacted | $86.8M across 180 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2025-05 | Executive | 10 TO 12 | 150 | $1,050,000 |
| 2024-12 | Executive | 10 TO 12 | 150 | $980,000 |
| 2024-11 | Executive | 04 TO 06 | 150 | $970,000 |
| 2024-07 | Executive | 01 TO 03 | 150 | $855,000 |
| 2024-06 | Executive | 07 TO 09 | 150 | $928,000 |
| 2023-09 | Executive | 07 TO 09 | 150 | $880,000 |
| 2023-09 | Executive | 01 TO 03 | 150 | $908,000 |
| 2023-09 | Executive | 10 TO 12 | 155 | $920,000 |
| 2023-02 | Executive | 07 TO 09 | 150 | $870,000 |
| 2022-08 | Executive | 10 TO 12 | 150 | $940,000 |
| 2022-05 | Executive | 01 TO 03 | 150 | $750,000 |
| 2022-05 | Executive | 07 TO 09 | 150 | $850,000 |
| 2021-12 | Executive | 07 TO 09 | 155 | $742,888 |
| 2021-11 | Executive | 10 TO 12 | 150 | $760,000 |
| 2021-11 | Executive | 01 TO 03 | 155 | $760,000 |
| 2021-11 | Executive | 07 TO 09 | 150 | $935,000 |
| 2021-08 | Executive | 10 TO 12 | 150 | $800,000 |
| 2021-05 | Executive | 10 TO 12 | 150 | $775,000 |
| 2021-04 | Executive | 04 TO 06 | 150 | $675,000 |
| 2021-01 | Executive | 04 TO 06 | 150 | $580,000 |
| 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 $980,000 (3 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 $876,031–$979,967 (central estimate $927,999). Recent sales — median $920,618 — sit within that range.
The block was completed in 1984 and its 99-year lease runs from 1985.