Blk 123 Simei St 1 is an HDB block in Tampines (completed in 1987, 11 storeys, 172 units). As of Jul 2026, its median resale price over the last 24 months is $670,000, about 9% below the Tampines median, from 11 sales. 258 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Tampines |
|---|---|
| Completed | 1987 |
| Lease from | 1988 |
| Storeys | 11 |
| Dwelling units | 172 |
| Unit mix (sold) | 4-room ×108 · 5-room ×64 |
| Recorded resales | 258 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 4-Room | $665,000 | $6,394/m² | 10 |
| 5-Room | $768,000 | $6,347/m² | 1 |
Median monthly rent at this block: $3,550/mo (7 rental contracts, last 12 months).
Estimated gross rental yield: ~6.4% (Tampines average: ~5.6%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 50% of Tampines blocks with recent sales.
For a typical 4-room flat here, our price model estimates $626,870–$701,244 (central estimate $664,057). Recent sales — median $652,890 — 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 |
|---|---|---|---|
| 1993 | $233,000 | $403,204 | 8 |
| 1994 | $219,000 | $367,604 | 16 |
| 1995 | $258,000 | $425,723 | 15 |
| 1996 | $398,500 | $648,609 | 18 |
| 1997 | $355,000 | $566,351 | 13 |
| 1998 | $347,500 | $555,898 | 16 |
| 1999 | $339,000 | $542,171 | 20 |
| 2000 | $310,000 | $489,192 | 19 |
| 2001 | $286,000 | $446,791 | 11 |
| 2002 | $268,000 | $420,318 | 8 |
| 2003 | $312,900 | $488,354 | 6 |
| 2004 | $276,888 | $425,042 | 5 |
| 2005 | $285,000 | $435,434 | 6 |
| 2006 | $287,000 | $434,294 | 11 |
| 2007 | $301,000 | $446,067 | 3 |
| 2008 | $404,444 | $562,069 | 8 |
| 2009 | $397,500 | $549,189 | 6 |
| 2010 | $428,000 | $575,061 | 7 |
| 2011 | $468,000 | $597,429 | 3 |
| 2012 | $515,000 | $628,630 | 4 |
| 2013 | $547,500 | $652,868 | 4 |
| 2014 | $539,444 | $636,678 | 2 |
| 2015 | $465,000 | $551,700 | 5 |
| 2016 | $550,000 | $656,020 | 7 |
| 2017 | $475,000 | $563,313 | 5 |
| 2018 | $563,000 | $664,760 | 3 |
| 2019 | $545,000 | $639,875 | 5 |
| 2020 | $531,500 | $625,101 | 2 |
| 2021 | $505,000 | $580,490 | 6 |
| 2022 | $587,500 | $636,310 | 2 |
| 2023 | $645,888 | $667,295 | 1 |
| 2024 | $640,000 | $645,779 | 5 |
| 2025 | $670,000 | $670,000 | 7 |
| 2026 | $670,000 | $670,000 | 1 |
| Record sale | $768,000 (5-Room, 2025-11) |
|---|---|
| First recorded sale | $238,000 (1993-08) |
| Busiest year | 1999 · 20 sales |
| 10-year change (real) | +2% (+0.2%/yr, 2016→2026) |
| Total transacted | $97.1M across 258 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2026-05 | 4-Room | 07 TO 09 | 104 | $670,000 |
| 2025-11 | 4-Room | 04 TO 06 | 104 | $678,000 |
| 2025-11 | 5-Room | 01 TO 03 | 121 | $768,000 |
| 2025-08 | 4-Room | 01 TO 03 | 104 | $645,000 |
| 2025-07 | 4-Room | 01 TO 03 | 104 | $660,000 |
| 2025-06 | 4-Room | 07 TO 09 | 104 | $670,000 |
| 2025-05 | 4-Room | 10 TO 12 | 104 | $675,000 |
| 2025-02 | 4-Room | 01 TO 03 | 104 | $620,000 |
| 2024-12 | 4-Room | 04 TO 06 | 104 | $640,000 |
| 2024-10 | 4-Room | 04 TO 06 | 104 | $680,000 |
| 2024-08 | 4-Room | 01 TO 03 | 104 | $610,000 |
| 2024-06 | 5-Room | 04 TO 06 | 121 | $750,000 |
| 2024-05 | 4-Room | 01 TO 03 | 108 | $610,000 |
| 2023-12 | 4-Room | 04 TO 06 | 104 | $645,888 |
| 2022-12 | 4-Room | 10 TO 12 | 104 | $635,000 |
| 2022-01 | 4-Room | 07 TO 09 | 104 | $540,000 |
| 2021-11 | 4-Room | 07 TO 09 | 104 | $510,000 |
| 2021-09 | 4-Room | 04 TO 06 | 104 | $525,000 |
| 2021-07 | 5-Room | 01 TO 03 | 122 | $580,000 |
| 2021-05 | 4-Room | 04 TO 06 | 104 | $456,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 105 | $960,000 | $6,575/m² |
| 2. Blk 111 | $940,888 | $6,444/m² |
| 3. Blk 253 | $808,888 | $6,797/m² |
| 4. Blk 254 | $804,000 | $7,399/m² |
| 5. Blk 255 | $801,500 | $7,302/m² |
| 6. Blk 120 | $760,000 | $5,938/m² |
| 7. Blk 154 | $757,500 | $6,218/m² |
| 8. Blk 135 | $752,000 | $6,340/m² |
| 9. Blk 130 | $737,000 | $6,585/m² |
| 10. Blk 114 | $735,000 | $6,025/m² |
| 11. Blk 119 | $730,000 | $6,518/m² |
| 12. Blk 150 | $730,000 | $6,037/m² |
| 13. Blk 131 | $725,000 | $5,943/m² |
| 14. Blk 101 | $715,000 | $6,066/m² |
| 15. Blk 117 | $714,444 | $6,209/m² |
Showing the top 15 of 42 blocks.
The median resale price over the last 24 months is $670,000 (11 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 $626,870–$701,244 (central estimate $664,057). Recent sales — median $652,890 — sit within that range.
The median monthly rent is $3,550/mo over the last 12 months (7 contracts).
The block was completed in 1987 and its 99-year lease runs from 1988.