Blk 666A Yishun Ave 4 is an HDB block in Yishun (completed in 1986, 4 storeys, 16 units). As of Jul 2026, its median resale price over the last 24 months is $570,000, about 12% above the Yishun median, from 1 sales. 26 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Yishun |
|---|---|
| Completed | 1986 |
| Lease from | 1987 |
| Storeys | 4 |
| Dwelling units | 16 |
| Unit mix (sold) | 4-room ×10 · 5-room ×6 |
| Recorded resales | 26 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 4-Room | $570,000 | $5,229/m² | 1 |
On price per square metre, this block is cheaper than 94% of Yishun blocks with recent sales.
For a typical 4-room flat here, our price model estimates $455,915–$510,006 (central estimate $482,960). Recent sales — median $509,605 — 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 |
|---|---|---|---|
| 1992 | $92,000 | $162,852 | 3 |
| 1993 | $99,000 | $171,318 | 2 |
| 1994 | $240,000 | $402,853 | 1 |
| 1997 | $253,000 | $403,625 | 1 |
| 1998 | $179,500 | $287,147 | 2 |
| 1999 | $299,000 | $478,198 | 2 |
| 2000 | $286,500 | $452,108 | 2 |
| 2001 | $160,500 | $250,734 | 2 |
| 2002 | $149,000 | $233,684 | 1 |
| 2008 | $269,750 | $374,881 | 2 |
| 2010 | $345,500 | $464,214 | 2 |
| 2011 | $373,000 | $476,156 | 1 |
| 2020 | $280,000 | $329,310 | 2 |
| 2022 | $410,000 | $444,063 | 1 |
| 2024 | $590,000 | $595,328 | 2 |
| Record sale | $610,000 (5-Room, 2024-01) |
|---|---|
| First recorded sale | $59,000 (1992-06) |
| Busiest year | 1992 · 3 sales |
| Total transacted | $6.7M across 26 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2024-09 | 4-Room | 01 TO 03 | 109 | $570,000 |
| 2024-01 | 5-Room | 01 TO 03 | 121 | $610,000 |
| 2022-09 | 4-Room | 01 TO 03 | 89 | $410,000 |
| 2020-07 | 4-Room | 04 TO 06 | 83 | $280,000 |
| 2020-03 | 4-Room | 01 TO 03 | 83 | $280,000 |
| 2011-11 | 4-Room | 01 TO 03 | 89 | $373,000 |
| 2010-03 | 5-Room | 01 TO 03 | 121 | $320,000 |
| 2010-01 | 5-Room | 04 TO 06 | 121 | $371,000 |
| 2008-12 | 4-Room | 01 TO 03 | 83 | $236,500 |
| 2008-05 | 5-Room | 01 TO 03 | 121 | $303,000 |
| 2002-06 | 4-Room | 01 TO 03 | 83 | $149,000 |
| 2001-10 | 4-Room | 04 TO 06 | 83 | $155,000 |
| 2001-06 | 4-Room | 01 TO 03 | 89 | $166,000 |
| 2000-10 | 5-Room | 01 TO 03 | 121 | $308,000 |
| 2000-07 | 4-Room | 01 TO 03 | 109 | $265,000 |
| 1999-07 | 5-Room | 01 TO 03 | 121 | $303,000 |
| 1999-07 | 5-Room | 04 TO 06 | 121 | $295,000 |
| 1998-12 | 4-Room | 04 TO 06 | 83 | $169,000 |
| 1998-10 | 4-Room | 04 TO 06 | 83 | $190,000 |
| 1997-05 | 4-Room | 01 TO 03 | 83 | $253,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 652 | $1,200,000 | $6,630/m² |
| 2. Blk 666 | $1,120,000 | $6,829/m² |
| 3. Blk 654 | $997,500 | $6,082/m² |
| 4. Blk 661 | $915,444 | $6,117/m² |
| 5. Blk 664 | $905,000 | $5,754/m² |
| 6. Blk 509C | $750,000 | $6,637/m² |
| 7. Blk 665 | $750,000 | $5,682/m² |
| 8. Blk 860 | $716,500 | $5,873/m² |
| 9. Blk 509A | $708,000 | $6,460/m² |
| 10. Blk 859 | $705,944 | $5,786/m² |
| 11. Blk 657 | $690,000 | $5,702/m² |
| 12. Blk 863 | $680,000 | $5,656/m² |
| 13. Blk 508B | $680,000 | $6,667/m² |
| 14. Blk 864 | $667,500 | $5,890/m² |
| 15. Blk 673B | $666,000 | $6,989/m² |
Showing the top 15 of 46 blocks.
The median resale price over the last 24 months is $570,000 (1 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 $455,915–$510,006 (central estimate $482,960). Recent sales — median $509,605 — sit within that range.
The block was completed in 1986 and its 99-year lease runs from 1987.