Blk 666 Hougang Ave 4 is an HDB block in Hougang (completed in 1987, 4 storeys, 32 units). As of Jul 2026, its median resale price over the last 24 months is $646,500, about 14% above the Hougang median, from 2 sales. 23 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Hougang |
|---|---|
| Completed | 1987 |
| Lease from | 1988 |
| Storeys | 4 |
| Dwelling units | 32 |
| Unit mix (sold) | 4-room ×20 · 5-room ×12 |
| Recorded resales | 23 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 4-Room | $633,000 | $5,703/m² | 1 |
| 5-Room | $660,000 | $5,410/m² | 1 |
Median monthly rent at this block: $2,800/mo (2 rental contracts, last 12 months).
Estimated gross rental yield: ~5.2% (Hougang average: ~6.4%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 94% of Hougang blocks with recent sales.
For a typical 4-room flat here, our price model estimates $532,057–$595,182 (central estimate $563,619). Recent sales — median $557,485 — 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 | $232,500 | $402,338 | 2 |
| 1994 | $225,000 | $377,675 | 1 |
| 1995 | $315,000 | $519,778 | 1 |
| 1997 | $360,000 | $574,328 | 1 |
| 1998 | $350,000 | $559,897 | 1 |
| 1999 | $335,000 | $535,774 | 3 |
| 2000 | $285,000 | $449,741 | 1 |
| 2001 | $286,000 | $446,791 | 1 |
| 2002 | $258,000 | $404,635 | 1 |
| 2003 | $281,000 | $438,566 | 1 |
| 2004 | $290,000 | $445,169 | 1 |
| 2007 | $276,000 | $409,018 | 2 |
| 2009 | $300,000 | $414,482 | 1 |
| 2014 | $400,000 | $472,099 | 1 |
| 2018 | $345,000 | $407,357 | 1 |
| 2021 | $415,000 | $477,037 | 1 |
| 2022 | $445,000 | $481,971 | 1 |
| 2025 | $633,000 | $633,000 | 1 |
| 2026 | $660,000 | $660,000 | 1 |
| Record sale | $660,000 (5-Room, 2026-03) |
|---|---|
| First recorded sale | $223,000 (1993-07) |
| Busiest year | 1999 · 3 sales |
| Total transacted | $7.9M across 23 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2026-03 | 5-Room | 01 TO 03 | 122 | $660,000 |
| 2025-09 | 4-Room | 01 TO 03 | 111 | $633,000 |
| 2022-01 | 4-Room | 01 TO 03 | 108 | $445,000 |
| 2021-02 | 4-Room | 01 TO 03 | 103 | $415,000 |
| 2018-02 | 4-Room | 04 TO 06 | 103 | $345,000 |
| 2014-03 | 4-Room | 01 TO 03 | 111 | $400,000 |
| 2009-08 | 4-Room | 01 TO 03 | 108 | $300,000 |
| 2007-11 | 5-Room | 01 TO 03 | 122 | $282,000 |
| 2007-03 | 5-Room | 01 TO 03 | 128 | $270,000 |
| 2004-05 | 4-Room | 01 TO 03 | 108 | $290,000 |
| 2003-01 | 5-Room | 01 TO 03 | 128 | $281,000 |
| 2002-03 | 4-Room | 01 TO 03 | 111 | $258,000 |
| 2001-01 | 4-Room | 01 TO 03 | 112 | $286,000 |
| 2000-02 | 4-Room | 01 TO 03 | 108 | $285,000 |
| 1999-11 | 5-Room | 01 TO 03 | 128 | $350,000 |
| 1999-07 | 5-Room | 04 TO 06 | 122 | $335,000 |
| 1999-03 | 5-Room | 01 TO 03 | 122 | $330,000 |
| 1998-11 | 5-Room | 04 TO 06 | 122 | $350,000 |
| 1997-08 | 5-Room | 04 TO 06 | 122 | $360,000 |
| 1995-09 | 5-Room | 01 TO 03 | 122 | $315,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 579 | $910,000 | $6,500/m² |
| 2. Blk 578 | $900,000 | $6,475/m² |
| 3. Blk 577 | $887,500 | $6,339/m² |
| 4. Blk 919 | $763,444 | $6,362/m² |
| 5. Blk 576 | $737,500 | $6,171/m² |
| 6. Blk 580 | $669,444 | $6,120/m² |
| 7. Blk 666 | $646,500 | $5,556/m² |
| 8. Blk 665 | $630,000 | $6,081/m² |
| 9. Blk 662 | $615,000 | $6,324/m² |
| 10. Blk 667 | $600,000 | $6,038/m² |
| 11. Blk 602 | $580,000 | $6,113/m² |
| 12. Blk 608 | $560,000 | $5,385/m² |
| 13. Blk 601 | $553,000 | $6,583/m² |
| 14. Blk 605 | $550,000 | $6,475/m² |
| 15. Blk 603 | $549,444 | $6,135/m² |
Showing the top 15 of 19 blocks.
The median resale price over the last 24 months is $646,500 (2 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 $532,057–$595,182 (central estimate $563,619). Recent sales — median $557,485 — sit within that range.
The median monthly rent is $2,800/mo over the last 12 months (2 contracts).
The block was completed in 1987 and its 99-year lease runs from 1988.