Blk 631 Ang Mo Kio Ave 4 is an HDB block in Ang Mo Kio (completed in 1979, 11 storeys, 200 units). As of Jul 2026, its median resale price over the last 24 months is $434,000, about 31% below the Ang Mo Kio median, from 12 sales. 295 resale transactions have been recorded here since 1990.
Explore this block on the interactive map →| Town | Ang Mo Kio |
|---|---|
| Completed | 1979 |
| Lease from | 1985 |
| Storeys | 11 |
| Dwelling units | 200 |
| Unit mix (sold) | 3-room ×179 · 4-room ×19 · 5-room ×1 · exec ×1 |
| Recorded resales | 295 since 1990 |
| Flat type | Median price | Median $/m² | Sales |
|---|---|---|---|
| 3-Room | $434,000 | $6,381/m² | 12 |
Median monthly rent at this block: $2,800/mo (11 rental contracts, last 12 months).
Estimated gross rental yield: ~7.7% (Ang Mo Kio average: ~5.5%) — annual median rent over median resale price, before taxes, fees and vacancy.
On price per square metre, this block is cheaper than 31% of Ang Mo Kio blocks with recent sales.
For a typical 3-room flat here, our price model estimates $440,065–$492,276 (central estimate $466,170). Recent sales — median $427,000 — 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 | $51,500 | $96,414 | 6 |
| 1991 | $50,000 | $90,493 | 9 |
| 1992 | $54,000 | $95,587 | 2 |
| 1993 | $78,000 | $134,978 | 11 |
| 1994 | $105,000 | $176,248 | 15 |
| 1995 | $135,900 | $224,247 | 10 |
| 1996 | $188,000 | $305,994 | 14 |
| 1997 | $265,000 | $422,769 | 5 |
| 1998 | $161,750 | $258,752 | 12 |
| 1999 | $153,000 | $244,697 | 23 |
| 2000 | $165,000 | $260,377 | 9 |
| 2001 | $144,750 | $226,130 | 18 |
| 2002 | $152,500 | $239,174 | 10 |
| 2003 | $167,000 | $260,643 | 5 |
| 2004 | $170,000 | $260,961 | 11 |
| 2005 | $170,000 | $259,732 | 11 |
| 2006 | $170,000 | $257,247 | 9 |
| 2007 | $177,000 | $262,305 | 1 |
| 2008 | $230,000 | $319,639 | 5 |
| 2009 | $246,000 | $339,876 | 13 |
| 2010 | $305,000 | $409,798 | 11 |
| 2011 | $349,000 | $445,519 | 10 |
| 2012 | $342,500 | $418,069 | 4 |
| 2013 | $359,000 | $428,091 | 6 |
| 2014 | $408,500 | $482,132 | 4 |
| 2015 | $319,000 | $378,478 | 8 |
| 2016 | $325,000 | $387,648 | 7 |
| 2017 | $303,000 | $359,334 | 9 |
| 2018 | $345,000 | $407,357 | 1 |
| 2019 | $278,000 | $326,395 | 9 |
| 2020 | $275,000 | $323,430 | 4 |
| 2021 | $350,444 | $402,830 | 4 |
| 2022 | $358,500 | $388,284 | 4 |
| 2023 | $605,000 | $625,052 | 2 |
| 2024 | $488,500 | $492,911 | 2 |
| 2025 | $427,500 | $427,500 | 8 |
| 2026 | $440,000 | $440,000 | 3 |
| Record sale | $830,000 (5-Room, 2023-09) |
|---|---|
| First recorded sale | $40,000 (1990-03) |
| Busiest year | 1999 · 23 sales |
| 10-year change (real) | +14% (+1.3%/yr, 2016→2026) |
| Total transacted | $65.2M across 295 sales |
| Month | Flat type | Storey | Area (m²) | Price |
|---|---|---|---|---|
| 2026-03 | 3-Room | 10 TO 12 | 67 | $440,000 |
| 2026-03 | 3-Room | 04 TO 06 | 67 | $440,000 |
| 2026-03 | 3-Room | 07 TO 09 | 67 | $423,000 |
| 2025-12 | 3-Room | 07 TO 09 | 67 | $428,000 |
| 2025-12 | 3-Room | 10 TO 12 | 67 | $408,000 |
| 2025-10 | 3-Room | 04 TO 06 | 67 | $427,000 |
| 2025-10 | 3-Room | 07 TO 09 | 67 | $468,000 |
| 2025-09 | 3-Room | 01 TO 03 | 67 | $398,000 |
| 2025-04 | 3-Room | 10 TO 12 | 67 | $468,000 |
| 2025-04 | 3-Room | 07 TO 09 | 67 | $420,000 |
| 2025-03 | 3-Room | 04 TO 06 | 67 | $452,888 |
| 2024-12 | 3-Room | 07 TO 09 | 82 | $477,000 |
| 2024-02 | 4-Room | 04 TO 06 | 93 | $500,000 |
| 2023-09 | 5-Room | 10 TO 12 | 134 | $830,000 |
| 2023-08 | 3-Room | 10 TO 12 | 67 | $380,000 |
| 2022-11 | 3-Room | 01 TO 03 | 67 | $342,000 |
| 2022-10 | 3-Room | 10 TO 12 | 67 | $395,000 |
| 2022-02 | 3-Room | 07 TO 09 | 67 | $375,000 |
| 2022-01 | 3-Room | 10 TO 12 | 67 | $341,888 |
| 2021-11 | 4-Room | 01 TO 03 | 93 | $385,000 |
| Block | Median (24 mo) | Median $/m² |
|---|---|---|
| 1. Blk 616 | $1,100,000 | $7,383/m² |
| 2. Blk 613 | $1,090,000 | $7,276/m² |
| 3. Blk 614 | $1,050,000 | $7,047/m² |
| 4. Blk 176 | $965,000 | $7,882/m² |
| 5. Blk 618 | $938,000 | $7,000/m² |
| 6. Blk 615 | $920,000 | $6,174/m² |
| 7. Blk 617 | $865,000 | $6,586/m² |
| 8. Blk 609 | $833,888 | $6,317/m² |
| 9. Blk 111 | $800,000 | $6,838/m² |
| 10. Blk 171 | $745,000 | $6,220/m² |
| 11. Blk 619 | $713,000 | $6,664/m² |
| 12. Blk 105 | $617,500 | $6,712/m² |
| 13. Blk 254 | $590,000 | $6,020/m² |
| 14. Blk 177 | $547,500 | $5,951/m² |
| 15. Blk 175 | $540,888 | $5,879/m² |
Showing the top 15 of 47 blocks.
The median resale price over the last 24 months is $434,000 (12 sales, as of Jul 2026). See the by-type table above for 3-room vs 4-room medians.
For a typical 3-room flat here, our price model estimates $440,065–$492,276 (central estimate $466,170). Recent sales — median $427,000 — sit below that range.
The median monthly rent is $2,800/mo over the last 12 months (11 contracts).
The block was completed in 1979 and its 99-year lease runs from 1985.