Block 631 Ang Mo Kio Ave 4
631 Ang Mo Kio Ave 4, Singapore 560631
Block 631 Ang Mo Kio Ave 4 is an HDB block in Ang Mo Kio, completed in 1979, with 200 dwelling units. 3-Room flats have recently resold around S$428k (67 sqm), from 295 resales on record. The lease has approximately 58 years remaining.
What are the key facts about Block 631 Ang Mo Kio Ave 4?
Block 631 Ang Mo Kio Ave 4 is an HDB block in Ang Mo Kio, completed in 1979, with 200 dwelling units.
- Town
- Ang Mo Kio
- Planning area
- Ang Mo Kio
- Completed
- 1979
- Storeys
- 11
- Total units
- 200
- Market segment
- RCR
- Median resale
- S$428k
- Last transacted
- Mar 2026
- Remaining lease
- ≈ 58 years
What are resale prices at Block 631 Ang Mo Kio Ave 4?
3-Room flats have recently resold around S$428k (S$592 psf), from 295 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| 3-Room | 268 | S$428,000recent | 67 sqm | S$592 psf |
| 4-Room | 26 | S$398,888recent | 93 sqm | S$398 psf |
| 5-Room | 1 | S$830,000 | 134 sqm | S$575 psf |
“Recent” medians use the latest transactions; for older blocks the all-time median spans 30+ years and understates today’s price. Source: HDB resale caveats, through Mar 2026.
What has recently sold at Block 631 Ang Mo Kio Ave 4?
Block 631 Ang Mo Kio Ave 4 has 295 recorded resales; the most recent transacted at S$440,000 in Mar 2026 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| Mar 2026 | 3-Room | 10 TO 12 | 67 sqm | S$440,000 |
| Mar 2026 | 3-Room | 04 TO 06 | 67 sqm | S$440,000 |
| Mar 2026 | 3-Room | 07 TO 09 | 67 sqm | S$423,000 |
| Dec 2025 | 3-Room | 07 TO 09 | 67 sqm | S$428,000 |
| Dec 2025 | 3-Room | 10 TO 12 | 67 sqm | S$408,000 |
| Oct 2025 | 3-Room | 07 TO 09 | 67 sqm | S$468,000 |
| Oct 2025 | 3-Room | 04 TO 06 | 67 sqm | S$427,000 |
| Sept 2025 | 3-Room | 01 TO 03 | 67 sqm | S$398,000 |
| Apr 2025 | 3-Room | 07 TO 09 | 67 sqm | S$420,000 |
| Apr 2025 | 3-Room | 10 TO 12 | 67 sqm | S$468,000 |
| Mar 2025 | 3-Room | 04 TO 06 | 67 sqm | S$452,888 |
| Dec 2024 | 3-Room | 07 TO 09 | 82 sqm | S$477,000 |
What flat types are in Block 631 Ang Mo Kio Ave 4?
Block 631 Ang Mo Kio Ave 4 has 200 units, mostly 3-Room flats.
Unit stock by flat type, from the HDB property information dataset.
How far is Block 631 Ang Mo Kio Ave 4 from MRT and schools?
The nearest MRT/LRT to Block 631 Ang Mo Kio Ave 4 is Yio Chu Kang MRT, about 528 m away (~8 min walk). 5 schools are within 1 km, including 2 primary schools.
Getting around
- Yio Chu Kang MRT528 m · ~8 min
- Lentor MRT863 m · ~14 min
Schools nearby
Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
- Yio Chu Kang Secondary SchoolSecondary schoolwithin 1 km235 m
- Presbyterian High SchoolSecondary schoolwithin 1 km383 m
- Mayflower Primary SchoolPrimary schoolwithin 1 km · P1 priority451 m
- Anderson Primary SchoolPrimary schoolwithin 1 km · P1 priority529 m
- Chij St. Nicholas Girls' SchoolMixed-level schoolwithin 1 km988 m
- Ang Mo Kio Primary SchoolPrimary school1.1 km
- Anderson Secondary SchoolSecondary school1.3 km
- Ang Mo Kio Secondary SchoolSecondary school1.4 km
Shops, food & parks
Straight-line distances from the block. Source: PropKaki amenities data.
What does it cost to buy a flat at Block 631 Ang Mo Kio Ave 4?
Buying a flat at Block 631 Ang Mo Kio Ave 4 (~S$428k) needs about S$3,412/mo in income and S$1,607/mo in repayments, after S$7,440 stamp duty and a S$107k downpayment.
Illustrative, for a buyer at the recent median resale price (S$428k) — 25% downpayment (bank-loan basis), 25-year loan at 3.5% p.a. Rates as of May 2026. Run it for your own profile →
Buyer's Stamp Duty
S$7,440
BSD, tiered
Downpayment (25%)
S$107k
cash + CPF
Monthly instalment
S$1,607/mo
25y @ 3.5%
Income required
S$3,412/mo
MSR/TDSR @ stress rate
First-time HDB buyers pay no Additional Buyer’s Stamp Duty (ABSD) and may qualify for CPF Housing Grants of up to S$80,000+, which lower the cash required — these are not included above. An HDB concessionary loan also allows a smaller downpayment.
Frequently asked questions about Block 631 Ang Mo Kio Ave 4
What is the resale price at Block 631 Ang Mo Kio Ave 4?⌄
3-Room flats at Block 631 Ang Mo Kio Ave 4 have recently resold around S$428k (67 sqm), based on HDB resale caveats. Resale prices vary by flat type, floor and remaining lease.
How much are flats at Block 631 Ang Mo Kio Ave 4 by flat type?⌄
3-Room ≈ S$428k; 4-Room ≈ S$399k; 5-Room ≈ S$830k. Figures are median resale prices from HDB caveats.
How many years are left on the lease at Block 631 Ang Mo Kio Ave 4?⌄
Block 631 Ang Mo Kio Ave 4 has approximately 58 years left on its 99-year lease (completed 1979). This figure is taken from the most recent transacted flat.
How many units are in Block 631 Ang Mo Kio Ave 4?⌄
Block 631 Ang Mo Kio Ave 4 has 200 dwelling units across up to 11 storeys, mostly 3 room flats.
What is the nearest MRT to Block 631 Ang Mo Kio Ave 4?⌄
The nearest MRT/LRT station to Block 631 Ang Mo Kio Ave 4 is Yio Chu Kang MRT, about 528 m away (~8 min walk).
Which primary schools are within 1 km of Block 631 Ang Mo Kio Ave 4?⌄
Mayflower Primary School, Anderson Primary School are within 1 km of Block 631 Ang Mo Kio Ave 4 — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
Is Block 631 Ang Mo Kio Ave 4 a good place to buy an HDB resale flat?⌄
Block 631 Ang Mo Kio Ave 4 sits in Ang Mo Kio, in the Ang Mo Kio planning area. Whether it suits you depends on your budget, the flat type, the remaining lease (≈58 years) and proximity to MRT and schools — all of which are summarised on this page from HDB resale data.
