Block 21 Hougang Ave 3
21 Hougang Ave 3, Singapore 530021
Block 21 Hougang Ave 3 is an HDB block in Hougang, completed in 1977, with 130 dwelling units. 3-Room flats have recently resold around S$378k (73 sqm), from 141 resales on record. The lease has approximately 52 years remaining.
What are the key facts about Block 21 Hougang Ave 3?
Block 21 Hougang Ave 3 is an HDB block in Hougang, completed in 1977, with 130 dwelling units.
- Town
- Hougang
- Planning area
- Hougang
- Completed
- 1977
- Storeys
- 12
- Total units
- 130
- Market segment
- OCR
- Median resale
- S$378k
- Last transacted
- Sept 2025
- Remaining lease
- ≈ 52 years
What are resale prices at Block 21 Hougang Ave 3?
3-Room flats have recently resold around S$378k (S$459 psf), from 141 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| 3-Room | 115 | S$358,000recent | 73 sqm | S$456 psf |
| 4-Room | 26 | S$377,400recent | 98 sqm | S$358 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 Sept 2025.
What has recently sold at Block 21 Hougang Ave 3?
Block 21 Hougang Ave 3 has 141 recorded resales; the most recent transacted at S$505,000 in Sept 2025 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| Sept 2025 | 4-Room | 01 TO 03 | 98 sqm | S$505,000 |
| Jun 2025 | 4-Room | 04 TO 06 | 98 sqm | S$519,000 |
| Feb 2025 | 4-Room | 04 TO 06 | 98 sqm | S$500,888 |
| Apr 2024 | 3-Room | 07 TO 09 | 73 sqm | S$380,000 |
| Aug 2023 | 3-Room | 04 TO 06 | 88 sqm | S$435,228 |
| Jun 2023 | 3-Room | 10 TO 12 | 73 sqm | S$378,000 |
| Apr 2023 | 3-Room | 10 TO 12 | 73 sqm | S$358,000 |
| Feb 2023 | 3-Room | 01 TO 03 | 73 sqm | S$358,888 |
| Feb 2023 | 3-Room | 10 TO 12 | 73 sqm | S$360,000 |
| Nov 2022 | 3-Room | 07 TO 09 | 73 sqm | S$400,000 |
| Apr 2022 | 3-Room | 04 TO 06 | 73 sqm | S$340,000 |
| Dec 2021 | 3-Room | 01 TO 03 | 73 sqm | S$318,000 |
What flat types are in Block 21 Hougang Ave 3?
Block 21 Hougang Ave 3 has 130 units, mostly 3-Room flats.
Unit stock by flat type, from the HDB property information dataset.
How far is Block 21 Hougang Ave 3 from MRT and schools?
The nearest MRT/LRT to Block 21 Hougang Ave 3 is Hougang MRT, about 790 m away (~12 min walk). 5 schools are within 1 km, including 2 primary schools.
Getting around
- Hougang MRT790 m · ~12 min
- Kovan MRT844 m · ~13 min
Schools nearby
Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
- Holy Innocents' Primary SchoolPrimary schoolwithin 1 km · P1 priority419 m
- Anderson Serangoon Junior CollegeJunior collegewithin 1 km501 m
- Xinghua Primary SchoolPrimary schoolwithin 1 km · P1 priority713 m
- Yuying Secondary SchoolSecondary schoolwithin 1 km803 m
- Holy Innocents' High SchoolSecondary schoolwithin 1 km979 m
- Montfort Junior SchoolPrimary school1.1 km
- Montfort Secondary SchoolSecondary school1.1 km
- Chij Our Lady Of The NativityPrimary school1.2 km
Shops, food & parks
Straight-line distances from the block. Source: PropKaki amenities data.
What does it cost to buy a flat at Block 21 Hougang Ave 3?
Buying a flat at Block 21 Hougang Ave 3 (~S$378k) needs about S$3,013/mo in income and S$1,419/mo in repayments, after S$5,940 stamp duty and a S$95k downpayment.
Illustrative, for a buyer at the recent median resale price (S$378k) — 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$5,940
BSD, tiered
Downpayment (25%)
S$95k
cash + CPF
Monthly instalment
S$1,419/mo
25y @ 3.5%
Income required
S$3,013/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 21 Hougang Ave 3
What is the resale price at Block 21 Hougang Ave 3?⌄
3-Room flats at Block 21 Hougang Ave 3 have recently resold around S$378k (73 sqm), based on HDB resale caveats. Resale prices vary by flat type, floor and remaining lease.
How much are flats at Block 21 Hougang Ave 3 by flat type?⌄
3-Room ≈ S$358k; 4-Room ≈ S$377k. Figures are median resale prices from HDB caveats.
How many years are left on the lease at Block 21 Hougang Ave 3?⌄
Block 21 Hougang Ave 3 has approximately 52 years left on its 99-year lease (completed 1977). This figure is taken from the most recent transacted flat.
How many units are in Block 21 Hougang Ave 3?⌄
Block 21 Hougang Ave 3 has 130 dwelling units across up to 12 storeys, mostly 3 room flats.
What is the nearest MRT to Block 21 Hougang Ave 3?⌄
The nearest MRT/LRT station to Block 21 Hougang Ave 3 is Hougang MRT, about 790 m away (~12 min walk).
Which primary schools are within 1 km of Block 21 Hougang Ave 3?⌄
Holy Innocents' Primary School, Xinghua Primary School are within 1 km of Block 21 Hougang Ave 3 — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
Is Block 21 Hougang Ave 3 a good place to buy an HDB resale flat?⌄
Block 21 Hougang Ave 3 sits in Hougang, in the Hougang planning area. Whether it suits you depends on your budget, the flat type, the remaining lease (≈52 years) and proximity to MRT and schools — all of which are summarised on this page from HDB resale data.
