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. Across 142 resales on record, 3-Room flats have recently resold around S$380k (S$475 psf, 73 sqm). The lease has approximately 51 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
- Flat model
- New Generation
- Market segment
- OCR
- Median resale
- S$380k
- Last transacted
- Jun 2026
- Remaining lease
- ≈ 51 years
What are resale prices at Block 21 Hougang Ave 3?
3-Room flats have recently resold around S$380k (S$475 psf), from 142 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| 3-Room | 116 | S$358,888recent | 73 sqm | S$457 psf |
| 4-Room | 26 | S$377,400recent | 98 sqm | S$358 psf |
Live now: 3 flats listed for sale at this block (median asking S$450k) and 2 for rent — search all listings.
“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 Jun 2026.
What rent and yield does Block 21 Hougang Ave 3 get?
Flats at Block 21 Hougang Ave 3 have recently sublet for a median of S$2,800/mo, an indicative gross rental yield of about 8.8% (from 24 recent rental contracts).
Median rent
S$2,800/mo
24 recent contracts
Gross rental yield
8.8%
indicative, gross
Annual rent
S$33,600
median × 12 months
| Flat type | Contracts | Median rent |
|---|---|---|
| 3-Room | 24 | S$2,800/mo |
HDB subletting requires the flat owner to have met the 5-year Minimum Occupation Period (MOP), so the rental sample per block is small — treat the yield as indicative. Latest contract Mar 2026. Source: HDB rental (subletting) data.
What has recently sold at Block 21 Hougang Ave 3?
Block 21 Hougang Ave 3 has 142 recorded resales; the most recent transacted at S$425,000 in Jun 2026 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| Jun 2026 | 3-Room | 01 TO 03 | 73 sqm | S$425,000 |
| 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 |
What flat types are in Block 21 Hougang Ave 3?
Block 21 Hougang Ave 3 has 130 units, mostly 3-Room flats of the New Generation model.
Unit stock by flat type, from the HDB property information dataset.
Where is Block 21 Hougang Ave 3?
Block 21 Hougang Ave 3 is an HDB block in Hougang.
Block 21 Hougang Ave 3 is an HDB block located along Hougang Ave 3. The block is recorded as completed around 1977, with up to 12 storeys. It has an estimated 130 residential units based on the HDB property information dataset. Flat types in the block include 3-room, 4-room, 5-room, and executive units.
The address is Block 21 Hougang Ave 3, Singapore 530021. It is part of District 19, Serangoon Garden / Hougang / Punggol, the Hougang planning area. The block falls within the North-East Region and the OCR market segment.
The nearest rail connection is Hougang MRT, approximately 790m away, around 12 minutes on foot. Nearby amenities include Heartland Mall Kovan for shopping, LIM KING CHEW for groceries, Kovan Market & Food Centre for food options, Realty Park for greenery and recreation, Hougang Polyclinic for polyclinic services, and Hougang Community Club for community facilities.
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$380k) needs about S$3,029/mo in income and S$1,427/mo in repayments, after S$6,000 stamp duty and a S$95k downpayment.
Illustrative, for a buyer at the recent median resale price (S$380k) — 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$6,000
BSD, tiered
Downpayment (25%)
S$95k
cash + CPF
Monthly instalment
S$1,427/mo
25y @ 3.5%
Income required
S$3,029/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.
Wondering whether it will hold its value? See do HDB flats actually make money? →
Eyeing Block 21 Hougang Ave 3? Ask what it's worth.
Recent transacted prices, what's nearby, and whether an asking price is fair.
PropKakiRecent sales at Block 21 Hougang Ave 3 land close to the town median — fair value, no big premium.
Frequently asked questions about Block 21 Hougang Ave 3
How much does a 3-Room flat at Block 21 Hougang Ave 3 cost?⌄
3-Room flats at Block 21 Hougang Ave 3 have recently resold for a median of about S$380k (S$475 psf), from 142 resales on record (HDB caveats). The exact price depends on the flat type, floor and remaining lease.
What are resale prices at Block 21 Hougang Ave 3 by flat type?⌄
3-Room ≈ S$359k; 4-Room ≈ S$377k (median resale, HDB caveats).
Is Block 21 Hougang Ave 3 worth buying given its remaining lease?⌄
Block 21 Hougang Ave 3 has about 51 years left on its 99-year lease (completed 1977). Below ~60 years, CPF usage and the maximum loan start to taper with the buyer's age, so check financing before committing. The figure is taken from the most recent transacted flat.
What is the rental yield at Block 21 Hougang Ave 3?⌄
Gross rental yield at Block 21 Hougang Ave 3 is about 8.8%, based on a median subletting rent of about S$2,800/mo against a resale price of about S$380k. HDB subletting requires the owner to have met the 5-year MOP, so the per-block sample is small — treat this as indicative.
How much do I need to earn to buy a flat at Block 21 Hougang Ave 3?⌄
For a flat at about S$380k on a 25-year HDB-style loan, you'd need roughly S$3,029/mo in household income, with repayments around S$1,427/mo after a S$95k downpayment. First-timer grants of up to S$80,000+ (not included) lower the cash needed.
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.