Block 21 Hougang Ave 3
530021 · Lorong Ah Soo · Hougang · Built 1977 · Lease from 1978 · ~51 yrs lease left · 130 units · 12 floors
Block 21 Hougang Ave 3 in Hougang scores 72.6/100 overall on the Singapore Block Liveability Index. It is 10.9 minutes’ walk from Hougang Mrt Station MRT, 14.7 minutes from Hougang Street 21 Blk 209 (Kovan Hougang Market and Food Centre), and 420 m straight-line from Holy Innocents' Primary School.
Where it is
OneMap · SLABlock 21 Hougang Ave 3, Singapore 530021
Pillar scores
- Transport
- 72
- Food
- 75
- Schools
- 100
- Healthcare
- 67
- Daily needs
- 73
- Green space
- 88
- Connectivity
- 52
- Value (lease)
- 22
- Leisure
- 81
- EV charging
- 100
Who it suits
- Overall
- 73
- Young Families
- 77
- Seniors
- 71
- Renters
- 70
- Investors
- 58
- EV Owners
- 74
Commute by public transport
OneMap routing · weekday 08:00- Raffles Placecity centre
- 36.9min
- one-north
- 40.2min
- Jurong East
- 56.2min
- Changi Airport
- 52.2min
Getting to the city centre
weekday 08:00 · OneMap37 min door to door · S$1.98 · 2 transfers · 6 min (371 m) walking · 7 min waiting · 24 min riding
- Walk 1 min (82 m) to Blk 21
- Bus 72 · SBS Transit
Blk 21 → Hougang Ctrl Int · 3 stops · 4 min - Walk 1 min (56 m) to Hougang
- North East Line · SBS Transit
Hougang → Dhoby Ghaut · 8 stops · 17 min - Walk 3 min (205 m) to Dhoby Ghaut
- North-South Line · SMRT Corporation
Dhoby Ghaut → Raffles Place · 2 stops · 3 min - Walk 0 min (28 m) to Destination
What’s nearby
walk times, door to doorDistance from centre is real walk time (rings at 5 / 10 / 15 min); the angle only spreads categories apart — it is not compass bearing.
MRT stations
transit- Hougang Mrt Station10.9 min
- Kovan Mrt Station12.7 min
- Kovan Mrt Station13.2 min
Hawker centres
food- Hougang Street 21 Blk 209 (Kovan Hougang Market and Food Centre)14.7 min
- Hougang Ave 1 Blk 105 (Hougang 105 Hainanese Village Centre)18.8 min
- Ci Yuan Hawker Centre23.8 min
Eateries nearby
food- Ntuc Fairprice Co-Operative LtdA2.4 min
- 7 Stars (23) Pte. Ltd.2.4 min
- Thomas Anthony RozarioB2.4 min
- Badaling Holdings Pte. Ltd.6.3 min
- Long Juat SingA6.3 min
- Parvathy MuthusamyB6.3 min
Hygiene grades from SFA (NEA licensed eateries).
Supermarkets
daily- Lim King Chew8.3 min
- Tan Chuan Boon12.4 min
- Cold Storage Singapore (1983) Pte Ltd13.2 min
CHAS clinics
health- Joash Family Clinic & Surgery6.4 min
- Khoo Clinic & Surgery7.9 min
- Healthcare Hougang Medical Clinic12.7 min
Parks & green
green- Realty Park5.9 min
- Jln Naung Pg10.1 min
- Poh Huat Rd Pg16.6 min
Primary schools
straight-lineEldercare centres
care- Jia Ying Senior Activity Centre2.4 min
- Jia Ying Senior Activity Centre @ 25 (Branch)3.3 min
- Fei Yue Senior Group Home @ Hougang28 min
Community clubs
leisure- Hougang CC5.7 min
- Paya Lebar Kovan CC (Pending U/C)16.6 min
- Aljunied CC18.4 min
Libraries
leisure- Cheng San Public Library16.5 min
EV charging
ev- Blk 19-23 Hougang Avenue 3 Hougang View1 min
- Blk 15-18 Hougang Avenue 3 Hougang View4 min
- Blk 24/25 Hougang Avenue 34.8 min
What’s within a walk
OSRM foot · OneMapWithin ~10 minutes on foot: 1 supermarkets, 1 parks, 2 clinics.
Shaded areas are real pedestrian reach (OSRM foot routing), sampled on a grid — an approximate schematic, not a legal boundary.Buses near here
LTA stops · OneMap routing- Stop 632412.1 min walk · 69 m
- Stop 630613.7 min walk · 228 m
- BLK 211 min walk72
- OPP S'GOON JC3 min walk82119
- BLK 14 min walk25
Services seen boarding near this block on real OneMap public-transport routes — not a full timetable. Check the LTA / bus operator app for live arrivals.
Who lives here
Census 2020 · Hougang planning area- Age profile
- In Hougang, 12.7% of residents are under 15 and 16.3% are 65 or older.
- 55–598.4%60–648.2%25–297.7%30–347.6%
- Household income
- 38.8% of Hougang households earn $10,000 or more a month (gross, from work).
- $20,000+12.7%No working person11.3%$2,000–2,9996%$3,000–3,9995.7%
- Dwelling mix
- 77.2% of Hougang households live in HDB flats; 22.6% in condominiums or landed homes.
- HDB 4 room flats37.2%HDB 5 room and executive flats21.2%HDB 3 room flats14.6%Condominiums and other apartments14.5%
- Household size
- 37.5% of Hougang households are one or two people; 2-person households are the most common.
- 2-person22.8%4-person21.4%3-person19.9%1-person14.7%
- In education
- Of Hougang residents currently in education, 27.8% attend polytechnic or university.
- Primary31.1%Secondary24%University16.4%Polytechnic11.4%
- Commute to work
- 58.7% of working Hougang residents commute by public transport; 28.4% drive or ride.
- MRT LRT and bus28.2%Car21.4%Bus18.1%MRT LRT only10.3%
Resident data for the Hougang planning area, Census 2020 — Singapore Department of Statistics, via OneMap (Singapore Land Authority).
Can I afford this?
est. ~S$853k · executiveSet your budget to see if this block fits. Not sure? work it out from your income →
Value for money
liveability vs price · like-for-likeAmong executive HDB flats islandwide (774 compared), Blk 21 Hougang Ave 3 is more liveable than 71% of them but pricier than 62% — around S$610/psf for executive (as of 2026-06).
Percentiles rank this home only against comparable ones (executive HDB flats islandwide). A transparent price-vs-liveability comparison from real resale data — not a valuation or fair-price estimate. as of 2026-06
Is it worth it?
liveability · price trend · leaseBlock 21 offers a strong liveability score (72.6/100). On price, resale prices here have moved roughly in step with the wider market and the lease is mid-life (~51 years left).
A plain-language read, not financial advice. Liveability and lease come from the index; price signals from data.gov.sg resale transactions for Lorong Ah Soo. We do not publish a fair-price estimate.
Prices & transactions — Blk 21 Hougang Ave 3
Actual registered resale prices · source data.gov.sg · we show real sale ranges, not an estimated valuation
Recent sales at Blk 21 Hougang Ave 3
| Month | Type | Storey | Area | Price | PSF |
|---|---|---|---|---|---|
| Jun '26 | 3-room | 01 TO 03 | 73 m² | S$425k | S$541 |
| Sep '25 | 4-room | 01 TO 03 | 98 m² | S$505k | S$479 |
| Jun '25 | 4-room | 04 TO 06 | 98 m² | S$519k | S$492 |
| Feb '25 | 4-room | 04 TO 06 | 98 m² | S$501k | S$475 |
Subzone medians — Lorong Ah Soo
Latest median resale price per sq ft by flat type · 12-month change · source data.gov.sg
See what’s for sale
Browse current for-sale listings near Blk 21 Hougang Ave 3 on Singapore’s property portals. These open on third-party sites — SG Block Index doesn’t list or sell property.