Block 421 Hougang Ave 10
421 Hougang Ave 10, Singapore 530421
Block 421 Hougang Ave 10 is an HDB block in Hougang, completed in 1988, with 84 dwelling units. Across 75 resales on record, 4-Room flats have recently resold around S$530k (S$443 psf, 108 sqm). The lease has approximately 63 years remaining.
What are the key facts about Block 421 Hougang Ave 10?
Block 421 Hougang Ave 10 is an HDB block in Hougang, completed in 1988, with 84 dwelling units.
- Town
- Hougang
- Planning area
- Hougang
- Completed
- 1988
- Storeys
- 13
- Total units
- 84
- Flat model
- Model A · Improved
- Market segment
- OCR
- Median resale
- S$530k
- Last transacted
- Jul 2025
- Remaining lease
- ≈ 63 years
What are resale prices at Block 421 Hougang Ave 10?
4-Room flats have recently resold around S$530k (S$443 psf), from 75 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| 4-Room | 53 | S$450,000recent | 105 sqm | S$386 psf |
| 5-Room | 22 | S$430,000recent | 122 sqm | S$308 psf |
Live now: 4 flats listed for sale at this block (median asking S$760k) and 4 for rent (median S$1,000/mo) — 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 Jul 2025.
What rent and yield does Block 421 Hougang Ave 10 get?
Flats at Block 421 Hougang Ave 10 have recently sublet for a median of S$3,000/mo, an indicative gross rental yield of about 6.8% (from 22 recent rental contracts).
Median rent
S$3,000/mo
22 recent contracts
Gross rental yield
6.8%
indicative, gross
Annual rent
S$36,000
median × 12 months
| Flat type | Contracts | Median rent |
|---|---|---|
| 5-Room | 6 | S$2,450/mo |
| 4-Room | 16 | S$3,000/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 May 2026. Source: HDB rental (subletting) data.
What has recently sold at Block 421 Hougang Ave 10?
Block 421 Hougang Ave 10 has 75 recorded resales; the most recent transacted at S$745,000 in Jul 2025 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| Jul 2025 | 4-Room | 13 TO 15 | 113 sqm | S$745,000 |
| Jan 2025 | 4-Room | 04 TO 06 | 113 sqm | S$700,000 |
| Nov 2024 | 5-Room | 13 TO 15 | 122 sqm | S$780,000 |
| May 2024 | 5-Room | 04 TO 06 | 122 sqm | S$706,000 |
| Feb 2024 | 4-Room | 07 TO 09 | 105 sqm | S$620,000 |
| Sept 2022 | 4-Room | 10 TO 12 | 103 sqm | S$530,000 |
| Apr 2022 | 4-Room | 07 TO 09 | 108 sqm | S$515,000 |
| Jun 2021 | 4-Room | 07 TO 09 | 103 sqm | S$450,000 |
| Jun 2020 | 4-Room | 13 TO 15 | 105 sqm | S$430,000 |
| May 2020 | 4-Room | 04 TO 06 | 113 sqm | S$450,000 |
| Mar 2020 | 4-Room | 07 TO 09 | 108 sqm | S$425,000 |
| May 2017 | 5-Room | 10 TO 12 | 131 sqm | S$582,000 |
What flat types are in Block 421 Hougang Ave 10?
Block 421 Hougang Ave 10 has 84 units, mostly 4-Room flats of the Model A / Improved model.
Unit stock by flat type, from the HDB property information dataset.
Where is Block 421 Hougang Ave 10?
Block 421 Hougang Ave 10 is an HDB block in Hougang.
Block 421 Hougang Ave 10 is an HDB block located along Hougang Ave 10. The block is recorded as completed around 1988, with up to 13 storeys. It has an estimated 84 residential units based on the HDB property information dataset. Flat types in the block include 4-room and 5-room units.
The address is Block 421 Hougang Ave 10, Singapore 530421. 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 528m away, around 8 minutes on foot. Nearby amenities include Hougang Mall for shopping, NTUC Fairprice Co-operative Ltd for groceries, Buangkok Hawker Centre for food options, Punggol Pk for greenery and recreation, Hougang Polyclinic for polyclinic services, and Punggol Park Community Centre for community facilities.
How far is Block 421 Hougang Ave 10 from MRT and schools?
The nearest MRT/LRT to Block 421 Hougang Ave 10 is Hougang MRT, about 528 m away (~8 min walk). 9 schools are within 1 km, including 5 primary schools.
Getting around
- Hougang MRT528 m · ~8 min
- Buangkok MRT847 m · ~13 min
Schools nearby
Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
- Punggol Primary SchoolPrimary schoolwithin 1 km · P1 priority265 m
- Chij Our Lady Of The NativityPrimary schoolwithin 1 km · P1 priority395 m
- Holy Innocents' High SchoolSecondary schoolwithin 1 km470 m
- Montfort Junior SchoolPrimary schoolwithin 1 km · P1 priority628 m
- Montfort Secondary SchoolSecondary schoolwithin 1 km665 m
- North Vista Secondary SchoolSecondary schoolwithin 1 km805 m
- Serangoon Secondary SchoolSecondary schoolwithin 1 km828 m
- North Vista Primary SchoolPrimary schoolwithin 1 km · P1 priority834 m
Shops, food & parks
Straight-line distances from the block. Source: PropKaki amenities data.
What does it cost to buy a flat at Block 421 Hougang Ave 10?
Buying a flat at Block 421 Hougang Ave 10 (~S$530k) needs about S$4,225/mo in income and S$1,990/mo in repayments, after S$10,500 stamp duty and a S$133k downpayment.
Illustrative, for a buyer at the recent median resale price (S$530k) — 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$10,500
BSD, tiered
Downpayment (25%)
S$133k
cash + CPF
Monthly instalment
S$1,990/mo
25y @ 3.5%
Income required
S$4,225/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 421 Hougang Ave 10? Ask what it's worth.
Recent transacted prices, what's nearby, and whether an asking price is fair.
PropKakiRecent sales at Block 421 Hougang Ave 10 land close to the town median — fair value, no big premium.
Frequently asked questions about Block 421 Hougang Ave 10
How much does a 4-Room flat at Block 421 Hougang Ave 10 cost?⌄
4-Room flats at Block 421 Hougang Ave 10 have recently resold for a median of about S$530k (S$443 psf), from 75 resales on record (HDB caveats). The exact price depends on the flat type, floor and remaining lease.
What are resale prices at Block 421 Hougang Ave 10 by flat type?⌄
4-Room ≈ S$450k; 5-Room ≈ S$430k (median resale, HDB caveats).
Is Block 421 Hougang Ave 10 worth buying given its remaining lease?⌄
Block 421 Hougang Ave 10 has about 63 years left on its 99-year lease (completed 1988). That's a long runway, so CPF usage and bank financing are generally unrestricted. The figure is taken from the most recent transacted flat.
What is the rental yield at Block 421 Hougang Ave 10?⌄
Gross rental yield at Block 421 Hougang Ave 10 is about 6.8%, based on a median subletting rent of about S$3,000/mo against a resale price of about S$530k. 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 421 Hougang Ave 10?⌄
For a flat at about S$530k on a 25-year HDB-style loan, you'd need roughly S$4,225/mo in household income, with repayments around S$1,990/mo after a S$133k downpayment. First-timer grants of up to S$80,000+ (not included) lower the cash needed.
What is the nearest MRT to Block 421 Hougang Ave 10?⌄
The nearest MRT/LRT station to Block 421 Hougang Ave 10 is Hougang MRT, about 528 m away (~8 min walk).
Which primary schools are within 1 km of Block 421 Hougang Ave 10?⌄
Punggol Primary School, Chij Our Lady Of The Nativity, Montfort Junior School, North Vista Primary School are within 1 km of Block 421 Hougang Ave 10 — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.