Block 231 Hougang St 21
231 Hougang St 21, Singapore 530231
Block 231 Hougang St 21 is an HDB block in Hougang, completed in 1983, with 102 dwelling units. Across 143 resales on record, 5-Room flats have recently resold around S$980k (S$641 psf, 140 sqm). The lease has approximately 58 years remaining.
What are the key facts about Block 231 Hougang St 21?
Block 231 Hougang St 21 is an HDB block in Hougang, completed in 1983, with 102 dwelling units.
- Town
- Hougang
- Planning area
- Hougang
- Completed
- 1983
- Storeys
- 13
- Total units
- 102
- Flat model
- Model A-Maisonette · Model A
- Market segment
- OCR
- Median resale
- S$980k
- Last transacted
- Jan 2026
- Remaining lease
- ≈ 58 years
What are resale prices at Block 231 Hougang St 21?
5-Room flats have recently resold around S$980k (S$641 psf), from 143 resales on record (HDB caveat data).
| Flat type | Resales | Median price | Size | PSF |
|---|---|---|---|---|
| 4-Room | 30 | S$400,000recent | 109 sqm | S$341 psf |
| 5-Room | 113 | S$980,000recent | 142 sqm | S$641 psf |
Live now: 7 flats listed for sale at this block (median asking S$1.20M) and 3 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 Jan 2026.
What rent and yield does Block 231 Hougang St 21 get?
Flats at Block 231 Hougang St 21 have recently sublet for a median of S$3,000/mo, an indicative gross rental yield of about 3.7% (from 22 recent rental contracts).
Median rent
S$3,000/mo
22 recent contracts
Gross rental yield
3.7%
indicative, gross
Annual rent
S$36,000
median × 12 months
| Flat type | Contracts | Median rent |
|---|---|---|
| 4-Room | 8 | S$3,700/mo |
| 5-Room | 14 | S$2,910/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 231 Hougang St 21?
Block 231 Hougang St 21 has 143 recorded resales; the most recent transacted at S$980,000 in Jan 2026 (HDB caveat data).
| Date | Flat type | Storey | Size | Price |
|---|---|---|---|---|
| Jan 2026 | 5-Room | 04 TO 06 | 142 sqm | S$980,000 |
| Sept 2025 | 5-Room | 10 TO 12 | 142 sqm | S$1,028,000 |
| May 2025 | 5-Room | 01 TO 03 | 140 sqm | S$990,000 |
| Feb 2025 | 5-Room | 07 TO 09 | 140 sqm | S$1,070,888 |
| Aug 2024 | 5-Room | 10 TO 12 | 142 sqm | S$1,150,000 |
| Jun 2024 | 5-Room | 10 TO 12 | 142 sqm | S$1,088,000 |
| Apr 2024 | 5-Room | 04 TO 06 | 142 sqm | S$991,688 |
| Apr 2024 | 5-Room | 04 TO 06 | 140 sqm | S$900,000 |
| Mar 2024 | 5-Room | 01 TO 03 | 142 sqm | S$900,000 |
| Feb 2024 | 4-Room | 10 TO 12 | 103 sqm | S$585,000 |
| Nov 2023 | 4-Room | 10 TO 12 | 109 sqm | S$600,000 |
| Nov 2023 | 4-Room | 07 TO 09 | 109 sqm | S$615,000 |
What flat types are in Block 231 Hougang St 21?
Block 231 Hougang St 21 has 102 units, mostly 5-Room flats of the Model A-Maisonette / Model A model.
Unit stock by flat type, from the HDB property information dataset.
Where is Block 231 Hougang St 21?
Block 231 Hougang St 21 is an HDB block in Hougang.
Block 231 Hougang St 21 is an HDB block located along Hougang St 21. The block is recorded as completed around 1983, with up to 13 storeys. It has an estimated 102 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 231 Hougang St 21, Singapore 530231. 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 Kovan MRT, approximately 389m away, around 6 minutes on foot. Nearby amenities include Heartland Mall Kovan for shopping, COLD STORAGE SINGAPORE (1983) PTE LTD for groceries, Kovan Market & Food Centre for food options, Aroozoo Ave Pg for greenery and recreation, and Paya Lebar Kovan Community Club for community facilities.
How far is Block 231 Hougang St 21 from MRT and schools?
The nearest MRT/LRT to Block 231 Hougang St 21 is Kovan MRT, about 389 m away (~6 min walk). 4 schools are within 1 km, including 1 primary school.
Getting around
- Kovan MRT389 m · ~6 min
Schools nearby
Flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.
- Yuying Secondary SchoolSecondary schoolwithin 1 km278 m
- Xinghua Primary SchoolPrimary schoolwithin 1 km · P1 priority287 m
- Anderson Serangoon Junior CollegeJunior collegewithin 1 km775 m
- Paya Lebar Methodist Girls' School (Secondary)Secondary schoolwithin 1 km854 m
- Paya Lebar Methodist Girls' School (Primary)Primary school1.0 km
- Holy Innocents' Primary SchoolPrimary school1.2 km
- Xinmin Primary SchoolPrimary school1.6 km
- Xinmin Secondary SchoolSecondary school1.7 km
Shops, food & parks
Straight-line distances from the block. Source: PropKaki amenities data.
What does it cost to buy a flat at Block 231 Hougang St 21?
Buying a flat at Block 231 Hougang St 21 (~S$980k) needs about S$7,812/mo in income and S$3,680/mo in repayments, after S$24,000 stamp duty and a S$245k downpayment.
Illustrative, for a buyer at the recent median resale price (S$980k) — 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$24,000
BSD, tiered
Downpayment (25%)
S$245k
cash + CPF
Monthly instalment
S$3,680/mo
25y @ 3.5%
Income required
S$7,812/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 231 Hougang St 21? Ask what it's worth.
Recent transacted prices, what's nearby, and whether an asking price is fair.
PropKakiRecent sales at Block 231 Hougang St 21 land close to the town median — fair value, no big premium.
Frequently asked questions about Block 231 Hougang St 21
How much does a 5-Room flat at Block 231 Hougang St 21 cost?⌄
5-Room flats at Block 231 Hougang St 21 have recently resold for a median of about S$980k (S$641 psf), from 143 resales on record (HDB caveats). The exact price depends on the flat type, floor and remaining lease.
What are resale prices at Block 231 Hougang St 21 by flat type?⌄
4-Room ≈ S$400k; 5-Room ≈ S$980k (median resale, HDB caveats).
Is Block 231 Hougang St 21 worth buying given its remaining lease?⌄
Block 231 Hougang St 21 has about 58 years left on its 99-year lease (completed 1983). 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 231 Hougang St 21?⌄
Gross rental yield at Block 231 Hougang St 21 is about 3.7%, based on a median subletting rent of about S$3,000/mo against a resale price of about S$980k. 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 231 Hougang St 21?⌄
For a flat at about S$980k on a 25-year HDB-style loan, you'd need roughly S$7,812/mo in household income, with repayments around S$3,680/mo after a S$245k downpayment. First-timer grants of up to S$80,000+ (not included) lower the cash needed.
What is the nearest MRT to Block 231 Hougang St 21?⌄
The nearest MRT/LRT station to Block 231 Hougang St 21 is Kovan MRT, about 389 m away (~6 min walk).
Which primary schools are within 1 km of Block 231 Hougang St 21?⌄
Xinghua Primary School is within 1 km of Block 231 Hougang St 21 — flats within 1 km of a primary school qualify for Primary 1 (P1) registration priority.