01 · Blocks
Which blocks sold for less?
Each block's median, low to high. The line runs from its cheapest sale to its dearest.
Blk 231's median is S$665 psf, the 2nd highest of 3 blocks with two or more sales.
Blk 231 Hougang St 21
Postal code 530231. Resale prices since Nov 2024:
This blockBlk 231 Hougang St 217 min to Kovan · built 1983 with the 3 blocks in grey · 4–5 room · 56 years left
Nearest stations
Kovan MRT570 m to Exit C 7 min walk
Serangoon MRT 23 min walk
Hougang MRT 28 min walk
102 homes in this block
4‑room22
5‑room80
- Completed
- 1983
- Storeys
- 13
- Lease
- 1984 to 2083
Under 39? You may get less CPF and a smaller HDB loan.
Blk 231 resale prices
S$980,000 to S$1,070,888
6 sales at Blk 231 since Nov 2024 · median S$665 psf
| Month | Storey | Size | Model | Price | PSF |
|---|---|---|---|---|---|
| Sep 2026 | 4–6 | 140 m² · 1507 sq ft | Model A-Maisonette | S$988,888 | S$656 |
| Aug 2026 | 7–9 | 140 m² · 1507 sq ft | Model A-Maisonette | S$1,040,000 | S$690 |
| Jan 2026 | 4–6 | 142 m² · 1528 sq ft | Model A-Maisonette | S$980,000 | S$641 |
| Sep 2025 | 10–12 | 142 m² · 1528 sq ft | Model A-Maisonette | S$1,028,000 | S$673 |
| May 2025 | 1–3 | 140 m² · 1507 sq ft | Model A-Maisonette | S$990,000 | S$657 |
| Feb 2025 | 7–9 | 140 m² · 1507 sq ft | Model A-Maisonette | S$1,070,888 | S$711 |
Against the blocks around it
5‑room sales since Nov 2024 at Blk 231, one block built with it and three other blocks within 250 m with leases from 1981 to 1987. In S$ per sq ft, so sizes compare.
02 · Floors
Do higher floors cost more?
The median for each storey band, across the same blocks.
Storeys 10–12 sold for more per sq ft than storeys 1–3.
03 · Months
How have prices moved?
Each month's median across these blocks, with a line from its cheapest sale to its dearest and the number sold. Blk 231's own sales.
The median went from S$661 psf in the first year to S$664 in the past year.
No 4‑room resales at Blk 231
Nothing since Nov 2024. The charts show the blocks around it.
Against the blocks around it
4‑room sales since Nov 2024 at four blocks within 250 m with leases from 1981 to 1987. In S$ per sq ft, so sizes compare.
01 · Blocks
Which blocks sold for less?
Each block's median, low to high. The line runs from its cheapest sale to its dearest.
No 4‑room flats at Blk 231 resold since Nov 2024.
02 · Floors
Do higher floors cost more?
The median for each storey band, across the same blocks.
Storeys 10–12 sold for more per sq ft than storeys 1–3.
03 · Months
How have prices moved?
Each month's median across these blocks, with a line from its cheapest sale to its dearest and the number sold. Blk 231's own sales.
10 of 24 months had a 4‑room sale.
Blk 231 rents
S$3,750, S$3,900, S$4,400 and S$4,500 a month
Four 5‑room rentals at Blk 231 since Nov 2024
Blk 231 nine other blocks around it Median across all of them
Each dot is a rental HDB approved since Nov 2024. Owners declare the rent and HDB doesn't check it, so treat single rentals with care.
Primary schools near Blk 231
Within 1 km · 2
- 1Xinghua Primary School180 m
- 2Paya Lebar Methodist Girls' School (Primary)750 m
1 to 2 km · 6
- 3Holy Innocents' Primary SchoolClose to the 1 km line1.1 km
- 4Xinmin Primary School1.5 km
- 5Montfort Junior School1.6 km
- 6Zhonghua Primary School1.8 km
- 7CHIJ Our Lady of the Nativity1.9 km
- 8Maris Stella High School1.9 km
Distances are straight lines from Blk 231 to each school's grounds, as MOE measures for Primary 1. Check ones near 1 km on OneMap.
Viewing a flat at Blk 231?
We're building an iPhone app for booking HDB viewings yourself. Share the PropertyGuru listing in and it gives you a link to send the seller's agent, so they can pick a slot when you're free.
Early access on TestFlight · iPhone
Before the viewing: What to WhatsApp the agent · The viewing checklist
Around Blk 231
Look up another block
Block details, resale prices and rentals come from HDB, building outlines from HDB's Existing Building dataset, MRT exits from LTA, schools from MOE and school grounds from URA's Master Plan, all published on data.gov.sg. Walking routes and map tiles are from OneMap by the Singapore Land Authority. Updated 26 Oct 2026.