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 421 ranks the 4th highest of 10 blocks with two or more sales.
Blk 421 Hougang Ave 10
Postal code 530421. Resale prices since Nov 2024:
This blockBlk 421 Hougang Ave 109 min to Hougang · built 1988 with the 1 block in grey · 4–5 room · 61 years left
Built together · 2 blocks
420421
Nearest stations
Hougang MRT740 m to Exit C 9 min walk
Buangkok MRT 13 min walk
Ranggung LRT 15 min walk
84 homes in this block
4‑room60
5‑room24
- Completed
- 1988
- Storeys
- 13
- Lease
- 1989 to 2088
Under 34? You may get less CPF and a smaller HDB loan.
Blk 421 resale prices
S$700,000 to S$745,000
Two sales at Blk 421 since Nov 2024 · S$576 and S$613 psf
| Month | Storey | Size | Model | Price | PSF |
|---|---|---|---|---|---|
| Jul 2025 | 13–15 | 113 m² · 1216 sq ft | Model A | S$745,000 | S$613 |
| Jan 2025 | 4–6 | 113 m² · 1216 sq ft | Model A | S$700,000 | S$576 |
Against the blocks around it
4‑room sales since Nov 2024 at Blk 421, one block built with it and 12 other blocks within 250 m with leases from 1986 to 1992. In S$ per sq ft, so sizes compare.
02 · Floors
Do higher floors cost more?
The median for each storey band, across the same blocks.
Storeys 13–15 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 421's own sales.
The median went from S$594 psf in the first year to S$576 in the past year.
S$780,000
One 5‑room sale at Blk 421, in Nov 2024 · S$594 psf
| Month | Storey | Size | Model | Price | PSF |
|---|---|---|---|---|---|
| Nov 2024 | 13–15 | 122 m² · 1313 sq ft | Improved | S$780,000 | S$594 |
Against the blocks around it
5‑room sales since Nov 2024 at Blk 421, one block built with it and six other blocks within 250 m with leases from 1986 to 1992. In S$ 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.
Blk 421's one sale was S$594 psf.
02 · Floors
Do higher floors cost more?
The median for each storey band, across the same blocks.
Storeys 13–15 sold for more per sq ft than storeys 4–6.
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 421's own sales.
7 of 24 months had a 5‑room sale.
Blk 421 rents
S$3,300 to S$3,800 a month
What most 4‑room flats here rent for: 7 rentals at Blk 421 since Nov 2024, median S$3,600
Blk 421 20 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 421
Within 1 km · 7
- 1Punggol Primary School170 m
- 2CHIJ Our Lady of the Nativity310 m
- 3Montfort Junior School530 m
- 4North Vista Primary School780 m
- 5Holy Innocents' Primary SchoolClose to the 1 km line920 m
- 6Palm View Primary SchoolClose to the 1 km line920 m
- 7Yio Chu Kang Primary SchoolClose to the 1 km line980 m
1 to 2 km · 7
- 8Xinmin Primary School1.2 km
- 9Hougang Primary School1.5 km
- 10Seng Kang Primary School1.6 km
- 11North Spring Primary School1.6 km
- 12Anchor Green Primary School1.8 km
- 13Nan Chiau Primary School1.8 km
- 14Xinghua Primary School1.9 km
Distances are straight lines from Blk 421 to each school's grounds, as MOE measures for Primary 1. Check ones near 1 km on OneMap.
Viewing a flat at Blk 421?
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 421
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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.