Blk 509B Yishun Ave 4
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A link to a single Blk 509B Yishun Ave 4 flat that’s for sale on PropertyGuru or 99.co — the flat, not a block or overview page.
What the record shows
Observed facts from official records — HDB resale transactions (Singapore Open Data Licence), HDB property information and routed distances. No account needed.
Recent resale transactions
As published by HDB, monthly. Storey is a range and the floor area is the actual registered area — the record a price is rated against.
| Month | Flat type | Model | Storey | Floor area | Lease left | Price | S$ psf |
|---|---|---|---|---|---|---|---|
| Apr 2026 | 4-room | Model A | 04 TO 06 | 93 sqm · 1,001 sqft | 91 yrs | S$560,000 | 559 |
| Mar 2026 | 4-room | Model A | 10 TO 12 | 93 sqm · 1,001 sqft | 91 yrs | S$650,000 | 649 |
| Mar 2026 | 5-room | Improved | 07 TO 09 | 113 sqm · 1,216 sqft | 91 yrs | S$743,000 | 611 |
| Feb 2026 | 4-room | Model A | 01 TO 03 | 93 sqm · 1,001 sqft | 91 yrs | S$570,000 | 569 |
| Dec 2025 | 4-room | Model A | 01 TO 03 | 93 sqm · 1,001 sqft | 91 yrs | S$570,000 | 569 |
| Nov 2025 | 5-room | Improved | 04 TO 06 | 113 sqm · 1,216 sqft | 91 yrs | S$690,000 | 567 |
| Oct 2025 | 5-room | Improved | 04 TO 06 | 113 sqm · 1,216 sqft | 91 yrs | S$680,000 | 559 |
| Sep 2025 | 5-room | Improved | 04 TO 06 | 113 sqm · 1,216 sqft | 91 yrs | S$708,000 | 582 |
| Aug 2025 | 4-room | Model A | 04 TO 06 | 93 sqm · 1,001 sqft | 91 yrs | S$612,000 | 611 |
| Jan 2025 | 4-room | Model A | 04 TO 06 | 93 sqm · 1,001 sqft | 92 yrs | S$611,000 | 610 |
Contains information from HDB resale transaction data accessed via data.gov.sg, made available under the Singapore Open Data Licence.
Blk 509B Yishun Ave 4 at a glance
The same observed facts as the table above, drawn. Nothing here is modelled — every figure is a measurement, a count or a date from the public record.
About Blk 509B Yishun Ave 4
Blk 509B Yishun Ave 4 is a 13-storey HDB block in Yishun, completed in 2016, with about 91 years remaining on its 99-year lease. The nearest MRT/LRT station is Khatib, about 0.9 km away, with Yishun the next station out (1.8 km), and 6 bus stops lie within 400 m. 2 primary schools sit within 1 km (Naval Base Primary School, Northland Primary School), and the nearest hawker centre is Yishun Park Hawker Centre. Yishun Park is the nearest park, about 1208 m away, and residents park at a multi-storey car park. The nearest supermarket is ntuc fairprice (orchid country club), about 544 m away, one of 4 within 1 km; the nearest wet market is chong pang market & food centre (2348 m); the nearest shopping mall is wisteria mall (479 m). Over the last 12 months, the 4-room median here was S$570,000 across 5 resales. Over the past 24 months, 12 resales in this block have been published by HDB. Every figure carries the date of the evidence behind it; this page was last updated 03-08-2026.
Frequently asked
How much does a 4-room flat at Blk 509B Yishun Ave 4 cost?
Over the last 12 months, 5 4-room resales were recorded here at a median of S$570,000. Whether a specific asking price is fair depends on the flat — its size, storey and remaining lease.
What is the remaining lease at Blk 509B Yishun Ave 4?
About 91 years, to 2115, as of 03-08-2026. HDB flats are on a 99-year lease.
Can I use full CPF for a flat in this block?
The remaining lease covers a buyer aged 21 or older to age 95, the threshold for unrestricted CPF use under current rules; younger buyers face pro-rated limits. This is a statement of the published rule, not financial advice.
Which MRT station is nearest to Blk 509B Yishun Ave 4?
Khatib, about 0.9 km away. The next-nearest is Yishun, about 1.8 km away.
Which primary schools are near Blk 509B Yishun Ave 4?
Within 1 km: Naval Base Primary School, Northland Primary School. The most-sought is Northland Primary School, which was 3.5× subscribed at Phase 2C in the 2025 P1 exercise. Proximity to a school within 1 km is a registration priority under MOE's P1 rules.
Where do you shop near Blk 509B Yishun Ave 4?
NTUC FairPrice (Orchid Country Club), about 544 m away, one of 4 within 1 km. The nearest wet market is Chong Pang Market & Food Centre, about 2348 m away. The nearest shopping mall is Wisteria Mall, about 479 m away.
Does Blk 509B Yishun Ave 4 have a PriceVero rating?
Yes — a block rating of B on an A–E scale, measured within HDB resales only and never compared with a condominium. The 0–100 rating for a specific flat depends on its price, which only exists when you name it.
What about Cash Over Valuation (COV) at Blk 509B Yishun Ave 4?
COV is the amount a buyer pays above HDB's official valuation — and that valuation is only issued after an Option to Purchase is granted, so nobody can know COV in advance. PriceVero does not predict valuations or COV. It rates a price against this block's lodged resales, which is the evidence available before the OTP.
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Other rated developments close to this one.