509 Serangoon North Avenue 4
In Serangoon · Singapore 550509
Median price per sqftlast 12 months
$481$555$577$597$626$782
- 509 Serangoon North Avenue 4
- 1km radius
- MRT/LRT, in its line colour
- School
- Supermarket
- Hawker centre
- No sale in that time
233 HDB blocks · tap one for its page
Supermarkets © OpenStreetMap contributorsAbout this block
- Completed
- 1996
- 30 years ago
- Lease left
- 70 years
- 99-year lease from 1997
- Height
- 8 storeys
- Flats
- 87
- 66 4-room · 21 5-room
- In the block
- Shops
- Postal code
- 550509
Statistics
Price
- Average
- $635,000
- Median
- $635,000
- Median per sqft
- $584 psf
- Highest sale
- $660,000
- 101 sqm 4 Room · Jan 2026
- Lowest sale
- $610,000
- 101 sqm 4 Room · Nov 2025
Compared to
- Vs street average
- -23%
- Vs town average
- -11%
- Vs citywide average
- -4%
Activity
- Transactions
- 2
- Avg per month
- 0.2
By flat type
- 4 Room
- $635,000
Nearby
What's a flat here worth?
An estimate from recent sales of the same flat type in the block, along the street and within 500m.
Likely sale price
$610K – $650K$610,000 – $650,000
Midpoint $628,000 · about $567 psf for 103 sqm
Where comparable sales landed, at your flat's size
Good confidence · 37 sales
2 same block · 28 same street · 7 within 500m · 4-room flats, past 12 months
Show the sales it's based on
| Where | Month | Block | Storey | Area (sqm) | Lease left | Price | Per sqft |
|---|---|---|---|---|---|---|---|
| Same block | Jan 2026 | 509 Serangoon North Avenue 4 | 04 to 06 | 101 | 70 years | $660,000 | $607 psf |
| Same block | Nov 2025 | 509 Serangoon North Avenue 4 | 04 to 06 | 101 | 71 years | $610,000 | $561 psf |
| Same street | Oct 2026 | 529 Serangoon North Avenue 4 | 04 to 06 | 110 | 65 years | $666,000 | $562 psf |
| Same street | Sept 2026 | 528 Serangoon North Avenue 4 | 04 to 06 | 110 | 65 years | $678,000 | $573 psf |
| Same street | Aug 2026 | 523 Serangoon North Avenue 4 | 04 to 06 | 104 | 65 years | $653,000 | $583 psf |
| Same street | Aug 2026 | 534 Serangoon North Avenue 4 | 10 to 12 | 104 | 65 years | $640,000 | $572 psf |
| Same street | Aug 2026 | 511 Serangoon North Avenue 4 | 04 to 06 | 100 | 70 years | $670,000 | $622 psf |
| Same street | Aug 2026 | 533 Serangoon North Avenue 4 | 10 to 12 | 104 | 65 years | $615,000 | $549 psf |
| Same street | Aug 2026 | 532 Serangoon North Avenue 4 | 01 to 03 | 103 | 65 years | $608,000 | $548 psf |
| Same street | Jul 2026 | 522 Serangoon North Avenue 4 | 04 to 06 | 103 | 65 years | $715,000 | $645 psf |
| Same street | Jul 2026 | 535A Serangoon North Avenue 4 | 07 to 09 | 104 | 65 years | $623,888 | $557 psf |
| Same street | Jul 2026 | 533 Serangoon North Avenue 4 | 07 to 09 | 104 | 65 years | $678,888 | $606 psf |
| Same street | Jun 2026 | 517 Serangoon North Avenue 4 | 10 to 12 | 104 | 65 years | $678,000 | $606 psf |
| Same street | Jun 2026 | 540 Serangoon North Avenue 4 | 04 to 06 | 104 | 65 years | $645,000 | $576 psf |
| Same street | Jun 2026 | 532 Serangoon North Avenue 4 | 04 to 06 | 103 | 65 years | $610,000 | $550 psf |
And 22 more further away or earlier.
The middle half of these sales' price per sqft, at your flat's size: blocks of a similar age come first, and sales in your own block count most. An estimate from public sale records, not a valuation: condition, renovation and the exact floor all move the real price.
Use $628,000 in the Sell calculator →Price trend
509 Serangoon North Avenue 4 has 31 recorded sales — never more than a couple in any one month, which is too few to chart a monthly median against. The sales themselves are listed below.
Fun facts
Records, rankings and quirks from every sale recorded here.
Records
7 factsThe biggest, smallest, highest and priciest sales on record.
Largest unit sold
120 sqm
The largest unit sold here was a 120 sqm 5 Room, for $690,000 in Apr 2024.
Smallest unit sold
101 sqm
The smallest unit sold here was a 101 sqm 4 Room, for $600,000 in Apr 2024.
Longest lease left
74 years
The longest remaining lease sold here was 74 years, on a 102 sqm 4 Room.
Shortest lease left
70 years
The shortest remaining lease sold here was 70 years, on a 101 sqm 4 Room.
Highest floor sold
Storeys 07 to 09
The highest-floor sale here was on storeys 07 to 09, a 102 sqm 4 Room.
Lowest floor sold
Storeys 01 to 03
The lowest-floor sale here was on storeys 01 to 03, a 101 sqm 4 Room.
Priciest 5 room ever
$1,728,000
The most expensive 5 room ever sold citywide went for $1,728,000 on Henderson Rd in Bukit Merah.
Percentiles
6 factsWhere sales here rank against the rest of Singapore.
Price vs 5 room flats citywide
54th percentile
A 120 sqm 5 room sale here ranks in the 54th percentile among all 5 room flats sold citywide over the same period.
Price vs similar-sized flats
60th percentile
For its 120 sqm, this sale is in the 60th percentile among similarly-sized flats sold across Singapore over the same period.
Price vs 5 room flats in Serangoon
32nd percentile
Within Serangoon alone, that sale is in the 32nd percentile for a 5 room.
Remaining lease, citywide
49th percentile
This flat's remaining lease (72 years) ranks in the 49th percentile among all flats sold citywide over the same period.
Floor height, citywide
40th percentile
This flat's floor (storeys 04 to 06) ranks in the 40th percentile among all flats sold citywide over the same period.
Age among Serangoon's blocks
4th percentile
Completed in 1996, this block is newer than 93% of HDB blocks in Serangoon.
Comparisons
4 factsHow prices stack up against the town and the city.
vs the Serangoon average
-6%
Prices here run 6% below the Serangoon average.
vs the citywide average
+1%
Citywide, that's 1% above the national average.
Towns by average price
#9 of 26
Serangoon ranks 9th out of 26 towns by average resale price.
Towns by 2-year price growth
#7 of 26
Serangoon ranks 7th out of 26 towns for price growth over the past 2 years (+13%).
Nearby
1 factHow far it is to trains, schools and the city centre.
To Raffles Place
10.2km
This location is about 10.2km from the city center (Raffles Place).
Trends
3 factsWhich way prices and sales are heading.
Busiest month: Apr 2024
2 sales
The busiest month here was Apr 2024, with 2 transactions.
Since the last resale
9 mo
It's been about 9 months since the last resale here.
Busiest month: Aug 2018
2 sales
The busiest month ever recorded here was Aug 2018, with 2 sales; the quietest active month saw just 1, in Dec 2011.
Transactions
| Jan 2026 | Serangoon | 509 | Serangoon North Avenue 4 | 4 Room | Model A | 04 to 06 | 101 | 70 years | $660,000 | $607 psf |
| Nov 2025 | Serangoon | 509 | Serangoon North Avenue 4 | 4 Room | Model A | 04 to 06 | 101 | 71 years | $610,000 | $561 psf |
| Jul 2025 | Serangoon | 509 | Serangoon North Avenue 4 | 4 Room | Model A | 01 to 03 | 101 | 71 years | $623,000 | $573 psf |
| Jun 2025 | Serangoon | 509 | Serangoon North Avenue 4 | 4 Room | Model A | 07 to 09 | 102 | 71 years | $646,888 | $589 psf |
| Apr 2024 | Serangoon | 509 | Serangoon North Avenue 4 | 5 Room | Improved | 04 to 06 | 120 | 72 years | $690,000 | $534 psf |
| Apr 2024 | Serangoon | 509 | Serangoon North Avenue 4 | 4 Room | Model A | 04 to 06 | 101 | 72 years | $600,000 | $552 psf |
| Jan 2023 | Serangoon | 509 | Serangoon North Avenue 4 | 4 Room | Model A | 04 to 06 | 102 | 73 years | $520,000 | $474 psf |
| Dec 2022 | Serangoon | 509 | Serangoon North Avenue 4 | 4 Room | Model A | 04 to 06 | 102 | 74 years | $520,000 | $474 psf |
| Jan 2021 | Serangoon | 509 | Serangoon North Avenue 4 | 5 Room | Improved | 04 to 06 | 120 | 75 years | $535,000 | $414 psf |
| Mar 2020 | Serangoon | 509 | Serangoon North Avenue 4 | 4 Room | Model A | 01 to 03 | 102 | 76 years | $380,000 | $346 psf |
Showing 1–10 of 31
Blocks on Serangoon North Avenue 4
Every block on the street, with its number of recorded HDB resales.
- Block 500 27
- Block 501 20
- Block 502 19
- Block 503 2
- Block 504 17
- Block 505 18
- Block 506 22
- Block 506A 22
- Block 506B 22
- Block 507 34
- Block 508 31
- Block 509 31
- Block 510 31
- Block 511 32
- Block 512 24
- Block 514 13
- Block 515 5
- Block 516 14
- Block 517 19
- Block 518 24
- Block 519 36
- Block 520 38
- Block 521 27
- Block 522 18
- Block 523 32
- Block 524 23
- Block 525 26
- Block 526 34
- Block 527 18
- Block 528 16
- Block 529 19
- Block 530 19
- Block 531 16
- Block 532 29
- Block 533 25
- Block 534 24
- Block 535 30
- Block 535A 17
- Block 536 18
- Block 537 44
- Block 538 29
- Block 539 41
- Block 540 39
- Block 541 33
- Block 542 43