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HDB · Serangoon

Blk 509 Serangoon Nth Ave 4

Latest recorded sale 1 Oct 2026 · 46 resales recorded at Blk 509 Serangoon Nth Ave 4 since 2006.

What do flats at Blk 509 Serangoon Nth Ave 4 sell for?

The median flat at Blk 509 Serangoon Nth Ave 4 sold for S$6,168 psm over the last 24 months, from 5 recorded sales between Jun 2025 and Oct 2026. This is an indicative figure from recorded transactions, not a formal valuation. Latest recorded sale 1 Oct 2026.

5 sales recorded at Blk 509 Serangoon Nth Ave 4 in the last 24 months.

S$6,168 psm

What is a flat at Blk 509 Serangoon Nth Ave 4 worth?

A typical 4-room flat at Blk 509 Serangoon Nth Ave 4 (102 sqm) is valued at S$604,711 to S$652,120, from 26 comparable sales on Serangoon Nth Ave 4 in the last 12 months with a similar lease left. This is an indicative estimate, not a formal valuation.

S$604,711 – S$652,120

S$5,929 psm to S$6,393 psm · 26 comparable sales · See every comparable sale, or change the size and floor

How has the price at Blk 509 Serangoon Nth Ave 4 changed?

Value a unit here

Change the size or floor for an indicative range for this block, or type another address or postal code.

What flats are in Blk 509 Serangoon Nth Ave 4?

TypeIn blockSoldMedian
4 ROOM6613S$520,000
5 ROOM217S$525,000
Total8720

Stock: HDB Property Information, read 2 Nov 2026. Sales and medians: homequant engine.

This block also has commercial units.

By flat type

What has sold at Blk 509 Serangoon Nth Ave 4 recently?

Recorded sales
DateDetailAreaPricePer area
Oct 2026
Blk 509 · 4 ROOM · 01 TO 03 · Model A · 70 years left
102 sqmS$590,000S$5,784 psm
Jan 2026
Blk 509 · 4 ROOM · 04 TO 06 · Model A · 71 years left
101 sqmS$660,000S$6,535 psm
Nov 2025
Blk 509 · 4 ROOM · 04 TO 06 · Model A · 71 years left
101 sqmS$610,000S$6,040 psm
Jul 2025
Blk 509 · 4 ROOM · 01 TO 03 · Model A · 71 years left
101 sqmS$623,000S$6,168 psm
Jun 2025
Blk 509 · 4 ROOM · 07 TO 09 · Model A · 71 years left
102 sqmS$646,888S$6,342 psm
Apr 2024
Blk 509 · 5 ROOM · 04 TO 06 · Improved · 72 years left
120 sqmS$690,000S$5,750 psm
Apr 2024
Blk 509 · 4 ROOM · 04 TO 06 · Model A · 72 years left
101 sqmS$600,000S$5,941 psm
Jan 2023
Blk 509 · 4 ROOM · 04 TO 06 · Model A · 74 years left
102 sqmS$520,000S$5,098 psm
Dec 2022
Blk 509 · 4 ROOM · 04 TO 06 · Model A · 74 years left
102 sqmS$520,000S$5,098 psm
See more

Showing 9 of 47.

Sale prices as filed in caveats.

Buying or selling here?

Buying: Stamp duty · Cash and CPF needed · How much can I borrow · Monthly repayment.

Selling: Net proceeds from selling.

Nearby blocks

Serangoon Nth Ave 4 — full project history · 4-Room resale prices in Serangoon · Completed in 1996