Home / Compare agents / Propnex Realty / Koay Siew Hoon (Sandy Koay)
90
AGENTSCORE
Top performer

Koay Siew Hoon (Sandy Koay)

Propnex Realty property agent in Jurong West · CEA R021766F
66 transactions26% in Jurong West85% hdbJurong West
Ranked on CEA dataUpdated Sep 2026
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Is this your profile, Sandy?

In the 30 days to 06 Sep 2026, members of the public opened 1,441 different Singapore agents' CEA records here, 1,198 of those arrivals straight from Google. 6 of those agents had claimed their page. The other 1,435 were spoken for by a page they have never seen.

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22 deals a year is the top tenth of the market.

5median12top 25%22top 10%56top 1%

Deals per agent over the last 12 months, from the CEA register.

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The record at a glance

Strong seller representation in Jurong West.

Koay Siew Hoon (Sandy Koay) holds an exceptional AgentScore of 90/100 on 66 CEA-recorded transactions. 89% of that activity is sales rather than rentals, and of the sales with a recorded side 71% were seller-side, representing the person selling. The record centres on HDB transactions, over roughly 9 years of recorded activity.

Synthesised from Sandy's CEA transaction record. Full breakdown below.

Verified track record

59
Recorded sales
41
Seller-side resales
0
Sales logged on FairComparisons

Seller-side resales are the deals where this agent represented an owner selling an existing home, which is the closest match to hiring them to sell yours. Recorded sales include new project launches, where the seller is the developer. 7 rental transactions are also on record. Counted from official CEA salesperson records. No sales have been logged on FairComparisons yet; this fills in as the record grows.

Deal breakdown

Sandy's 66 CEA-recorded transactions at a glance.

66DEALS
Resale58 (88%)
Rental (whole)6 (9%)
New sale1 (2%)
Rental (room)1 (2%)
Seller · 42 (71%)Buyer · 17
Which side of a sale they usually represent
Landlord · 6 (86%)Tenant · 1
Which side of a rental they usually represent

Activity over time

Sandy's recorded CEA transactions by year, sales and rentals.

8
2017
6
2018
5
2019
7
2020
8
2021
9
2022
6
2023
5
2024
5
2025
7
2026
Sales Rentals
Where Sandy ranksTop 22%

Ranked by AgentScore across all scored CEA agents in Singapore, ahead of about 78% of them. Based on 66 recorded transactions.

Performance overview

Based on 66 CEA transactions recorded to date.

Property mix
HDB
85%
Condo & apartment
14%
EC
2%
Represents
Seller
64%
Buyer
26%
Landlord
9%
Tenant
2%

Where Sandy is most active

Jurong West
17
Jurong East
8
Bukit Batok
7
Queenstown
4
Ang Mo Kio
4

Transaction record

Every deal below is from the CEA salesperson public register. No price or address is published in this record. Verify Sandy's current CEA registration ↗

42
Sales representing the seller
17
Sales representing the buyer
7
Rental transactions

Selling a home? Sandy represented the seller in 42 of 59 recorded sales, alongside 7 rental deals.

Last recorded deal · Jul 2026
DateTypeActing forPropertyArea
Jul 2026ResaleSellerHDBBukit Batok
May 2026ResaleSellerHDBJurong West
Apr 2026ResaleSellerHDBJurong West
Apr 2026ResaleSellerHDBJurong West
Mar 2026ResaleBuyerHDBJurong West
Mar 2026ResaleSellerHDBAng Mo Kio
Jan 2026Whole RentalLandlordCondoJurong
Dec 2025ResaleSellerHDBChoa Chu Kang
Show 52 more recorded transactions (of 66 on record)
DateTypeActing forPropertyArea
Sep 2025ResaleSellerHDBBukit Batok
Aug 2025ResaleSellerHDBQueenstown
Jul 2025ResaleSellerHDBQueenstown
Mar 2025Whole RentalLandlordCondoMiddle Road/ Golden Mile
Aug 2024Whole RentalLandlordCondoMiddle Road/ Golden Mile
Aug 2024ResaleSellerCondoJurong
Aug 2024ResaleSellerHDBBukit Batok
Apr 2024Room RentalTenantHDBAng Mo Kio
Apr 2024Whole RentalLandlordHDBBukit Panjang
Nov 2023ResaleSellerHDBQueenstown
Aug 2023ResaleSellerHDBChoa Chu Kang
May 2023ResaleBuyerHDBJurong West
Feb 2023ResaleBuyerHDBBukit Batok
Jan 2023ResaleSellerHDBJurong West
Jan 2023ResaleSellerHDBJurong East
Dec 2022ResaleSellerHDBJurong East
Nov 2022ResaleBuyerHDBBukit Batok
Oct 2022New SaleSellerECLim Chu Kang/ Tengah
Jul 2022ResaleSellerHDBJurong West
Jul 2022Whole RentalLandlordCondoJurong
May 2022ResaleSellerHDBSembawang
Apr 2022ResaleSellerHDBYishun
Feb 2022ResaleBuyerHDBJurong West
Jan 2022ResaleSellerCondoKranji/ Woodgrove
Dec 2021ResaleSellerHDBJurong West
Nov 2021ResaleBuyerCondoJurong
Sep 2021ResaleSellerHDBJurong East
Jul 2021Whole RentalLandlordCondoJurong
Jul 2021ResaleSellerHDBAng Mo Kio
May 2021ResaleSellerHDBKallang/Whampoa
Apr 2021ResaleBuyerHDBJurong East
Apr 2021ResaleSellerCondoJurong
Dec 2020ResaleBuyerHDBHougang
Dec 2020ResaleSellerHDBSengkang
Nov 2020ResaleSellerHDBBukit Batok
Nov 2020ResaleBuyerHDBJurong West
Sep 2020ResaleBuyerHDBJurong East
Aug 2020ResaleSellerHDBBukit Batok
Jan 2020ResaleBuyerHDBJurong East
Sep 2019ResaleSellerHDBAng Mo Kio
Sep 2019ResaleSellerHDBSerangoon
Aug 2019ResaleSellerHDBHougang
Mar 2019ResaleBuyerHDBGeylang
Feb 2019ResaleSellerHDBJurong East
Sep 2018ResaleSellerHDBJurong East
Aug 2018ResaleSellerHDBJurong West
Jun 2018ResaleBuyerHDBYishun
May 2018ResaleSellerHDBYishun
Jan 2018ResaleSellerHDBJurong West
Jan 2018ResaleBuyerHDBJurong West
Aug 2017ResaleSellerHDBJurong West
Jul 2017ResaleSellerHDBClementi

This record reflects transactions in the public CEA register. Off-market deals and very recent transactions may not appear yet, and government data is published with a lag. Spotted an error? Report it and we will check it against the source.

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Is this Sandy?

This profile is compiled from public CEA, URA and HDB transaction records. If a figure looks wrong, we will check it against the source and correct verified errors. You can also claim the profile to add context, or ask us to remove it.

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Quick answers

About Koay Siew Hoon (Sandy Koay), from the record.

Is Koay Siew Hoon (Sandy Koay) a CEA-registered property agent?

Yes. Koay Siew Hoon (Sandy Koay) is registered with the Council for Estate Agencies under registration number R021766F, currently with Propnex Realty. You can verify this on the CEA Public Register.

How many property transactions does Koay Siew Hoon (Sandy Koay) have on record?

66 transactions are attributed to Koay Siew Hoon (Sandy Koay) in CEA's public transaction records. The full breakdown by property type, transaction type and side is shown on this page.

What is Koay Siew Hoon (Sandy Koay)'s AgentScore?

90/100. AgentScore is computed by FairComparisons from public CEA, URA and HDB records, weighing transaction volume, recent activity, market diversity and experience. Rankings cannot be bought or edited by any agent.

Which area is Koay Siew Hoon (Sandy Koay) most active in?

Jurong West, based on the location of Koay Siew Hoon (Sandy Koay)'s recorded transactions.

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