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82
AGENTSCORE
Strong

Tian Boon Siew (Sebastian)

Propnex Realty property agent in Punggol · CEA R053697D
90 transactions48% in Punggol83% hdbPunggol
Ranked on CEA dataUpdated Aug 2026
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Your AgentScore is 82, Sebastian. Sellers can already see it.

In the 30 days to 26 Aug 2026, members of the public opened 1,378 different Singapore agents' CEA records here, 1,271 of those arrivals straight from Google. 6 of those agents had claimed their page. The other 1,372 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

More buyer-side than seller-side sales.

Tian Boon Siew (Sebastian) holds an exceptional AgentScore of 82/100 on 90 CEA-recorded transactions. 97% of that activity is sales rather than rentals, and of the sales with a recorded side 33% were seller-side, representing the person selling. The record centres on HDB transactions, over roughly 9 years of recorded activity.

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

Verified track record

87
Recorded sales
24
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. 3 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

Sebastian's 90 CEA-recorded transactions at a glance.

90DEALS
Resale82 (91%)
New sale5 (6%)
Rental (whole)2 (2%)
Rental (room)1 (1%)
Seller · 29 (33%)Buyer · 58
Which side of a sale they usually represent
Landlord · 1 (33%)Tenant · 2
Which side of a rental they usually represent

Activity over time

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

23
2017
16
2018
8
2019
7
2020
6
2021
4
2022
10
2023
5
2024
5
2025
6
2026
Sales Rentals

Performance overview

Based on 90 CEA transactions recorded to date.

Property mix
HDB
83%
Condo & apartment
17%
Represents
Buyer
64%
Seller
32%
Tenant
2%
Landlord
1%

Where Sebastian is most active

Punggol
43
Sengkang
10
Ang Mo Kio
5
Hougang
3
Pasir Ris
2

Transaction record

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

29
Sales representing the seller
58
Sales representing the buyer
3
Rental transactions

Selling a home? Sebastian represented the seller in 29 of 87 recorded sales, alongside 3 rental deals.

Last recorded deal · Apr 2026
DateTypeActing forPropertyArea
Apr 2026ResaleSellerHDBSengkang
Apr 2026New SaleSellerCondoYishun/ Sembawang
Apr 2026New SaleSellerCondoLim Chu Kang/ Tengah
Mar 2026ResaleBuyerCondoSerangoon Garden/ Hougang/ Punggol
Feb 2026Whole RentalLandlordHDBPunggol
Jan 2026New SaleSellerCondoYishun/ Sembawang
Aug 2025ResaleBuyerHDBPunggol
Apr 2025ResaleSellerCondoQueenstown/ Tiong Bahru
Show 52 more recorded transactions (of 90 on record)
DateTypeActing forPropertyArea
Apr 2025ResaleBuyerHDBBukit Panjang
Jan 2025ResaleSellerCondoTampines/ Pasir Ris
Jan 2025ResaleBuyerHDBPunggol
Dec 2024ResaleBuyerHDBAng Mo Kio
Nov 2024New SaleSellerCondoUpper Bukit Timah/ Clementi Park/ Ulu Pandan
Jul 2024ResaleSellerCondoSerangoon Garden/ Hougang/ Punggol
Jun 2024ResaleSellerCondoSerangoon Garden/ Hougang/ Punggol
Feb 2024ResaleSellerHDBSengkang
Nov 2023ResaleBuyerHDBPunggol
Nov 2023ResaleSellerHDBPunggol
Oct 2023ResaleBuyerHDBPunggol
Sep 2023ResaleBuyerHDBPunggol
Jun 2023ResaleSellerHDBBukit Batok
May 2023ResaleBuyerCondoTampines/ Pasir Ris
Apr 2023New SaleSellerCondoUpper Bukit Timah/ Clementi Park/ Ulu Pandan
Feb 2023Room RentalTenantCondoBishan/ Ang Mo Kio
Jan 2023ResaleBuyerCondoSerangoon Garden/ Hougang/ Punggol
Jan 2023ResaleSellerCondoSerangoon Garden/ Hougang/ Punggol
May 2022ResaleBuyerHDBChoa Chu Kang
Apr 2022ResaleSellerHDBAng Mo Kio
Apr 2022ResaleBuyerHDBSembawang
Mar 2022ResaleBuyerHDBAng Mo Kio
Oct 2021ResaleBuyerHDBPunggol
Aug 2021ResaleSellerHDBSengkang
Apr 2021ResaleSellerHDBPunggol
Mar 2021ResaleBuyerCondoTelok Blangah/ Harbourfront
Feb 2021ResaleSellerHDBSengkang
Jan 2021ResaleSellerHDBPunggol
Dec 2020ResaleBuyerHDBSengkang
Oct 2020ResaleSellerHDBPunggol
Aug 2020ResaleSellerHDBPasir Ris
Jul 2020Whole RentalTenantHDBHougang
May 2020ResaleBuyerHDBWoodlands
May 2020ResaleBuyerHDBPunggol
Jan 2020ResaleBuyerHDBPunggol
Jul 2019ResaleBuyerHDBYishun
Jun 2019ResaleBuyerHDBPunggol
Apr 2019ResaleSellerHDBHougang
Mar 2019ResaleBuyerHDBSembawang
Mar 2019ResaleBuyerHDBSengkang
Jan 2019ResaleSellerHDBPasir Ris
Jan 2019ResaleBuyerHDBSengkang
Jan 2019ResaleBuyerHDBPunggol
Dec 2018ResaleBuyerHDBPunggol
Dec 2018ResaleBuyerHDBSengkang
Dec 2018ResaleBuyerHDBPunggol
Oct 2018ResaleSellerHDBYishun
Sep 2018ResaleBuyerHDBPunggol
Aug 2018ResaleBuyerHDBPunggol
Jul 2018ResaleBuyerHDBPunggol
Jul 2018ResaleBuyerHDBPunggol
Jun 2018ResaleBuyerHDBPunggol

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 Sebastian?

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 Tian Boon Siew (Sebastian), from the record.

Is Tian Boon Siew (Sebastian) a CEA-registered property agent?

Yes. Tian Boon Siew (Sebastian) is registered with the Council for Estate Agencies under registration number R053697D, currently with Propnex Realty. You can verify this on the CEA Public Register.

How many property transactions does Tian Boon Siew (Sebastian) have on record?

90 transactions are attributed to Tian Boon Siew (Sebastian) in CEA's public transaction records. The full breakdown by property type, transaction type and side is shown on this page.

What is Tian Boon Siew (Sebastian)'s AgentScore?

82/100. 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 Tian Boon Siew (Sebastian) most active in?

Punggol, based on the location of Tian Boon Siew (Sebastian)'s recorded transactions.

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