Records through Oct 2026 · latest successful job 10 Oct 2026 · sourced from data.gov.sg, URA, CEA · methodology →
OpenProperty.sg
⌘K

CEA-registered property agent

Ser Sin Ah (Desmond)

Unison AgencyR001548FRegistered 10 Feb 2015Highly specialised⬆ Top 13% in Tampines

85 CEA transaction entries from Feb 2017 to Jul 2026.

Claim this profile
CEA entries
85
Last 12 months
4
5% of career
Last transaction
Jul 2026
Avg per quarter
2.1
10 active years

Activity over time

6 CEA entries in Aug 2025–Jul 2026, down 45% vs the previous 12 months

10 active years
Source CEA public registern = 85Updated Jul 2026Each CEA register entry counts once. Rentals include HDB and private tenancies; sales include resale, new sale and sub sale.

Rankings

Where they rank

Overall rank#10,225of 21,064
4 txns
Sales rank—
Rentals rank#6,678of 21,064
4 txns

Rank by CEA-recorded transaction count among all active agents in the timeframe. Sales excludes rentals.

Property type

Distribution by property category

Last 24 months · n = 16

81.3%
HDB
  • HDB1381.3%
  • Condominium Apartments318.8%

Transaction type

Distribution by transaction category

Full recorded history · n = 85

62.4%
Resale
  • Resale5362.4%
  • Whole Rental3136.5%
  • Room Rental11.2%

Sales representation

New sale, resale & sub-sale

50.9%
Buyer
  • Buyer2750.9%
  • Seller2649.1%

Rental representation

Whole rental & room rental

100.0%
Landlord
  • Landlord32100.0%
  • Tenant00.0%

Top neighbourhoods

Where they actually transact, last 60 months

  • TAMPINES
    1025.0%
  • HOUGANG
    717.5%
  • GEYLANG
    512.5%
  • PUNGGOL
    410.0%
  • TOA PAYOH
    37.5%
  • BEDOK
    37.5%
  • SENGKANG
    25.0%
  • SERANGOON
    25.0%
  • BUKIT MERAH
    12.5%
  • SEMBAWANG
    12.5%
  • YISHUN
    12.5%
  • PASIR RIS
    12.5%
Source CEA public registern = 40Window Last 60 months; records with a known neighbourhood

Geographic footprint

Where this agent is active

Choose a district to see the agent’s recorded activity there.

Last 24 months
District 14, Geylang · Eunos · Paya Lebar: 1 recorded entriesDistrict 15, Katong · Joo Chiat · Marine Parade: 1 recorded entriesDistrict 18, Tampines · Pasir Ris: 1 recorded entries
City centre
  • 1 entry
  • No recorded activity

CEA records identify a postal district, not an exact address. District outlines are approximate (derived from URA Master Plan subzones).

Source CEA public registern = 3how this is computedWindow Last 24 months; entries with a recognised postal district

Transaction records

CEA transaction records

Showing 1–50 of 85

DateProperty typeTransaction typeRepresentedLocationDistrict
Jul 2026HDBRentalLandlordTAMPINES—
May 2026HDBRentalLandlordSERANGOON—
Feb 2026HDBRoom RentalLandlordPUNGGOL—
Jan 2026HDBRentalLandlordTAMPINES—
Oct 2025HDBResaleBuyerBEDOK—
Aug 2025HDBRentalLandlordTAMPINES—
Jul 2025HDBRentalLandlordPUNGGOL—
May 2025HDBRentalLandlordGEYLANG—
May 2025HDBResaleBuyerHOUGANG—
May 2025HDBResaleSellerHOUGANG—
Mar 2025Condominium ApartmentsRentalLandlordGeylang/ EunosD14
Mar 2025Condominium ApartmentsRentalLandlordTampines/ Pasir RisD18
Mar 2025HDBRentalLandlordHOUGANG—
Jan 2025HDBRentalLandlordBEDOK—
Dec 2024Condominium ApartmentsRentalLandlordKatong/ Joo Chiat/ Amber RoadD15
Nov 2024HDBRentalLandlordBEDOK—
Aug 2024HDBResaleSellerSENGKANG—
Jul 2024HDBResaleBuyerPASIR RIS—
Jun 2024HDBResaleSellerTAMPINES—
May 2024HDBResaleBuyerTAMPINES—
May 2024HDBResaleSellerHOUGANG—
Mar 2024HDBRentalLandlordTAMPINES—
Mar 2024HDBResaleSellerTAMPINES—
Feb 2024Condominium ApartmentsRentalLandlordGeylang/ EunosD14
Feb 2024HDBResaleSellerHOUGANG—
Jan 2024HDBResaleBuyerHOUGANG—
Dec 2023HDBRentalLandlordGEYLANG—
Dec 2023HDBResaleBuyerYISHUN—
Oct 2023HDBResaleSellerTAMPINES—
Oct 2023HDBResaleBuyerTOA PAYOH—
Aug 2023HDBRentalLandlordPUNGGOL—
Jun 2023HDBRentalLandlordBUKIT MERAH—
Jun 2023HDBResaleBuyerGEYLANG—
May 2023HDBResaleSellerGEYLANG—
Mar 2023Condominium ApartmentsRentalLandlordTampines/ Pasir RisD18
Mar 2023HDBRentalLandlordTAMPINES—
Feb 2023Condominium ApartmentsRentalLandlordGeylang/ EunosD14
Feb 2023HDBResaleSellerSEMBAWANG—
Feb 2023HDBResaleBuyerTAMPINES—
Jan 2023Condominium ApartmentsRentalLandlordKatong/ Joo Chiat/ Amber RoadD15
Jan 2023HDBRentalLandlordPUNGGOL—
Jun 2022Condominium ApartmentsRentalLandlordTampines/ Pasir RisD18
Jun 2022HDBRentalLandlordSERANGOON—
Jun 2022HDBResaleSellerTOA PAYOH—
Jun 2022HDBResaleBuyerTOA PAYOH—
Apr 2022HDBResaleBuyerSENGKANG—
Mar 2022HDBResaleSellerHOUGANG—
Dec 2021HDBRentalLandlordGEYLANG—
Jun 2021Condominium ApartmentsRentalLandlordTampines/ Pasir RisD18
Jun 2021HDBResaleBuyerYISHUN—
Page 1 of 2

Each row is one CEA source entry. Entries with the same month and location remain separate because the public data does not establish that they are the same deal.

Source CEA public registern = 85how this is computed