Records through Oct 2026 · latest successful job 10 Oct 2026 · sourced from data.gov.sg, URA, CEA · methodology →
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CEA-registered property agent

Chang Ooi Sim (Melissa Chang O S)

ERA Realty NetworkR025945HRegistered Jan 2011Specialised⬆ Top 2% in Serangoon▲ 75% momentum

161 CEA transaction entries from Jun 2017 to Aug 2026.

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CEA entries
161
Last 12 months
11
7% of career
Last transaction
Aug 2026
Avg per quarter
4.0
10 active years

Activity over time

13 CEA entries in Sept 2025–Aug 2026, down 43% vs the previous 12 months

10 active years
Source CEA public registern = 161Updated Aug 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#4,151of 21,064
11 txns
Sales rank#3,581of 21,064
4 txns
Rentals rank#3,985of 21,064
7 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 = 33

57.6%
HDB
  • HDB1957.6%
  • Condominium Apartments1339.4%
  • Landed13.0%

Transaction type

Distribution by transaction category

Full recorded history · n = 161

46.0%
Resale
  • Resale7446.0%
  • Whole Rental5131.7%
  • Room Rental2918.0%
  • New Sale74.3%

Sales representation

New sale, resale & sub-sale

50.6%
Buyer
  • Buyer4150.6%
  • Seller4049.4%

Rental representation

Whole rental & room rental

85.0%
Landlord
  • Landlord6885.0%
  • Tenant1215.0%

Top neighbourhoods

Where they actually transact, last 60 months

  • SERANGOON
    1418.9%
  • PUNGGOL
    912.2%
  • HOUGANG
    912.2%
  • KALLANG/WHAMPOA
    810.8%
  • BUKIT MERAH
    79.5%
  • TOA PAYOH
    45.4%
  • ANG MO KIO
    45.4%
  • QUEENSTOWN
    45.4%
  • BUKIT BATOK
    34.1%
  • WOODLANDS
    34.1%
  • SENGKANG
    22.7%
  • MARINE PARADE
    11.4%
  • CHOA CHU KANG
    11.4%
  • GEYLANG
    11.4%
  • BUKIT PANJANG
    11.4%
  • TAMPINES
    11.4%
  • SEMBAWANG
    11.4%
  • YISHUN
    11.4%
Source CEA public registern = 74Window 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 12, Balestier · Toa Payoh · Serangoon: 1 recorded entriesDistrict 15, Katong · Joo Chiat · Marine Parade: 2 recorded entriesDistrict 19, Hougang · Punggol · Sengkang: 3 recorded entriesDistrict 22, Jurong · Boon Lay · Tuas: 4 recorded entries
District 1, Raffles Place · Marina · Cecil: 1 recorded entriesDistrict 9, Orchard · Cairnhill · River Valley: 3 recorded entries
City centre
  • 1 entry
  • 2 entries
  • 3 entries
  • 4 entries
  • 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 = 14how this is computedWindow Last 24 months; entries with a recognised postal district

Transaction records

CEA transaction records

Showing 1–50 of 161

DateProperty typeTransaction typeRepresentedLocationDistrict
Aug 2026Condominium ApartmentsRentalLandlordOrchard/ Cairnhill/ River ValleyD9
Aug 2026Condominium ApartmentsResaleSellerKatong/ Joo Chiat/ Amber RoadD15
Jul 2026Condominium ApartmentsRentalLandlordOrchard/ Cairnhill/ River ValleyD9
Jul 2026HDBRentalLandlordSERANGOON—
Jul 2026HDBRentalLandlordBUKIT MERAH—
May 2026HDBRoom RentalLandlordSERANGOON—
May 2026HDBResaleSellerANG MO KIO—
Apr 2026LandedResaleSellerKatong/ Joo Chiat/ Amber RoadD15
Apr 2026HDBResaleBuyerPUNGGOL—
Jan 2026Condominium ApartmentsRentalLandlordSerangoon Garden/ Hougang/ PunggolD19
Nov 2025Condominium ApartmentsRentalLandlordSerangoon Garden/ Hougang/ PunggolD19
Oct 2025Condominium ApartmentsRentalTenantJurongD22
Oct 2025HDBResaleBuyerGEYLANG—
Aug 2025HDBRentalTenantMARINE PARADE—
Jun 2025HDBRentalLandlordPUNGGOL—
Jun 2025HDBRentalLandlordBUKIT BATOK—
Jun 2025HDBRoom RentalLandlordSERANGOON—
Jun 2025HDBResaleBuyerSERANGOON—
May 2025Condominium ApartmentsRentalTenantJurongD22
May 2025HDBResaleBuyerWOODLANDS—
May 2025HDBResaleSellerYISHUN—
Apr 2025HDBRoom RentalLandlordHOUGANG—
Mar 2025HDBRoom RentalLandlordANG MO KIO—
Feb 2025Condominium ApartmentsRentalTenantJurongD22
Feb 2025Condominium ApartmentsRentalTenantJurongD22
Feb 2025HDBRoom RentalLandlordHOUGANG—
Feb 2025HDBRoom RentalLandlordKALLANG/WHAMPOA—
Jan 2025Condominium ApartmentsRentalLandlordOrchard/ Cairnhill/ River ValleyD9
Jan 2025Condominium ApartmentsNew SaleBuyerBalestier/ Toa Payoh/ SerangoonD12
Jan 2025HDBRoom RentalLandlordTOA PAYOH—
Dec 2024Condominium ApartmentsRentalLandlordRaffles Place/ Cecil/ Marina/ People's ParkD1
Nov 2024Condominium ApartmentsRentalLandlordSerangoon Garden/ Hougang/ PunggolD19
Nov 2024HDBRoom RentalLandlordHOUGANG—
Oct 2024HDBRoom RentalLandlordHOUGANG—
Oct 2024HDBRoom RentalLandlordHOUGANG—
Sep 2024HDBRoom RentalLandlordSERANGOON—
Aug 2024HDBResaleBuyerPUNGGOL—
Aug 2024HDBResaleSellerSENGKANG—
Aug 2024HDBResaleBuyerBUKIT MERAH—
Jul 2024HDBRentalLandlordBUKIT MERAH—
Jul 2024HDBRoom RentalLandlordKALLANG/WHAMPOA—
Jun 2024Condominium ApartmentsRentalLandlordOrchard/ Cairnhill/ River ValleyD9
Jun 2024Condominium ApartmentsResaleBuyerQueenstown/ Tiong BahruD3
Jun 2024LandedRentalLandlordKatong/ Joo Chiat/ Amber RoadD15
Jun 2024HDBRentalLandlordPUNGGOL—
Jun 2024HDBRentalLandlordSERANGOON—
May 2024HDBRoom RentalLandlordSERANGOON—
Apr 2024Condominium ApartmentsResaleSellerPasir Panjang/ Hong Leong Garden/ Clementi New TownD5
Apr 2024Condominium ApartmentsResaleSellerTampines/ Pasir RisD18
Apr 2024HDBRentalLandlordANG MO KIO—
Page 1 of 4

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 = 161how this is computed