Sebastian Ustun

Monarch Realty · Sydney, Australia · Verified

12Active Listings Monarch RealtyAgency

Sydney · AustraliaOperates In

About

Sebastian Ustun guides international buyers and sellers through Australia's most sought-after addresses, from waterfront villas to city penthouses. With a portfolio spanning landmark residences, Sebastian pairs deep local knowledge with a discreet, client-first approach at Monarch Realty.

Email agent8085@rafue.com WhatsApp +90 545 282 30 72 Location Sydney, Australia

Active Listings

12 properties

For SaleVideo

1/23

$5,000,000

Luxury Homes in Hurlingham, Argentina

529M²

7Rooms

4Beds

3Baths

1Park

Private PoolTennis CourtSaunaChef's KitchenStaff Quarters +2 more

Sebastian Ustun

Monarch Realty

Designer Residence in Tuggeranong Administrative District

For Sale

1/15

$8,900,000

Luxury Homes in Tuggeranong Administrative District, Australian Capital Territory, Australia

436M²

7Rooms

2Beds

9Baths

4Park

HelipadHome CinemaTennis CourtWine CellarSmart Home +2 more

Sebastian Ustun

Monarch Realty

For Sale

1/21

$5,500,000

Luxury Homes in Ottawa, Ontario, Canada

219M²

9Rooms

4Beds

2Baths

5Park

SaunaPrivate PoolGardenSea ViewGym +2 more

Sebastian Ustun

Monarch Realty

For Sale

1/13

$193,700,000

Luxury Homes in Calgary, Alberta, Canada

1472M²

9Rooms

6Beds

9Baths

4Park

Home CinemaGymSea ViewSpaSauna +2 more

Sebastian Ustun

Monarch Realty

For SaleVideo

1/13

$5,400,000

Luxury Homes in Lanzhou, China

1170M²

12Rooms

9Beds

8Baths

3Park

ConciergeSpaSea ViewHome CinemaChef's Kitchen +2 more

Sebastian Ustun

Monarch Realty

For SaleVideo

1/17

$8,600,000

Luxury Homes in Apartadó, Colombia

790M²

13Rooms

8Beds

7Baths

3Park

HelipadGardenSmart HomeTerraceSauna +2 more

Sebastian Ustun

Monarch Realty

For Sale

1/26

$242,600,000

Luxury Homes in Mannheim, Germany

888M²

9Rooms

4Beds

4Baths

3Park

Staff QuartersSmart HomeSaunaHome CinemaSea View +2 more

Sebastian Ustun

Monarch Realty

For Sale

1/15

$218,900,000

Luxury Homes in Worms, Germany

237M²

11Rooms

6Beds

3Baths

5Park

TerraceHelipadSaunaSmart HomeChef's Kitchen +2 more

Sebastian Ustun

Monarch Realty

For Sale

1/24

$46,800,000

Luxury Homes in Narva, Estonia

985M²

10Rooms

7Beds

8Baths

4Park

SaunaPrivate PoolSmart HomeSpaSea View +2 more

Sebastian Ustun

Monarch Realty

Palatial Mansion in L'Hospitalet de Llobregat

For SaleVideo

1/15

$100,300,000

Luxury Homes in L'Hospitalet de Llobregat, Spain

852M²

14Rooms

9Beds

8Baths

3Park

Chef's KitchenGymHelipadSaunaSmart Home +2 more

Sebastian Ustun

Monarch Realty

Contemporary Townhouse in Sanlúcar de Barrameda

For SaleVideo

1/21

$20,600,000

Luxury Homes in Sanlúcar de Barrameda, Spain

729M²

12Rooms

9Beds

8Baths

3Park

TerraceConciergeSea ViewHelipadChef's Kitchen +2 more

Sebastian Ustun

Monarch Realty

Beachfront Villa in Saint-Quentin-en-Yvelines

For Sale

1/25

$11,500,000

Luxury Homes in Saint-Quentin-en-Yvelines, France

1193M²

12Rooms

8Beds

9Baths

4Park

ElevatorSea ViewHelipadTennis CourtWine Cellar +2 more

Sebastian Ustun

Monarch Realty

Sebastian Ustun

Active Listings

Private listings, before they go public.