Expensive and luxurious. (Cambridge Dictionary)
Exhibiting or characterised by opulence such as having a large estate or property: Wealthy. (Merriam – Webster)
Opulent things or places look grand and expensive. (Collins Dictionary)
Ostentatiously costly and luxurious. (Oxford Dictionaries)
Examples
Opulent. Thing link.

https://www.thinglink.com/scene/558632922014285824
Modern and opulent apartment.

http://essentialhome.eu/inspirations/interiors-decor/modern-opulent-apartment-decor-house-tour/