Designed Ensuite + common room in Belsize Park

I am reaching out with an offer to host a flatmate (ensuite + common room) in my apartment for a specific duration. My flat is located 200 meters away from the Belsize Park underground station.

The apartment is 80 m² and has two separate bedrooms, each with a king-size bed. There's a living room with a kitchen, two separate bathrooms, and two terraces overlooking a communal garden facing southwest. It is on the first floor of a beautifully maintained Victorian house. All rooms have high ceilings adorned with stucco. The apartment was fully renovated last year to the highest standards, furnished with designer furniture and equipped with top-quality household appliances.

My preferences and desires for a potential flatmate are as follows:

I am looking for a female aged between 25-35 years.
She should be a young professional.