NW3 - Small but nice single room to rent

Single bedroom with its own private balcony in a lovely 2-bedroom flat. 1st floor of large Victorian house. Decent storage for the small size of room. The room is furnished but wouldn't suit someone who works from home. Although not en suite, the room has its own shower room/wc/sink which isn't shared with anyone else.
Use of kitchen/diner. Free wi-fi. Bills and C-Tax (Band F) included.
The flat has 2 bedrooms in total, i. e. sharing with one
other person (landlady) who works from home.
Swiss Cottage tube is 5 mins walk.
Belsize Park tube is 10 - 15 mins walk.
Finchley Road tube is 10 - 15 mins walk.
All amenities (and greenery - Hampstead Heath) nearby.
It would suit a non-smoking, professional female (not a student) who has a full-time daytime (5 days a week) job out of the house. Zone 2
Available from 1 May