Huge double room / private bathroom in large house

I've been sole occupant of my house for past 2 years, after last housemate returned to Spain after 10 years living here. It's a HUGE place (2 living rooms, kitchen, dining room + 5 bedrooms), so a bit much for me to rock around in on own.

I am looking for a super-chilled housemate, who likes dogs (I have a little cockapoo called Lola) - who is tidy & quiet. This is kind of a "unicorn" search, I suspect, as my last housemate was super cool but just some details about me, to help with the search.

About the house / room:

It's a huge house with large rooms throughout decorated in New York loft style + Scandi decor. My office / recording studio, I'd limit access for myself, as there is a lovely living room that would be shared. Large garden with a variety of BBQs / smokers + ponds + a summer room for autumn / summer evenings outdoors.

The house has been designed for outdoor living, with bi-fold doors off the dining room / kitchen with decked areas and outdoor cooking / dining areas.

There are a selection of bedrooms that I can consider renting out - some ensuite, so it all just kind depends on which room suits the person, to work out which room would be best.

- Super fast 1gb broadband
- Dishwasher
- Washing machine
- Large American style fridge
- Parking potentially
- Amazing location - 6 mins walk max to Branksome train station, Westbourne village, Tesco & even John Lewis

About me:

I'm American born to German / Finnish parents who has lived most of his life in UK. I enjoy tennis, snowboarding holidays, kitesurfing, music production / DJing, occasional table football, talking business theory, cooking (especially new dishes) & generally chilling out. I retired early in life after being involved in dot. com development. During the summer I do LOTS of BBQing (American style, as in with offset smokers / Big Green Egg BBQs).

I have a long-term girlfriend & daughter in Dorchester, who I visit normally for 1-2 days per week or they come over here. Somethings you might find "a challenge" - I don't drink, really don't like football and enjoy chatting about something meaningful rather than just "sh1t talk" (that is the Finnish side of me, I guess).

Happy to start talking with people to find out if there might be a good match for a housemate but no rush on this, at all. :)