I want 4/5 bedroom for my 3 bedroom flat in WC1 opposite British museum

I have 2 double room 1 single room with fitted wardrobe with fitted bed with it big living room and kitchen, bathroom and toilet are separated but all, new carpet in 3 bedrooms marble effect tiles in kitchen, bathroom and toilet, wide and long hallway,doctor surgery right next door,walking distance to oxford street, walking distance to great olmand hospital and ucl hospital and university's nearest train Station's are Tottenham court road station, holborn Station, euston station. I would like to swap or exchange with in holborn, euston, Covent garden, Camden town to a 4/5 bedroom garden preferred.