Instead of renting a flat with people above/below you, why not rent an entire private house?
Character-filled, 2-bed, Victorian terrace cottage with garden.
Located in a conservation area, down the road from Camden Market, there are great transport links nearby. It has kingsize and double beds to easily accommodate 4 people. There is also a double sofa bed that can sleep an additional 2 people. The private garden/patio has a heater, sofa & BBQ. Superhost rating. Please see info re: cats