Mod The Sims 4 – Houses and Lots, Residential Lots: British Family Manor by Dixie Nourmous.
Contains:
entrance hall,
living room,
small art gallery,
dining room,
kitchen,
small office,
downstairs bathroom with washing machine,
master bedroom with closet and bathroom attached,
room fit for a teenage girl,
room fit for twin boys,
small art room,
guest bedroom,
completely empty room which you can use however you see fit.