The first question is what month it is. Most of the big houses here close for the winter or open only on a few days, so a good plan in June does not work in January. The second is whether you want a house, a hill or something with an engine.
Old houses, and which to pick
If you see one, make it Broughton Castle, for the moat, the gatehouse and the recorded history, on one of its few afternoons in the season. There is no booking. Upton House has an art collection in the house and gardens to go with it, and suits art lovers and families. Sulgrave Manor is the Tudor house of George Washington's ancestors, with trails and dressing up.
Further out, Canons Ashby has painted rooms and a medieval church beside it, Chastleton is for people who like their old houses worn, and Farnborough Hall is a short visit, not worth a long drive on its own. Stowe needs a whole day and two tickets, and Charlecote Park is the easy one with a family and a dog. Our guide to castles and houses near Banbury sorts all of them.
When it is open in winter
Compton Verney, a gallery in a country house set in a Capability Brown park, opens from Wednesday to Sunday through the winter and has lifts to every gallery floor. Banbury Museum and Gallery is free, with its Waterways Gallery bridging the canal. Things to do in Banbury has more in town.
Beer, boats and engines
Hook Norton Brewery is a working Victorian tower brewery you walk up through, with a tasting at the end. The tour means over 100 open steps and no under-12s. Tooley's Boatyard is a dry dock and forge of 1778, hemmed in by a shopping centre, with boat trips on summer Saturdays. Its hours are limited, so ring first. Silverstone Museum is more hands-on displays than rows of cars, and loud in places.
Outdoors
Burton Dassett Hills is a big hill and a view, for children and dogs who need to run. The council lists no café, so bring a flask. The National Herb Centre at Warmington is for people who cook or garden. Free and open at any time are Banbury Cross, Deddington's castle banks and the Edgehill battlefield, which you see from the ridge, since most of it is closed Ministry of Defence land.
What is missing
Our list has no zoo, no theme park and no big family attraction. Rousham and the Wroxton Abbey grounds are not on our list. The Abbey itself is a college and not open to visitors. For bigger names, day trips from Banbury covers Warwick, Stratford and Blenheim, and one day by car strings the Civil War sights together.