Older buildings were often built with better more longlasting materials (and larger room sizes, and larger plots (more parking, more garden, more privacy) than some of the crap I see being thrown up round here. I wouldn't touch most current mass development new-builds with a bargepole. I've seen what they were built with :-( Who on earth buys a "detached" house so close to the neighbours you can hear them fart (indoors and out).
My 30 + yr old property (a development project, 60 homes) is beautifully designed and constructed in top quality materials and fittings. (bricks, woodwork, roof, plumbing, insulation) . It's so warm we could easily live without CH (in winter in the Highlands) . The original owner who bought it off-plan, specified the best, top grade of optional fittings. It's in superb condition.
An experienced viewer can easily tell whether an older property has been solidly built AND well maintained for decades (or a cheap and shoddy heap, renovated at rock bottom grade, to sell).
Your surveyor (or the free Home Report in Scotland) will list comments on the state its in. So if an older building does have age related or maintenance faults, you'll know before you buy. Don't be put off by superficial problems that can be changed later, like decor and an overgrown garden.
If this is going to be a longterm family home, then plan ahead for your future. You'll need a garden; and consider ease of access to schools, parks, and a mix of local housing within reach. Childminders rarely inhabit expensive little villages. One day it might be useful to have a dedicated room for
WFH; or a live-in au pair or widowed parent.
Your mortgage to income ration is good, so get the biggest longest mortgage you can and invest it wisely.