Having grown up in a traditional 1950s 3-bed semi and lived in both terraced and detached houses as an adult, all I can ask is... why?
Terraced houses
Plus points
- lower construction costs and very efficient use of utility connections (which run along the street)
- fewer outside walls, so lower heating costs.
- back garden is a safe space. You can leave your kids to play and they can't wander out onto the street. Burglars can't wander in and pinch stuff.
- you don't need to lock your back/garden door, unless you live near the end of the row. I'm assuming a London-style arrangement where your back garden backs onto somebody else's back garden, not the strange Northern thing with a ginnel down the back.
Minus points
- you can't blast our your music and noisy neighbours on either side can make your life a misery.
- homes are narrower, so on-street parking is very limited* if you don't have a front garden/drive.
Renovation/decoration is a break even, I like it when each one in a row of terraced houses looks slightly different but original uniformity is quite OK.
Detached houses
Plus points
- you can blast out your music and noisy neighbours are less of an issue
- homes are wider, and more likely to have space for off-street parking in front (or even at the side).
- you can renovate/decorate as you like and it won't clash with next door. They are supposed to be individual.
Minus points
- higher construction costs and less efficient use of utility connections.
- four outside walls, so higher heating costs.
- back garden is not such a safe space, kids could wander onto the street (unless you have a lockable gate on each side). Those lockable gates aren't much use against a determined burglar.
- you have to lock the back/garden door.
So far so good, now, are semi-detached houses some sort of golden middle optimum..?
Semi-detached houses
Plus points
- lower construction and heating costs, and more efficient use of utility connections, than detached.
- good for on- or off-street parking on the whole.
Minus points
- higher construction and heating costs, and less efficient use of utility connections, than terraced.
- back garden is not a safe space. Kids can wander off and burglars can wander in.
- you have to lock your back/garden door.
- you can't blast your music loud and a noisy neighbor can make your life a misery.
- if one half has been 'renovated' and one not, it looks like crap.
The first plus point and first minus point cancel out, so all you are left with is a plus on the parking and the rest is all net negatives, worst of both worlds.
You can tell that people don't really value the space down the side of a semi-detached house that much - when people extend, they tend to extend sideways. Once everybody has done it, what you end up with is very messy terraced houses.
------------------------------------------------------
What have I missed? Why did we do this to ourselves?
-----------------------------------------------------
* I accept that in inner-urban areas, off-street parking is an overall minus, cars are out of place and people should walk or take public transport. I'm talking about outer suburbs and rural areas.