What would you use 'extra' rooms for in your house?

My third bedroom is a library/reading room and I love it, I’ve wanted one for years. Shelves covered with books, armchair, footstool, side table and standing lamp. Perfection!

Home gym - weights, mats, tv, massive mirrors, speakers, nice lighting, maybe a Pilates reformer machine, rowing machine, bike. Large enough so multiple people can workout at once eg 2/3 reformer beds.

Walk in wardrobe/dressing room: think floor to ceiling shelving and mirrors and generally a space for everything fashion/beauty related. No real need for any clothes or makeup to be in the bathroom or bedrooms.

Hobby room: not sure how to explain but a generally creative space for physical things like arts & crafts & musical instruments

Pet room: I like the idea of going all in with a ridiculous set up for your dog like a mini house, giant ball pit etc but not having it out in the main living areas.

Also my house is quite contemporary. I have an office but it doesn’t make sense to not style it in a contemporary manner. If I had the right space, I’d just like the option for classic styling that is dark and gloomy, lots of built in wooden furniture, maybe a secret door behind massive wall to wall bookshelves, dark carpet and ceilings.

I'd love an utility room

We have a 5 bedroom house. DH bought it 10 years before we met as a sort of house that would do for house parties for friends. I put up with that for 20 years and then got tired of people taking the piss. (We live in a very popular tourist area).

So now we have a master bedroom. two bedrooms for the Dcs. A study and a library. The latter 2 do not have beds.

I knew this was going to be Warhammer! I too would like a Warhammer room for all the painting gear and the endless bloody armies to be in one place where I never have to see them

In theory I’d like a second reception room for the (grown) kids to use in the evenings for their movies, gaming etc while DH and I have the living room. A spare bedroom for guests and a reading room so the bedrooms wouldn’t have towering stacks of books that can’t fit on the already double-stacked shelves.

But in practice that would just be more rooms to fail to keep clean and tidy.

In my fantasy house, I have a utility room, a proper office and a dining room.
Ideally I’d like two offices. One ground floor with its own entrance and a small side room, (to be a clinic suite for me) one elsewhere in the house that is entirely office space.
I have decided that when we move, which will hopefully be soonish, we will have a dining room and utility. For definite.
We can manage without an office, if needs be, but I can’t cope with the tumble dryer being in the garage any longer! It’s horrible.

We have craft room, dog room, office, music room (guitar dumping room) dry washing room,

We already have a music room, and a library upstairs which is also my wfh office. I recognise I'm really privileged to have these spaces and really appreciate them - although the music room is used mainly by our sons. The only thing I'd really like to add is a walk in pantry (and have a bigger library as it is overflowing 🤣)

I'd like a bedroom for me. Currently sleeping in the living room.

Exactly the same for me.

Our extra room was a playroom, then a guest room, now an office / second lounge. I always wanted a craft room but… stopped crafting.

A separate dining room, a walk in wardrobe, a craft room, a full of crap room, mostly I dream about a utility room.
My home is a small terrace house with one small upstairs bathroom.
There is no extra room.

bedroom for myself. I sleep so much better alone.

A playroom/study room. Although kids are getting older so more likely to be a games and hang out room

In my dream house I’d have
A walk in pantry
A craft room (that could also be a wrapping room)
A small bedroom with air con, excellent black out blinds/curtains, a small fridge containing water, gel face masks, ear plugs and snacks, some painkillers and a lock on the door. I’d retreat into it whenever a migraine flared up (or I really needed a sleep).
A small, cosy library
A sauna and cold dip pool tucked away with a small space for changing etc
A spacious potting shed (although realistically it would be filled with bugs and I wouldn’t use it)
A room for DH to store his outdoor equipment in.

In my actual house I’d like
An office
A separate play room
A spare room
En suite with a bath just for me

Library and craft room

We have 4 double bedrooms between 2 of us, so both have a big hobby room and office each, then have a spare room, plus our bedroom. If we had a separate dining room, we would never eat in there, so I'd be likely to turn it into a home gym - mirrors down one wall, tv, equipment, mats - the full works.

I’d like a laundry room - big enough to have different baskets, hanging rails and ironing board set up as well as the washing machine and dryer.
Also, a proper boot room/cloakroom with loads of storage. Hate my poky cupboard where nobody can ever find anything!

We already have a play room, a craft attic, and a spare room/study. I'd like a music room!

Not quite Warhammer but dungeons and dragons, tiny figures loads of painting equipment for said figures, plus all the bagged and boarded comic books! Sometimes I'd rather he was at the pub......

sewing/ craft room
library
dressing room
music room
art studio
private chill out room for me alone
make-up/beauty space with great mirrors, reclining chair, piped music (like a spa room)
ironing room (and somebody to permanently live in it!)
walk-in larder and chill room
office(s) - we wouldn't be sharing!
boot room with sink for muddy outdoor stuff
wine cellar
jam and pickle room so it doesn't all have to stack up in the garage

.... I'm going to need a much bigger house, aren't I?

I would love a huge light filled arts and craft room, where I can have multiple projects on the go, left out. Big lock on door so kids can’t steal brushes

We have a weird, dark little room downstairs that is always cold, so we’ve turned that into a ‘gym’ room. Upstairs we have an office/guest room and the box room has been taken over by DD to house her 1000 small plastic horses 🙈

We have an office each and a junk room that ought to be playroom + gym. I would like to add:

• library
• gym
• playroom
• guest room
• laundry room
• pantry
• storage room
• extra shed to separate garden stuff from toys
• extra summer house to sit in.

Assumed something like that. Sounds like my DH with all his hobby clobber. Daily Amazon parcels of gadgets, tools, stuff we don't need. Sigh.

I'd have a sewing room.

Currently living overseas in a ridiculously large house and we have two huge unused rooms we completely ignore.

We already have two home offices, a guest room, a home gym and loads of storage. We rent so don't want to buy stuff to get rid of eventually, hence some spaces just have to stay empty.