Move or extend? Is extending hell?

[nappyzonehasastroppytoddler]

We are on the brink of putting house on market and have soent weekend looking round and to get extra space etc it is looking more expensive than anticipated ...... dh main thing is he wants more room for kids bedrooms as both are small and the bathroom is quite small also. I just want a garden rom type room to relax in. Sooooooooo as the 3 main problem rooms areo nthe back of the house and our house os on a good plot he wants to call a builder in for a quote and plans to extend the back of house creatign a large ground floor sunroom type thing the full width of house .......... whilst i am thinking this would be cheaper (no idea how cheaper) i am also thinking it will be hell on earth living through it. Would it be - has it been hell for anyone here?

also said the whole thing would take 12 weeks from start to finish with the knocking into the existing property (only affects upstairs) taking 10 days ish to complete - no need to move out.....

Excellent re no need to move out - I guess we were having kitchen and bathroom replaced simultaneously...

anyone planning on a huge amount of glass - we had to get someone (can't remember their job title now) to assess the heat loss factor, which affected how much glass we could have in the build.

yes the builder wowed on about somthing to do with % and glass etc... i was hoping for it for about 30k to make it worth not moving.... hoping he has overpriced to fund his big landrover he arrived in. I ask alot i know! I have just been googling double baths though