Renovation / extension costs

Hi
I have recently bought a three bed semi detached 84 sq metres - cork city .
The down stairs measurements are as below

Bathroom 2m x 1.6m
Living room 3.6m x 3.4m
Dining room 3.6m x 2.6m
Kitchen 3.3m x 2.5m ( this is an existing extension that needs to be knocked and rebuilt )
Per the above I need to knock the existing kitchen extension , I would also like to knock the wall between living and dining room to make downstairs completely open plan.

Upstairs
Bedroom 1 4.4m x3m

Bedroom 2 3.6mx 2.6m

Bedroom 3 2.7m x2.7m

Upstairs I would like to knock the wall between bedroom 2&3 install ensuite and walk in wardrobe . Excluding fixtures and fittings would a budget of 25k suffice?

Thanks
T

be very tight : engineer sign off on the walls demolition will be c 1,000 alone, assuming u need steel beam down stairs.
but should be do-able as long as you are very clear with what needs doing when getting quotes


Whats the insulation like, especially in attic?
Maybe budget for some spend there.

Thanks for the reply . Never even thought about the attic - it's not insulated