On television, you will regularly see shows about a couple renovating a home. Careful editing will show the different emotions that the couple goes through when they are often working together for the first time.
Ultimately, they end up with a fantastic looking property and it all looks good and the credits roll over the two of them drinking a glass of wine on their gorgeous new decking.
The reality of it is unless one or both of you have building skills and a never-ending flow of cash, renovating may end in disaster. You will tear up a lot of money on a project so unless you have the skills to do it pass it onto a building team with a good project manager.
If you still want to go ahead with your dream reno, figure out what you can afford, set a strict budget and learn how to compromise.