Am planning an extension. 2 supporting walls involved. Have paid an architect for the concept phase. As it turns out the concept we going with is my own original suggestions and that is not because I did not listen to his ideas! There were only ever a few options which all involve compromise. I feel like I came up with the solutions. While I have the ideas for the various parts involved am not sure how to join it up - how to pull it all together and manage the project. Would I be as well with an engineer and a good builder. Do I need the architect to ensure the 'good builder' does a good job! Advice appreciated