Is it really necessary for us to hire an architect for our scheme?

As architects move further and further away from providing measurements in drawings, where would you say is the added value in using an architect over doing lots of research and employing a structural engineer and interior designer? Surely without measurements, the sketches become less useful to on the ground contractors.

I have not come across the idea of architects not providing measurements before, as I would expect this as a minimum from architects’ construction drawings. Perhaps you are referring to planning drawings? In any case, building your own house is a unique opportunity and a once-in-a-lifetime chance to get your dream home. It is also likely to be one of the most expensive things you ever invest in. Personally, I would want a professional who is trained in design and able to realise my vision working with me to guide me through this journey to create something that I and future generations would be proud off.

An architect is trained to do this, whereas a structural engineer or interior designer is not. I like to use the analogy of undergoing an important medical procedure: I wouldn’t want this done to me by a vet as, while it may work out, it could be a bit messy and not quite right. So I would go to a doctor!

Having designed the house, your architect should certainly be able to provide the construction package of drawings with dimensions. You can then use your structural engineer to do their engineering part and your interior designer for the finishes.