It's the first time that I've attempted DIY on this scale and I'm quite pleased with it. I'm so proud of myself in fact, that I felt moved to show you some photos of my creation and would welcome any comments.
The coop has a 4'x 4' floor and is 6' high at the front. I'm installing a couple of new young hens next week and hopefully my hen & cockrel (Eric & Sparticus) will move in with them in time.

I shall fit the nestboxes as required.

The coop fits quite nicely I think.

I used new timber and weather proof ply which cost me about £200.
I hope to recoup (no pun intended) some of my costs by selling hatching eggs on ebay etc.