Housing

Chickens should be given a floor space of no less than one square foot per bird (large fowl) or 8" square for bantams.The more space they are given, the better though bear in mind that much of their time will spent sheltering from the elements in the henhouse. Perches should allow a minimum of 9" for large birds and 6" for bantams and should be at least 2" wide.
To deter vermin from nesting underneath the coop, make sure to have it slightly raised off the ground and be sure to clean inside once a week to prevent red mite from nesting.
Essential in the henhouse are perches for roosting, nest boxes placed in the darkest areas of the coop for hens to lay eggs and plenty of straw or shavings for bedding. Hay is not recommended as it contains mould spores which can cause respiratory problems with the hens.
Adequate ventilation is also important and can be sorted with a simple 2.5cm square over a small opening at the top of the coop to minimise the risk of draughts.
Don't forget the danger posed by foxes, ensure the coop has a strong bolt and the pophole is shut every night.

Feed

Layers pellet rations are the most popular feed for egg-producing hens. The pellets should always contain a minimum of 16% protein to ensure good quality eggs. As chickens do not have teeth, they need grit to grind up the food. There are two types to choose from; hard grit aids digestion and calcium grit dissolves in the stomach and provides calcium for egg production.
Mixed grain can be given as a treat, which can be given fed off the hand. They will also enjoy vegetable and fruit peelings and greenery such as grass, which boosts omega-3 levels in the eggs and helps lower cholestrol.
Please don't give them potato peelings or bread as it upsets their stomach!