This varies by lot. With some home delivery lots you will pay extra for delivery, with others you will not. Once you place a bid, the delivery fee will appear in the list of all fees for the lot.
Sometimes the delivery costs are also listed in the "Lot list & auction information". If you click on this you will see "About the auction" at the top, you will find the additional costs there.
Delivery costs are not only the cost of sending the package, but also costs such as storage, warehousing, handling, etc. These costs are incurred per lot and not per shipment. These costs are also listed when you bid.