There are several hotels in walking distance, and some others easily accessible by tram from Atomki. Some of the nearby hotels are

More budget-conscious options include

Even more budget-conscious option is the Atomki Guest House. The guest house is situated inside the territory of the institute. It has 3 small apartmants with basic equipments (bedroom, small kitchen, bathroom, wifi) for a price of 4500 HUF/person/night. Breakfast is not served in the guest house. If you wish to chose this option, please contact the organizers.