There is a wide variety of hotels in terms of price and quality/service in central Lund. Booking a hotel at the outskirts of Lund is in principle possible, too, but commuting from and to these hotels might be difficult, depending on arrival and departure times.
In case there are any questions, or for further support or help with hotel bookings, you are welcome to contact the Research Administrator of the Division of Particle and Nuclear Physics, Karin.Lennebo@fysik.lu.se , thereby referring to "NuPECC Meeting Lund".