There are block reservations available until June at the following hotels (subject to availability):
In Kgs. Lyngby, 2km from DTU (transportation available by bus):
Scandic Eremitage,
http://www.scandichotels.com/Hotels/Denmark/Copenhagen/Scandic-Eremitage/#.Uyg7SqSKJ-4
Single room: DKK 1190 per night, including breakfast
Double room: DKK 1390 per night, including breakfast
Bookingcode: BDTU160814
In Copenhagen, 15km from DTU (transportation available by bus/train):
Best Western Mercur Hotel,
http://www.mercurhotel.dk
Single room: DKK 831 per night, including breakfast
Double room: DKK 1014 per night, including breakfast Book via email to booking@mercurhotel.dk and give reference number 67396.
Hotel Astoria,
http://hotel-astoria-copenhagen.h-rez.com/
Single room: DKK 795 per night, including breakfast Book via email to laha@brochner-hotels.dk and give reference number 225136.
Hotel SP34,
http://www.brochner-hotels.dk/our-hotels/sp34/
Double room: DKK 1170 per night, including breakfast Book via email to laha@brochner-hotels.dk and give reference number 225137.
Richmond Hotel,
http://www.profilhotels.com/richmondhotel/
Single room: 788 DKK, including breakfast
Double room: 895 DKK, including breakfast
Please book via email to richmondhotel@profilhotels.dk , and list reference number 4049107.
Note that the cancellation policy varies between the hotels, and that you might be able to find cheaper rates through other channels.