Description of the dataset:
Many german cities compose so-called rent standards to make a decision making instrument available to tenants, landlords, renting advisory boards and experts. The rent standards are used in particular for the determination of the local comparative rent (i.e. net rent as a function of householde size, equipment, year of construction, etc.). For the composition of the rent standards, a representative random sample is drawn from all relevant households, and the interesting data are determined by interviewers by means of questionnaires. The dataset contains the data of 2053 households interviewed for the munich rent standard 2003. 

The data at hand is from
http://www.statistik.lmu.de/service/datenarchiv/miete/miete03.html

Variables:
nr:         Net rent in EUR
nrsm:       Net rent per square meter in EUR
space:      Floor space in square meters
rooms:      Number of rooms
constryear: Year of construction
district:   Urban district
addrgood:   Good residential area? (1=yes,0=no)
addrbest:   Very good residential area? (1=yes,0=no)
ww0:        Hot water supply? (0=yes,1=no)
ch0:        Central heating (0=yes,1=no)
bathtiled0: Is the bathroom tiled? (0=yes,1=no)
bathextra:  Extra features in bathroom? (1=yes,0=no)
kitchen:    Well equipped kitchen? (1=yes,0=no)