central heat (0=none,1-8 full/part)
0 = none
1 = full gas
2 = full elec
3 = full oil
4 = full solid
5 = part gas
6 = part elec
7 = part oil
8 = part solid

first time buyer y=2 n=1
1 = N
2 = Y

Garage (1=single/2=double/3=park space/4=none)
1 = single
2 = double
3 = space
4 = none

1 = detach
2 = semi
3 = terrace
4 = det ex-council
5 = semi ex-council
7 = country cottage
11 = det bungalow
12 = semi bungalow
31 = purp-built flat
32 = purpose maison
33 = convert flat
34 = convert maison