Radial Y scale the box to 300%, then extrude some of the faces to
make a general building like layout.
now select the top of the building and extrude region on the Y axis
about one measure.
select the edge around the top of the building and extrude region
normal about one measure, creating the overhang.
to make the front porch, cut the lines in 2 and connect them
then select the two front faces and bridge them
next select the four faces in the hole, and cap them (dissolve in
wings3D)
perform a little vertex housekeeping, by removing unwanted lines
and adding in new ones that will prove convenient
raise the roof... lol... er somethin... by simply moving the faces up
on the y axis a few measures
now move the bottom faces down on the y axis to give the house
good depth...
select all the vertical lines on the 'levels' of the building, cut them
depending on how many floors you want, and connect the vertex's,
making some lines to work with....
go ahead and add in a few more cuts and connects (keeping in
mind that each face must not exceed 4 verticies) and make some
windows and doors.
with ALL windows and doors highlighted, intrude a the object to a
sufficient wall thickness...
notice how the inside has a lofted roof. if you don't want the lofted roof, make the roof after doing the intrusion. but for this tutorial the building will have a loft.
made a few additions to the interior, mostly cutting, connecting, extruding, and moving.... and I ended up with something like this.. again, make sure you are cleaning up your verticies, and keeping all faces with no more then 4 vertex each.
add in a few basic colors to designate what is what, allign the building to the 0,0,0 point, (rotate it to the z axis vice y axis for 3ds exporting in wings3D), UV map it, and then start exporting
that's pretty much the gist of it. now I didn't add in any of the bells and wistles... but I hope this tutorial on how I make buildings has helped you out a lot.