Thanks, I will post back if/when we ever do this.
Handyguys, your numbers scare me! I do agree that spending too much (my target is $50-75k), it just isn't worth it. I have more details on the "out" version (slightly older version) here: http://www.mindcapers.com/remodel/
, I came up with the "up" version recently, don't have it posted anywhere. I have a newer version of "out" that I was describing, the difference being it does not intrude on the garage space at all, but goes forward another 4'.
If I could do the out version for $26k, I'd jump on it. :lol While it is only a 260sf increase, it would completely change the livability of the house (info on the page linked above). Tearing down and starting over makes no sense is our area as there are lots of lots available, the real estate market here is going nowhere fast. Our current house/property (5 acres) is worth about $120k-150k more than available lots here. Our township and the adjoining areas require 2 acres minimum for a new house. The realty fee for selling our house would be about $15. We need to replace the roofing (guesstimate $7-10k) and siding (vinyl in bad condition anyway, guesstimate $10k) and probably windows ($5k) to stay or to sell. New construction around here for mid-range quality is about $100/sf.
I had been hoping that finding a way to keep the costs down, I thought these plans would do it by not touching existing plumbing, heating. Yes, additions do need heating, but these are both designed to have some passive solar heating (front is due south), and up would have a masonry stove in the new master suite. If that wouldn't be sufficient (say in the attic), radiant subfloor heating could be used. The only new plumbing in either plan is adjacent to existing plumbing and our fairly new (5 years old?) furnace could keep doing the good job it is in the existing house. Essentially, I left all the existing expensive stuff alone and the addition, with the exception of the master bath, is just basic space.
I "painted" the bathrooms obnoxiously different colors and took a cross-section snapshot to show where the only new plumbing would be on "up". The blue (lower-level, base elevation -37") and orange (current upper level, base elevation +5'7") bathrooms were redone 3 years ago. No changes to these needed. The green bathroom is the new master bath, base elevation 9'3". There is "dead space" (about 18") between the ceiling of the blue bathroom and the floor of the orange one, plus a bit of dead-space between the orange and green. I thought if it was all adjacent and the new was higher, a new tankless water heater for the master bath (old water heater would still service existing fixtures) would allow just cold water to and waste water back.
I hope this makes sense ... it is probably less complicated than it looks at first. Some smoke & mirrors to change the facade.