In no particular order:

http://www.ad-as.com

http://www.concretechange.org

http://www.homemods.org/

http://handicapped.coolhouseplans.com/

http://www.b4ubuild.com/plans/accessible_design.shtml

http://www.trspace.com/

http://www.eplans.com/features/universal-design.hwx

http://www.uniteddesign.com/accessible_plans.html

http://www.disabled-world.com/disabi...ibility/homes/

http://www.new-horizons.org/houuni.html

http://www.makoa.org/accessable-design.htm

http://www.wheelchairnet.org/WCN_Living/homemod.html

http://www.vet.purdue.edu/cpr/bsd/building.html

http://www.bobvila.com/HowTo_Library...sign-C256.html

http://www.wheelchairramp.org/

http://www.unitedspinal.org/publicat...cessible-home/

http://www.abledata.com/abledata.cfm...ectionid=19326


Books:

http://www.pva.org/site/News2?page=NewsArticle&id=8124

http://www.pva.org/site/News2?page=NewsArticle&id=8128

http://www.amazon.com/exec/obidos/AS...7/b4ubuildcom/

http://www.amazon.com/Universal-Desi...ref=pd_sim_b_1

http://www.amazon.com/Residential-De...ref=pd_sim_b_2

http://www.b4ubuild.com/books/universal_design.shtml



Legal resources:

http://www.hud.gov/progdesc/s-504.cfm

http://www.hud.gov/offices/fheo/partners/FHIP/fhip.cfm

http://www.hud.gov/offices/fheo/progdesc/title8.cfm

http://www.huduser.org/publications/.../blueprin.html

Please add more!

(KLD)