* Center for Inclusive Design and Environmental Access, Rehabilitation Engineering Research Center, School of Architecture and Planning, University of Buffalo. Offers a free booklet on visitability. Call 716-829-3485, ext. 329; www.ap.buffalo.edu/idea.

* Center for Universal Design, North Carolina State University. E-mail cud@ncsu.edu. Call 800-647-6777; www.design.ncsu.edu/cud/.

* Concrete Change, a Georgia activist group, provides information on how to make a home visitable. The group's Web site, www.concretechange.org, has construction guidelines for visitable homes and expected costs for making changes before construction and after. Contact the group via e-mail at info@concretechange.org.

* Floor plans offering wheelchair-

accessible designs are offered in a variety of places, including the book "Building for a Lifetime: The Design and Construction of Fully Accessible Homes" by Margaret Wylde, Adrian Baron-Robbins and Sam Clark (Taunton Press, 1994). Call 800-888-8286.

Design Basics Inc., the nation's largest floor plan publisher, offers 16 "universal design" floor plans in its inventory of 1,400 home plans. The plans range in cost from $500 to more than $1,000. See www.designbasics.com or call 800-947-7526.

* Georgia's EasyLiving Home program certifies those that build homes that are easy for all to live in and visit and encourages builders of single-family homes and townhouses to incorporate several specific features. The trademarked program hopes to have 1,000 homes certified by the end of the year and is working with a Georgia floor plan publisher to develop wheelchair-accessible plans. See www.easylivinghome.org or call 770-270-1611.

* The Housing and Urban Development Department recently announced a campaign to give home builders, developers, architects and designers access to the latest training and technical guidance on complying with accessible design and construction requirements of the Fair Housing Act. The Fair Housing Accessibility First program is at www.fairhousingfirst.org. Those with questions about legal and technical requirements in the Fair Housing Act can call 888-341-7781 or e-mail contact@fairhousingfirst.org.

* National Center for Seniors' Housing Research, an arm of the National Association of Home Builders Research Center and the Department of Health and Human Services' Administration on Aging, offers resources for builders and consumers to make homes accessible. The center's Smart Ideas checklists show floor plans and exterior and interior design criteria. A directory of accessible-building products is also available at www.nahbrc.org.

The NAHB Research Center's LifeWise Home opened in December in Bowie. It is designed to be energy-efficient, low-maintenance and accessible for older homeowners or those who use a wheelchair or walker, or have other mobility issues. The next tour is April 8 from 1 to 3 p.m. For more information on tours, or to arrange a large group tour, call 800-638-8556, ext. 6208, or e-mail lifewisetours@nahbrc.org.

* National Resource Center on Supportive Housing and Home Modification, University of Southern California. Offers a National Directory of Home Modification Resources with listings by state. Call 213-740-1364; www.homemods.org.

* Paralyzed Veterans of America Architecture and Barrier-Free Design Program. Offers free information on universal design and accessibility. Call 800-424-8200, ext. 645; www.pva.org. In Washington, 202-416-7645.