Narrow doors:

1) Remove the door.
2) Install special hinges.
3) Swing the door in the opposite direction.
4) Consider widening the doorway.

Round knob fixtures / hardware:

Replace with lever or handle style.

Switches, outlets and thermostats located too, high / low:

Use available products for remote control operation of switches and outlets; attach extensions to switches; lower thermostat.

Lack of maneuvering room in the kitchen for wheelchair:

Consider removing some base cabinets to provide maneuvering room and knee spaces under countertops.

Wall cabinets that are too high:

Lower existing cabinets, add some new cabinets or add a freestanding storage cabinet.

High countertops:

Substitute a drop leaf cart with wheels. Leaf can be raised for food preparation and cart can be rolled to stove and refrigerator.

Standard fire alarms:

For persons with hearing disabilities, install visual alarm systems that are triggered to go off when the standard alarm does.

Standard doorbells:

Again, visual devices can be attached to the doorbell, even the door itself, to alert persons with hearing disabilities to visitors.

Standard height bathroom fixtures:

Most hospital and medical supply companies carry products that can be added on to standard toilets to raise the seat height. Many types of adaptive bath tub and shower aids are also on the market.