Home modifications can range from a simple ramp down to a porch or patio, to creative wheelchair-level gardens and play areas. This link (click here) from the spinal cord network discusses some of the many home modifications that may be considered as well as recommendations for financing and design.
Here is another link that provides ideas for home modifications to improve access: https://householdquotes.co.uk/disability-accommodation-guide/
Housing Accommodations Brochure: easy_access_housing
Disabled Home Modification Checklists and Funding
Home Modifications and Selling Your Home
Not all home modifications are expensive. This door hinge adds extra inches to the doorway width and costs very little compared with building a new doorway: expandable door hinge.