If you just visit street parking are plenty, especially near the end of the area near the park.

The Guenther House & Restaurant are the best places to find restrooms.

The homes are not open for tours. It's a neighborhood self walking tour so I presume you can go at anytime before dark.

We didn’t see a visitor center- we walked from the Riverwalk and all around the area looking at the historic homes.

There is a great walking map online if you google King Williams District San Antonio. It gives descriptions of all the historic homes including when built, by who, and for who. When you get there coming in from San Antonio on the historic marker on a gate/fence there were copies of the walking map with the same info.

We just drove slowly up And down the streets looking at the beautiful homes. You may find a guide online.

We used the brochure from the Visitors Center to walk around on our own.

No tickets required. It's justa. Really me neghborhood. You can walk there from downtown, but it might be a bit of a long walk, but the riverwalk will get you there. We had kids with us, so we took the hop on-hop off bus. It drops you off at the south end of the district, then you can wander and pick it up again. There are a couple houses that are operated as historical museums, and there is admission for those. If you take though alamo street as your way out, you get into a cool area with some good shops, bars, and restaurants. Very safe area. Felt perfectly comfortable with the kids, no concern at all about that.

This is a three page PDF version of one of the leaflets which can be picked up for free from a rack outside one of the houses. It also gives some interesting information about the various architectural features of the houses. I've had to split the link because TripAdvisor doesn't allow web links in posts so copy and paste and then remove the * and other spaces in between the sections. king * william * association * . * org * / * kwa * / * images * / * p * d * f * s * / * king * william * walking * tour * . * p * d * f

We parked along the side of one of the streets and walked around the district but - if I remember rightly - there's parking very near (or even at) the restaurant as well so if you don't go at a busy time like lunch time or in the evening you should be able to park there without a problem.