Truly anxiety inducing for some reason.

There were other houses on the street built the same way. Apparently the road at the bottom of the street floods each high tide

Then you think as to why they just don't build the house higher

Totally makes sense.

Its about 300 years old. I guess something changed?

If high tides occur frequently there, there should be marks left at least on the bottom of the step. This scene is too neat for what you claim it is.

Its Bosham in the UK.

Look it up if you are so smart. The houses that REGULARLY FLOOD front the sea at shore rd further down the road.

These are a street or so back and can flood less frequently.

Use google to travel along shore road virtually and you will see watermarks on the walls

This is the map reference for the house

(50.8287094, -0.8573312)

Junction of high street / bosham lane

I’m amazed at how little space there is from the door to the actual road. How do they not have people hit by cars all the time?

Because its a small English village with restrictions on traffic.

Bosham in southern England

Its a modified doorway. Looks like it used to be full height to me. It is very normal for houses to flood and be immediately onto the street in english coastal towns as they were built a long time ago From stone so not easily modified except in this or similar manner) cornwall uk here

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But why not have another step? Does English seawater know how to climb steps?