ᐅ Raising the window wells as a precaution against flooding?

In my community, it was recommended to possibly raise the light wells to prevent water from entering the basement in case of heavy rain. What do you think about this? Although I don’t live directly in a flood-prone area, who knows what it will look like in a few years.

It’s not possible to make a general statement about this. There are far too many factors involved to determine the appropriate measure. If the ground level of my property is 2m (6.5 feet) higher than that of the neighboring plots, I will have fewer problems with surface water compared to my neighbors. Also, if the soil allows for quick infiltration, this is an advantage. In the case of soil where hydrostatic pressure from groundwater is expected, simply raising the installation is not enough, because then the water does not come from above but from below and from the sides into the light well.

In theory, the light well can initially be installed flush with the ground level. If there are concerns later on, there are (at least with ACO) extension parts that can be added on top of the light well.

If you have any doubts, I would recommend having your on-site conditions assessed by an expert or an MEP planner so that the measures relevant to your house can be determined.

The higher, the better. And make sure to provide ways for water to flow out of the property.

If the house is truly at risk, I would rather seal the basement windows with glass blocks and install additional forced ventilation for the basement rooms. This, of course, only helps with minor flooding and if the entrance is elevated.
Porch door??
The basement entrance might possibly be secured with a fire-rated steel door (with sealing lips).
However, with water levels like those at the Ahr river a few weeks ago, there is probably no solution.

Make sure the ground around the house slopes gently away from the building in all directions.
Also, as mentioned before, guide the water flow intentionally.
Keep in mind that during heavy rain, street drains (gullies) may not be able to absorb all the water and can overflow, potentially causing problems for you.

It can’t hurt to follow the local authority’s recommendation. Additionally, I would consult a professional – my first point of contact would be the EU Copernicus, specifically the EFAS, and from there I would work my way toward my region.