I suspect it's made up as a lighthouse of that size would normally be on the ocean shore and if that's the case with this one those houses are definitely too close to the water. It looks like a lake scene to me which wouldn't warrant a large tower such as this one.
I hope you have an answer to your question. I'm curious.
Would suggest the lighthouse and location as depicted existed only in the mind of the artist. And his little sailboat is about ready to run aground. The tower is far to large by comparison to the dwellings which is typical of a lot of lighthouse art work. It might well have been inspired by an actual lighthouse but was presented with a considerable degree of artistic license.
No doubt the person who created this drawing was inspired by a lighthouse or lighthouses in general and that person or someone who knew that person might provide some specific information that might identify the lighthouse.
Do you know the name of the artist and date of this drawing? Is it an original or a copy? I note there is no artist name or initials.
Dave The picture is on a birthday card I received,the person giving it asked was it based on a real lighthouse,having my doubts was the reason for the question. There are no details of artist etc.
I think it is only drawing but may be there must be a real place because no one can make a drawing without directly seeing the original lighthouse so someone must have seen the lighthouse and then drew on paper. To make drawing is difficult but if any architecture is seen directly then drawing can be made easily. What do you think? Is it real or created any drawing?