These building a bit like a industry set. They accept cargos but do not produce any except for passengers and mail.
My idea of this is for town to accept extra cargos becides just passengers, mail, food and goods.
Also add sme buildings not included in the original TTD set and some other town sets such as schools, hospitals, ambulance, police, firebrigade and some shopping centres.
EDITED:
Just added a "clock tower" and "wells".

- Clock and Wells.png (34.4 KiB) Viewed 6909 times
They accept the following cargos.
Gold, Diamonds, Valuables, Passengers, Tourists, Goods, Foods, Water, Mail, Workers and Tourists from OTIS Industry set, and the Workers and Tired Workers from the Yety set.
Maybe you can think of cargo that be handy if it accepted as there is room for 3 more.
I was talking to a friend yesterday and he thinks we don't need all those buildings. Just a few like the clock tower and it accept the main things like I have shown. The clock tower would only be seen in towns with a population of 2,600 and greater.
The Clock towel becomes available in 1859 (as the Tower of London had its clock install that year). If any one knows of a tower clock built before that please let me know.
I needed something to go in middle of a small town so I choose the "Well" to build in towns populatioin 150 and greater from 1700 to 1920. If you have a idea for something else instead of the well let me know.
So, if there is any building you do not want in your game just go to "Set Parameters" in the NewGRF Settings and disable them.
depends on what feed back I get how soon this set will be avaialble for upload.
Cheers