Current project actually started fall of 09
A building my model city lacked is a 'City Hall' I was looking for something interesting and a challenge to model and thought of the New Haven CT city hall where I once worked part time in 1960 helping them convert their computer programs from an IBM 305 RAMAC to an IBM 1401 format.
The building has undergone a restoration and the dark sandstone and limestone
façade I recall has been cleaned and polished. The building has be significantly
expanded. I will model only original 1861 portion shown in the following
photo. 
PS I did not take the photo and do not know who the person is. The building is a
combination of Portland CT sandstone (dark) and Nova Scotia limestone (light).
I have started the process by making castings of the windows. The model will be 24"wide, 33"tall and
9"deep.Once all the windows and doors are completed I will begin assembling the sides. I
will be posting my progress here. I see potential for using the windows to
create railroad stations, churches, and other brownstone buildings. There are 11
different windows on this building and I have posted the first five on my
'External page'
.2-25-10 Progress
I have succeeded in capturing almost all of the windows except
for the two story tower ones and the cluster of windows over the front doors
which I am treating as a big single window.
I have completed the window panel and the
stone moldings over the windows. 
Hopefully I have captured the essence of the prototype. The panel is assembled
from resin castings of the three different window patterns, resin castings of
the columns between the windows and the round stone work above the windows. All
other components are made from styrene. All of the stone work on this portion is
sandstone. FYI the Mayors suite is located directly behind the windows. The only
remaining window panel to complete is the 2 story one in the left side clock
tower.
Construction of the right side corner module is progressing. The
following photo shows what the 3rd floor upper corner front and side should look
like. 
The next photos show the current state of affairs.
Major
components have been created and held in place by rubber bands. I'm currently
working on adding the 'cording' detail to the corner columns edges. I will then
go back and detail the 3rd floor face plates with the header shown in the
photos. I do not plan on tackling the roof and dormers until I complete the
center portion face.
The individual stone facing will not be applied until the end and center modules are ruffed in, realistically detailed and assembled. I plan to follow this by the completion of the clock tower base, then the center and right side roof and finally the clock tower top.
Updates to be posted. Please feel free to comment and offer suggestions. Les