“Is there a code that says we can’t add a skylight to the porch roof?”

photo by Mark Andre

“Dear PoPville,

Our row house porch roof is in need of repair, probably full rebuild. Is there a code that says we can’t add a skylight to the porch roof?

I don’t recall our zone, but I’m pretty sure it’s residential only. We live on the east side of the 5100 block of New Hampshire Ave. NW in Ward 4.”