Well, this thread mentions, besides Tom Paxton,
parts of Boston which have changed
(cited in Paxton's lyric).

Columbus Avenue
and Shawmut Avenue are close to each other in the South End of Boston.

I was briefly acquainted with a historic South End church on Shawmut Avenue.
It was Holy Trinity, a Catholic parish that began with an influx,
centuries ago, of German-American immigration, thus the church was also Heiligste Dreifaltigkeit
("MOST Holy Trinity," for the pedants out there).

That church with its staunch German-American Catholic parishioners,
back in the day,
included the founders of an ensemble
which in time became the Boston Symphony Orchestra.
The acoustics in the sanctuary were remarkable
and the parish's music ministry was, also.

When the Archdiocese of Boston started shutting down parishes in the hundreds,
this parish fought tooth and nail to stay open.
The politics of it had layers, some of them very grimy.
This parish was not touched directly by abuse,
as the pastors were not abusers and were not accused.

But the parish's South End location is such desirable real estate ...
that there were those looking for any excuse to get their hot little hands
on the property, and to that end,
to get the parish shut down.

It worked.
I attended the final Sunday Mass there, with a defiant choir in full voice, and the music director playing the pipe organ for the last time.

Today it is condominiums.

Here's what the developer architects have to say for themselves.

This link may not work --
the above apologia by the architects was in response
to this Boston Globe editorial.