Like you Roger I can't help much either. Unlike some of the churches in the inner Forest which were built in the late 1800s, St Peters originates long this, so no clues there regarding Baptisms in 1880. Here's a very extensive history of St Peters, which tells us the fire took place a year after that Giddings baptism, so again no clues in that respect.

"The church of ST PETER, so called in 1310, originally stood on the Nab by the river's edge. In the 14th century it was replaced, on a new site at the top of the town, by a church that was largely rebuilt in 1875; the new building was mostly destroyed by fire and rebuilt in 1881."

From https://www.british-history.ac.uk/vch/glos/vol10/pp46-49

Based on this history I suspect the Baptism took place at the "later" aka current Church site, but it's really just a guess, hopefully the site Admin can help clarify.

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I'm sure this question of "Church or Chapel" has been asked on the forum in the past, I know I wondered when I first saw the word "chapel" used when I thought the word should be Church (albeit based only on my limited personal CoE experience and not any expert knowledge!), but that was before this site made me aware of the huge number of non-Conformist etc chapels that were once prolific through-out the area.
However I cannot now find that old post again. I believe I'm right in saying the word "Chapels" is used in the PRs Database as a "catch-all" for both "Parish Churches and Non Conformist Chapels", and I think that any cases that differ from this are highlighted within the transcription of the PR concerned.

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Searching the net for "old Chapel Newnham" suggests it is indeed now a private residence. Hopefully this is the same building Ros refers to ?
http://churchdb.gukutils.org.uk/GLS897.php

If so, judging by the history on that link, I'd say this Chapel is referred to within this site's PRs as "Newnham & Blakeny Tabernacle", thus leaving those PRs described as "Newnham" to be at St Peters.

I have tried to find a definitive answer for you, but without success. My great grandparents were married at St Peters in 1857. One of my grandfathers brothers is buried there (1940). I know it burnt down subsequently to 1857, but was rebuilt and is the church now. I don't know of any other building as you mention now being a private residence. Hopefully someone else will know.

The following is the link to the old chapel in Newnham which caused me to pose the question.http://churchdb.gukutils.org.uk/GLS897.php

On further investigation it does look as if it was for Non Conformists.
Thank you so much for taking the time time to reply. Ros.

Thankyou.

If the church/chapel in the transcript is said to be a place such as Newnham and does not add the name of a denomination such as Baptist, Methodist etc then it will be a Church of England Parish Church. The Parish Church in Newnham is know as St Peter. Looking at the Baptism Record on Ancestry you will see at the top of the page "Church of England Baptisms" and the words "Baptisms solemnized in the Parish of Newnham".
Other denominations such as Baptist, Methodist etc are known as Non Conformist.
Hope this helps

Thank you very much for clarifying the information for me. My grandfather Jesse Giddings was one of 7 siblings, two of which were baptised at the Rodley and Walmore Hill Methodist Chapel. The eldest Joseph Guy was baptised C. of E. in Newport and the other 4 including my grandfather were baptised in Newnham. All 4 records say "Church of England Baptisms" so now I know it was St. Peter's Church. I did get confused with the definition of "Chapel".

My great grandfather William James Giddings is also mentioned on your website in the inquest section. He was a signalman at Newnham Station. On 27th March 1898, William was found dying in his signal box. Age 55 he left a wife and 5 surviving children.

This is my first post on your forum. I very much appreciate all the replies. Ros.