Older cores behind newer faces

Moderate18 supporting entries

Strength is how much of our gathered material lines up with the pattern. It is not the odds that the idea is true.

The working idea

Over and over the record itself says a 'new' building sits on, around or inside something older: a surviving medieval hall, a re-used palace core, a refaced 18th-century block, an old fort, prison or citadel site, a temple under a church. Common sense: if this is admitted in these cases, the same thing may have happened in others where nobody wrote it down, and the 'built' date may really be a 'refaced' date.

Strongest examples

Writers' BuildingDated 1777, refaced in Greco-Roman style a century later.

Palace of WestminsterA vast 'new' Gothic palace wrapped around an 11th-century hall.

The evidence

Entries where the record says the building sits on, around or inside an older structure

18 entries

Open questions

How many 'completed' dates in the 1865–1915 window are really refacing dates?
What do wall cores look like where restorers have opened them?

What would support it

Restoration reports finding older masonry inside walls dated to the 1800s.
Mortar or brick dating older than the recorded build.

What would rule it out

Restoration reports showing uniform construction matching the recorded dates throughout.

Selection bias

Low to medium.

The rating counts how much of our gathered material lines up with the pattern. It is not a probability that the hypothesis is true, and every count is limited by which buildings were picked for the app (see 'selectionBias' on each card).

Next hypothesis

Moderate17 entries#13Built for people who hadn't arrived yetSeveral asylums open almost empty in huge buildings, then fill to many times their design size within a few decades. Common sense says you build for the need you have. Building first and filling later suggests either the buildings were there before the need, or someone planned for a large incoming population ahead of time.

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