Transaction record
- Sale price
- $45,000,000
- Recorded date
- Jan 15, 2021
- Assessment on sale record
- $19,964,630
- Evidence
- Official state transaction and reported property type
- Confidence
- High
Observed public-record sale
30 John Street
Recorded January 15, 2021 in Greenwich, Connecticut.
Recorded sale price$45.00MHigh evidence
Latest public parcel profile
- Main living area
- 13,418 sq. ft.
- Land
- 22.39 acres
- Year built
- 1939
- Bedrooms
- 8
- Total rooms
- 20
- 2025 assessed total
- $33,020,890
- Assessment neighborhood
- 180100
- Recorded buildings
- 2
Parcel facts are the latest owner-free public assessment context and may postdate this transaction.
Synthetic Twin
No test-set comparison on this record
This sale is not one of the untouched historical transactions used to evaluate Synthetic Twin. We do not generate or backfill a property projection merely to fill the space.
Observed history at this normalized address
3 recorded sales
Method guardrail
Nothing here is a fictional transaction
The sale row is preserved from a real public record, with its source and evidence grade. Where government sources conflict materially, the transaction is excluded rather than averaged into a made-up price. Model outputs, when available, appear in a separately labeled comparison panel.