Transaction record
- Sale price
- $6,550,000
- Recorded date
- Mar 31, 2026
- Evidence
- Supplemental state parcel sale history
- Confidence
- Supplemental
Observed public-record sale
28 Thunder Mountain Road
Recorded March 31, 2026 in Greenwich, Connecticut.
Recorded sale price$6.55MSupplemental evidence
Latest public parcel profile
- Main living area
- 7,323 sq. ft.
- Land
- 2.00 acres
- Year built
- 2005
- Bedrooms
- 7
- Total rooms
- 15
- 2025 assessed total
- $4,037,250
- Assessment neighborhood
- 161100
Parcel facts are the latest owner-free public assessment context and may postdate this transaction.
Synthetic Twin · untouched historical test
What comparable public records implied before seeing this sale
This transaction was in the model’s untouched test subset. The comparison is historical model evaluation—not a current appraisal.
Model midpoint$10.06M
Likely range$8.23M–$12.29M
Recorded vs. midpoint-34.9%
Model confidenceMedium
Observed history at this normalized address
4 recorded sales
Free weekly briefing · Greenwich edition
Follow Greenwich sales like this one, every Thursday
The free Thursday briefing covers new Greenwich recorded sales, price moves and planning decisions, with the public record behind each one.
Free · Thursday email · unsubscribe anytime. Prefer Substack? Subscribe there instead.
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.
← Return to all recorded sales · More sales on Thunder Mountain Road