Your town. A clearer picture.
How’s Shelter Island doing?
What are homes selling for, and how long are offers taking? Start with the local numbers.
This report uses OneKey’s Shelter Island postal area. Neighborhood boundaries may differ.
Monthly editionsSeptember 2026 · Single-family homes
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- Average sale price
- Not reported
- Median sale price
- Not reported
- Average DOMDays on market
- Not reported
- Median days to an offer
- Not reported
- Completed sales
- 0
- Month-end homes for sale
- 33
No single-family homes were reported closed in this area during September 2026. There is no completed-sale price average, median, high or low for this period. Inventory and offer-time figures use their own source measures.
The month’s completed sale prices
Highest completed sale
Not reported
Lowest completed sale
Not reported
Area-wide reported MLS sales, not all our team’s transactions.
Where does your home fit?
For the source-defined Shelter Island postal area, no single-family homes were reported closed in September, with 33 homes for sale at month-end. Completed-sale prices and a time-to-offer figure were not reported. This is a OneKey source snapshot for the postal area, separate from the township or Shelter Island Heights, and it may not include every local transaction. It cannot establish a price trend.
Have a real estate question about Shelter Island? Give me a call. Michelle and I can look at a broader set of relevant sales and help put the available figures in context for your home.
Shelter Island and Suffolk County, side by side.
September 2026 · Single-family homes
Same month and property type. A county covers a wider mix of homes.
September 2026 · Single-family homes
Same month and property type. A county covers a wider mix of homes.
| Measure | This month | Year over year |
|---|---|---|
| Average sale price | Not reported | Not reported |
| Median sale price | Not reported | Not reported |
| Average DOM — Days on market | Not reported | Not reported |
| Median days to an offer | Not reported | Not reported |
| Completed sales | 0 | +0.0% |
| Month-end homes for sale | 33 | +6.5% |
Your home. Your questions.
Curious what your town’s doing?
Call, text or email us.
Thinking about selling, wondering what your home is worth, or working through a real estate question? You don’t need to have it all figured out. We’re happy to help.
Kevin Collins & Michelle Bergin
Kevin Collins Real Estate Team · Signature Premier Properties
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Open or save the Shelter Island snapshot ↗
The report above gives the definitions and matching county comparison.
What’s behind the numbers?
Source: OneKey MLS, InfoSparks / MarketStats by ShowingTime and reconciled OneKey Matrix completed sales. Source checks: 2026-10-23 through 2026-10-23. Reporting month: September 2026. Single-family homes. Exact source geography: Postal City: Shelter Island.
Average means arithmetic mean; median is the middle completed-sale price. Days to an accepted offer use the source’s separate pending-data cohort, not time to closing. Inventory means active homes at month-end, not today’s listings. All prices, sizes, bedroom counts, years built and sale types are included within the stated property type. High and low are completed prices for this period and geography. A change in sales mix can change an average or median without the same change in every house. No home-specific appraisal or automated valuation is provided.
Information is deemed reliable but not guaranteed and may be revised. About OneKey’s market-statistics tools ↗