Tract guide · Big Sky, Simi Valley

Tioga at Big Sky

Tioga is Big Sky's southernmost village: 52 houses on Moonstone and Ziron avenues, Swan Falls Street, Griffon Court and Iolite Avenue, just east of Erringer Road off Legacy Drive. Its lots are the smallest in Big Sky, mostly about 5,200 to 9,000 square feet.

Well documented: confirmed in official or multiple independent records.
Updated October 16, 2026 · Corrections: send a correction

At a glance

Tioga at Big Sky quick facts

Also called	Tioga, Tioga in Big Sky, Big Sky - Tioga
Neighborhood	Big Sky, Simi Valley
Built	about 2005-2006
Homes	52
Home types	Single-family detached homes in three plan sizes of about 2,350, 2,500 and 2,670 sq ft, including two-story plans (county assessor data)
Lot sizes	Mostly about 5,200-9,000 sq ft (median about 5,800 sq ft)
Streets	Moonstone Avenue, Ziron Avenue, Swan Falls Street, Griffon Court, Iolite Avenue
Tract map	Ventura County Tract 5182: 6 units recorded 2003–2005 (149 MR 18 – 153 MR 19), about 1,009 acres
Gates	Not gated
HOA	Big Sky Association (master association) — No separate Tioga village association is known. Managed by GM Management. Dues were about $260 a month in 2026 home sales.

Outline shows the whole recorded Tract 5182 (county GIS), shared with another guide; seven other guides cover parts of it, and the county map doesn't mark this guide's own part. Other outlines are neighboring tracts in Big Sky.

About

About Tioga at Big Sky

County records show three floor plans of about 2,350, 2,500 and 2,670 square feet, and sales began in August 2005; at least one house was a former model. The lots come from Big Sky's first final map, Tract 5182-C-1, recorded Dec. 31, 2003, with Shea Homes and D.R. Horton both named as owners, so the map doesn't show which of them built these houses. Streets are public and ungated. Owners belong to the master Big Sky Association; no separate village association is known.

Schools

Schools for Tioga at Big Sky

School attendance areas

Simi Valley Unified School District
On SVUSD's attendance-boundary map (elementary map revised December 2023), this tract's recorded outline falls in:

Elementary: Atherwood Elementary School
Middle: Hillside Middle School
High: Simi Valley High School

The outline used is the whole recorded Tract 5182, which this guide shares with other guides; the county map doesn't draw this guide's own part.

These come from the district's own data, not from this site. Assignment goes by address, and districts change boundaries and run choice and transfer programs. Confirm with School Boundary Maps, or check an address here.

Part of

Big Sky, Simi Valley

Big Sky is the master-planned community that fills Sand Canyon at Simi Valley's northern edge, north of the 118 Freeway at the top of Erringer Road. Shea Homes led the development, and the tract maps were recorded between 2003 and 2005. About 750 homes went up, most of them from 2005 to 2007, in nine production villages plus roughly 30 custom estates.

The Big Sky guide: HOA, schools nearby, services →