Big Sky Simi Valley spans over 2,000 homes built from 2005 through 2022, making it one of the largest master-planned communities in Simi Valley. If you're shopping Big Sky homes, understanding which phase you're buying into matters—it affects lot size, square footage, pricing, and annual Mello-Roos assessments. This guide breaks down all three phases so you can make an informed decision.
What Is Big Sky Simi Valley?
Big Sky is a mixed-income master-planned community in northwest Simi Valley with parks, pools, fitness centers, trails, and community amenities shared by all residents. The community was planned in phases to accommodate infrastructure buildout and market demand over nearly two decades. Today, it's fully built and represents a cross-section of Simi Valley home values and lot sizes.
All Big Sky homes carry Mello-Roos special assessments to fund schools, parks, and infrastructure. The amount you pay depends on your tract, which is tied directly to the phase in which that tract was built.
Big Sky Phases at a Glance
| Phase | Years Built | Tracts | Typical Price | Mello-Roos Range | Typical Floor Plan | Key Features |
|---|---|---|---|---|---|---|
| Phase 1 | 2005–2010 | 1–6 | $1.1M–$1.4M | $1,800–$2,400/yr | 2,500–3,500 sq ft | Larger lots (7,500+ sq ft), mature landscaping, established community |
| Phase 2 | 2011–2016 | 7–12 | $1.4M–$1.7M | $2,200–$3,200/yr | 3,000–3,800 sq ft | Updated floor plans, modern kitchens, mixed lot sizes |
| Phase 3 | 2017–2022 | 13+ | $1.5M–$2.0M | $2,800–$3,800/yr | 3,500–4,500+ sq ft | Newest construction, open-concept, smart home tech, energy-efficient |
Phase 1: Established Foundations (2005–2010)
Phase 1 homes are the original Big Sky build. These homes sit on the community's largest lots—many 7,500 to 8,500 square feet—with mature trees, established landscaping, and room for pools or extensive outdoor living. Floor plans range from 2,500 to 3,500 square feet, typically across three bedrooms and two or three baths.
Phase 1 pricing falls in the $1.1M to $1.4M range, making them the most affordable entry point into Big Sky. Mello-Roos assessments are the lowest: $1,800 to $2,400 per year. Buyers in Phase 1 are drawn to the extra land, lower annual fees, and the fact that community amenities are fully paid for. Homes have been lived in for 15+ years, so you may encounter deferred maintenance or updates needed in kitchens and bathrooms.
Phase 2: Modernization Era (2011–2016)
Phase 2 represents the middle of Big Sky's development. These homes split the difference: newer construction than Phase 1 but not as current as Phase 3. Typical floor plans grow to 3,000 to 3,800 square feet with updated kitchens, modern bathroom features, and better energy efficiency than Phase 1. Lot sizes compress to 6,500 to 7,500 square feet on average.
List prices typically fall between $1.4M and $1.7M. Mello-Roos assessments climb to $2,200 to $3,200 per year, reflecting the additional infrastructure and amenity improvements built during this phase. Phase 2 homes appeal to buyers wanting modern finishes without the premium pricing or smaller lots of Phase 3.
Phase 3: Latest & Largest (2017–2022)
Phase 3 homes are the newest and most feature-rich. Floor plans expand to 3,500 to 4,500+ square feet, with open-concept living, modern appliances, smart home systems, solar readiness, and high-efficiency HVAC. Most Phase 3 homes were built to 2018+ standards and appeal to buyers wanting turnkey newer construction.
Lot sizes are the smallest in Big Sky—typically 6,000 to 7,000 square feet—reflecting modern density preferences and land efficiency. Pricing reflects the newness: $1.5M to $2.0M range. Mello-Roos assessments are the highest: $2,800 to $3,800 per year. Phase 3 carries the lowest maintenance risk and newest technology but premium pricing and highest annual fees.
How to Identify Which Phase a Listing Is In
Look at the MLS listing or the property deed for the tract number. Early tracts (typically Tracts 1–6) are Phase 1. Mid-phase tracts (7–12) are Phase 2. Newer tracts (13 and beyond) are Phase 3. You can also cross-reference the year the home was built—homes constructed 2005–2010 are Phase 1, 2011–2016 are Phase 2, and 2017–2022 are Phase 3. When in doubt, ask your listing agent to confirm the exact phase and pull the current Mello-Roos statement from the title company.
Phase Comparisons: Trade-Offs for Buyers
Choosing between phases is about priorities. Phase 1 buyers are maximizing lot size and keeping annual Mello-Roos costs down; you're buying a 15+ year-old home that may need updates but has established landscaping and the most outdoor space. Phase 2 is the compromise—fresher than Phase 1, less expensive than Phase 3, with moderate lot sizes and fees.
Phase 3 buyers prioritize modern construction, open floor plans, and minimal maintenance. You accept smaller lots and the highest Mello-Roos fees ($2,800–$3,800/year) for the newest systems and features. All three phases appreciate steadily, so the "best" phase depends on your budget, lifestyle, and timeline to sell.
Frequently Asked Questions
What is Big Sky Simi Valley?
Big Sky is a large master-planned community in Simi Valley built over 17 years in three phases, starting in 2005. It features over 2,000 homes across multiple tracts with varying price points, lot sizes, and Mello-Roos costs depending on the phase of construction.
How do I know which phase a Big Sky home is in?
Look at the tract number and subdivision name on the deed or MLS listing. Early tracts (Tracts 1–6) are Phase 1 (2005–2010). Mid-phase tracts (7–12) are Phase 2 (2011–2016). Later tracts (13+) are Phase 3 (2017–2022). Your real estate agent can confirm the exact phase and Mello-Roos obligation.
What's the difference between Phase 1 and Phase 3?
Phase 1 homes (2005–2010) sit on larger lots (7,500+ sq ft typical) with lower list prices ($1.1M–$1.4M) and moderate Mello-Roos fees ($1,800–$2,400/year). Phase 3 homes (2017–2022) have smaller lots, larger floor plans (up to 4,500+ sq ft), list prices $1.5M–$2M, and higher Mello-Roos fees ($2,800–$3,800/year).
Which phase is the best investment?
That depends on your priorities. Phase 1 offers more land and lower annual fees but older features. Phase 2 offers a middle ground. Phase 3 has the newest construction, open layouts, and smart home technology, but carries higher Mello-Roos and list prices. Market appreciation has been steady across all phases.
What are Big Sky Mello-Roos fees?
Mello-Roos are special property taxes for community improvements. Phase 1 ranges $1,800–$2,400/year, Phase 2 $2,200–$3,200/year, Phase 3 $2,800–$3,800/year. These are in addition to regular property tax and vary by exact tract. Always verify the exact amount during escrow.
Are Big Sky homes appreciating?
Yes. Big Sky has seen consistent appreciation due to its master-planned amenities, strong schools, proximity to employment centers, and limited large-lot inventory. Phase 1 homes offer lower entry price with equity upside; Phase 3 homes command premium pricing due to newer construction.
What amenities come with each phase?
All Big Sky residents have access to the community pool, fitness center, parks, and trails. Phase 3 homes feature updated smart home technology, open-concept living, and energy-efficient systems. Phase 1 homes offer larger backyards suitable for pools and extensive landscaping.
Work with Brian
If you're buying or selling in Big Sky Simi Valley, understanding the phase, lot size, and Mello-Roos obligation is critical to making the right offer or pricing your home competitively. Brian Cooper has 20+ years of Ventura County real estate experience and an 18-day average days-on-market. I'll help you navigate Big Sky's phases and find the right phase for your budget and lifestyle. Contact Brian or call (805) 723-2498.
