The housing market in Santa Clara County, CA, moves fast - homes spend roughly 18 days on market before selling. For buyers specifically looking for new 55+ developments in Silicon Valley, the inventory is even tighter. As of mid-2026, the median sale price across the county sits around $1,645,358, and age-restricted new builds often reflect that premium pricing.

Downsizing or relocating to an active adult community here requires a clear picture of what's actually being built right now. The broader Bay Area has several large-scale retirement developments, but the core of Silicon Valley has a much smaller footprint for brand-new age-restricted construction. You need to know exactly where to look - and what to expect on pricing and local tax benefits before you start touring.

The Landscape for Active Adult Living in Silicon Valley

One thing this area genuinely has going for it is healthcare access. Stanford Health Care-Stanford Hospital in Palo Alto holds a 5-star CMS rating. El Camino Health runs campuses in Mountain View and Los Gatos, and you'll find Kaiser Permanente centers in Santa Clara and San Jose, plus Good Samaritan Hospital, O'Connor Hospital, and Santa Clara Valley Medical Center all within range.

What you won't find as easily is new construction specifically zoned under the Housing for Older Persons Act (HOPA). Regionally, builders like Lennar, Shea Homes with their Trilogy brand, and Toll Brothers are active in the 55+ space across the Bay Area. Within the core cities of Santa Clara and San Mateo counties, though, brand-new age-restricted neighborhoods are rare compared to standard residential developments - and that gap matters when you're setting expectations.

Active Adult Communities Building in the South Bay

Foster Square is the primary new 55+ active adult community actively selling in Sunnyvale, CA, right now. It features modern floor plans designed for single-story living and low-maintenance exteriors, with prices currently ranging between $1,260,000 and $1,600,880.

Beyond Foster Square, you're mostly looking at established communities rather than fresh builder launches. The Villages Golf & Country Club in San Jose is the largest 55+ community in the area - over 1,000 homes, with a total of 2,536 residences. It's a resale neighborhood, not a new development, but it remains a significant draw for buyers who want a dedicated active adult environment in the South Bay.

Major Builders in the Region

Toll Brothers is the most active large builder in the immediate Silicon Valley area. Their recent Sunnyvale projects - Outlook at The Station and Terraces at The Station - offer luxury condos and townhomes. Those specific Station developments are not confirmed as age-restricted 55+ properties, so don't assume the age restriction carries over just because the builder is involved elsewhere in that market.

If you require strict 55+ zoning and want a newly built home from a major developer, you'll need to broaden your search beyond the immediate San Jose and Sunnyvale borders. Expanding slightly into the wider Bay Area opens up more options. For reference, nearby non-age-restricted new condos in Sunnyvale start in the upper $800,000s to mid-$900,000s - useful as a baseline when you're comparing what the age-restricted premium actually costs you.

What to Expect from Community Amenities and Upkeep

New 55+ developments typically center around shared facilities - clubhouses, fitness centers, pickleball courts, walking trails. It's a meaningfully different environment from a standard subdivision, and for a lot of buyers that's exactly the point.

The HOA maintains those shared spaces year-round, and in most of these communities it also handles exterior upkeep including front yard maintenance. That reduction in daily workload is one of the main reasons people choose this type of community. That said, review the specific HOA documents carefully before you close - you want to confirm exactly which exterior repairs and landscaping tasks fall under the association's responsibility, because it varies more than you'd expect.

Prices, Taxes, and HOA Dues for 55+ Buyers

New construction carries a premium over resale in this market. New 55+ homes in Sunnyvale's Foster Square start around $1.26 million to $1.6 million. Resale condos in an established community like The Villages Golf & Country Club in San Jose can often be found for well under $500,000. That's a wide range, and where you land depends entirely on whether new construction is a requirement for you or just a preference.

California does give older homeowners a meaningful tool to manage costs when relocating. Under California Proposition 19, which took effect in 2021, homeowners age 55 or older can transfer their Proposition 13 assessed property value to a replacement primary residence anywhere in the state - up to three times in a lifetime.

Qualifying for Proposition 19

To use the tax transfer, either the claimant or their spouse must be 55 or older at the time of the sale. The replacement home also has to be purchased within two years before or after selling the original property. This law superseded the older Propositions 60 and 90, which previously governed intra-county and inter-county transfers.

Run the numbers with a tax professional before you close. When you factor those potential savings against monthly HOA dues, you get a much clearer picture of what you're actually carrying each month - and that makes comparing properties a lot more straightforward.

How to Buy a New Build in an Age-Restricted Community

Touring a new development sales center in Silicon Valley means dealing directly with the builder's sales representatives. They work for the developer. Their job is to protect the builder's interests, not yours. Bring your own real estate agent to your first visit so you have independent representation from the start - not as an afterthought once you've already fallen in love with a floor plan.

A dedicated buyer's agent can help you negotiate lot premiums, evaluate design center upgrades, and review builder warranties. They can also put the pricing of a new 55+ unit in context against nearby non-age-restricted new construction, which is useful in a market where the premium isn't always obvious at first glance.

Frequently Asked Questions

Where exactly in Silicon Valley are developers building new 55+ active adult communities right now?

Buyers who cannot secure one of the limited HOPA-zoned units in Sunnyvale often need to expand their search radius. Exploring regional projects by builders like Lennar or Shea Homes provides a wider range of available floor plans outside the immediate South Bay core.

Can my younger spouse or adult children live with me in a Silicon Valley 55+ community?

It depends on the specific community's homeowners association rules. Under the Housing for Older Persons Act (HOPA), communities enforce strict age requirements, though some allow a younger spouse to reside there as long as one person is 55 or older. Read the governing documents to confirm restrictions on adult children before you commit.

How much are typical HOA fees for new senior developments in the South Bay, and what do they cover?

These assessments replace individual maintenance costs with collective expenses, so factoring them against your potential Proposition 19 tax savings provides a clearer financial picture. Confirm exactly which exterior repairs fall to the homeowner versus the association to accurately compare total monthly carrying costs.

How early do I need to get on the waitlist for pre-construction 55+ homes in Silicon Valley?

Waitlist timelines depend on the builder's current construction phase. With only 1.7 months of housing supply across Santa Clara County and strong demand for properties, register with the builder's sales office as soon as a new phase is announced.

What are the resale and inheritance restrictions if I leave my 55+ property to my non-senior kids?

It depends on the community's governing documents. Non-senior children can usually inherit the property, but the homeowners association often restricts them from occupying the home full-time unless they meet the 55+ age requirement.

How does buying into a new 55+ community compare to purchasing a single-story home in a regular San Jose neighborhood?

Buying in a new 55+ community like Foster Square carries a premium - prices start between $1,260,000 and $1,600,880. General downsizing-focused single-story homes in the broader region can start around $450,000 depending on the property type, though they don't come with dedicated age-restricted amenities.