Walnut Creek HOA Guide
Rossmoor HOA Guide: Mutuals, GRF and Who Maintains What
Rossmoor is a 55+ community of 6,676 homes on about 1,800 acres in Walnut Creek, with roughly 10,000 residents. It is not one HOA. It is 23 separate associations called Mutuals, plus a nonprofit that runs the shared amenities.
New owners and new Mutual directors ask the same first question: who is responsible for what? This guide lays out the structure using Rossmoor’s own published information, so you know which body to go to.
Facts on this page were checked against Rossmoor’s public website and City of Walnut Creek sources on October 9, 2026. Fees change every year and each Mutual has its own documents, so confirm figures with Rossmoor before you rely on them. For citywide rules, see the Walnut Creek HOA Guide. Sources are listed at the bottom of the page.
How Rossmoor is organized
Rossmoor describes itself as organized into 23 homeowners associations called Mutuals, each governed by the Davis-Stirling Act. Every Mutual has its own board, governing documents, monthly fees and rules.
The Golden Rain Foundation (GRF), which does business as Rossmoor Walnut Creek, is the nonprofit that runs the amenities and community services. It holds the community-owned land, facilities and funds in trust for the Mutuals. It does not govern Mutual property. GRF has nine directors, one from each of nine districts, serving staggered three-year terms.
Co-ops, condominiums and Mutual 61
The kind of Mutual you are in changes what you own and what you pay. Rossmoor’s published counts:
A buyer comparing two Rossmoor homes may be comparing two different legal structures. Read the Mutual’s own documents, not a community-wide summary.
What the monthly coupon pays for
Rossmoor calls the monthly assessment the coupon. It is paid to the Mutual and has two parts. When we checked, Rossmoor’s ownership guide listed these figures:
The Mutual portion is where boards have the most control and the most responsibility, because it carries the reserve funding for roofs, siding, decks and paving.
What to do about it: Understanding HOA Reserve Studies and Planning Your HOA Budget.
Who maintains what
Rossmoor’s published guidance divides responsibility this way in most Mutuals. Your own Mutual’s documents control, and Mutual 61 and The Waterford differ.
The shared deductible deserves a director’s attention. A large loss in one Mutual can affect the others, and owners need their own policy for what the master policy leaves out.
Age and occupancy rules
Rossmoor’s published rule is that at least one designated occupant of a home must be 55 or older. Additional designated occupants must be 45 or older unless they are a qualifying caregiver, and no one under 18 can live in Rossmoor.
Some owners rent out their homes. Rossmoor says renters pay a separate amenities fee, listed at $145.58 a month for 2026. Leasing limits and minimum terms are set by each Mutual’s own policies, so check those before you buy to rent or before the board answers an owner.
City rules that apply inside the gate
Being a private, gated community does not take Rossmoor out of the Walnut Creek Municipal Code. Four city rules matter most to Mutual boards:
The details and code sections are in the Walnut Creek HOA Guide. One difference: the city’s hillside development standards expressly exclude Rossmoor.
What to do about it: Managing Outside Vendors for Your HOA and How to Hire a Contractor for Your Homeowners Association.
Golf carts, EV charging and solar
Rossmoor says golf carts are allowed on all roads inside the gate, with a 25 mph speed limit, and must be registered at the Public Safety office for a $10 sticker fee. The community has 30 shared Level 2 EV chargers, 10 each at the Gateway Clubhouse, the Event Center and the Fitness Center.
Charging and solar at an individual home are a Mutual matter. Each Mutual has its own solar energy system policy and EV charging station policy, and alteration requests go through Rossmoor’s alterations staff for 22 of the 23 Mutuals. State law limits how far any association can restrict solar and EV charging, so a director reviewing a request should read the Mutual’s policy alongside the statute.
What to do about it: see how architectural requests work.
New to a Mutual board?
A Rossmoor director works inside a structure with more layers than most associations, and the documents are long. If your Mutual board is deciding between managing itself and hiring help, start with Self-Managed vs. Professional HOA Management, or tell us about your community and we will send you options from affiliated management companies.
Compare HOA management optionsQuick answers
Questions Rossmoor owners and directors ask
Is Rossmoor one HOA?
No. It is 23 separate Mutuals, each with its own board and documents, plus the Golden Rain Foundation, which runs shared amenities and services.
Are Rossmoor’s Mutuals covered by the Davis-Stirling Act?
Rossmoor states that each Mutual is governed by the Davis-Stirling Act. See California HOA Law: The Davis-Stirling Act for what that means for meetings, elections and records.
Why is my coupon different from my neighbor’s across the road?
The Rossmoor Walnut Creek portion is the same for everyone, but the Mutual portion depends on your Mutual’s buildings, insurance share and reserves. In a co-op, property taxes are added too.
Who do I call about a leak in my wall?
Start with your Mutual’s management office. Interiors are generally the owner’s responsibility and building exteriors the Mutual’s, but the source of the leak decides who pays. See Who Pays for Repairs in an HOA?
Do city rules on leaf blowers and trees apply in Rossmoor?
Yes. They apply citywide and are covered in the Walnut Creek HOA Guide.
Can I rent out my Rossmoor home?
It depends on your Mutual’s policies. Rossmoor confirms that some owners rent and that renters pay an amenities fee, but leasing limits are set Mutual by Mutual.
Keep going
Where to go next on How2HOA
Sources for this guide
These sources open in a new tab.
Rossmoor Walnut Creek: How Rossmoor Works; ownership guide; Mutuals directory; frequently asked questions; 2024 fact sheet; about Rossmoor; The Waterford; transportation and other services; solar and EV charging policy index.
City of Walnut Creek and Con Fire: Chapter 5-9, gasoline-powered leaf blowers; Chapter 3-8, preservation of trees; noise; hillside performance standards; Con Fire weed abatement.
Professional management
Thinking about management help?
Tell us about your community and we will send you options from affiliated management companies.
Compare HOA management optionsGet the free board checklistsThis page is general educational information, not legal, financial or insurance advice. How2HOA is not affiliated with the associations or agencies named here. Ownership and maintenance vary parcel by parcel, so check your recorded maps and governing documents and talk with your association’s attorney or another qualified professional about your situation.