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Discovery Bay, in short
Who runs local services in Discovery Bay?
Discovery Bay is an unincorporated community of Contra Costa County. The Town of Discovery Bay, a community services district the voters authorized in 1998, runs the water, sewer, parks and recreation. The County handles permits and code enforcement, Con Fire (the Contra Costa County Fire Protection District) covers fire, and Reclamation District 800 handles the levees and drainage.
The story of Discovery Bay
Discovery Bay, an unincorporated community of Contra Costa County whose community services district calls itself the Town of Discovery Bay.
According to the Historical Society’s 2001 reprint, the idea for Discovery Bay began in 1964, the first bay was dug in 1968 and the lots opened for sale in October 1970. The Town says it was established in the early 1970s as a mostly weekend and summer resort community and has become a year-round home.
According to the Historical Society’s 2001 reprint, the area between Byron and Old River was known as the Byron Tract and was planted with potatoes, corn, onions, beans, sugar beets and barley.
The Society says the idea for Discovery Bay began in 1964: a recreational community of bays that would be dug from the farmland and filled with water by breaking the levee of Italian Slough. Its original name was Riverlake.
Digging began in 1968, the Society says, when large excavation equipment arrived to dig Lido Bay, which it calls the development’s first bay.
Lots opened for sale in October 1970, with a colorful tent as the sales office, the Society says, and commercials and a paddle boat called the Old Savannah promoted the project.
By the Society’s account there were about 100 homes in 1975.
On July 4, 1981, the Society says, the Discovery Bay Marina had its grand opening.
By 1988, it says, two thousand acres had been developed with eighteen deep-water bays, a marina, Willow Lake, a swim and racket club, a shopping center and an 18-hole golf course.
In 1998, the Town says, the voters authorized the community services district that is the Town of Discovery Bay.
The Town bought the former Discovery Bay Athletic Club’s 7.25 acres in 2013 and reopened the site as its Community Center on January 2, 2014.
Fire safety
Weeds, brush and grass
Con Fire’s weed-abatement page says every parcel owner, “including residential, commercial, and vacant land”, is responsible for the hazardous vegetation on the parcel, and it lists Discovery Bay among the areas it serves. The District sets the date each year, so check its list. For parcels of five acres or less, according to Con Fire’s standards sheet, “Maintain ALL weeds at a height of no more than 3 inches.”
District pages read Nov 6 2026; the weed date is a yearly list; the standards sheet is read again before every use
Tree litter
According to the District’s fuel mitigation ordinance, “Tree litter (eucalyptus leaves and bark, coniferous needles, leaves, fallen branches, etc.) shall be removed from the base of trees, tree stems, and limbs within 6 feet of the ground and maintained throughout the fire season.”
Ordinance page 6 read by eye from a picture, Nov 6 2026
Need a hand with this? Gutter guards
Discovery Bay this month
Storm season: the County’s Sandbags page says residents of unincorporated Contra Costa County can get free sandbags and sand at the County’s sandbag stations; bring a shovel. The page lists no station in Discovery Bay.
The Discovery Bay blog starts when there is enough local news to keep it current.
Culture and history
Lighted Holiday Street Parade
The Discovery Bay Community Foundation’s home page says “The 24th Annual Discovery Bay Lighted Holiday Street Parade is coming on Saturday, December 5, 2026”; the parade’s theme is America’s 250th Birthday.
Foundation home page read Nov 6 2026; the date and year are the page’s own; refresh after December 5 2026
Parks, the Community Garden and the Community Center
The Town’s Facilities & Rentals page lists the Community Center, the Community Garden and the Dog Park. Its park-amenities table covers six places: the Community Center, Cornell Park, Ravenswood Park, Regatta Park, Roberta Fuss and Slifer Park.
Town pages read Nov 6 2026; the amenities table is an image, read by eye
See 1 more
How Delta farmland became Discovery Bay
From a tract planted with potatoes, corn and onions to a recreational community of bays: the Historical Society’s 2001 reprint tells how. More in The story of Discovery Bay, below.
Society page, a 2001 reprint, read Nov 6 2026
Community
Discovery Bay Community Foundation
The Foundation says it was founded in 2014 by several residents and describes itself as a tax-exempt public charity dedicated to improving the quality of life in Discovery Bay.
Foundation page, undated, read Nov 6 2026; the founding year is the Foundation’s own account
Discovery Bay Lions Club
The Lions Club says that since 1983 it has raised over a million dollars for the community, through boat shows, concerts, golf tournaments, poker runs, crab feeds, car shows and more.
Club page read Nov 6 2026 (footer 2023); the money figure is the club’s own claim
See 2 more
The Town’s Municipal Advisory Council
The Town’s page says Municipal Advisory Councils are appointed by the County supervisors to provide input on unincorporated communities, and that the Town’s council gives updates at the Town board’s first meeting each month.
Town pages, undated, read Nov 6 2026
East Contra Costa Historical Society
The Society says it was organized in April 1970 by a group of citizens from all over the eastern end of Contra Costa County interested in local history, and it covers Discovery Bay among six East County communities on its site.
Society pages read Nov 6 2026
City rules and regulations
A re-roof: a permit and two inspections
The County’s Residential Re-Roof Requirements document (file name “Residential Re-Roofs_Rev_2023_09”, read in Chrome Nov 6 2026) says a permit is required before a re-roof begins. It says: “All re-roofs require the following two inspections:” an in-progress inspection and a final inspection. Applications go in online on the County’s ePermits Center, and you first need to register for an account; contractors must connect a CSLB license to their online account. For the fee, see the County’s page for permit fees: Contra Costa County: Permit Status, Fees, and Payment Information.
County document read by eye in Chrome Nov 6 2026; fee page read in Chrome Nov 6 2026; re-read before use
Permits come from the County, not the Town
The Town’s code enforcement page says: “The Code Enforcement Program enforces the building and zoning ordinances for the unincorporated areas of Contra Costa County.” The Town’s own list of 28 ordinances covers water and sewer rules, parks, drought rules and similar subjects, and none is about fire, buildings, trees or roofs.
Town pages, undated, read Nov 6 2026; the ordinance list was read as titles
See 2 more
Trees the Town suggests for Discovery Bay’s soil
The Town’s suggested plant list says it “has been assembled with selections that have a proven record to survive Discovery Bay’s difficult soil conditions.” Its tree headings include Chinese pistache, crape myrtle, camphor, European olive and California pepper tree. The University of California’s pest-management site calls Chinese pistache and crape myrtle deciduous, and camphor and California pepper tree evergreen; it says camphor trees “drop leaves heavily in the spring and later drop fruit, flowers, and twigs” and pepper trees “tend to have aggressive roots and drop tree litter.”
Town page and list read Nov 6 2026; UC pages undated, read Nov 6 2026
Building near a levee or slope
The Town’s page on Reclamation District 800 lists among the District’s duties “Reviewing residential/commercial construction on and around levees and slopes”. It gives no permit or fee detail.
Town page, undated, read Nov 6 2026
Need a hand with this? Roofing
Storms, flood and drainage
Free sandbags from the County
The County’s Sandbags page asks “Do you live in unincorporated Contra Costa County?” and says that if you are concerned about flooding at your home or business when the rainy season hits, you can visit one of the sandbag stations located throughout the county: “you’ll need to bring a shovel, but bags and sand are available for free.” The page lists six stations around the county, and the Town’s own sandbags page sends residents to the County’s.
Page read in Chrome Nov 6 2026; the page is undated
Levees and drainage
Reclamation District 800’s assessment page describes its drainage service as “Removal of rainfall runoff, irrigation tailwater, and levee seepage to prevent nuisance flooding and ponding of water.” Its FAQ says it “operates and maintains pumps and canals to drain land and to circulate water around the bays and lakes”.
District pages, undated, read Nov 6 2026; the FAQ page was read by eye from a picture
Need a hand with this? Gutter cleaning
Programs, loans and insurance
Free on-call pickups from the garbage hauler
Mt. Diablo Resource Recovery’s Discovery Bay page says residents “may request up to two (2) per calendar year at no additional cost”: on-call pickups of up to twelve 32-gallon bags of household garbage or yard waste, with branches tied in a bundle. It also lists one bulky item pickup a year. These are services of the hauler.
Hauler page, undated, read Nov 6 2026
County-wide BayREN EASE Home: weatherization for income-qualified homes
BayREN’s EASE Home program says “BayREN covers 80% of the cost for essential weatherization upgrades, including insulation and duct sealing.” To qualify you must “Live in a single-family home (four or fewer units) built before 2010”, be a PG&E customer and have a household income at or under 120% of the area median income; the page lists Contra Costa among its counties and names no town, and PG&E’s service-area page lists Discovery Bay.
Page read Nov 6 2026
See 6 more
County-wide Fire district hazard removal for low-income owners
The Contra Costa County Fire Protection District’s Measure X wildfire page lists a program that “assists eligible low-income property owners with exterior hazard removal, including overgrown or dead vegetation, weeds, combustible debris, and tree litter.” It says it “Provides up to $1,500 in hazard control or weed abatement work”. The page calls the initiative countywide and names no town; the District’s weed-abatement page lists Discovery Bay among the areas it serves.
District page read Nov 6 2026
County-wide Check back Fire district home hardening outreach: coming soon
The District’s Measure X page lists a Home Hardening Outreach Program that “will provide education and resources to help homeowners make their homes more resistant to wildfire.” Its status on the page is “Coming soon – check back for details on how to apply.”
District page read Nov 6 2026
County-wide Check back Earthquake Brace + Bolt: check back
The Earthquake Brace + Bolt program, run by the California Residential Mitigation Program, lists “Discovery Bay 94505, 94514” on its Northern California ZIP list, and its eligibility is based on ZIP code only. The program says a retrofit “is only done on wood-framed, pre-1980 homes with a raised foundation” and that “EBB program registration is open for a limited time each year”, so check back.
ZIP list read Nov 6 2026; the program page was not re-read, so the registration state is not known
County-wide Check back County weatherization: check back
The County’s Weatherization page calls it “a Federal and State-funded program whose purpose is to assist low and/or fixed income people in making their homes more energy-efficient”, available whether you own or rent. The page names no town and says nothing on whether it is open, so check back before you count on it.
County page read in Chrome Nov 6 2026
County-wide Check back County Neighborhood Preservation Program: check back
The County’s Neighborhood Preservation Program page says the program “currently is not taking new applications” and asks you to “continue to check back for more information.” It describes the program as financial assistance for low-income homeowners for home rehabilitation projects, and names no town.
County page read in Chrome Nov 6 2026
County-wide Check back Diablo Firesafe Council cost-share: check back
The Diablo Firesafe Council’s cost-share program is for Alameda County or Contra Costa County property owners with vegetation management projects, in areas the Council calls Priority Hazard Zones; we have not found whether Discovery Bay is in one. Its page says “No new applications can be submitted at this time” and that the Council will reopen the form “when new funding is available”, so check back.
Council page read Nov 6 2026; the closed notice is dated May 2025
Who serves your home in Discovery Bay
- Fire: The Contra Costa County Fire Protection District, known as Con Fire. Its Fire Prevention Bureau page lists Discovery Bay among the places its services are provided to, and its history page says the former East Contra Costa Fire Protection District, which served Discovery Bay, was annexed into Con Fire on July 1, 2022.
- Water: The Town of Discovery Bay’s community services district, which says it provides the water through a series of six wells that draw from an aquifer about 300 feet below the surface.
- Sewer: The Town’s district, which says it operates two wastewater treatment plants and 60 miles of sewer mains.
- Parks, landscaping and recreation: The Town’s district, which also provides parks, landscaping and recreation services.
- Garbage and recycling: Mt. Diablo Resource Recovery, the County’s franchise hauler: the County’s franchise page lists Discovery Bay among the communities served, and the hauler’s own page says single-family residents get weekly collection of garbage and organics and bi-weekly pickup of recycling.
- Electricity and gas: PG&E, whose service-area page lists Discovery Bay in the Contra Costa list of its electric territory and again in its gas territory.
- Levees and drainage: Reclamation District 800, which says it provides “flood protection, water circulation, drainage, and bay access services” in and around Discovery Bay. It is a separate district from the Town.
- Permits and code enforcement: Contra Costa County. The Town’s page on County resources lists the services of the County’s Brentwood office, among them construction inspections, miscellaneous permits, plan review and planning services.
Useful links: Town of Discovery Bay · Town of Discovery Bay: Reclamation District 800 · Contra Costa County Fire Protection District: Weed Abatement · Contra Costa County Fire Protection District: Fire Prevention Bureau · Contra Costa County: Sandbags · Contra Costa County: Residential Re-Roof Requirements · Contra Costa County: Permit Status, Fees, and Payment Information · Contra Costa County ePermits Center · Reclamation District 800 · Mt. Diablo Resource Recovery: Discovery Bay · PG&E: service area · Discovery Bay Community Foundation · Discovery Bay Lions Club · East Contra Costa Historical Society: Discovery Bay · BayREN: EASE Home · Earthquake Brace + Bolt · Contra Costa County: Weatherization · Contra Costa County: Neighborhood Preservation Program · Diablo Firesafe Council
The homes of Discovery Bay
The Census Bureau’s 2020-2024 survey estimates about 6,050 homes in Discovery Bay, give or take about 390. About 91 percent are one-unit detached houses and about 90 percent of the occupied homes are lived in by their owners; the median home was built in 1995, give or take 2 years, and about 47 percent were built from 1980 through 1999. The percentages are our own calculations from the survey’s tables, rounded, with margins of about 8, 3 and 5 points in that order.
Along the bays
How the homes sit
The County’s draft community profile says Discovery Bay is “primarily comprised of residential land uses along the bays, with pockets of commercial and office spaces that fulfill some daily service needs.”
1990s
Discovery Bay West
The profile says the County approved “Discovery Bay West,” a 2,000-home project built around a new elementary school and four artificial lakes, and that newer subdivisions have further expanded the community.
Today
Homeowner associations
The Town lists nine homeowner associations in Discovery Bay and says it “is not affiliated with any HOA”.
Older roofs and gutters need a different hand: Gutter Repair · Roof Repair · Gutter Installation
The story of Discovery Bay
History and character
According to the Historical Society’s 2001 reprint, the area between Byron and Old River was known as the Byron Tract and was planted with potatoes, corn, onions, beans, sugar beets and barley.
The Society says the idea for Discovery Bay began in 1964: a recreational community of bays that would be dug from the farmland and filled with water by breaking the levee of Italian Slough. Its original name was Riverlake.
Digging began in 1968, the Society says, when large excavation equipment arrived to dig Lido Bay, which it calls the development’s first bay.
Lots opened for sale in October 1970, with a colorful tent as the sales office, the Society says, and commercials and a paddle boat called the Old Savannah promoted the project.
By the Society’s account there were about 100 homes in 1975.
On July 4, 1981, the Society says, the Discovery Bay Marina had its grand opening.
By 1988, it says, two thousand acres had been developed with eighteen deep-water bays, a marina, Willow Lake, a swim and racket club, a shopping center and an 18-hole golf course.
In 1998, the Town says, the voters authorized the community services district that is the Town of Discovery Bay.
The Town bought the former Discovery Bay Athletic Club’s 7.25 acres in 2013 and reopened the site as its Community Center on January 2, 2014.
Discovery Bay, roof and gutters
Reclamation District 800, which protects the area in and around Discovery Bay, says it is one of 60 major islands or tracts that make up the Sacramento/San Joaquin Delta, and that “The District itself is 6,933 acres protected by 19.2 miles of levees.”
Yearly rain averages about 12.5 inches, the mean of NOAA’s 1991-2020 normals at the Tracy Pumping Plant (12.37 inches) and the Antioch Pumping Plant #3 (12.60 inches), the two stations nearest the Census Bureau’s center point for Discovery Bay, about 7.7 and 9.9 miles away, our own calculation. About 82 to 85 percent of the year’s rain falls from November through March, and June through September together bring under a quarter of an inch, our own calculation from the monthly normals.
We have been working on Bay Area roofs and gutters since 2002. If yours hasn’t had a look in a while, we’d be glad to come by.
Landmarks and parks
Discovery Bay Community Center
The Town’s Community Center, on the site of the former athletic club; the Town’s park-amenities table lists a swimming pool, tennis and pickleball there.
Cornell Park
The Town’s park-amenities table gives it the longest list of the six places, among them basketball, bocce ball, horseshoes, pickleball, soccer, softball and tennis.
How we can help in Discovery Bay
Why Sunshine Gutters and Roofing
- Family-owned since 2002, trusted by thousands of returning Bay Area homeowners
- Licensed (CSLB #1053780), bonded, with $2 million in general liability coverage
- Our own crew, never subcontractors
- We keep track of local regulations, fire safety rules and insurance programs
- We show you what we found, with photos, so you decide what happens next
The year in Discovery Bay
| January | The wettest month at both stations: 2.51 inches at Tracy and 2.68 at Antioch |
|---|---|
| March | Down to 1.60 and 1.95 inches, the last month above an inch and a half at both stations |
| July | Almost no rain in the normals: 0.00 inches at both the Tracy and Antioch stations |
| October | The first real rain of the season: 0.67 inches at Tracy and 0.42 at Antioch, against 0.08 and 0.06 in September (NOAA’s 1991-2020 monthly normals) |
| November | The monthly normal climbs to 1.32 inches at Tracy and 1.18 at Antioch |
| December | The Lighted Holiday Street Parade, announced for Saturday, December 5, 2026 |
Discovery Bay questions
What Discovery Bay homeowners ask us
Do I need a permit to replace my roof in Discovery Bay?
To replace it, yes. The County’s Residential Re-Roof Requirements document (Rev. 2023-09, read Nov 6 2026) says a permit is required before a re-roof begins, with two inspections, an in-progress inspection and a final inspection, and applications go in online on the County’s ePermits Center. If you wish, we can also pull the permit for you, as most of our customers ask us to.
When is the weed-abatement deadline at my Discovery Bay address?
The District sets the date each year and lists it on its weed-abatement page, which names Discovery Bay among the areas served, so check the list for this year’s date. Its FAQ adds that if the vegetation is cut before the deadline and regrows, the parcel can still be in violation of the Minimum Weed Abatement Standards.
Where can I get sandbags in Discovery Bay?
From the County, and it’s free. Its Sandbags page (read in Chrome Nov 6 2026) says residents of unincorporated Contra Costa County can visit a sandbag station, where “bags and sand are available for free”; bring a shovel. The page lists six stations and none is in Discovery Bay. The nearest listed are Byron Airport, 6901 Falcon Way, Byron (“Open 24 hours, 7 days a week”), and the County Agriculture station in Knightsen. The Town’s own sandbags page sends residents to the County’s.
What our customers say
Get a free estimate
We usually respond promptly within the day. Phone first for emergencies: (510) 525-0880.
Where we work
Discovery Bay neighbourhoods we serve


The original part of town
The Town says about 60 percent of Discovery Bay’s homes are in the original part of town.
Discovery Bay West
The Town says the remaining homes are in Discovery Bay West; the County uses the name too.
Ravenswood
The Town’s landscape page names the Ravenswood Housing Development area, off Newport Drive and Slifer Drive.
The Lakes
The Town’s landscape page names the Lakes Home Development on Bixler Road, and The Lakes Homeowners Association is on the Town’s list.
Also serving nearby: Byron









