Diablo Permits

New building permits for Alamo, Lamorinda & the unincorporated county - mailed every Monday

What you get

Every week Contra Costa County issues a couple hundred building permits in the areas it handles: Alamo, Diablo, El Sobrante, Kensington, Discovery Bay and the rest of the unincorporated county, plus the cities of Lafayette, Orinda, Moraga, Clayton and Hercules. Over the past six months that has averaged about 244 permits a week.

Diablo Permits is a plain email that lists last week's permits, sorted by trade (roofing, solar, HVAC, electrical, plumbing, pools, landscaping, remodels, ADUs and new homes). For each one you get the date, the address, what the work is, the declared job value, and the contractor who pulled it along with the phone number on their state license. Permits with no contractor listed are marked, since those are usually homeowner-run jobs. There's also a CSV file if you want to keep your own records.

A sample week (Oct 12 - Oct 18, 2026)

That week had 266 permits worth about $12.1 million in declared work. Below are a few from each trade. The full issue has all of them. Download the full sample issue (PDF).

Issued	Trade	Address	Work	Value	Contractor
10/15	ADU/New build/Addition	1159 Sanders Dr, Moraga	64 sq ft addition of unconitioned space to conditioned space, for new bathroom. interior…	$835,000	None listed (owner-builder)
10/13	ADU/New build/Addition	506 Florence Dr, Lafayette	Construct a new 1,200-square-foot detached, one-story wood-framed accessory dwelling unit…	$550,000	None listed (owner-builder)
10/14	Remodel/General	3003 Oak Rd, Walnut Creek	New partial- floor tenant improvement for new outpatient facility on floor 02. scope…	$2,200,000	None listed (owner-builder)
10/12	Remodel/General	208 Erselia Trl, Alamo	Interior remodel with exterior changes per plans replace/install new windows install HVAC…	$400,000	None listed (owner-builder)
10/14	Roofing	217 N Broadway Ave, Bay Point	Existing res. fire reconstruction. reroof 20 squares wood shingles	$195,000	None listed (owner-builder)
10/14	Roofing	209 Britain Ct, Alamo	Re-Roof Landmark Solaris 57 SQUARES Comp/Off-Comp/On	$65,000	A Better Roofing Company (925) 370-1158
10/13	Solar	244 Columbia Ave, Kensington	Installation of 6.30 kW DC rooftop solar and 10 kWh grid tied Battery Backup System…	$106,500	Ally Electric (510) 559-7700
10/16	Solar	700 Silver Hills Dr, Byron	Roof mounting 48 solar modules with 3 Tesla Powerwalls	$71,264	Clover Solar (845) 596-4562
10/12	HVAC	23 Bolton Ct, Danville	(2) 3 ton condenser w/ coil changeouts on right side yard. (2)60k btus furnace changeouts…	$79,419	Service Champions (925) 444-4444
10/15	HVAC	1 Diablo Oaks Way, Lafayette	Two 4-tons heat pump condenser conversion from gas to electric in the backyard, and two…	$48,000	Service Champions (925) 444-4444
10/14	Electrical	418 N Buchanan Cir, Pacheco	Replace the existing 600 amp service with the same size service. No upgrade	$50,000	Trinity Electrical Inc (925) 788-7868
10/14	Electrical	132 Fernwood Dr, Moraga	Installing a 30 kWh Energy Storage System on the exterior wall. The system will be…	$34,200	Rising Sun Electrify Inc (510) 788-9092
10/12	Plumbing	14 Lance Ct, Moraga	1 bath Horizontal water supply system re-pipe up to 150'ft of new PEX pipe	$31,471	Rooter Hero (818) 923-3832
10/16	Plumbing	560 Merriewood Dr, Lafayette	Drain repipe- 2 bathrooms in crawl space	$24,772	Service Champions (925) 444-4444
10/16	Pool	1041 Upper Happy Valley Rd, Lafayette	New swimming pool, new pool plumbing, new pool equipment, new LV pool lights, new safety…	$110,900	Larson Pools Inc (925) 260-8422
10/13	Pool	5037 Blackhawk Dr, Danville	Pool remodel: adding spa, changing shape to rectangle, install automatic safety pool…	$100,000	Quality Pool And Construction Inc (925) 303-2911
10/13	Landscape/Hardscape	680 S Broadway Ave, Bay Point	Site Retaining Walls for Orbisonia project on east side of S Broadway Avenue; ref. BIG25-…	$200,000	Idaho Pacific West Builders Inc (208) 461-0022
10/12	Landscape/Hardscape	726 Miner Rd, Orinda	Replacement of wood deck of 198 sq.ft. and metal railings with solid roof overhead…	$125,000	Envision Landscape Studio Inc (925) 357-5887

From the County's public weekly permit reports. Contractor phone numbers come from the California Contractors State License Board. Values are what the applicant declared. Homeowner names are not included.

About

I'm Iz Shalom, and I live in Alamo. Every week the County posts its permit reports as PDFs that nobody has time to read. I started Diablo Permits to clean them up into one short list that a local contractor can read with their Monday coffee: who's building what, where, and roughly for how much.

It's a small, local operation. If something in the list looks wrong, or there's an area or trade you'd like covered, just reply to any issue and I'll read it.

- Iz

Questions

Where does the information come from?
The County's public "Building Permits Issued" reports. Contractor phone numbers come from the state license board's public records.

Do you sell homeowner contact information?
No. The list shows the job address and the contractor of record, nothing more.

Are Walnut Creek, Danville and San Ramon included?
Not yet. Those cities issue their own permits. The unincorporated parts near them, such as Alamo, Diablo and the county areas around Walnut Creek and Danville, are included.

How do I cancel?
Reply "cancel" to any issue, or use the link at the bottom of the email.

Diablo Permits · Alamo, California · [email protected] · diablopermits.com
Not affiliated with Contra Costa County or the Contractors State License Board. Information is from public records and provided as is. Please verify before relying on it.