Water Credits on the Monterey Peninsula: Cal-Am, MPWMD & Remodels
Water credits and water rules on the Monterey Peninsula: what buyers, sellers, and remodelers need to know
On the Monterey Peninsula, water is regulated by the Monterey Peninsula Water Management District (MPWMD). It affects what you can add to a home, what has to be fixed when a home sells, and what a remodel can include. Here is how it works, from MPWMD’s own pages.
The short version: MPWMD documents water credits when efficient fixtures replace older ones or fixtures are permanently removed, including when a building is demolished, and those credits last ten years. A Water Permit from MPWMD is needed before a building permit when a project adds water use or changes a meter, and is normally processed within a week. Every change of ownership triggers mandatory retrofits under District Rule 141: efficient toilets, showerheads of 2.0 gallons per minute or less, bathroom faucets of 1.2, kitchen faucets of 1.8, and rain sensors on most automatic irrigation.
Water credit life
Credits are time-limited.
Water Permit
Normal processing without deed restrictions.
Retrofit on sale
Every change of ownership.
Buyer extension
To finish retrofits after purchase.
How water credits work
From MPWMD’s Water Credits page and Rule 25.5.
How you earn them
Credits are documented when water-efficient appliances replace older ones, or when water fixtures are permanently removed, including when a building is demolished.
Commercial credits
Non-residential water credit is documented on a change in use or demolition.
They expire
Water use credits are time-limited to ten years.
Why it matters
Credits from fixtures you remove can help offset fixtures you add later, for example in a remodel. Ask MPWMD what is on record for a property before you plan around it.
When you need an MPWMD Water Permit
From MPWMD’s Water Permits page.
What it is
A Water Permit lets an applicant get a building permit and set a water meter, or add water use on an existing connection. It is also needed to add meters or change a meter’s size.
Timing
Normally processed within a week if no deed restriction is needed. Deed restrictions take 1 to 3 days to prepare, review, and record.
How to apply
All applications are submitted by email to [email protected], and plans can be sent as links. The permit office is open 9 a.m. to 4 p.m. on weekdays, (831) 658-5601.
Conditions
Meeting MPWMD’s water efficiency rules (Regulations XIV and XV) is a condition of approval.
Common remodel triggers
MPWMD has separate guidance pages for accessory dwelling units and for adding a second bathroom. Check them before designing either.
Commercial changes
A change of tenant or use in a commercial space can need a Water Permit even when the city or county does not see a change of use.
Mandatory retrofits at change of ownership
District Rule 141 applies to every transfer of ownership. From MPWMD’s Selling/Buying a Property page.
What must be installed
High efficiency or ultra high efficiency toilets.
Showerheads, rain bars, and body sprays of 2.0 gallons per minute or less.
Bathroom faucets of 1.2 gpm or less, and kitchen, utility, and bar sink faucets of 1.8 gpm or less (at 60 psi).
Rain sensors on automatic irrigation, except weather-based systems.
Seller first, unless agreed
The owner is responsible, so the seller normally does the work unless seller and buyer agree the buyer will. After title transfers, it becomes the buyer’s job.
A buyer can request up to six months from the purchase date, for example to remodel and choose fixtures, and can ask for a second extension.
Certification and inspection
Once compliant, send the Water Efficiency Standards Certification Form to [email protected]. A property can self-certify if MPWMD has a current passing inspection and nothing has changed.
Otherwise an inspector visits, Tuesday through Thursday, checks every indoor fixture plus any pool, and the visit usually takes 10 to 15 minutes.
Properties with private wells have extra requirements under MPWMD Regulation V. Rebates are not available for the mandatory fixtures.
Water rules for landscaping
MPWMD Rule 142.1, its water efficient landscape rule.
New landscapes
Applies to new landscapes over 500 square feet tied to a grading permit, building permit, or design approval, including demolition and rebuild projects.
Replaced landscapes
Applies to refurbished landscapes over 2,500 square feet that need a building or landscape permit, plan check, or design review.
What it checks
Plant selection, landscape design, and the irrigation system.
Pebble Beach, Carmel, and Carmel-by-the-Sea
The same district rules apply across these markets, with a few local twists.
Pebble Beach
MPWMD has a special water entitlement for Pebble Beach Company under Rule 23.5. Inside the Del Monte Forest, private wells are prohibited unless approved by Pebble Beach Company and the agencies. See building or remodeling in Pebble Beach.
Other entitlements
MPWMD also lists special entitlements for the Malpaso Water District (Rule 23.7) and Sand City (Rule 23.6).
Carmel-by-the-Sea
Remodels there also go through city permits, historic review, and tree rules. See building permits and tree permits.
Before you buy
Ask the seller about past MPWMD permits, deed restrictions, inspections, and credits on record. They shape what you can add later.
Buying or selling on the Peninsula?
I’ll make sure the water retrofit, permit history, and any credits are sorted out early, so they don’t surprise anyone at closing.
I represented the buyers of San Antonio 2 SW of 10th ($7M) and Lincoln 3 NE of 5th ($4.4M), and both sides of Torres 2 SE of 10th ($5.54M). I represented the buyer of 1424 Oleada Road in Pebble Beach in 2025.
Carmel homesCarmel-by-the-Sea homesPebble Beach homes
Ask about a specific home
Call or text 831-747-0310, or book a 30-minute call.
Before you rely on this
- From MPWMD’s Water Credits, Water Permits, Selling/Buying a Property, and Water Entitlements pages, saved Oct 27, 2026 (mpwmd.net did not load on Oct 29). Confirm with MPWMD before relying on them.
- This page does not cover water supply limits, the Cal-Am system, or meter availability.
- General information, not legal advice.
Water rules: quick questions
What is a water credit on the Monterey Peninsula?
A credit MPWMD documents when efficient appliances replace older ones or fixtures are permanently removed, including by demolition. Credits are time-limited to ten years.
Do I need an MPWMD permit to remodel?
You need an MPWMD Water Permit to get a building permit if the project adds water use, sets a new meter, or changes meter size. It is normally processed within a week without deed restrictions.
What water fixtures are required when selling a home in Carmel or Pebble Beach?
Under MPWMD Rule 141: high efficiency toilets, showerheads of 2.0 gpm or less, bathroom faucets of 1.2 gpm, kitchen and bar faucets of 1.8 gpm, and rain sensors on most automatic irrigation.
Who pays for the water retrofits when a home sells?
The owner is responsible, so normally the seller, unless the buyer agrees to do it. A buyer can get up to six months after purchase to finish.
Do I need an MPWMD inspection to sell?
Maybe. A property can self-certify if MPWMD has a current passing inspection and no fixtures have changed. Otherwise an inspector visits, Tuesday through Thursday.
Can I drill a well in Pebble Beach?
Private wells in the Del Monte Forest are prohibited unless approved by Pebble Beach Company and the relevant agencies, per the ARB standards.
Updated October 2026 · Facts checked Oct 29, 2026 against MPWMD’s own pages
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