Local zoning · Santa Cruz County

Santa Cruz County — Overlay Districts

Overlay Districts under the Santa Cruz County local zoning and planning code, with the controlling citations.

Last reviewed: July 6, 2026

Overview

In unincorporated areas of Santa Cruz County, “overlay” zoning is implemented as Combining Districts that sit on top of a base zone and add special rules, incentives, or limitations. The County’s Combining Districts are established in Title 13 (Zoning), Part IV, and shown on the official zoning map maintained by the County’s GIS. Always check both the base zone and any applied Combining Districts before planning development or use changes in unincorporated areas. See the County’s zoning map and Combining Districts list in § 13.10.180 and § 13.10.400.

In unincorporated Santa Cruz County, an overlay (Combining District) changes or adds to what your base zoning allows; it never replaces the base zone standards (§ 13.10.400).

Related topics you’ll use while working with overlays include the County’s zoning tables and development standards, design review, parking, historic preservation, nonconforming uses, and variances and exceptions. For general context, start at the planning overview and land use.

How to read the County’s overlay system

Combining Districts are coded as a dash plus letters after the base zone (e.g., R-1-6-PP). The full list appears in § 13.10.400.
The zoning map for unincorporated areas is part of the code (§ 13.10.180). Always verify a parcel’s overlay mapping in the County’s GIS.
Where a Combining District includes specific use or dimensional standards, those provisions control over conflicting base-zone standards for that topic. Examples below cite each controlling §.

Quick reference: overlay highlights

District	What it does	Where it applies (designation)	Key standard or trigger	Code Reference
D	Flags potential park sites; may trigger Parks Commission “park site review” on larger permits	Parcels designated for future park/recreation in the General Plan	Level V+ projects and certain permits may be sent for park site review; recommendations can shape project design	§ 13.10.416–418
GH	Requires geologic hazard compliance	Parcels mapped with hazards (bluffs, faults, liquefaction, landslides, flood/tsunami)	Projects must meet Chapter 16.10 (Geologic Hazards)	§ 13.10.421–423
PRH	Allows permanent room housing in qualified structures	Parcels (various base zones) with buildings originally for visitor accommodations/care	May keep existing PRH units by right; add PRH units within density caps	§ 13.10.425–427
H	Prioritizes 100% affordable projects on designated sites	Parcels mapped as “assisted housing sites”	Priority processing; if not 100% affordable, 35% affordable required	§ 13.10.431–433
SBE	Special neighborhood standards (Seascape Beach Estates)	Seascape Beach Estates, Aptos (mapped tracts)	FAR 0.60; defined setbacks; special height measurement from curb	§ 13.10.434–436
AIA	Airport safety/noise compatibility	Within 2 miles of Watsonville Municipal Airport	Must meet Chapter 13.12 safety zone limits	§ 13.10.437–439; § 13.12.040
I	Signals Board’s intent not to rezone	Parcels with a recorded “Statement of Intention”	No added restrictions; advisory only	§ 13.10.441–443
PP	Pleasure Point Community Design	R-1, RM, and residential PR parcels in Pleasure Point neighborhood	Second-story step-backs, massing limits; special ADU height over garages	§ 13.10.444–446; § 13.10.681(D)
L	Historic Landmark	Individually designated historic resources	Work subject to Historic Resources regs	§ 13.10.451–453
MH	Mobile Home Park	Existing or approved mobile home park sites	Maintain park use; development to MH standards	§ 13.10.456–458
O	Open Space Easement	Parcels with recorded open space easement	No permit may authorize development violating the easement	§ 13.10.461–463
P	Agricultural Preserve/Farmland Security (Williamson Act)	Parcels under Williamson Act contract	CA zoning standards apply; contract governs uses	§ 13.10.471–473
R	Regional Housing Need	Sites set to 20 du/ac with PUD at rezoning	Must achieve 20 du/ac; RM standards apply with alternatives	§ 13.10.475–477
SP	Salamander Protection	Long-toed salamander habitat	Must meet sensitive habitat standards	§ 13.10.481–483
W	Watsonville Utility Prohibition	West of Hwy 1 near Watsonville (coastal)	1-foot-wide “no utilities” strip; limited exceptions	§ 13.10.491–493
Min	Ministerial (by-right) Housing	Sites mapped as “-Min”	Ministerial review if ≥20% lower-income units; ≥20 du/ac	§ 13.10.494–497

District-by-district details (unincorporated areas)

D — Designated Park Site (-D)

Purpose: Flag parcels identified for future park or recreation facilities in the General Plan.
Where it applies: Parcels designated for neighborhood, community, or regional parks; possibly other future recreational uses at Board discretion (§ 13.10.417).
Key standards: Certain larger or discretionary projects (e.g., new dwellings in the Coastal Zone, land divisions, Level V+ permits) may be sent to the Parks & Recreation Commission for “park site review,” and the Commission’s recommendations can shape or condition your project (§ 13.10.418).
Practical tip: Factor park site review into timeline for qualifying projects and coordinate early with design review.

GH — Geologic Hazards (-GH)

Purpose: Identify sites with hazards (coastal bluffs, faults, liquefaction, landslides, flood/tsunami areas) and require compliance with Chapter 16.10 (Geologic Hazards).
Where it applies: Parcels mapped with one or more geologic hazards; typically applied to the full parcel to provide early notice (§ 13.10.422).
Key standards: Projects must meet Chapter 16.10; expect geologic reports and siting constraints (§ 13.10.423).
Practical tip: Early hazard screening can avoid redesigns; coordinate with development standards.

PRH — Permanent Room Housing (-PRH)

Purpose: Allow eligible hotel/motel, nursing home, or similar buildings to be used or converted for multifamily “permanent room housing.”
Where it applies: RA, RR, R-1, RM, VA, PA, C-1, C-2, C-4, CT, and SU, if the building was originally established as Type A visitor accommodations or care facility. Inside the Coastal Zone, VA/CT parcels are ineligible (§ 13.10.426).
Key standards: May maintain existing PRH units by right; may add units if base-zone standards are met and density does not exceed rural matrix or General Plan density for the parcel (§ 13.10.427). Exceptions may be granted if they better achieve PRH purposes (§ 13.10.429).
Practical tip: Density control comes from the General Plan or rural density matrix (not the old hotel key count). Align with nonconforming use status if applicable.

H — Assisted Housing (-H)

Purpose: Increase affordable housing on designated “assisted housing sites.”
Where it applies: Parcels designated in the LCP for assisted housing (§ 13.10.432).
Key standards: 100% affordable projects receive priority processing; if not 100% affordable, at least 35% of units must be affordable (§ 13.10.433).
Practical tip: Coordinate affordability program compliance with any design review steps.

SBE — Seascape Beach Estates (-SBE)

Purpose: Preserve neighborhood scale and public viewshed in Seascape Beach Estates.
Where it applies: Specific tracts west of Via Palo Alto in Aptos (§ 13.10.435).
Key standards: FAR 0.60; front setback 20 ft; side setbacks = 10% of lot width (min 5 ft, max 8 ft; corner lots 8 ft); rear setbacks per mapped figure; project height measured from curb; chimney height limits (§ 13.10.436).
Practical tip: ADUs in SBE must meet SBE-specific setbacks and height exceptions in the ADU rules (§ 13.10.681(D)).

AIA — Airport Influence Area (-AIA)

Purpose: Protect safety and reduce noise exposure near Watsonville Municipal Airport.
Where it applies: Within 2 miles of the airport boundary (§ 13.10.438).
Key standards: Development must meet Chapter 13.12 safety zone limits; some zones prohibit structures entirely (e.g., Runway Protection Zone), with max densities/intensities defined in § 13.12.040.
Practical tip: Expect overlay controls to cap people-per-acre and restrict certain uses beyond the base zone.

I — Statement of Intention (-I)

Purpose: Record that the Board intends not to rezone the parcel in the predictable future (Revenue & Taxation Code § 1630).
Where it applies: Parcels granted a Statement of Intention (§ 13.10.442).
Key standards: No additional restrictions; base zoning applies (§ 13.10.443).

PP — Pleasure Point Community Design (-PP)

Purpose: Reduce visual/shading impacts; encourage porches and street orientation; reduce auto-dominant facades.
Where it applies: R-1 and RM (and residential development on PR) in Pleasure Point (bounded by Portola Dr., 41st Ave., Monterey Bay, and Corcoran Lagoon) (§ 13.10.445).
Key standards: Additional residential massing/second-story step-backs and incentives apply in addition to § 13.10.323(B); ADU height over garages in PP has a special cap in § 13.10.681(D).

L — Historic Landmark (-L)

Purpose: Preserve designated historic resources; regulate alterations, demolition, excavation per Chapter 16.42.
Where it applies: Parcels designated by the Board as historic resources (§ 13.10.452).
Key standards: Any work affecting the resource must comply with Chapter 16.42 (§ 13.10.453). Coordinate early with historic preservation.

MH — Mobile Home Park (-MH)

Purpose: Keep legally established mobile home parks in mobile home park use and regulate their development.
Where it applies: Properties with approved or legally established parks (§ 13.10.457).
Key standards: Maintain park use and meet County and State requirements; new parks must satisfy § 13.10.684; density not to exceed RM-3 equivalent; perimeter and internal yard/parking standards apply (§ 13.10.458).

O — Open Space Easement (-O)

Purpose: Identify land under open space easement contracts (Gov. Code § 51050).
Where it applies: Parcels with a recorded open space easement (§ 13.10.462).
Key standards: No permit may authorize work that violates the easement (§ 13.10.463).

P — Agricultural Preserve and Farmland Security (-P)

Purpose: Implement Williamson Act contracts; restrict to agricultural/open space/compatible uses.
Where it applies: Parcels under Williamson Act Article 3 or 7 contracts; the -P remains until the contract ends (§ 13.10.472).
Key standards: CA zone standards govern; uses must be consistent with the contract; certain non-CA uses require CUP and special findings (§ 13.10.473; § 13.10.314).

R — Regional Housing Need (-R)

Purpose: Increase housing by designating sites at 20 units/acre.
Where it applies: Sites rezoned with a concurrent PUD; in the Coastal Zone, limited to RM-2, C-1, C-2, PA, PF (§ 13.10.476–476(D)).
Key standards: 20 du/ac minimum; RM 1.5–4.9 site standards apply, with alternative standards available (parking ratios, 35-ft/3-story height, etc.) in § 13.10.477(A)(2).

SP — Salamander Protection (-SP)

Purpose: Protect the Santa Cruz Long-Toed Salamander habitats.
Where it applies: Properties in breeding ponds/terrestrial habitats (§ 13.10.482).
Key standards: Must comply with Sensitive Habitat Protection Ordinance standards (Chapter 16.32; § 16.32.090(C)(2)(a) reference in § 13.10.483).

W — Watsonville Utility Prohibition (-W)

Purpose: Discourage urbanization of coastal farmlands/wetlands west of Watsonville by prohibiting water/sewer extensions across a mapped 1‑foot utility prohibition strip along Hwy 1 and city limits in the Coastal Zone.
Where it applies: Along the western edge of Hwy 1 from Buena Vista Dr. to the Monterey County line and adjacent to Watsonville city limits west of Hwy 1 (§ 13.10.492).
Key standards: No potable water/wastewater lines may cross the strip, except for limited, specified exceptions and only after full LCP/CEQA processes (§ 13.10.493(C)).

Min — Ministerial Combining District (-Min)

Purpose: Provide ministerial (by-right) approval for certain multifamily housing where ≥20% of units are restricted for lower-income households, consistent with Government Code § 65583.2 and the County’s Housing Element.
Where it applies: Parcels mapped with -Min.
Key standards: Objective standards still apply; minimum density generally ≥20 du/ac; qualifying projects are reviewed ministerially and are exempt from CEQA; design review may occur but remains non-discretionary (§ 13.10.494–497).

Checklist

Confirm your parcel is in unincorporated Santa Cruz County and identify its base zone and all applied Combining Districts in the County GIS (§ 13.10.180; § 13.10.400).
Read overlay-specific purpose, designation, and standards cited above; note any coastal triggers or habitat constraints (e.g., GH, SP, W).
Check if the project also requires design review and whether overlay rules change setbacks, FAR, or height (e.g., SBE/PP).
Coordinate overlay standards with base-zone development standards and parking ratios.
For housing overlays (H, R, Min, PRH), confirm eligibility, affordability requirements, density minimums, and any PUD or ministerial criteria.
For L (Historic) and PP/SBE neighborhoods, expect added design constraints and possible approvals under Chapter 16.42 and § 13.10.681(D).
Where standards create hardship, explore variances and exceptions referenced in Title 13/18.

Risks & Ambiguities

Issue	Why it matters	What to verify
Overlay boundaries	A parcel may only partially lie in an overlay	Confirm exact GIS mapping for the parcel (§ 13.10.180).
Coastal Zone interplay	Coastal permits or LCP policies can override timelines and add standards	If in the Coastal Zone, identify coastal permit needs and LCP effects (e.g., PRH eligibility, W exceptions).
Hazard mapping detail	GH areas require site-specific studies	Whether your site triggers a geotechnical report and which Chapter 16.10 standards apply (§ 13.10.423).
Airport AIA caps	People-per-acre caps can downsize projects	Which 13.12 safety zone you’re in and the applicable density/intensity limits (§ 13.12.040).
SBE/PP measurement quirks	Unique height/setback formulas affect design feasibility	For SBE, height measured from curb; for PP, second-story step-backs and ADU height caps (§ 13.10.436; § 13.10.681(D)).
H/R/Min affordability & process	Missing a threshold (e.g., % affordable) can change permit type	Affordable %, PUD requirement (R), and ministerial criteria (Min) (§ 13.10.433; § 13.10.476–477; § 13.10.494–497).
Historic (L) scope of work	Even minor exterior work can be regulated	Whether your work is an alteration subject to Chapter 16.42 (§ 13.10.453).

Plain-English Summary

Overlays in unincorporated Santa Cruz County are add-ons to your base zoning that can change what you can build or use a property for. Some expand options (like PRH or Min), some add protections (like GH, SP, L), and others fine-tune design (PP, SBE) or restrict infrastructure (W). Before drawing plans, confirm every overlay on your parcel and integrate those rules with base-zone standards and any design review steps.

Source References

Zoning map and Combining Districts list: § 13.10.180; § 13.10.400.
D — Designated Park Site: § 13.10.416–418.
GH — Geologic Hazards: § 13.10.421–423.
PRH — Permanent Room Housing: § 13.10.425–429.
H — Assisted Housing: § 13.10.431–433.
SBE — Seascape Beach Estates: § 13.10.434–436.
AIA — Airport Influence Area: § 13.10.437–439; Airport safety zones § 13.12.040.
I — Statement of Intention: § 13.10.441–443.
PP — Pleasure Point Community Design: § 13.10.444–446; ADU rule § 13.10.681(D).
L — Historic Landmark: § 13.10.451–453.
MH — Mobile Home Park: § 13.10.456–458.
O — Open Space Easement: § 13.10.461–463.
P — Agricultural Preserve/Farmland Security: § 13.10.471–473; CA findings § 13.10.314.
R — Regional Housing Need: § 13.10.475–477.
SP — Salamander Protection: § 13.10.481–483.
W — Watsonville Utility Prohibition: § 13.10.491–493.

Sources

Retrieved passages

Santa Cruz County Zoning Code (§ 7) Medium relevance
Santa Cruz County Zoning Code (§ 1) Medium relevance
Santa Cruz County Zoning Code (Chapter 13.14) Medium relevance
Santa Cruz County Zoning Code Medium relevance
Santa Cruz County Zoning Code (section and) Medium relevance
Santa Cruz County Zoning Code Medium relevance
Santa Cruz County Zoning Code (§ 13.10.650) Medium relevance
Santa Cruz County Zoning Code (chapter in) Medium relevance
CBC § 3 (Article III-A.) High relevance
Santa Cruz County Zoning Code (Chapter 16.10) High relevance
Santa Cruz County Zoning Code (§ 4) High relevance
Santa Cruz County Zoning Code (§ 1) High relevance
Santa Cruz County Zoning Code (Chapter 13.12) Medium relevance
Santa Cruz County Zoning Code (§ 4) Medium relevance
Santa Cruz County Zoning Code (Article VI) Medium relevance
Santa Cruz County Zoning Code (§ 7) Medium relevance
Santa Cruz County Zoning Code (§ 1) Medium relevance
Santa Cruz County Zoning Code (Article IV.) Medium relevance
Santa Cruz County Zoning Code Medium relevance
Santa Cruz County Zoning Code (§ 3) Medium relevance
Santa Cruz County Zoning Code (§ 1) Medium relevance
Santa Cruz County Zoning Code (Chapter 14.01) Medium relevance
Santa Cruz County Zoning Code (Article 7) High relevance
Santa Cruz County Zoning Code (section are) High relevance
Santa Cruz County Zoning Code (Article VI.) High relevance
Santa Cruz County Zoning Code (Chapter 16.50) High relevance
Santa Cruz County Zoning Code (§ 1) Medium relevance
Santa Cruz County Zoning Code (§ 3) Medium relevance
Santa Cruz County Zoning Code Medium relevance

Cited sections

Zoning map and Combining Districts list: § 13.10.180; § 13.10.400. (§ 13.10.180)
D — Designated Park Site: § 13.10.416–418. (§ 13.10.416)
GH — Geologic Hazards: § 13.10.421–423. (§ 13.10.421)
PRH — Permanent Room Housing: § 13.10.425–429. (§ 13.10.425)
H — Assisted Housing: § 13.10.431–433. (§ 13.10.431)
SBE — Seascape Beach Estates: § 13.10.434–436. (§ 13.10.434)
AIA — Airport Influence Area: § 13.10.437–439; Airport safety zones § 13.12.040. (§ 13.10.437)
I — Statement of Intention: § 13.10.441–443. (§ 13.10.441)
PP — Pleasure Point Community Design: § 13.10.444–446; ADU rule § 13.10.681(D). (§ 13.10.444)
L — Historic Landmark: § 13.10.451–453. (§ 13.10.451)
MH — Mobile Home Park: § 13.10.456–458. (§ 13.10.456)
O — Open Space Easement: § 13.10.461–463. (§ 13.10.461)
P — Agricultural Preserve/Farmland Security: § 13.10.471–473; CA findings § 13.10.314. (§ 13.10.471)
R — Regional Housing Need: § 13.10.475–477. (§ 13.10.475)
SP — Salamander Protection: § 13.10.481–483. (§ 13.10.481)
W — Watsonville Utility Prohibition: § 13.10.491–493. (§ 13.10.491)
SantaCruzCounty_ZoningCode.md

Official Santa Cruz County code library

Frequently asked questions

What overlay districts exist in unincorporated Santa Cruz County?

The County uses “Combining Districts” including D, GH, PRH, H, SBE, AIA, I, PP, L, MH, O, P, R, SP, W, and Min, each with a specific purpose and mapped area. The complete list is in § 13.10.400 and is shown on the County zoning map (§ 13.10.180).

How does the Pleasure Point (-PP) overlay change what I can build?

In PP, residential projects must meet added massing/second-story step-backs and design incentives on top of normal residential standards (§ 13.10.446). ADUs over garages have a distinct height cap in PP per § 13.10.681(D).

I’m in Seascape Beach Estates (-SBE). What are the biggest rules?

SBE caps FAR at 0.60, sets lot-specific rear setbacks, fixes front setbacks at 20 ft, and measures building height from the curb, among other nuances (§ 13.10.436). These override conflicting base-zone residential standards for those topics.

Can I convert an old motel to apartments under -PRH?

Possibly. If the structure was originally established as Type A visitor accommodations or certain care facilities, you can maintain existing PRH units or add units within density limits; in the Coastal Zone, VA- and CT-zoned parcels are not eligible (§ 13.10.426–427). Exceptions may be granted where they better meet PRH purposes (§ 13.10.429).

What does the -AIA (Airport) overlay restrict?

Within two miles of the Watsonville Airport, development must meet safety-zone limits on residential density and nonresidential intensity; some areas (e.g., Runway Protection Zone) prohibit structures (§ 13.12.040). The AIA overlay applies these rules in addition to base zoning (§ 13.10.437–439).

What is the -W (Watsonville Utility Prohibition) overlay?

It establishes a 1‑foot‑wide strip that prohibits potable water and wastewater pipelines crossing westward into sensitive coastal landscapes; only narrow, specified exceptions are possible and require LCP/CEQA processes (§ 13.10.491–493).

How do the -R and -Min housing overlays differ?

-R sets sites to a minimum 20 du/ac and requires a PUD at rezoning; RM standards apply with alternative standards available (§ 13.10.475–477). -Min provides ministerial approval for qualifying multifamily where ≥20% of units are lower-income and objective standards are met (§ 13.10.494–497).

Do overlays change my parking or design review obligations?

Yes, some overlays add or change development metrics that interact with parking and design review. For example, SBE and PP include special neighborhood-scale standards (§ 13.10.436; § 13.10.446), and L requires conformance with Chapter 16.42 for historic work (§ 13.10.453).

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