Building permits in unincorporated Santa Cruz County are issued by the Building Department within Community Development, which provides plan review, inspection and investigative services from 2150 North Congress Drive, Suite 206, Nogales (520-375-7880). The county still enforces the 2012 International Building Codes, in effect since September 2013, and states its solar engineering requirement and grading rules up front.
This guide covers what requires a permit in unincorporated Santa Cruz County, the published plan review percentages and when they are payable, the four-day week and the 5 p.m. counter cut-off, the grading permit that only issues alongside a building permit, the bond exemption certificate the department asks for, and the contracted review the department provides to some cities.
This guide covers unincorporated Santa Cruz County. The City of Nogales and other municipalities run their own departments.
The counter closes an hour before the office does. The Building Department observes hours from 7 a.m. to 6 p.m. Monday through Thursday, but because of the time required to accept or issue a building permit, no applications are accepted and no permits issued after 5 p.m. Combined with the four-day week, that leaves a narrower filing window than the published hours suggest — plan counter visits for early in the week and well before five.
What requires a permit in Santa Cruz County?
The Santa Cruz County Building Department, part of Community Development, provides plan review, inspection and investigative services for construction in the county. The department describes its own remit with unusual precision: it serves builders, developers and homeowners who build within the lawfully designated unincorporated areas of Santa Cruz County where the building code applies. That qualifying phrase is worth noticing — in Arizona, county building code coverage is a matter of local adoption rather than a statewide given, so confirm with the department that the code applies to your parcel before assuming. The codes it enforces are the 2012 International Building Codes, effective for all construction in the unincorporated county since 1 September 2013, so a design drawn to a current edition needs checking against the older text.
The department's reach is wider than the unincorporated county alone. It also provides inspection, plan review and investigative services to those cities that have entered into intergovernmental agreements with the county for building code services, and it provides plan review and inspection for county construction projects. That contracted-service arrangement is a recognisable Arizona pattern, and it means the answer to who reviews your plans is not always the same as who has jurisdiction over the land.
Alongside the building code the county administers a Zoning and Development Code regulating zoning matters and setbacks for structures, with a Planning and Zoning Commission granting conditional use permits at public hearing. Building and Planning sit together under Community Development, so a submittal that satisfies the building code but not the development code will still come back.
One further local ordinance touches most site work. The county has a Landscape Ordinance in effect, and the application package includes a signed and dated Landscape Form by which the owner or builder acknowledges that all disturbed areas will be re-seeded if required. It is a small piece of paper attached to a real obligation on the finished site.
Permit required
- New residential and commercial construction, additions and alterations
- Structural alterations, relocation and demolition
- Grading above the published volume threshold, permitted with the building permit
- Solar photovoltaic systems, with stamped engineering
- Manufactured home placement and accessory structures
- Electrical, plumbing and mechanical work
- Swimming pools and spas, with barrier compliance
- Work in areas covered by the county's zoning and development code requirements
Typically exempt
- Purely cosmetic finish work that alters no regulated system
- Like-for-like minor repairs that do not affect structure
- Routine maintenance that does not extend or reroute a regulated system
- Work outside the areas where the county building code applies, subject to confirmation
Santa Cruz County building department: who handles permitting
The Building Department works a four-day week, observing business hours from 7 a.m. to 6 p.m. Monday through Thursday. There is a second timing rule inside that: because of the time required to accept or issue a building permit, no applications are accepted and no permits issued after 5 p.m. The counter therefore closes an hour before the office does, which is exactly the kind of detail that costs a wasted trip if you arrive at half past five with a complete package.
Short on time to read all of this?
Get a free quote →The department publishes a Notice to Contractors asking that you supply it with a copy of your annual bond exemption certificate. That is the same state revenue document required at issuance in some Arizona municipalities, and it is not something most contractors carry to hand — it comes from a state agency rather than the county. Sort it out before your first filing here rather than at the counter.
The department has also published that it no longer sends mailed reminders of building permit expiration. On a slow-moving rural job that is a meaningful change of practice: the responsibility for tracking the permit's expiry now sits entirely with the permit holder, and an expired permit discovered late is a considerably more expensive problem than a renewed one.
| Detail | Information |
|---|---|
| Authority | Building Department, Community Development |
| Office | 2150 North Congress Drive, Suite 206, Nogales, AZ 85621; online applications by email to permitting@santacruzcountyaz.gov |
| Building permits and inspections | (520) 375-7880 |
| Office hours | 7 a.m. to 6 p.m., Monday through Thursday |
| Application and issuance cut-off | 5 p.m., an hour before the office closes |
| Plan review fee | A published percentage of the permit fee, due at submittal, non-refundable |
| Grading threshold | Grading above the published volume requires a permit |
| Contractor document | Annual bond exemption certificate requested by the department |
| Expiry reminders | No longer mailed; tracking sits with the permit holder |
| Also serves | Cities under intergovernmental agreement, and county projects |
Grading is bundled into the building permit, and it will not issue on its own. A grading permit is required in Santa Cruz County for grading above the published volume threshold, and that permit is included with the building permit — the county states that grading permits shall only be issued in conjunction with building permits, except where the grading falls under the Planning and Zoning department's jurisdiction or in special cases approved by the Building Official. Where a grading permit is required the applicant submits two complete sets of grading plans showing the areas to be graded. Plan the earthwork and the building submittal as one package.
The county is not the City of Nogales, even though they share an address book. Nogales runs its own building department at its own address with its own phone number and adopted codes, and the county office is a short distance away in the same city — which makes this an easy misfile. Complicating it further, the county also provides building code services under contract to municipalities that have signed intergovernmental agreements with it, so in some cases county staff review plans for land the county does not have jurisdiction over. Confirm both the jurisdiction and the reviewing office.
In 2025, building permits issued in unincorporated Santa Cruz County authorized 345 new privately owned housing units, all of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.
Santa Cruz County permits: record types and what each covers
The record catalog here is compact, but two entries carry conditions that shape a project's cost before the permit is even assessed: grading above the threshold, and solar with its engineering requirement.
Not sure this scope needs a permit?
Get a free quote →Residential permit types
| Permit type | What triggers it | Review path | Fee basis |
|---|---|---|---|
| New construction | New dwellings, additions, and accessory structures above the local size threshold | Plan review against the jurisdiction's adopted residential code and local amendments, plus zoning and setbacks | Valuation-based |
| Addition | Added conditioned or unconditioned space attached to an existing dwelling | Structural and energy review where the jurisdiction has adopted an energy code; most Arizona homes are in hot, dry climate zones, so envelope and equipment sizing draw attention | Valuation-based |
| Renovation / alteration | Structural changes, layout changes, or added plumbing, mechanical, or electrical | Plan review scaled to scope; a change that alters egress, structure, or a system is reviewed even where the footprint does not move | Valuation-based |
| Reroof | Roof covering replacement, recover, and structural deck repair | Deck and dry-in inspection; plan review rarely required, but a change of assembly type can trigger a structural check | Valuation or squares |
| Solar photovoltaic | Rooftop or ground-mount arrays, with or without battery storage | Single local review covering both the structural attachment and the electrical scope; there is no separate state electrical record in Arizona | Flat or system-size based |
| Battery energy storage | Wall or floor-mounted storage added to a dwelling | Electrical review plus fire separation, ventilation, and location check | Flat or per-permit minimum |
| Electrical | Service changes, panel upgrades, new circuits, EV chargers, meter sets, and rewiring | Local trade review and local inspection against the National Electrical Code edition the jurisdiction has adopted | Per-permit or per-device |
| Plumbing | New piping, repipes, fixtures, gas piping, and water heater replacement | Local trade review; performed by a contractor holding the matching Registrar of Contractors specialty classification | Per-permit minimum or per-fixture |
| Mechanical / HVAC | Changeouts, new ductwork, and refrigeration | Local trade review; changeout volume is heavy in Arizona given summer design temperatures | Per-permit minimum or per-unit |
| Patio cover and shade structure | Attached and detached covers, ramadas, and carports | Structural review for wind uplift and attachment, plus zoning for setbacks and lot coverage | Valuation or flat |
| Swimming pool | In-ground and above-ground pools and spas | Barrier, bonding, and electrical review; the local pool barrier rules apply, and Arizona’s state barrier law covers places with no local barrier ordinance | Valuation or flat |
| Manufactured home set-up | Placing or re-siting a manufactured or modular home | Installation permit and inspection through the Arizona Department of Housing’s Office of Manufactured Housing, or the local agency acting for it, with local zoning, setback, floodplain and utility connection review | Flat or per-unit |
| Demolition | Full or partial demolition of a dwelling or accessory structure | Utility disconnect confirmation, dust control where earthmoving is involved, and site restoration check | Flat |
| Landscape form | Included in the application package on most site work | Signed acknowledgement of the county's landscape ordinance obligations | No separate charge |
| Grading permit | Grading above the county's published volume threshold | Two complete sets of grading plans; issues only with a building permit | Included with the building permit |
Rather talk it over?
Call 1-855-478-4290 →Commercial permit types
| Permit type | What triggers it | Review path | Fee basis |
|---|---|---|---|
| New commercial construction | Ground-up commercial, industrial, and institutional buildings | Concurrent review against the jurisdiction's adopted building code and amendments, plus fire and zoning | Valuation-based |
| Tenant improvement / upfit | Interior fit-out of an existing tenant space | Building, trade, and life-safety review; accessibility attaches on change of use | Valuation-based |
| Change of occupancy | Converting a building or space to a different use group | Occupancy classification, egress, and accessibility review | Valuation or flat |
| Commercial electrical | Service, distribution, and branch circuit work | Local trade review and local inspection; Arizona has no central state electrical permit for either residential or commercial work | Per-permit or valuation |
| Commercial plumbing | Process piping, fixtures, backflow, and grease waste | Local trade review; backflow and grease interceptor sign-off where applicable | Per-fixture or valuation |
| Commercial mechanical | Rooftop units, kitchen exhaust and hood systems, and refrigeration | Local trade review; hood and suppression systems draw fire review alongside mechanical | Per-unit or valuation |
| Commercial reroof | Roof covering replacement on a commercial structure | Deck, dry-in, and attachment inspection | Valuation or squares |
| Signage | Wall, ground, and illuminated signs | Zoning review for size and placement, plus electrical where illuminated | Flat or per-sign |
| Grading and drainage | Clearing, grading, and site work that alters drainage | Civil review of grading and drainage, separate from the building permit; monsoon-season flows drive the design | Acreage or valuation |
| Dust control permit | Earthmoving, trenching, and construction dust on a qualifying site | County air quality department, not the building department; required under the county’s dust (PM-10) rules, which are strictest in the Phoenix-area PM-10 nonattainment area | County air quality fee schedule |
| Commercial demolition | Full or partial demolition of a commercial structure | Utility disconnect, asbestos notification, dust control, and site restoration | Flat or valuation |
| Conditional use permit | Uses requiring discretionary approval under the development code | Granted at public hearing by the Planning and Zoning Commission | Per the county's adopted fee provisions |
| Contracted city plan review | Municipalities under intergovernmental agreement with the county | County staff provide plan review and inspection under the agreement | Per the terms of the agreement |
Residential
- Building and trade permits are issued and inspected by the same local authority
- There is no separate state electrical permit — electrical is a local record
- Work that needs a permit must be done by a Registrar of Contractors licensee, at any job value, unless the owner is doing it under the owner-builder exemption
- A new or changed septic system needs approval from ADEQ, or the county agency acting for it, before it is installed
Commercial — multi-discipline
- Concurrent review across building, trades, fire, and zoning
- Signed and sealed plans from Arizona-registered design professionals, apart from the small buildings and alterations state law exempts
- The licensee's classification must match the actual scope of work
- Accessibility and life-safety review attach to any change of occupancy
Records you will actually see in Santa Cruz
| Record | What it covers |
|---|---|
| Building permit | New construction, additions, alterations, relocation and demolition |
| Grading permit | Grading above the published volume, issued in conjunction with the building permit |
| Solar photovoltaic permit | Arrays requiring stamped engineering for gravity and uplift loads |
| Trade permit | Electrical, plumbing and mechanical work by the licensed contractor |
| Manufactured home placement | Placement reviewed against the county's adopted standards |
| Conditional use permit | Granted at public hearing by the Planning and Zoning Commission |
| Zoning and development code review | Setbacks and land use under the county's development code |
| Landscape form | Signed acknowledgement of the county's landscape ordinance obligations |
| Contracted city review | Plan review and inspection for cities under intergovernmental agreement |
Rather not deal with the Santa Cruz County building department?
Get a free quote →Solar permits in Santa Cruz
Santa Cruz County states its solar requirement directly: solar permits require stamped engineering for gravity and uplift loads. That puts an engineer in the project team from the outset rather than as a response to a correction comment, and it should be budgeted alongside the array rather than treated as a contingency. The electrical scope stays with the county because Arizona has no state electrical permit, and interconnection runs on the serving utility’s own timetable.
Roofing permits in Santa Cruz
Re-roofing follows the ordinary sequence with the deck available for inspection before the covering goes on. The scheduling constraint here is the four-day week: with the office open Monday through Thursday, a failed inspection late in the week cannot be re-inspected until the following Monday, which on an open roof is a long time to be exposed. Book early in the week, and remember that the permit's expiry is now yours to track since the county no longer mails reminders.
Arizona solar and roofing work is permitted and inspected locally, against the code edition each jurisdiction has adopted; utilities run interconnection on their own timeline. Arizona rules
Santa Cruz County permit cost
Santa Cruz County is one of the more transparent Arizona jurisdictions on plan review cost, because the percentages are published rather than quoted. Plan review is assessed as a set share of the building permit fee, at a lower rate for one and two family dwellings and accessory structures and a higher rate for all other work, and it is due at the time of application submittal, is non-refundable, and is in addition to the permit fee.
Two further items belong in an early budget. Where grading exceeds the published threshold the grading permit is included with the building permit but the two complete sets of grading plans are a real design cost. And solar work here requires stamped engineering, which is an engineering fee rather than a permit fee but is no less certain.
| Fee component | How it works |
|---|---|
| Building permit fee | Assessed under the county's adopted fee provisions |
| Plan review, dwellings and accessory structures | A published lower percentage of the permit fee |
| Plan review, all other work | A published higher percentage of the permit fee |
| When plan review is due | At the time of application submittal, and non-refundable |
| Grading permit | Included with the building permit above the volume threshold |
| Solar engineering | Stamped engineering for gravity and uplift loads, borne by the applicant |
| Re-inspection | Charged where an inspection has to be repeated |
Want a precise number for a specific Santa Cruz project? Send us the scope and we will price the permit path before you file.
Santa Cruz County trade permits
The trades are permitted and inspected by the county under its adopted codes, and every contractor on the job is expected to hold a current Registrar of Contractors licence, with the general contractor identifying its subcontractors and their licence details on the application.
Electrical permits
Required for service work, panel changes, photovoltaic systems and most wiring alterations. Arizona has no state electrical permit, so the record stays with the county. Where the department is providing review under an intergovernmental agreement rather than as the land use authority, confirm which entity's adopted code applies.
Plumbing permits
Required for new piping, repipes, fixtures and water heaters. On rural parcels the plumbing scope connects to an on-site wastewater system, which is handled by the county’s Health Services rather than the Building Department, so establish the wastewater path early on any parcel without a public sewer connection.
Mechanical permits
Required for heating, ventilation and air-conditioning work, ductwork and refrigeration. Santa Cruz County sits at higher elevation than the low desert, so the heating side of the load is more significant here than in Yuma or Lake Havasu City and should not be sized from a Valley assumption.
Solar photovoltaic work
The department states directly that solar permits require stamped engineering for gravity and uplift loads, which means an engineer is in the project team from the start rather than being brought in if the reviewer asks. Budget the engineering alongside the array.
Want this handled start to finish?
Get a free quote →Arizona licenses contractors through the state Registrar of Contractors, and the small-job exemption never covers work that needs a permit. Arizona rules
Santa Cruz County permit application: how to apply step by step
Here is how to get a building permit in Santa Cruz County, from confirming the requirement through to close-out. Each step below corresponds to a real decision point where projects commonly stall.
Establish that the parcel is in the unincorporated county rather than Nogales or another municipality, and confirm with the department that the building code applies to that area — the department's own description is careful on this point.
The department asks contractors to supply a copy of their annual bond exemption certificate. It comes from a state agency rather than the county, so obtain it before your first filing rather than discovering it at the counter.
Grading above the published volume threshold requires a permit, and that permit is only issued in conjunction with a building permit. Where it applies, prepare two complete sets of grading plans showing the areas to be graded as part of the same package.
Plan review is a published percentage of the permit fee — lower for one and two family dwellings and accessory structures, higher for everything else — due at submittal and non-refundable. Make the decision to proceed before paying it.
The office runs 7 a.m. to 6 p.m. Monday through Thursday, but no applications are accepted and no permits issued after 5 p.m. Arrive with time to spare, and remember there is no Friday.
The county no longer mails reminders of building permit expiration. Diary the expiry yourself and keep inspections moving, because an expired permit found late costs considerably more than a renewal.
Inspections in Santa Cruz County
Inspections are performed by the Building Department, which also provides investigative services — the department's own framing, and a reminder that it looks into work done without permits as well as inspecting work done with them. Requests go through the building permits and inspections line.
The four-day week is the scheduling constraint to design around. With the office open Monday through Thursday, a failed inspection late in the week cannot be re-inspected until the following Monday. On weather-sensitive work — an open roof, a poured slab, an open trench — book early in the week and leave the site in a condition that can survive a long weekend.
Because the county administers a zoning and development code alongside the building code, and a landscape ordinance alongside both, close-out can raise items that are not building code items at all. Setbacks under the development code and the re-seeding of disturbed areas under the landscape ordinance are both real obligations on the finished site rather than paperwork attached to the application.
Close-out runs through the department's final inspection to occupancy, with the development code and landscape obligations cleared alongside the building items. Given the four-day week and the 5 p.m. counter cut-off, leave more slack around the final here than a metropolitan programme would assume.
Santa Cruz County permit search and official resources
These are the primary Santa Cruz County and Arizona sources behind this guide. Fee percentages, hours and adopted codes change by Board action, so confirm against these pages before you file.
- Santa Cruz County Building Department
- Santa Cruz County Community Development
- Santa Cruz County Guidelines for Builders
- Santa Cruz County Zoning and Development Code
- Arizona Registrar of Contractors
- Arizona Department of Revenue
- Arizona Department of Environmental Quality
Inspections are where schedules slip.
Get a free quote →Frequently asked questions
Do I need a building permit in unincorporated Santa Cruz County?
For most construction, yes. The Building Department provides plan review, inspection and investigative services for construction in the lawfully designated unincorporated areas of the county where the building code applies. That qualifying phrase matters in Arizona, where county code coverage is a matter of local adoption — confirm with the department that the code applies to your parcel.
How much is plan review in Santa Cruz County?
It is a published percentage of the building permit fee: a lower share for one and two family dwellings and accessory structures, and a higher share for all other work. It is due at the time of application submittal, it is non-refundable, and it is in addition to the permit fee itself. Confirm the current percentages with the department before budgeting.
What are the county's office hours?
The Building Department observes business hours from 7 a.m. to 6 p.m. Monday through Thursday. Because of the time required to accept or issue a building permit, no applications are accepted and no permits issued after 5 p.m. — so the counter effectively closes an hour before the office does, and there is no Friday service.
When do I need a grading permit?
For grading above the county's published volume threshold. The grading permit is included with the building permit, and the county states that grading permits shall only be issued in conjunction with building permits — the exceptions being grading under the Planning and Zoning department's jurisdiction and special cases approved by the Building Official. Where it applies you submit two complete sets of grading plans.
What does the county require for a solar permit?
Stamped engineering for gravity and uplift loads. The department states this directly, so an engineer belongs in the project team from the start rather than being added if a reviewer asks for calculations.
What is the bond exemption certificate the department asks for?
A state revenue document. The department publishes a notice asking contractors to supply a copy of their annual bond exemption certificate. It comes from a state agency rather than the county, and most contractors do not carry it to hand, so obtain it ahead of your first filing here. The same document is required at issuance in some Arizona municipalities.
Will the county remind me when my permit expires?
No. The county has published that it no longer sends reminders of building permit expiration in the mail. Tracking the expiry date is entirely the permit holder's responsibility now, which matters most on slow-moving rural jobs where months can pass between phases.
Does the county permit work inside Nogales?
No. The City of Nogales runs its own building department with its own address, phone number and adopted codes, and it is a short distance from the county office in the same city — which makes misfiling easy. Confirm jurisdiction from the parcel rather than the postal address.
Why would county staff review plans for a city?
Because the department also provides inspection, plan review and investigative services to those cities that have entered into intergovernmental agreements with the county for building code services. It is a recognisable Arizona arrangement, and it means the office reviewing your plans is not always the authority with jurisdiction over the land.
What is the landscape form?
A signed and dated acknowledgement, included in the application package, that the county has a landscape ordinance in effect and that all disturbed areas will be re-seeded if required. It is a small piece of paper attached to a real obligation on the finished site rather than a formality at intake.
Do the state accessory dwelling unit rules apply here?
Yes, since 2026. A 2025 law (A.R.S. 11-810.01) requires every Arizona county to allow at least one attached and one detached accessory dwelling unit as a permitted use on any lot where a single-family dwelling is allowed, with county regulations due by 1 January 2026. It does not apply on tribal land or near military and some public airports. The detail is in the county’s zoning and development code, so check it before you design.
Who do I name on the application?
Every contractor hired must hold a current licence with the Arizona Registrar of Contractors. Where a general contractor is used, the applicant provides that contractor's name, licence number, address and telephone number, together with the subcontractors and their licence information. Have the full list assembled before you file.
Simplify Santa Cruz County permitting with Alliance Permitting
Santa Cruz County states many of its own rules up front — the solar engineering requirement, the grading rule, the bond exemption certificate request, the end of mailed expiry reminders — and still enforces the 2012 codes. The risk here is not ambiguity, it is arriving without the documents the published rules assume. Alliance Permitting prepares, files and tracks Santa Cruz County permits through issuance.
Trusted by leading builders, developers, and national contractors — 21+ years of filing in the jurisdictions we write about.
Contractors and builders choose Alliance for Santa Cruz because the work is done by people who have stood at the counter:
- We get the bond exemption certificate in place before the first filing, not at the counter.
- We package the grading plans with the building submittal, since grading will not issue alone.
- We budget the non-refundable plan review percentage before the go decision, not after.
- We track the permit's expiry ourselves, because the county no longer mails reminders.
Alliance Permitting is a permit documentation and expediting service in Arizona. We are not a law firm and do not provide legal advice, and we are not the permitting authority.
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More Arizona permitting guides
This guide is provided by Alliance Permitting for general information about Santa Cruz County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.