Bolthole Index

Mohave County, Arizona

Building permits, zoning and septic in Lake Havasu City, Arizona

Lake Havasu City, Arizona has a city Building Division that reviews building permits, and city zoning applies to land uses and development inside city limits.12 In Mohave County, septic-system construction and discharge authorizations come from County Development Services under delegated ADEQ authority.34 New buildings in Lake Havasu City must connect to public sewer where available before occupancy.5

At a glance

Building permits
City Building Division; listed home repairs and improvements require building permits.16
Zoning
City Development Code applies within city limits, subject to specific exemptions.2
Sewer connection
Required for new buildings where public sewer is available, before occupancy.5
Septic systems
Mohave County Development Services handles construction and discharge authorizations; temporary onsite systems have city conditions.47
Owner-builder
Conditional; the city application requires ownership for 1 year after completion before renting, selling or leasing.8
Occupancy
A Certificate of Occupancy is required before using a structure covered by the city application.9

Who to call

Building permits

Lake Havasu City Building Division

City building-permit applications, construction-code questions and building-permit history requests

928-453-4148

Online permits →

Zoning

Lake Havasu City Planning & Zoning

City land-use applications, zoning questions and subdivision review

928-453-4148, select option #3

Online permits →

Septic permits

Mohave County Development Services — Environmental Quality

Conventional and some alternative onsite septic-system permitting, site investigations and inspections

(928)757-0903

[email protected]

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

Going off-grid in Lake Havasu City means bringing your own water and power. The kit we’d start with:

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

Do you need a building permit in Lake Havasu City, AZ?

Lake Havasu City lists home repairs and improvements requiring building permits, but warns that the list does not cover every project requiring approval.610 Room additions, patio covers and photovoltaic systems appear on the city’s building-permit list.10 Ask the City Building Division about the exact scope of your proposed home or alteration before starting work.1

An owner-builder option does not remove the city’s building-permit process: the city application requires the owner to use licensed contractors exclusively or perform work personally or through employees.8 The city application also requires ownership for 1 year after completion before renting, selling or leasing the residence.8

Who issues building permits in Lake Havasu City?

The Lake Havasu City Building Division manages building-permit review and construction activity; use the municipal office for a property inside city limits.1 Apply through the city’s online customer portal linked by the Building Permits page.10 Call the Building Division using the contact below to discuss construction-code questions.10

For an existing house, request building-permit records for the address by emailing the Building Division through its official page.10 Lake Havasu City requires a Certificate of Occupancy before occupancy or use of a structure covered by its application, so include occupancy approval in your purchase or construction questions.9

Does Lake Havasu City have zoning, and can you live in an RV?

Lake Havasu City’s Development Code applies to land uses, subdivisions and development within city limits unless a specific code section provides an exemption.2 The city lists residential, mixed-use, special-purpose and overlay zoning districts, and maintains an electronic official zoning map.11 Ask City Planning & Zoning to identify the parcel’s district and the applicable lot-size, setback, coverage and height standards before designing a home.1112

We could not confirm the complete Lake Havasu City rules for residential RV use, temporary camping, tiny homes or accessory dwellings; ask City Planning & Zoning about the proposed use before buying land for that purpose.12 City Planning reviews conditional-use, variance, rezoning and subdivision applications, so a proposed land use may require a separate planning decision from the building-permit review.1210

How do sewer and septic permits work in Lake Havasu City?

New buildings in Lake Havasu City must connect to public sewer where available before a Certificate of Occupancy and before occupancy or beneficial use.5 Qualifying residences in existing platted areas without available public sewer may install temporary onsite wastewater systems subject to ADEQ and county rules and appropriate authorizations; connection is required when sewer becomes available, and the Director may require a dry sewer lateral.7

Mohave County Development Services processes conventional and some alternative septic systems under delegated ADEQ authority.3 Submit a Notice of Intent to Discharge and the required materials; septic construction cannot begin before Construction Authorization, and discharge cannot begin before Discharge Authorization.4 The county requires completion and a Request for Discharge Authorization within 2 years, including certification of the tank’s post-installation watertightness test.13 Establish sewer availability with the city before paying for a septic design.57

Building a home in Lake Havasu City: what are the steps?

Start with City Planning & Zoning: identify the parcel’s district and discuss the home and any requested land-use approval.1112 Resolve public-sewer availability next; qualifying temporary septic systems require county and ADEQ compliance rather than a permanent promise of off-grid sanitation.57

Submit the building-permit application through the city portal with a complete plan package; Lake Havasu City does not begin plan review until the application submittal is complete.10 Development Services reviews construction plans for building-code, zoning and engineering compliance, and applicants must respond to required corrections.10 Building-permit issuance requires payment of permit and plan-check fees, plus off-site improvement guarantees and county health approval when required.10 Obtain the city’s Certificate of Occupancy before moving into the completed home.9

What stays with Mohave County, and what should Lake Havasu City buyers check?

Septic-system application processing, construction authorizations, inspections and discharge authorizations remain with Mohave County Development Services rather than the City Building Division.3 A septic site investigation provides the information needed to select and size the system; ask Environmental Quality about the parcel before committing to an onsite design.14 For land outside city limits, consult the Mohave County guide: county building rules apply to unincorporated areas.15

Lake Havasu City’s Building Permits page provides residential driveway requirements and a floodplain-development application; ask the city which engineering review applies to your driveway or flood exposure.10 We could not confirm the complete city floodplain-development and driveway-access requirements, so settle those questions with the city before assuming a lot is ready to build.10

Watch-outs

  • Do not plan permanent septic as an alternative to an available Lake Havasu City sewer connection; new buildings must connect where public sewer is available.5
  • We could not confirm complete Lake Havasu City RV, tiny-home or accessory-dwelling occupancy rules; ask City Planning & Zoning before buying for those uses.12
  • Lake Havasu City’s owner-builder application requires ownership for 1 year after completion before renting, selling or leasing the residence.8

Sources

  1. Building Permits | Lake Havasu City (Lake Havasu City), quoted and re-checked
  2. Lake Havasu City Development Code, § 14.01.05 (Lake Havasu City), quoted and re-checked
  3. Septic & Well Permitting, quoted and re-checked
  4. Notice of Intent to Discharge On-Site Wastewater Treatment Facility, quoted and re-checked
  5. Lake Havasu City Code, § 4.12.030 Required Connection (Lake Havasu City), quoted and re-checked
  6. Building Permits | Lake Havasu City (Lake Havasu City), quoted and re-checked
  7. Lake Havasu City Code, § 4.12.030 Required Connection (Lake Havasu City), quoted and re-checked
  8. Lake Havasu City Permit and Zoning Clearance Application (Lake Havasu City), quoted and re-checked
  9. Lake Havasu City Permit and Zoning Clearance Application (Lake Havasu City), quoted and re-checked
  10. Lake Havasu City Building Division (lhcaz.gov)
  11. Lake Havasu City Development Code, § 14.02.02 (Lake Havasu City), quoted and re-checked
  12. Lake Havasu City Planning & Zoning (lhcaz.gov)
  13. Notice of Intent to Discharge On-Site Wastewater Treatment Facility, quoted and re-checked
  14. Mohave County Development Services — Environmental Quality (mohave.gov)
  15. Building Ordinance 2021-03, quoted and re-checked

Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for Lake Havasu City

Lake Havasu City’s own rules

  • Building permitLimited

    The city’s listed home-repair and improvement categories inside Lake Havasu City.

    • The city warns that its list is a guide and does not include all projects requiring permits.
    “HOME REPAIRS AND HOME IMPROVEMENTS THAT REQUIRE PERMITS”
  • Owner-builder exemptionConditional

    Owner-builders using the Lake Havasu City building permit application.

    • The owner must either exclusively contract licensed contractors or perform the work personally or through employees.
    • The owner must own the home for one year after completion before renting, selling, or leasing it.

    post-completion ownership period: 1 year (Before renting, selling, or leasing the residence)

    “I understand that I must own the home for a period of one (1) year following completion prior to renting, selling, or leasing the residence.”
  • Building code adoptedAdopted

    Building, electrical, plumbing, mechanical, accessibility, and dangerous-building code administration inside Lake Havasu City.

    • The city page describes the adopted uniform construction codes but does not identify every edition in the quoted passage.
    “The Building Division manages all the building permit review and construction activity”
  • Certificate of occupancyRequired

    Occupancy or use of structures covered by the city permit application inside Lake Havasu City.

    • The application states that occupancy or use is not allowed until a Certificate of Occupancy is issued.
    • The application also states that failure may result in a civil infraction.
    “Occupancy or use of any structure is not allowed until a Certificate of Occupancy is issued.”
  • Local zoningPresent

    All land uses, subdivisions, and development within Lake Havasu City city limits.

    • The Development Code states that exemptions may exist in specific sections of the Code.
    “This Development Code applies to all land uses, subdivisions and development within Lake Havasu City unless specifically exempted by specific sections of this Code.”
  • Zoning districtsPublished

    Lake Havasu City zoning districts.

    • The code lists residential, mixed-use, special-purpose, and overlay districts.
    • The official zoning map is maintained electronically by the Community Investment Department.
    “The base zoning districts are grouped into 3 types — residential, mixed use, and special purpose.”
  • Off-grid sanitationLimited

    Temporary onsite wastewater treatment systems for qualifying single-family and two-family residences inside existing platted areas of Lake Havasu City when public sewer is unavailable at permit issuance.

    • ADEQ and county regulations apply.
    • Appropriate permits are required.
    • A dry sewer lateral may be required by the Director.
    • Connection to public sewer is required when it becomes available.
    “shall be allowed to install temporary onsite wastewater treatment systems in accordance with ADEQ and county regulations”
  • Mandatory utility hookupSewer (with conditions)

    New buildings inside Lake Havasu City where public sewer is available.

    • Public sewer availability is defined in § 4.12.030.
    • Connection must occur before certificate of occupancy and before occupancy or beneficial use.
    • New single-family residences require a city plumbing permit and treatment-capacity fee.
    • Existing single-family and two-family residences have specified city connection responsibilities and exceptions.
    • Existing qualifying denitrifying systems in ban areas have special failure-based treatment.
    • Existing platted areas may use temporary onsite systems when public sewer is unavailable, subject to ADEQ and county regulations and appropriate permits.
    • A new subdivision or property creating more than two buildable lots must provide centralized sewer collection and treatment.

    notice-to-connect period: 14 days (After written notice, where applicable)

    “All buildings located within the areas to which public sewer is or becomes available are required to connect to public sewer as provided herein.”
  • Subdividing landRegulated (with conditions)

    Subdivisions and development inside Lake Havasu City.

    • The Development Code applies unless specifically exempted by code.
    • The reviewed excerpt does not provide the full plat-approval process or all subdivision standards.
    “This Development Code applies to all land uses, subdivisions and development within Lake Havasu City”
  • Permit feesVariable (with conditions)

    Lake Havasu City building-permit issuance.

    • All permit and plan-check fees must be paid for issuance.
    • The reviewed page does not provide the numeric fee schedule.
    “Permit fees for new buildings, additions, pools, and retaining walls are based on the valuation (total construction costs) of the buildings or structures.”

Rules another office applies inside Lake Havasu City

Lake Havasu City does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Who permits septicCounty

    Septic tank installation and percolation tests for property inside Lake Havasu City.

    • The city’s permit form directs applicants to the Mohave County Health Department for these matters.
    “The authority for the environmental programs is delegated to Development Services by ADEQ.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Lake Havasu City or Mohave County directly.

  • Inspections — Building inspections inside Lake Havasu City city limits.
  • Minimum dwelling size — Residential districts inside Lake Havasu City.
  • Minimum lot size — Residential districts inside Lake Havasu City.
  • Setbacks — Residential districts inside Lake Havasu City.
  • Lot coverage — Residential districts inside Lake Havasu City.
13 more unanswered
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Septic permit
  • Septic inspection
  • Well permit
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Short-term rentals

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Lake Havasu City publishes no rule on the point, not that none exists. Mohave County’s page lists the county offices to call.

← All of Mohave County: county rules, score and offices