Bolthole Index

Martin County, Florida

Building permits, zoning and septic in the Town of Jupiter Island, Florida

The Town of Jupiter Island, Florida has its own Building Department for building permits, zoning, plan review and inspections.1 Building permits are required for covered construction under Florida law, subject to statutory exceptions.2 Inside the town in Martin County, septic permitting and inspection remain with the Florida Department of Health in Martin County.3

At a glance

Building permits
Town Building Department; required for covered construction, with statutory exceptions12
Zoning
Town zoning and land development regulations apply4
Septic permits
Florida Department of Health in Martin County35
Accessory living quarters
Limited in the B-40 District; incidental to a detached single-family dwelling6
Owner-builder
State exemption is conditional; building permits and code compliance still apply7
Floodplain
Town flood-hazard variance procedures apply; affidavit permits do not waive flood requirements8

Who to call

Building permits

Town of Jupiter Island Building Department

Town building permits, zoning, plan review, inspections and code enforcement

772-545-0150

Building@tji.martin.fl.us

2 Bridge Road Town Hall Hobe Sound, FL 33455

Septic permits

Florida Department of Health in Martin County — Environmental Public Health

Septic permitting and inspection; assistance locating septic and well records

772-221-4000, option 5

CHD43-MartinCountyEnvironmentalHealthRequests@flhealth.gov

3441 SE Willoughby Blvd. Stuart, FL 34994

Online permits →

Building permits

Town of Jupiter Island Building Department — Building Applications

Building permit requirements and application forms

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 Town of Jupiter Island means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in the Town of Jupiter Island, FL?

The Town of Jupiter Island requires application to the building official and the required building permit before construction, enlargement, alteration, repair, moving or demolition, and before regulated electrical, gas, mechanical or plumbing work.9 For project-specific exemptions, the town directs applicants to the Florida Building Code or its Building Department.9 The Florida Building Code applies statewide, and Jupiter Island has adopted administrative amendments concerning affidavit-based building permits and flood-hazard variances.1011

An eligible Jupiter Island owner-builder can act as the contractor for a residence for the owner’s own use, with direct onsite supervision and personal signing of the building permit application; that exemption does not remove building permits, inspections or code compliance.7

Who handles building permits and zoning in the Town of Jupiter Island?

The Town of Jupiter Island Building Department handles zoning, building permits, plan review, inspections, contractor licensing and code enforcement.1 Contact the town Building Department for the project’s building application, zoning review and inspection arrangements.1

Septic approval is a separate responsibility: the Florida Department of Health in Martin County handles septic permitting and inspection inside Jupiter Island.3 For property outside town limits, use the Martin County guide for the county’s building application and review process for unincorporated land.12

Does the Town of Jupiter Island have zoning and district development rules?

The Town of Jupiter Island is comprehensively zoned under its own land development regulations.4 In the B-40 District, no more than two accessory buildings for living quarters are permitted, and accessory uses must be incidental to a detached single-family dwelling, involve no business activity and comply with district regulations.6

Jupiter Island’s A-80 and B-40 districts limit building height to 2 stories.1314 For driveway administrative approval, the town lists separation of more than 8 feet from side and rear lot lines in A-80, B-40 and G-35, and more than 3 feet in other zoning districts; these are driveway review thresholds, not house setbacks.15

How do septic permits work inside the Town of Jupiter Island?

For construction or additional living space served by septic in the Town of Jupiter Island, submit the septic application, site plan, building floor plan and required application fee to the local county health department.5 A site evaluation is required; the health department can perform the evaluation for a fee, or the applicant can hire a private evaluator.5

Florida also requires the applicable septic approval when installing, replacing, repairing, modifying or abandoning an onsite sewage system.16 The Florida Department of Health in Martin County continues local septic permitting and inspection, while DEP is responsible for the statewide program.3

Can you live in an RV or tiny home in the Town of Jupiter Island?

We could not confirm permission for RV living, temporary camping or tiny-home occupancy on a private lot in the Town of Jupiter Island; ask the town Building Department about the proposed use before buying a vehicle or choosing a house plan.1 Jupiter Island’s zoning applies locally, and the B-40 allowance for accessory living quarters is conditional on the principal detached single-family dwelling and district regulations.46

For a manufactured dwelling, Florida installation inspection and occupancy requirements remain separate from local land-use, setback and site-development requirements.17 Ask the town Building Department to review the actual dwelling and lot.1

Building a home in the Town of Jupiter Island: what should you check first?

  1. Start with the Town of Jupiter Island Building Department for zoning and building review of the proposed home and site plan.1
  2. Match the driveway layout to the town’s district-specific administrative review thresholds.15
  3. If the home will use septic, arrange the site evaluation and septic application with the Florida Department of Health in Martin County.5
  4. Obtain the required town building permit before starting covered construction.9

For flood-hazard development in Jupiter Island, the town’s local variance procedures apply, and affidavit-based building permit authority does not extend to flood-load and flood-resistance requirements.8 We could not confirm the town’s minimum dwelling area, required utility connections or current project-specific fee total; ask the Building Department before committing to the design.1

Watch-outs

  • An owner-builder exemption in Jupiter Island does not eliminate building permits, inspections or compliance with zoning and building codes.7
  • Jupiter Island’s affidavit-based building permit provisions do not waive flood-load or flood-resistance requirements.8
  • We could not confirm private-lot RV occupancy or tiny-home permission in Jupiter Island; ask the town Building Department.1

Sources

  1. Town of Jupiter Island Building Department (townofjupiterisland.com)
  2. F.S. 553.79 — Permits; applications; issuance; inspections (Florida statewide rule), quoted and re-checked
  3. Jupiter Island Construction and Floodplain Management Regulations (Town of Jupiter Island), quoted and re-checked
  4. Jupiter Island Land Development Regulations, Sec. 1.04 (Town of Jupiter Island), quoted and re-checked
  5. Jupiter Island Construction and Floodplain Management Regulations (Town of Jupiter Island), quoted and re-checked
  6. Jupiter Island Land Development Regulations, B-40 Sec. 3.00 (Town of Jupiter Island), quoted and re-checked
  7. 2026 Florida Statutes § 489.103, Exemptions (Florida statewide rule), quoted and re-checked
  8. Jupiter Island Construction and Floodplain Management Regulations (Town of Jupiter Island), quoted and re-checked
  9. Town of Jupiter Island Building Department — Building Applications (townofjupiterisland.com)
  10. Florida Statutes § 553.73 — Florida Building Code (Florida statewide rule), quoted and re-checked
  11. Jupiter Island Construction and Floodplain Management Regulations (Town of Jupiter Island), quoted and re-checked
  12. Do I Need a Building Permit?, quoted and re-checked
  13. library.municode.com (Town of Jupiter Island), quoted and re-checked
  14. Jupiter Island Land Development Regulations, B-40 District development standards (Town of Jupiter Island), quoted and re-checked
  15. Jupiter Island Land Development Regulations, Sec. 1.00 Applicability (Town of Jupiter Island), quoted and re-checked
  16. OSTDS Construction Application (Florida statewide rule), quoted and re-checked
  17. Florida Statutes § 320.8285: Onsite inspection (Florida statewide rule), 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 Town of Jupiter Island

Town of Jupiter Island’s own rules

  • Building permitRequired

    Construction and regulated building-system work inside Jupiter Island town limits.

    • The owner or authorized agent must apply to the building official and obtain the required permit; specific requirements are directed to Florida Building Code section 105.2.
    “shall first make application to the building official and obtain the required permit.”
  • Owner-builder exemptionConditional

    Owner-builder permits issued by the Jupiter Island Building Department.

    • Owner must perform or supervise construction.
    • Owner-builder work is limited to a one-family or two-family residence, farm outbuilding, or commercial building costing no more than $75,000.
    • The building or residence must be for the owner's own use or occupancy and not built or substantially improved for sale or lease; sale or lease within one year is presumed to violate the exemption.

    commercial-building cost cap: <= 75000 USD (Owner-builder exemption.)

    “I may also build or improve a commercial building if the costs do not exceed $75,000.”
  • Building code adoptedAdopted (with conditions)

    Construction inside Jupiter Island town limits.

    • The Town adopted the Florida Building Code as amended from time to time.
    “The Florida Building Code, as amended from time to time, is adopted by reference. Any reference in the Florida Building Code or Florida Statutes to the duties of a certain official shall be deemed to be a reference to the official in the town whose duties correspond to those of the named official.”
  • InspectionsRequired

    Permitted construction inside Jupiter Island town limits.

    • The permit application states that a permit is considered suspended or abandoned if it does not pass an inspection within 180 days.

    inspection inactivity period: 180 days (Permit considered suspended or abandoned if no inspection is passed.)

    “does not pass an inspection within 180 days.”
  • Local zoningPresent (with conditions)

    Land inside Jupiter Island town limits.

    • The adopted Land Development Regulations and zoning map control parcel-specific district requirements.
    “town not be comprehensively zoned and regulated.”
  • Building heightSpecified

    Buildings in the A-80 District.

    • Maximum is two stories.

    maximum stories: <= 2 stories

    “C. Building height. The height of any building shall not exceed two stories.”
    5 more reviewed findings on this topic
    • Specified — Buildings in the D-25 District.
      “C. Building height. The height of any building shall not exceed two stories.”
    • Specified — Buildings in the C-35 District.
      “C. Building height. The height of any building shall not exceed two stories.”
    • Specified — Buildings in the E-12 District.
      “The height of any building shall not exceed two stories.”
    • Specified — Buildings in the F-15 District.
      “The height of any building shall not exceed two stories.”
    • Specified — Buildings in the G-35 District.
      “The height of any building shall not exceed two stories.”
  • Accessory dwellingsLimited

    Accessory buildings used for living quarters in the B-40 District inside Jupiter Island town.

    • No more than two accessory buildings for living quarters are permitted.
    • Accessory uses must be customarily and typically incidental to a single-family detached dwelling, involve no business activity, and comply with district regulations.
    “No more than two accessory buildings for living quarters shall be permitted.”
  • Subdividing landRegulated (with conditions)

    Plat and replat requests inside Jupiter Island town limits.

    • Specific plat/replat standards and approval procedures were not extracted from Ordinance 413.
    “Designating Administrative Authority for Reviewing Plat and Replat Requests”
  • Driveway accessLimited

    Driveways proposed inside Jupiter Island town limits.

    • Administrative approval applies when a driveway is more than eight feet from side and rear lot lines in A-80, B-40, and G-35 Districts, or more than three feet in all other zoning districts.

    side and rear lot-line distance: > 8 feet (A-80, B-40, and G-35 Districts.) · side and rear lot-line distance: > 3 feet (All other zoning districts.)

    “Driveways which are more than eight feet from side and rear lot lines”
  • Building in a floodplainRequired

    Development wholly or partly within a flood hazard area inside Jupiter Island town limits.

    • Applicant must apply to the Floodplain Administrator and Building Official if applicable, obtain permits and approvals, and satisfy the ordinance and other applicable codes and regulations.
    “shall obtain the required permit(s) and approval(s).”
  • Permit feesPublished (with conditions)

    Building permits issued by the Jupiter Island Building Department.

    • Florida surcharge fee is additional.
    • The Town’s permit application identifies a $25 minimum fee.

    permit fee: 2 percent of total job/construction value (Minimum $25; Florida surcharge fee additional.) · minimum permit fee: >= 25 USD (Per current Town permit application.)

    “Total Job / Construction Value $____________ X .02 (2.0%) = Permit Fee of $________ ($25.00 minimum)”
  • Permit processPublished (with conditions)

    Building-permit applications inside Jupiter Island town limits.

    • The Town publishes its Building Permit Application, revisions, notice of commencement, owner-builder affidavit, and CO/CC checklist on its permit page.
    • No work or installation may commence before permit issuance.
    “Here you will find frequently used Building Department forms such as Permit Applications, Permit Revisions, and Notice of Commencement.”

Rules another office applies inside Town of Jupiter Island

Town of Jupiter Island does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Minimum lot sizeDistrict specific (with conditions)

    B-40 1-Acre Estate Residential District parcels inside Jupiter Island town limits.

    • District development standards apply.

    minimum lot area: 1 acre (B-40 District.)

    “Minimum lot area. The minimum lot area is one acres.”
  • Who permits septicState (with conditions)

    Onsite sewage treatment and disposal systems inside Jupiter Island town limits.

    • The Town’s floodplain ordinance lists Florida Department of Health permitting as another permit that must be obtained before a floodplain development permit or building permit is issued.
    “Florida Department of Health for onsite sewage treatment and disposal systems; section 381.0065, F.S. and Chapter 64E-6, F.A.C.”
  • Septic permitRequired

    Onsite sewage treatment and disposal systems associated with floodplain development or building permits inside Jupiter Island town limits.

    • Other applicable permits, including Florida Department of Health permits for onsite sewage systems, must be obtained before floodplain development or building permits are issued.
    “Floodplain development permits and building permits shall include a condition that all other applicable state or federal codes or regulations must be satisfied, and permits must be obtained before a flood plain development permit or building permit is issued, including but not limited to the following:”
  • Septic inspectionLimited

    CO/CC requests involving a septic system inside Jupiter Island town limits.

    • The published Town CO/CC checklist calls for a septic-system final inspection and Health Department permit number.
    “Septic System Final Inspection Health Dept. Permit”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of Jupiter Island or Martin County directly.

  • Certificate of occupancy — Certificate of occupancy or certificate of completion for construction inside Jupiter Island town limits.
  • Minimum dwelling size — Dwellings inside Jupiter Island town limits.
  • Camping on your land — Temporary camping on private land inside Jupiter Island town limits.
  • Tiny homes — Tiny-home occupancy inside Jupiter Island town limits.
  • Manufactured homes — Manufactured-home occupancy inside Jupiter Island town limits.
5 more unanswered
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • 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 Town of Jupiter Island publishes no rule on the point, not that none exists. Martin County’s page lists the county offices to call.

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