In short
- Each lot keeps its own deck area limit. A shared dock never pools the two.
- A boat may reach past the shared line, but not beyond the outer ends of both lots together.
- The docks must be connected. A captain's walk does not count as a connection.
- No permit until the agreement is signed and recorded in the Lee County records.
On this page
- How the check works
- What a joint use agreement changes and what it does not
- Deck area limits for two lots sharing a dock
- What the agreement must contain
- Where the code text leaves room
- What the numbers do not cover
- Questions to ask your dock builder and your neighbor
- Next step: get a written quote
- Sources
- Frequently asked questions
This joint dock rules calculator is for Cape Coral neighbors who are thinking about building one dock that two waterfront lots share, and want to know what the city allows before they ask a builder to draw it. Enter both frontages, the canal width and the deck area planned on each side, and it applies Land Development Code sections 5.4.3.B and 5.4.4 to show where each lot stands. It uses code text only, with no prices. For the limit on a single lot, see the dock size limit calculator, and for how far from the property line a dock must sit, the dock side setback calculator.
En español: calculadora de reglas de muelle compartido en Cape Coral
| Check | Yours | Result |
|---|
Example: lots with 60 ft and 50 ft of frontage on an 80 ft canal, 400 and 200 sq ft of deck planned, a 65 ft boat on lot A and an agreement not started. Illustrative numbers, not a recommendation.
How the check works
- Enter both frontages.
Use the length of each lot along the seawall. Lot A is yours.
- Enter the canal width.
The reach is a quarter of it, capped at 40 ft. It sets both lots' limits.
- Enter the deck area on each side.
Split the drawing at the property line and read each part in square feet.
- Say how the docks join, and add the boat.
The docks must be connected. A boat length is optional.
- Pick where the agreement stands.
The tool shows what is still left before the city can issue a permit.
What a joint use agreement changes and what it does not
| Item | Rule | Code section |
|---|---|---|
| Boundaries and offsets | May be adjusted by a written joint use agreement | 5.4.4 |
| Connection | The improvements must be connected; a captain's walk does not count | 5.4.4 |
| Deck area | Each lot keeps its own maximum; areas may not be combined | 5.4.3.B, 5.4.4 |
| Boat or canopy | May pass the shared line, not the outer ends of both lots | 5.4.4 |
| Permit | Not issued until the executed agreement is recorded | 5.4.4, item H |
Deck area limits for two lots sharing a dock
| Frontages (ft) | Lot A | Lot B | Together |
|---|---|---|---|
| 40 + 40 | 200 | 200 | 400 |
| 50 + 50 | 130-260 | 130-260 | 260-520 |
| 75 + 75 | 255-510 | 255-510 | 510-1,020 |
| 100 + 40 | 380-760 | 200 | 580-960 |
Square feet of deck allowed on regular canal lots, 80 ft wide canal. Lots over 40 ft show the stricter printed-formula figure first, then the written-rule figure (see the dock size limit calculator). Together is just the two limits added up: it is what a pooled number would look like, and the code does not allow it to be used that way.
What the agreement must contain
| Item | What it must include |
|---|---|
| A | Name and current home address of both owners |
| B | The waterway, each parcel by legal description and STRAP number, and a signed and sealed survey |
| C | A drawing of the dock with its design, dimensions and where it projects from each lot |
| D | The access easements, by legal description, irrevocable without the city's consent |
| E | Who builds and maintains what. The city can still enforce against either owner |
| F | A statement that both follow federal, state and local rules |
| G | It runs with the land and cannot be rescinded or amended without the city's consent |
| H | Recorded in the Lee County public records at the owners' expense; no permit before that |
| I | A draft sent first to the Community Development Director |
Summarized from section 5.4.4 for planning. The city's own wording governs, and an attorney drafts the agreement; we do not.
Where the code text leaves room
The code says the boundaries and offsets may be adjusted, but not by how much, so we do not calculate a new setback; ask the permit office how a shared dock is measured from the outer property lines. It also does not say how a deck is split between two lots when it crosses the line, so we ask you to split the drawing at the property line, as we read it. Whether a boat on a lift counts as secured to the dock is a question for the city.
What the numbers do not cover
Passing these checks does not mean a permit. Side offsets, the open navigable water rule, the reach limit for your lot type and the building permit are separate checks, and the permit reviewer decides. Corner, canal-end and lake lots have their own rules in section 5.4.3. The permit steps are in the dock and boat lift permit checklist.
Questions to ask your dock builder and your neighbor
- What is the deck area on each side of the line? Ask for it in square feet, split at the property line.
- How are the docks connected? A captain's walk does not count, so ask what joins them.
- Who pays for and fixes what? The agreement has to say, and it binds both owners and later buyers.
- Who writes the agreement? The city does not draft it for you; ask an attorney.
- How do I choose a builder? See choosing a seawall contractor.
Next step: get a written quote
This tool checks numbers, not the job. We are a referral service, not a contractor; we connect visitors with independent local providers. Use the form below to ask independent local seawall and dock contractors for a written quote, and ask each to state the deck area on each lot and how the docks are joined.
Sources
- City of Cape Coral Land Development Code, section 5.4.4 (joint marine improvements), pages 159 and 160; and section 5.4.3.B (maximum dock surface area), page 143.
Numbers are the limits written in the city code, applied to the figures you enter. The city can amend its code, and the permit reviewer decides. This tool is not a permit determination, legal advice or an engineering review.
Frequently asked questions
Can two neighbors in Cape Coral share one dock?
Yes. Section 5.4.4 of the Land Development Code lets owners of adjoining waterfront parcels adjust their abutting marine improvement area boundaries and offsets with a written joint use agreement, as long as the marine improvements are connected. A captain's walk does not count as a connection.
Does a shared dock allow more deck area?
No. The code says the maximum area allowed for each parcel may not be combined or modified in any way to increase it for either parcel. Each lot keeps its own limit from section 5.4.3.B, so a shared dock can move the boundary and offsets, but it cannot move deck area from one lot to the other.
Can a boat stick out past the property line on a joint dock?
A vessel or boat canopy secured to a joint marine improvement may extend beyond the end of one parcel at the point where it meets the other parcel. No part of the vessel may extend beyond the outer ends of the water frontage of the two parcels together, except as section 5.4.3.A.8 provides.
What must a joint use agreement include?
Names and home addresses, the waterway, legal descriptions, STRAP numbers and a signed and sealed survey, a drawing of the dock, the access easements, who builds and maintains what, a statement that both owners follow federal, state and local rules, and wording that it runs with the land and cannot be changed without the city's consent. Both owners record it in the Lee County public records at their own expense.
When can the permit be issued for a joint dock?
Not until the city has a copy of the fully executed agreement and evidence that it was recorded. Before signing, the owners send a draft to the Community Development Director for review and comment.