Line Arch Design

Accessory Dwelling Units (ADU)

Complete design and construction documents for accessory dwelling units: detached units, attached additions, and garage conversions.

Get In TouchCall (407) 300-7744
White barndominium with a black gambrel roof, wood decks on two sides, and an exterior stair.
Detached ADUVenice, FL01
Line Arch Design exterior elevations of the same detached building, front, right, back, and left, with the gambrel roof, decks, and floor, ceiling, and roof heights marked.
ElevationsVenice, FL04
Unit types
Detached, attached, and garage conversions
First step
Confirm what your lot allows
Delivered
Architectural, structural, and MEP documents

What ADU Design Covers

The first question with an ADU is whether your lot allows one.

Rules vary widely between Florida municipalities: maximum unit size, setbacks, lot coverage, height, parking, utility connections, and in some jurisdictions owner-occupancy requirements. We confirm what's permitted on your specific property before design begins, so you're not paying for a project the city won't approve. From there the scope covers floor plans, elevations, sections, details, structural, and MEP, including the utility connections and separations the unit requires, coordinated across all disciplines and compliant with Florida Building Code and local requirements.

One Detached Unit, the Complete Set

A two-story building we designed for a lot in Venice, Florida, behind an existing home on a canal: a garage on the first floor and a game room, bedroom, and bathroom on the second. Its permit set ran to 17 sheets:

  1. 01Cover sheet with 3D renderings, the applicable codes, and the drawing index
  2. 02Floor plans for both levels, with notes and full dimensions
  3. 03Door and window schedules with impact-rated products
  4. 04Exterior elevations with floor, ceiling, and roof heights
  5. 05Roof plan and roof framing plan
  6. 06Foundation plan, foundation details, and the lintel and dowel plan
  7. 07Electrical and plumbing plans with riser diagrams
  8. 08Construction details and general notes
  9. 09Site plan locating the building against the property lines and the existing home

The renderings show the owner what the unit will look like. The other sheets are what the building department reviews and what the contractor prices and builds from.

Side of a barndominium with a wood exterior stair rising to a second-floor deck.
Rendering01
Line Arch Design floor plans of a detached two-story building in Venice, Florida: a garage on the first floor and a game room, bedroom, walk-in closet, and bathroom on the second, with an exterior stair to the balcony.
Floor plans02
Line Arch Design site plan locating the proposed detached building on a canal-front lot, dimensioned to the property lines and the existing one-story home.
Site plan09
Gable end of a barndominium with a black garage door and a single window above.
Rear, rendered04
Single-story flat-roof home with white stucco, a stone-clad wing, a wood entry door, and a front garage.

Start Your ADU

Send the property address and what you want the unit to do. We will confirm what your lot allows before quoting the drawings.

Get In TouchCall (407) 300-7744