BEFORE YOU START AN ADU, GARAGE CONVERSION, OR EXTERIOR REMODEL: WHAT TO CHECK FIRST
BEFORE YOU START AN ADU, GARAGE CONVERSION, OR EXTERIOR REMODEL: WHAT TO CHECK FIRST
A new ADU, converted garage, or updated exterior can completely change the way a property looks and functions. But successful remodeling does not begin with paint colors, siding, flooring, or fixtures.
It begins with understanding what you are working with.
Before making design decisions, homeowners should take a closer look at the existing structure, layout, access, utilities, permits, windows, doors, drainage, and overall condition of the property. Identifying these items early can help create a more realistic project scope and reduce surprises once construction begins.
Whether you are planning an ADU, converting an existing garage, or improving the exterior of your home, here are some of the most important things to evaluate first.
START WITH THE EXISTING STRUCTURE
One of the first questions should be simple:
Is the existing structure ready for the work you want to do?
With a garage conversion or remodel, the walls and roof may look fine from the outside, but there can be conditions that are not immediately visible.
A contractor may need to evaluate areas such as:
Foundation and slab condition
Framing
Roof condition
Existing water damage or moisture
Wall assemblies
Previous repairs or alterations
Exterior drainage
General structural condition
Finding an existing problem after new finishes have already been installed can make a project much more complicated.
This is why the condition of the building should come before cosmetic selections.
PLAN THE LAYOUT AROUND HOW THE SPACE WILL ACTUALLY BE USED
ADUs often involve making a relatively small area work like a complete home.
Every square foot matters.
Before construction begins, think carefully about where the major spaces will go, including the kitchen, bathroom, bedroom or sleeping area, storage, living space, and entrances.
A good layout should consider more than appearance. It should also consider movement through the space.
Ask questions such as:
Will the kitchen feel cramped?
Is there enough storage?
Can doors open without interfering with furniture?
Does the bathroom placement make sense in relation to the plumbing?
Is there enough natural light?
Will the space feel private from the main house?
Changing the layout during construction can affect plumbing, electrical work, framing, cabinetry, flooring, and the overall schedule.
Getting the floor plan right early can save a lot of unnecessary changes later.
THINK ABOUT ACCESS BEFORE CONSTRUCTION STARTS
Access is especially important for detached ADUs, backyard structures, and garage conversions.
Construction crews need a practical way to move workers, equipment, debris, and building materials to and from the project area.
Homeowners should consider:
Side-yard access
Driveway access
Gates and fences
Existing landscaping
Nearby structures
Utility locations
Material delivery areas
Space for debris removal
Limited access does not necessarily mean the project cannot be completed. It simply means the construction plan may need to account for it from the beginning.
Access can also affect how the completed ADU functions. A separate entrance and a well-planned walkway can provide greater privacy and make the new living space feel more independent.
REVIEW WINDOWS AND DOORS EARLY
Windows and doors have a major impact on both the appearance and function of an ADU.
Their location can affect natural light, privacy, furniture placement, ventilation, and how the space connects with the exterior.
For example, adding a large window may look great on a rendering, but its location should also make sense with the interior layout.
Before finalizing the design, consider:
Window placement
Exterior door locations
Natural lighting
Privacy from neighboring properties
Interior furniture placement
Existing openings that may need modification
Energy efficiency
Overall exterior design
These decisions are much easier to coordinate during the planning stage than after framing or finish work has begun.
UNDERSTAND THE UTILITY PLAN
An ADU is more than an additional room. It needs the systems required to function as a comfortable living space.
Depending on the project, this may involve planning for:
Electrical service
Plumbing
Water supply
Drainage and sewer connections
Heating and cooling
Water heating
Kitchen appliances
Bathroom fixtures
Lighting and outlets
Existing garages were not always designed to support the same utilities as a residence.
That is why a garage conversion should be evaluated as a complete living space rather than simply a garage with drywall, flooring, and a bathroom added.
Planning utility locations early can also help determine where kitchens, bathrooms, mechanical equipment, and other major components should be placed.
LOOK AT MOISTURE, DRAINAGE, AND EXTERIOR PROTECTION
Exterior remodeling is not only about making a property look newer.
The exterior of a building also helps protect everything behind it.
When evaluating an existing property, pay attention to areas such as roofing, exterior walls, flashing, windows, doors, drainage, and signs of previous water intrusion.
Water should be directed away from the building rather than allowed to collect around walls or foundations.
For garage conversions, moisture around the existing slab or lower portions of the walls should also be evaluated before interior finishes are installed.
A beautiful finished space will not solve an underlying moisture problem.
DETERMINE THE PERMIT REQUIREMENTS BEFORE BUILDING
Permits and approvals should be part of the planning conversation early, not something considered after construction has already started.
The requirements can vary depending on the property, project scope, and local jurisdiction.
An ADU or garage conversion may involve plans and reviews related to areas such as:
Building
Electrical
Plumbing
Mechanical systems
Structural modifications
Energy requirements
Property layout
Utility work
Exterior remodeling can also require permits depending on the type and extent of work being completed.
Before starting construction, homeowners should understand what approvals apply to their specific project and make sure the proposed work is properly planned.
CREATE THE SCOPE BEFORE CHOOSING FINISHES
It is easy to begin a remodel by looking at flooring, cabinets, countertops, exterior colors, fixtures, or tile.
Those choices are important, but they should come later.
First determine:
What needs to be repaired?
What needs to be rebuilt?
What systems need to be added or upgraded?
What is the final layout?
What approvals are required?
What work is included in the project?
Once those questions have been answered, material selections become much easier.
You are no longer choosing finishes for an idea. You are choosing finishes for an actual construction plan.
PLAN THE EXTERIOR AS PART OF THE ENTIRE PROPERTY
When adding or remodeling an ADU, the goal should not simply be to create a separate structure that looks finished.
Ideally, the new space should feel intentional within the property.
Consider how the ADU relates to the existing home through:
Exterior colors
Roofing
Windows and doors
Siding or stucco
Walkways
Landscaping
Exterior lighting
Privacy
Outdoor living areas
Even when the ADU has its own design style, there should still be a clear relationship between the buildings and the surrounding property.
Good planning can make an addition feel like it belongs there rather than something that was added as an afterthought.
PLANNING FIRST CAN PREVENT PROBLEMS LATER
The visible finishes are usually the most exciting part of a remodel, but they are only one part of a successful project.
The work that happens before those finishes are installed often matters more.
For an ADU, garage conversion, or exterior remodel, start by understanding the condition of the property, developing the layout, reviewing utilities, planning access, checking permit requirements, and establishing a clear construction scope.
Then start choosing the finishes.
That approach gives you a much stronger foundation for the project and helps ensure the finished space is not only attractive, but also practical, durable, and properly planned.
PLANNING AN ADU OR GARAGE CONVERSION IN LOS ANGELES?
If you are considering an ADU, garage conversion, or exterior remodel, JMS Developers Inc. can help you evaluate the existing space, develop a clear project plan, and understand what needs to happen before construction begins.
JMS DEVELOPERS INC. | CSLB #1040625
📧 [email protected]
📞 (310) 263-8759
🌐 jmsdevelopersinc.com
