ADUs & Home Additions
ADU Feasibility: What to Review First
A practical first look at site, access, utilities, zoning, design and budget.
The honest answer
A legal right to build an ADU does not guarantee that your lot can support your preferred size, access plan, utility route, or budget.
If you are worried about investing in plans and permits only to learn that the site, structure, utilities, or budget cannot support the project, that concern is reasonable. Remodeling is expensive, disruptive, and hard to judge once important work is covered. You deserve clear proof before you approve the next step.
What you are really deciding
A practical first look at site, access, utilities, zoning, design and budget. That means you need to settle more than appearance. The decision must work with the room, adjoining materials, manufacturer requirements, and the contractor's installation plan.
For this topic, the details that deserve a written answer are A practical first look at site, access, utilities, zoning, design, and budget. If one of those details is still described as “we will figure it out later,” ask what work depends on it and who pays if the late answer forces rework.
Plain-English technical note
A site constraint is a physical condition that limits construction, such as access width, slope, utility location, or room for equipment. It is the difference between a design that fits on paper and one that can actually be built.
Where budgets and schedules go wrong
New square footage carries costs that are easy to overlook: design, engineering, utility work, excavation, structure, weather protection, and connections to the existing home.
How to keep this choice from becoming a change order
A practical first look at site, access, utilities, zoning, design and budget. The most common budget surprise is not always a costly product; it is a late answer that forces finished work to be opened, moved, or reordered.
Ask the contractor to list the decisions that depend on adu feasibility. Confirm dimensions and existing conditions before ordering, then identify who pays if the approved information proves inaccurate.
Need project-specific guidance?
Have questions about how this applies to your home?
Tell us what you are planning or what has you concerned. The consultation form also lets you upload photos, plans, or other project details so we can understand your question before contacting you.
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