Stock or custom ADU plans: which approach fits your Atlanta property?

Stock ADU plans can be a useful way to explore layouts and understand what fits inside a smaller dwelling. A custom design begins with your particular property and goals. Either way, a floor plan still has to connect to the site, the intended use, and the requirements that apply where you are building.

Before choosing an approach, compare what you are actually purchasing and what work remains afterward.

What a stock plan can offer

A stock plan is a predesigned starting point. Its layout and basic form are already developed, which can help you make initial decisions. If it suits your needs and the site, it may reduce some early design work.

The package varies by seller. Review the drawings included, the permitted use of the plan, modification rights, and whether changes must be made by the original provider. Do not assume the price includes local adaptation, a site plan, engineering, or assistance through the permit process.

What custom planning changes

Custom work can begin with the way you want to live and the conditions of the property. Access, privacy, light, storage, circulation, and the relationship to the main home become part of the design conversation.

That flexibility can be useful when a site is constrained or an existing building must be adapted. It also means decisions must be made and documented. A custom process needs a clear scope, feedback schedule, and revision agreement.

Compare the same finished scope

For either approach, ask who will resolve the site and foundation information, existing conditions if relevant, structural and building-system requirements, and submission documents. Ask who handles revisions requested by the owner or reviewing authority.

Also compare the design detail that supports construction pricing. A plan may show a kitchen without identifying the cabinets, fixtures, and finish decisions you expect. If those services matter to your project, include them in the comparison.

The total planning budget may include the original plan purchase, adaptation, additional design, consultant services, and submission support. Custom planning may combine some of those tasks under one proposal and leave others separate. Put the same deliverables beside each other before comparing totals.

When to pause before purchasing

Pause if no one has checked whether the proposed use is allowed at the property, the layout depends on an unverified dimension, or a site constraint could change the building’s footprint. Confirm those issues first so you are not committing to a layout that has to change fundamentally.

If you already own plans, bring them to the conversation. Confirm that you have the right to use and modify them, and be prepared for the project team to review the scope before agreeing to adapt them.

Choose the process that makes the next step clearer

Delano Designs focuses on custom residential design and planning. We can discuss your goals and the documentation your project may need, then identify whether there is a suitable scope for us to provide.

Before you buy or adapt an ADU plan, tell us about the property and your intended use.