Uses of ADU/Plans

Custom Coastal Designs, LLC is for individuals, builders, developers, land planners and engineers.
We can assist you with adding to your existing home or building a new home on your lot the fits your needs now and has the ability to grow with your changing family.
Custom Coastal Designs, LLC, formerly House in a Box, provides structurally engineered architectural plans that can be built individually or in combination. You choose what works best for you.

Work with us and let us walk you through the process!

How do our clients use our plans?

  • Free standing additions, breezeway connections, cottages, carriage houses, garage apartments.
  • Primary residence that allows for unit combination/addition as needed and finances permit
  • Home offices or guest/staff quarters
  • Accessory garage with living space included
  • Multi-generational living situations such as In-Law Suites with privacy.
  • A “Value Added Structure”
  • Replacements for knock downs
  • Tight urban or infill lots
  • Environmentally friendly footprints

Call us today and design the home the fits you!