WHAT IS THE COST OF ADU OR HOME ADDITION
Home additions and ADU costs vary based on size, finishes, and site conditions (things like utility connections, foundation type, and property access all play a role). What we can tell you: we provide clear, detailed estimates up front. No surprise change orders. No "while we are here" upsells. Just an honest price for quality work.
The best way to get an accurate number is to talk with us about your specific property and what you have in mind.
About JAS Construction
what is an adu?
Accessory Dwelling Units (ADUs) — JAS Construction Group
Add Space. Add Value. Add Possibility.
An Accessory Dwelling Unit — also called a granny flat, in-law suite, or backyard cottage — is a self-contained living space built on the same property as your primary home. It has its own entrance, kitchen, bathroom, and sleeping area. Think of it as a second home, scaled to fit your needs and your property.
ADUs are one of the smartest investments a homeowner can make right now. They add usable square footage without the cost of buying new land. They add long-term property value. And they create flexibility: the same space that houses an aging parent today can become a rental unit, a home office, or guest quarters tomorrow.
At JAS Construction Group, we have been building home additions across Volusia County for over a decade. An ADU is a natural extension of what we do best — designing and building spaces that fit the way families actually live.
Every family's situation is different. Here are the most common reasons our clients choose to build an ADU:
7000 sq ft showroom
Visit Materials in Person at Creative Spaces. Choosing finishes from a website or a tiny sample swatch is hard. At our Deltona showroom, you can walk through full-scale kitchen and bath displays, touch countertop and cabinet samples, and see what different flooring options actually look like under real light. Bring your ideas, and we will help you turn them into a plan.
multi-generational living granny flat
Multi-Generational Living
Mom or Dad needs to be closer, but everyone still wants their own space. An ADU keeps family nearby while preserving privacy and independence for both households. Your parent gets a fully functional home with their own kitchen, bath, and entrance — and you get peace of mind knowing they are right next door, not across town.
rental income
Rental Income
An ADU can generate consistent monthly income, whether you rent it long-term or as a short-term vacation property. In Florida's growing communities, the demand for quality rental units is strong. Many of our clients offset a significant portion of their mortgage this way.
Room to Grow
Stay in your neighborhood with extra space. Our bedroom additions offer comfort for growing families. Whether it is the arrival of a new or older family member.
gUEST HOUSE GRANNY FLAT
Guest House or Granny Flat
Give out-of-town family and friends a comfortable, private place to stay — without giving up your own living room. An ADU means guests can come and go on their own schedule, with their own kitchen and bathroom, while still being steps away from the main house.
Home Office or Studio
Home Office or Studio
Need a dedicated workspace that is actually separate from home? An ADU makes an ideal office, art studio, music room, or workshop. No commute, but a real door you can close at the end of the day.
HOW CAN AN ADU BENEFIT YOUR FAMILY?
What Could an ADU Do for Your Family?
Every family's situation is different. Here are the most common reasons our clients choose to build an ADU:
Multi-Generational Living
Mom or Dad needs to be closer, but everyone still wants their own space. An ADU keeps family nearby while preserving privacy and independence for both households. Your parent gets a fully functional home with their own kitchen, bath, and entrance — and you get peace of mind knowing they are right next door, not across town.
