Looking for an addition contractor in Bay Harbor Islands, FL? Describe your project once and up to three addition contractors who work in Bay Harbor Islands and Miami-Dade County get back to you with a quote. It's free and there is no obligation.
Bay Harbor Islands is home to about 5,937 people (2024 Census Bureau estimate), a stable community (+0.3% since 2020). With 14,973 people per sq mi, it is a densely built-up area. Growing families here often add space instead of moving.
Bay Harbor Islands at a glance
- Population (Census Bureau estimate, 2024)
- 5,937 (+0.3% since 2020)
- Rank in Florida
- 216th of 411 cities and towns
- Land area
- 0.4 sq mi
- Population density
- 14,973 people per sq mi (densely built-up)
- Type
- Town (Bay Harbor Islands town)
- Main county
- Miami-Dade County
What to check before hiring in Bay Harbor Islands
- Zoning: check Bay Harbor Islands's setbacks, lot coverage and height limits first.
- License and permit: in Florida, additions are built by licensed contractors under a permit.
- Structure: second stories need an engineer to check the existing house.
- Price drivers: size, foundation, roof tie-in, plumbing and finishes.
Useful official resources
-
ICC: International Code Council
Official information and guidance.
-
NAHB
Official information and guidance.
Services available in Bay Harbor Islands
-
Room addition
Ground-floor addition with foundation, framing, roof and finishes.
-
Second-story addition
New floor over the existing house, with structural engineering.
Frequently asked questions in Bay Harbor Islands
How much does an addition cost in Bay Harbor Islands, FL?
It depends on size, foundation and finishes. Describe your project: contractors who serve Bay Harbor Islands reply with a quote.
How long does it take?
Often a few months, plus design and permits.
Does an addition raise property taxes?
Usually, since it increases the assessed value.
Which addition contractors will contact me?
Up to three independent addition contractors who serve Bay Harbor Islands and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.