Coastal Custom Homes in Bay St. Louis, MS
Build your dream home on the Mississippi Gulf Coast with a team that understands coastal living, local building requirements, and the details that make a home feel truly personal.
From fully custom luxury homes to pre-priced coastal floor plans, Thornhill Construction helps you move from early ideas to a finished home.
Built forBay St. Louis Living
Thornhill Construction builds custom homes designed for the pace, style, and setting of life in Bay St. Louis. Whether you are planning a full-time residence, weekend retreat, beach house, or investment property, our team helps guide each step from concept to completion.
With more than 20 years of Mississippi Gulf Coast building experience, we understand the importance of smart planning, durable construction, and communication that keeps homeowners informed from start to finish.
Ways to Build
Coastal Collection
Choose from Thornhill’s thoughtfully designed Gulf Coast floor plans and personalize the home around the way you want to live.
It’s a more efficient path for homeowners who want to maintain greater control over their overall investment while still creating a home that feels distinctly their own.
Signature Series
Maybe you’ve been dreaming about your home for years. Maybe you already have architectural plans. Or maybe you simply know exactly what you want your Gulf Coast home to become.
The Signature Series gives you the freedom to bring that vision to Thornhill and create a home specifically around your property, lifestyle, and ideas.
Rated 4.9 out of 5 — 128 Google reviews
The PROCESS
Initial Consultation
We start by discussing your Bay St. Louis property, design goals, timeline, budget, and must-have features.
Planning & Feasibility
Our team evaluates key project details, including lot conditions, building requirements, and early design considerations.
Design & Budgeting
We refine your home design, selections, and budget so you can make informed decisions before construction begins.
Construction Phase
Your home is built with organized project management, consistent communication, and attention to craftsmanship.
Final Handover
We walk through the completed home with you, answer final questions, and prepare you for move-in.
Ready to Build?
Start planning your Gulf Coast home with a team that can guide you from first ideas to final walkthrough.
Let’s Get Started
Reach out if you have questions or are ready to start planning your Bay St. Louis home.