Coastal Custom Homes in Long Beach, 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.

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Built for Long Beach Living

Thornhill Construction builds homes designed for the Mississippi Gulf Coast lifestyle. Whether you are creating a full-time residence, vacation home, beach house, or investment property in Long Beach, our team helps guide the process from the first conversation to the final walkthrough.

With more than 20 years of local experience, we understand how important it is to balance design, durability, budget, and clear communication throughout the home-building process.

Ways to Build

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Coastal Collection

I want to make the most of my investment
The Coastal Collection
Less Guesswork. Still entirely yours.

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.

Proven Plans · Personalized Design · Greater Investment Control
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Signature Series

I already have a vision
The Signature Series
Bring us your vision. We'll build it with you

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.

Your Plans or Ours · Fully Custom · Collaborative Design
What We’veAccomplished
Years In Business
10 +
Homes Built
300 +
Google Reviews
70 +
We are so impressed with the dedication Thornhill put into the job of creating a warm, peaceful home for not only my family but also the family of my husband’s sister. We have known that we wanted to have a weekend home in Bay St. Louis for …
Sharon P 1 year ago

Rated 4.9 out of 5 — 128 Google reviews

What to  Expect

Initial Consultation

We learn about your goals, Long Beach homesite, lifestyle needs, timeline, and budget expectations.

Planning & Feasibility

Our team reviews the property, local building considerations, design direction, and early project requirements.

Design & Budgeting

We help develop the floor plan, features, finishes, and budget so the project is clearly defined before construction.

Construction Phase

Your home is built with hands-on project coordination, quality control, and consistent updates.

Final Handover

We complete the walkthrough, address final details, and prepare you to settle into your new home.

Ready to Build?

Start planning your Gulf Coast home with a team that can guide you from first ideas to final walkthrough.

Contact Our Team

Reach out if you have questions or are ready to start planning your Long Beach home.

    Project  stages

    01

    Foundation

    Site excavation • Formwork • Subpilings, footings, concrete & breakaway slab pour

    4-6 weeks
    02

    Framing

    Erect all timber/steel frames • Brace roof issues

    6-8 weeks
    03

    Dry In

    Structure weather sealed • Windows Installed • External doors

    2-3 weeks
    04

    Mechanical

    Plumbing rough-in • HVAC rough-in • Electrical rough-in

    8 weeks
    05

    Exterior

    Siding installation • Roofing • Railing

    6-8 weeks
    06

    Insulation

    Insulation • Drywall

    10-12 Days
    07

    Int. Finishes

    Painting • Flooring • Trim & millwork • Cabinets & counters

    6-8 weeks
    08

    Trim & Fixtures

    Interior hardware • Closets • Electrical fixtures/appliances

    10 Days
    09

    Final Touches

    Cleaning • Final inspections • Walk-through

    3 weeks
    10

    Handover

    Inspections • Occupancy • Move-in

    2 weeks