Building Communities from the Ground Up™
Three generations of residential land development expertise in Delaware
What We Do
From raw land to move-in ready communities — we handle every phase of residential land development.
Land Acquisition
We identify and secure prime parcels with development potential, handling due diligence from soil studies to zoning analysis.
Site Development
From grading and utilities to roads and stormwater management — we build the infrastructure communities need.
Community Planning
Thoughtful master planning that balances density, green space, and livability to create neighborhoods people love.
Featured Communities
Explore the neighborhoods we're bringing to life across Delaware.
Twin Masts at Lewes
Lewes, DE
84 Lots
Middle Creek Estates
Middletown, DE
120 Lots
Heritage Run
Dover, DE
56 Lots
Why Stonemark
Decades of experience. A family name on every project. Results that speak for themselves.
3rd Generation
Three generations of land development expertise, building on decades of Delaware knowledge.
Family-Owned
We answer to families, not shareholders. Every decision reflects our commitment to lasting communities.
Proven Track Record
Hundreds of lots developed across Delaware — on time, on budget, and built to last.
Local Expertise
Deep relationships with Delaware municipalities, utilities, and regulatory agencies.
Ready to Build Something Lasting?
Whether you're a landowner, municipality, or investor — let's talk about what's possible.
Start the Conversation