📞 (561) 671-0155 | FL Certified General Contractor · CGC1541355 | Palm Beach · Broward · Martin · St. Lucie
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Residential · Additions

Additions, New Space That Belongs to the House.

More square footage that integrates with the existing home — structurally sound and visually seamless.

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Why Keystone for Additions

A good addition shouldn't look added on. We tie new space into the existing home structurally and visually so it reads as part of the original house.

Challenges We Handle

What an Addition Involves

Structural Tie-In
New framing and foundation joined to the existing structure correctly.
Seamless Match
Rooflines, finishes, and details matched so it doesn't look bolted on.
Systems Extension
HVAC, plumbing, and electrical extended to serve the new space.
Permits & Setbacks
Zoning, setbacks, and permitting handled before we build.
Weather Protection
The existing home kept dry and secure while the addition goes up.
Clean Handover
A finished addition and a walkthrough you sign off on.
How We Work

How We Work

1
Plan
Scope, budget, and timeline locked before work begins.
2
Pre-Construction
Permits, setbacks, and zoning cleared; trades scheduled.
3
Build
Daily oversight, structure and each phase inspected before the next.
4
Deliver
Final inspection, punch list, and a walkthrough you sign off on.
[ Add a completed addition — photo + one-line caption ]
Featured Project

Featured Addition

[ Add a completed addition — photo + one-line caption ]

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Common Questions

What Homeowners Ask

What decides whether my addition is even allowed?
Zoning does — setbacks, lot coverage, and height limits set the envelope you can build within, and in some areas impervious-surface and drainage rules apply too. We confirm the addition fits those rules before design goes far.
How do you tie new construction into the existing home?
We match rooflines, foundation, and finishes so it reads as original, and bring the tie-in areas up to current code and wind requirements where the work triggers it.
Do you handle HOA and architectural review?
Yes. Additions often need architectural-review approval alongside the permit, and we manage both so they don't hold each other up.
Can we stay in the home during construction?
Often, yes. An addition can usually be built while you live in the existing house — we keep it weather-tight and secure and give you an honest read on the disruptive phases.

Adding On? Let's Make It Feel Original.

Tell us what you need more room for. We'll walk through scope, budget, and timeline.

Schedule a Consultation (561) 671-0155