Need more space? Our home addition experts design and build seamless expansions that look and feel like they've always been part of your home — handling every step from permits to final walkthrough.
Moving is expensive, stressful, and disruptive. A well-designed home addition gives you the space you need while staying in the neighborhood you love. Cliffbrook Construction specializes in seamless additions that integrate perfectly with your existing home's architecture, style, and structure.
We manage every aspect — architectural planning, permits, engineering, foundation, framing, MEP (mechanical, electrical, plumbing), insulation, drywall, and all finishes. You get one team, one contract, and zero headaches.
Whatever space you need, we have the expertise to build it — beautifully and seamlessly.
Growing demand in DC Metro. Private bedroom, bathroom, kitchenette, and living space — perfect for aging parents or rental income.
▲ Highest Demand in DC MetroAdd a bedroom, home office, playroom, or flex space. Designed to match your home's existing architecture perfectly.
▲ Most Popular Addition TypeDouble your living space without expanding your footprint. Add a full second floor with bedrooms, bathrooms, and bonus rooms.
▲ Maximum Space GainBring the outdoors in with a stunning sunroom or screened porch. Year-round enjoyment and added living space.
▲ Great for EntertainingTransform your unused garage into a home office, studio, guest suite, or living space. High value, minimal disruption.
▲ Cost-Effective OptionExpand a single room — often the kitchen or master bedroom — without a full addition. Perfect for targeted space needs.
▲ Targeted & AffordableStructural foundation work and expert framing for any addition type. Built to last with Army Corps quality standards.
▲ Structural ExpertiseA simple, transparent process from first call to final walkthrough.
We visit your home, understand your needs, and assess the possibilities. No cost, no obligation.
Our team creates detailed plans and handles all permits in DC Metro and Maryland.
Our licensed in-house team builds your addition with precision and regular photo updates.
We review every detail together. Your addition isn't complete until you're 100% satisfied.



Since 2021, delivering exceptional home additions with our proven 3-phase quality control process.
Fully licensed, insured and bonded. Every addition is fully protected and code-compliant.
Our 3-phase quality control process ensures structural integrity and finish quality on every addition.
Detailed written estimates. No hidden fees, ever. Flexible payment options available.
We handle every permit, inspection, and approval in DC Metro and Maryland — you don't lift a finger.
We proudly serve homeowners across Washington D.C. and Montgomery County, Maryland.