Landis is now bringing award-winning design-build expertise to Annapolis

Lor
Featured Portfolio

Chevy Chase Renewal and Expansion

Summary

Project Overview

This project added a two-story rear addition to an older home in Chevy Chase, Washington, D.C., near Rock Creek Park, giving the family a new open kitchen and great room on the first floor and a primary suite on the second. Landis worked with the homeowners from initial schematic design through DC permitting and construction to weave the new addition into the existing house so it reads as one continuous home rather than a box bolted onto the back.

What Made This Project Hard

  • The house's brick foundation was built before current codes, so connecting a new two-story addition to it meant temporarily propping up the existing foundation while new footings were poured and tied in. That also meant dealing with water: the new foundation walls needed a waterproofing layer, a sump pump, and a drain system to keep the crawl space dry, a common issue for older homes near Rock Creek Park.
  • To get from the old second floor into the new primary suite, Landis reworked the existing rear bedrooms so there was a clear, code-approved path between them, all without changing how the house looks from the street. The new roof also had to blend with the old one, so the team worked to make the addition look like it was always part of the house.

How We Solved It

Landis started with a measured survey and Schematic Design, presenting the homeowners with a real base budget range before they decided on the optional scope. In Design Development, a structural engineer designed the new foundation system and the temporary shoring plan needed to safely demolish the existing rooms without compromising the rest of the house. Finally, a new heat pump system was added, new hardwood flooring was installed, and the existing hardwood throughout the rest of the house was refinished to match, so the addition doesn't read as a separate project glued onto the original home.

FAQS

How much does a two-story addition cost in Chevy Chase, Washington, D.C.?
How long does a two-story addition take to build in D.C.?
Can I add a second story to my house without changing the roofline?
Will an addition affect my heating and cooling system?

Start the Conversation.

Discuss your project needs with our award-winning team, designers and architects.