When design matters.

terra firma landscape architecture has been established in Portsmouth, NH and serving the Seacoast New Hampshire, Maine, and southern New England since 1993. We specialize in landscape architectural aspects of site design such as urban gathering spaces and parks, custom residential projects, commercial properties of all kinds, streetscapes as green infrastructure, garden design, playgrounds and schoolyards, and recently memorial design.

We believe that landscapes reflect the vison and values of those that inhabit them.

Recent Projects

Fire Pit with hand-carved boulder furniture – Seacoast NH residence

Furniture hand carved from boulders with fire pit. Seacoast NH residence.

Recent News & Announcements

February 17, 2016AIANH Award

McHenry Architecture earned an Honorable Mention Award for 3S Artspace from AIANH Excellence in Architecture Design Awards for 3S Artspace. Terra firma is proud to have worked on this project with the whole team, including Summit Engineering, and Wright-Ryan Construction. Congratulations to McHenry Architecture!  … Read More …

February 4, 2015The Being – 28 Years in the Making

Found, sculpted, and cast. The Being has been completed. See the video of the completed sculpture.  … Read More …

January 26, 2015Smuttynose Brewery wins AIANH People's Choice Award

PEOPLE'S CHOICE AWARDS Each year American Institute of Architects New Hampshire Chapter holds a People's Choice Awards program. The winners are selected from all of the submissions to the Design Awards program and are voted on through the AIANH website. 2015 commercial category winner: Smuttynose Brewing Company in Hampton. Project: Smuttynose Brewing Company, Hampton, NH Architect: McHenry Architecture Portsmouth, NH Construction Manager: Harvey Construction Corp., Bedfored, NH Landscape Architect: Terra Firma Landscape Architecture, Portsmouth, NH … Read More …