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 vision 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

March 27, 2019‘Hammer-Heads’ make Portsmouth public art history

Back in November, the team working on the 'Working' sculpture at the Foundry Garage gathered to install the sculpture and make Porstmouth history as the first public art sculpture installation as part of the City's Percent for the Arts Ordinance. Check out the article on Seacoast Online: http://www.seacoastonline.com/news/20181120/hammer-heads-make-portsmouth-public-art-history … Read More …

August 29, 2018Dondero Forest Classroom and Nature Playground - Demolition Begins

The playground and forest classroom designed by terra firma is pushing forward. Renaud Industries bagan demolition last week, and did the entire job as a gift to the community and school. Read the Seacoast Online article here: http://www.seacoastonline.com/news/20180824/forest-classroom-coming-to-portsmouth-school … Read More …

August 29, 2018Terrence wins Citizen of the Year!

Portsmouth's Chamber of Commerce awarded Terrence the 'Citizen of the Year' award at the Street.life! event and celebration that they held last month. Read the article here: http://www.seacoastonline.com/news/20180802/streetlife-event-celebrates-portsmouths-west-end-arts … Read More …