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

December 3, 2021Portsmouth Community Garden

Portsmouth community garden to launch in 2022  … Read More …

July 26, 2021Ruth Blay Mural - Installed

In 1768, Ruth Blay, a 31-year-old teacher and seamstress from South Hampton, was tried, convicted, and publicly hanged for concealing the body of her illegitimate baby. Ruth Blay was the last woman executed in NH. Based on the book by Carolyn Marvin, "The Hanging of Ruth Blay" The mural was conceived and designed by: Terrence Parker. Drawing by: Carl Aichele Graphic Art by: DBG Design Mural donated by Kristen and Todd Adelman … Read More …

December 20, 2019The Kelp Wave

Terrence has been chosen to complete a sculpture at the Jenness Beach bathhouse. Read more about it here: https://www.seacoastonline.com/news/20191212/music-hall-arch-designer-picked-for-jenness-beach-sculpture … Read More …