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 News & Announcements

November 20, 2014One-of-a-Kind Wall Design Completed

"I haven't seen anything like this since I left England. I feel like I am back in the English Countryside." As the winter season approaches, one of terra firma's on-going projects is progressing steadily. Terra firma's design of a unique brick garden wall that frames the front yard perennial beds for this seacoast residence has come to completion. … Read More …

November 12, 2014Terra Firma Relocates!

Terra firma landscape architecture has moved into a new office in Portsmouth. We are now at 163A Court Street. Come by and see our new space, now located closer to Downtown. … Read More …

October 31, 2014PechaKucha 11/5/14

Terrence Parker is speaking at Seacoast Repertory Theatre on Wednesday, Nov. 5 at 7:30 p.m.. … Read More …