Landscape Architecture · Est. 2011

We design with what the ground already knows.

Terra Firma reads a site's contours, drainage, and light before we draw a single line. The work that follows is slow, native, and built to be inherited by weather.

See the ground we've shaped →
The Practice

Three commitments, no exceptions.

Founded by two horticulturists and one architect
i.

Native first, ornamental second

Every planting plan starts with what already survives on the site without irrigation. Ornamentals are the last 10%, never the first 90%.

ii.

Grade before you draw

We walk a site through a full season before proposing contour changes. Water tells you where a garden wants to go long before a client does.

iii.

Design for the fortieth year

A canopy tree planted today is a gift to a client we'll never meet. We draw plans that improve as they age, not ones that peak on install day.

Selected Ground

Four sites, four grades.

04 of 61 completed commissions

Scroll horizontally →

2023

Kestrel Ridge Residence

A hillside garden built around a single existing oak, terraced with dry-stacked fieldstone to hold the slope without a retaining wall in sight.

Sonoma County, CA
2022

Willow Creek Commons

A stormwater bioswale disguised as a public meadow — three acres of native grass that quietly manages a 100-year flood event for the block.

Portland, OR
2021

Almendra Courtyard Vineyard

A tasting-room courtyard set inside a working vine block, graded so every row drains toward a single collection cistern under the terrace.

Paso Robles, CA
2020

St. Aidan's Memorial Garden

A concentric meditation garden set into a former parking lot, with each ring planted to bloom in sequence across the liturgical calendar.

Halifax, NS
Reading the Land

Contour is the first draft of every plan.

Before soil, before species, we survey elevation change in half-meter intervals. The lines that come back tell us where water pools, where wind funnels, and where a garden will thrive without our help.

  • Survey & elevation model Week 1–2
  • Hydrology & drainage read Week 2–3
  • Contour-responsive massing Week 3–5
Site-Responsive Massing

Planting beds follow elevation, not the property line.

We mass planting by hydrozone rather than by aesthetic zone — the driest ridge and the wettest swale get entirely different palettes, even when they sit ten feet apart.

  • Native palette selection Week 5–7
  • Grading & drainage plan Week 7–9
  • Install & establishment Month 3–14
How We Work

A five-step process, rarely rushed.

Average engagement: 11 months, ground to bloom

Site listening

A season of walking the land in different weather before a single mark is made.

Survey & contour model

Half-meter elevation mapping and a hydrology read of every low point on site.

Concept massing

Hand-drawn contour studies showing where planting, hardscape, and grade change meet.

Grading & install

Earthwork first, always — the shape of the ground before a single plant enters it.

Establishment care

Two full growing seasons of monitored care before we consider a site finished.

Bring us the ground before you bring us the wish list.

We take on a limited number of commissions each year, chosen for sites where the land itself has something to say. Tell us about yours.

Start a conversation →
studio@terrafirma-land.com
+1 (707) 555-0142
4118 Ridge Loop, Sonoma County, CA