Landscape Lighting Design
The Plan Is the Product
A landscape lighting designer decides what gets lit, how brightly, at what color, and in what order the eye should find it. All of that happens before anyone opens a fixture catalog. Gemmell Outdoor Lighting designs every system on the property it will light, then installs and services what we design. Call (615) 914-4411 for a free design walk.
What a Landscape Lighting Designer Does
An installer's job is different: take a finished plan and execute it correctly in the ground. Both are real skills. Neither substitutes for the other, and a system built without the first step almost always tells on itself after dark.
Phil came to lighting out of landscape design and construction, better than a decade of it, and it is the reason a plan here starts in the dirt and works upward not down from a product line. That background is on our about page.
Layering
One layer of light, however well executed, reads flat. So a design gets separated out.
Canopy lighting sends light up into tree cover and gives a property depth it does not otherwise have after dark. Mid-level lighting picks out the one specimen shrub, the ornamental grass, the stone wall actually worth seeing. Which is to say it involves deciding that most of the planting is not the subject. Ground-level lighting handles paths and borders: low and even, more about footing and shape than drama.
How much of each a property needs is the actual design question, and the answer changes street to street. A wooded Leipers Fork lot with forty-year canopy can carry a design almost entirely on the top layer. A new Westhaven build is the inverted case: crisp elevations, planting three feet tall. There the building carries the design for a few years, and the drawing has to leave room for a landscape that will eventually take over some of the load. There is no ratio to apply. You get the answer by standing on the property after sundown. Examples of layered designs are on our portfolio page.
The Fixture Comes After the Decision
This is where kit projects go wrong, and it is an ordering problem rather than a quality problem. The fixture gets bought, then the placement gets bent to suit it.
We work the other way. Decide what the location needs first. A narrow beam up a tall straight trunk. Something much broader across a low spreading specimen. A well light sunk flush with the turf where a mower will pass over it. Then go and find the fixture built for that job.
Material is not a question about finish. It is a question about year five. We spec solid brass and copper over painted aluminum, because Middle Tennessee humidity and freeze-thaw cycles punish any coating. Brass takes on a patina and keeps working; painted aluminum chips, then corrodes from underneath the paint outward. That difference is invisible on install day and obvious in year five, which is exactly the worst time to discover it.
Dimming and Zoning
A design should account for how a property gets used, not just how it photographs in a single on-state. Dimming lets one system read bright for a party on the terrace and low for a Tuesday. Zoning splits the property into sections that switch independently, front facade, rear terrace, garden beds, so nobody is lighting an entire acre in order to sit outside on one part of it.
Both get built into the plan at the start. That is not a preference; the transformer sizing and the wire layout are genuinely different depending on whether zones run separately or share a circuit. Designed in from day one it costs very little. Added afterwards it usually means digging the run up again.
Warm White, and Light That Stays on the Property
Every system we design runs 2700–3000K. That range reads like moonlight rather than a filling station forecourt, and it is kind to the materials these houses are actually built from: brick, limestone, cedar, and green planting. Cooler light drains all four.
Full cutoff is the default too. Fixtures that put light down and onto the thing being lit, not sideways through a neighbor's bedroom window, and not up into a sky where it does nothing for anybody. Across most of our service area no ordinance requires this. We do it because it is the better-looking answer, and it has the side benefit of keeping a property clear wherever a jurisdiction does have lighting standards. See our dark-sky lighting guide.
What We Decline to Design
Design also means declining things. Uplighting every tree on a lot regardless of species, size or position. Running color-change on every fixture on the house. Matching a neighbor's brightness as a target. Part of what a homeowner is paying for is somebody willing to say which ideas will make a property look considered and which will make it look like a showroom floor. For lighting driven by the building rather than the planting, see architectural lighting; once a plan is signed off, our installation page covers what happens in the ground.
Questions, Answered
What does a designer do that an installer does not?
A designer decides the content of the system: what gets lit, at what brightness and color, and the order the eye should find it in, working from the property's planting and architecture. An installer takes that plan and puts it in the ground correctly: wire, transformer, fixture depth, aim.
We do both, but they are separate skills, and a system put in without the design step first usually shows it.
What color temperature do you design with?
2700–3000K warm white, on every system. That range reads as natural light, never as a commercial or clinical white, and it flatters the materials these houses are built from: brick, limestone, cedar and green planting. Anything cooler drains the color out of all four and leaves a facade looking washed instead of lit.
Is dimming and zoning part of the design or an add-on?
Part of the design, whenever how a family uses the property calls for it. It matters when it gets decided, because transformer sizing and wire layout differ depending on whether zones run independently or share a circuit. Built in at the start it adds very little to a project.
Retrofitted later it means opening the trench again to split what went in as a single circuit.
What is dark-sky lighting design, and do I need it?
Dark-sky design means full cutoff fixtures aimed down and onto the subject, instead of fixtures throwing light sideways or upward where it turns into glare or plain waste. Across most of our service area no ordinance requires it. We default to it because it looks better, and because light that stays on your property is light you paid for.
Our dark-sky lighting guide has the detail.
Why brass and copper instead of aluminum?
Middle Tennessee humidity and freeze-thaw cycles are hard on a painted finish. Paint chips, then the metal underneath corrodes outward from the chip. Brass and copper go the other way and build a patina over the same years. Nothing is failing when that happens; the metal is protecting itself.
They are the default spec on every design here, not an upgrade line halfway down a quote.
How many layers does my property need?
No formula, and it depends almost entirely on what is already growing there. A lot with mature hardwood canopy can carry most of a design on uplighting alone. A newer build with young planting leans on architectural lighting until the landscape catches up.
The mix gets decided on a walk of your own property after dark, which is also the point at which you find out what your trees actually look like lit.