After talking about composition in July - and taking a break from the blog in August - I keep coming back to one element that can completely change the experience of a home without adding a single square foot.
Light.
Most homeowners know they want a home filled with natural light. So they ask for big windows. More glass. An open floor plan.
But more windows don't necessarily create better light.
The orientation of the house matters. The depth of a room matters. The direction the light comes from matters. What that light strikes matters. Even the way light changes throughout the day and across the seasons matters.
Perhaps the real design question isn't, “How do we get more light into the house?” but, “What do we want the light to do?”
In this edition of Real Chats with AI, I want to explore something homeowners experience every day but may rarely think about: how architects actually design with daylight.
Q1. When a client tells you, “I want lots of natural light,” what do you hear that they may not actually be saying?
CT: When a client tells me they want plenty of natural light, I think they're actually asking for several things.
They're looking for a sense of openness and spaciousness. They want spaces that feel bright and well lit, but not overly exposed. And they're looking for a stronger visual connection between the interior and exterior—to see the landscape, the outdoor spaces, and the sky.
In many ways, they're also telling us what they don't want.
They don't want dark, enclosed rooms. They don’t want low ceilings and small, undersized windows.
Many traditional homes, particularly older Colonial homes, were designed as a series of cellular spaces. Ceilings were about eight feet tall. Windows were relatively small, often double-hung with divided lights, with sills thirty inches or more above the floor. The result can be rooms that feel separated not only from one another, but from the landscape around them.
The way we live has changed, and so have our expectations.
Today, clients are looking for a balance. They want spaces that feel open and airy, but at the same time they still want them to feel comfortable and cozy. Those ideas might sound contradictory, but I don't think they are.
A room can have wonderful natural light and a strong connection to the outdoors without feeling exposed or cavernous. It can feel expansive while still providing a sense of intimacy and enclosure.
That's really the balance we're trying to find.
Clients want openness and natural light. They want visual connectivity. They want to feel connected to the outdoors even when they're inside.
But that doesn't mean they want every room flooded with sunlight.
Nobody wants a sun-bleached room that's uncomfortable at certain times of the day.
So when someone tells me, “I want lots of natural light,” I don't necessarily hear, “I want lots of windows.”
I hear, “I want my home to feel open, bright, connected - and still feel like home.”
Those are very different design problems - and much more interesting ones.
AI: You make an interesting distinction between wanting more light and wanting a home that feels light, open, and connected.
I suspect many homeowners begin with a fairly simple equation: if I want more natural light, I need more—or bigger—windows.
But you've suggested that it isn't really about the amount of glass. It's about what the light is doing once it enters the home.
Q2. So what makes natural light good light - and why isn't more always better?
CT: Good natural light can be experienced in a number of different ways.
The orientation of the house - and of each individual room - matters tremendously.
Northern light, for example, is largely indirect. It's light reflected from the sky and surrounding landscape rather than direct sunlight entering the room. Because of that, it tends to remain relatively consistent throughout the day. As the sun rises, those spaces gradually brighten, remain fairly constant, and then begin to dim toward sunset.
There's something very comfortable about that consistency.
It also speaks to sustainability. A well-daylit home is a more sustainable home. If rooms receive enough natural daylight -whether ambient or direct - they can remain functional throughout much of the day without relying on artificial lighting.
Southern light is a very different experience.
That's where natural light can begin to add depth and movement to a space. Southern and southeastern or southwestern exposures can be much more dynamic because the sun is continually changing its relationship to the house.
But that light also has to be controlled.
We often incorporate shading devices to prevent spaces from becoming overexposed or uncomfortable. Louvers and other shading elements can filter direct sunlight while creating shadows that move across walls, floors, and ceilings throughout the day.
And that's where light becomes more than illumination.
It becomes part of the architecture.
It creates depth. It creates shadow. It reveals texture. It changes throughout the day and even throughout the seasons.
So I wouldn't define good natural light simply as a bright room.
On the northern side of a house, good light might mean soft, consistent ambient daylight.
On the southern side, it might mean controlled sunlight that creates movement, depth, and contrast.
Good natural light isn't necessarily about how much light enters a room. It's about understanding the character of that light—and designing the architecture to make the most of it.
AI: What you're describing makes light sound less like something that simply enters a room and more like something an architect can actually compose with.
And that raises another consideration. We're often focused on where a window is placed or how large it is, but the experience of light must also depend on what that light encounters—a wall, a ceiling, a floor, a material, even the depth of the room itself.
Q3. How do the architecture and materials of a room shape the way we actually experience natural light?
CT: This is an interesting question because it brings up design opportunities that I think often go unnoticed unless we intentionally talk about them.
Texture and materiality play a significant role in how light is perceived within a space.
Some materials absorb light. Others reflect it. Some diffuse it. And textured materials can create subtle shadows that change as the light moves across them. All of those characteristics affect not only how a room looks, but how it feels and even how comfortable it is.
At MODE4, we often describe our modern work as Quiet Modern. Another way I've described it is Warm Modern.
That's very different from the cold, sterile quality people sometimes associate with modern architecture.
I think much of that perception actually comes from materiality and the way those materials interact with light. Concrete, steel, glass, and other hard surfaces can be beautiful, but when they're used without balance, light can reflect from them in ways that feel harsh. The materials feel hard, and sometimes the light does too.
Compare that with natural wood, textured surfaces, fabrics, and other materials that absorb or soften light. Light moves across those surfaces differently. It reveals grain and texture. It creates subtle shadows. It adds warmth and depth.
That's one of the reasons material selection and daylight can't really be considered independently.
We're not simply asking, What material should this wall be?
We're also thinking about what happens when morning light strikes it. How will it look on an overcast afternoon? What shadows will appear across its surface? How will the room feel as the light changes?
Light gives materials life, and materials give light character.
When those two things are designed together, that's when a modern space can feel open and bright without ever feeling cold or sterile.
AI: You've described light almost as another material—something that interacts with wood, stone, fabric, and texture to change the character of a room.
But unlike those materials, light never stays still.
It changes by the hour, by the weather, and by the season. A room that feels one way in the morning can feel completely different late in the afternoon.
Which makes me wonder whether an architect is really designing not just for space, but for time as well.
Q4. When you're designing a home, how much do you think about the way light will change the experience of it throughout the day—and throughout the year?
CT: We think about it from the very beginning.
With every home we design, early in schematic design we incorporate solar analysis and solar studies to understand how sunlight will affect individual rooms throughout the day and throughout the year.
We typically study the house at both the winter and summer solstices. That allows us to see the sun at the extremes of its seasonal path -when it's lowest in the winter and highest in the summer - and understand how dramatically the experience of a room can change between those conditions.
That information begins influencing the architecture.
On southern, eastern, and western exposures, we're looking carefully at where direct sunlight enters the home and how we can control it. That might influence the depth of an overhang, the placement of a window, or the introduction of a shading device.
And we're not thinking only about the building.
We work closely with the landscape architect as well, looking for opportunities to use trees and other landscape elements to provide natural shading where appropriate. Architecture and landscape can work together to manage sunlight rather than treating them as separate systems.
I think this is also an important distinction between simply selecting a house design and actually designing a house for a particular site.
A lot of speculative housing begins with a predetermined plan or style that may be repeated from one property to another. The house gets placed on the lot, but the design itself may never have been developed specifically for that site's orientation, views, landscape, or solar exposure.
When MODE4 works with builders and developers, we approach those projects with the same site-specific thinking we bring to a custom home for a private client.
We study the orientation. We perform the same solar analysis. We consider where the morning and afternoon light will come from, where direct sunlight needs to be controlled, and how the house can take advantage of the particular qualities of that property.
That doesn't necessarily make the house more complicated.
It makes the house more appropriate to where it is.
And ultimately, whether we're designing a one-of-a-kind home for a private client or a speculative home for a developer, the goal is the same.
Most homeowners will probably never consciously recognize the solar analysis behind the design.
They won't walk into a room in July and think, The architect studied the summer solstice.
They'll simply notice that the room is bright without being uncomfortable.
Or they'll sit near a window on a winter afternoon and enjoy the warmth of sunlight reaching deeper into the space.
We're studying the movement of the sun so the homeowner doesn't have to think about it. They simply experience a home that feels comfortable throughout the day and throughout the year.
AI: What strikes me is how much intention sits behind something homeowners may experience almost unconsciously.
You're studying orientation, seasons, materials, shadows, landscape, and even the path of the sun—yet if you've done it well, none of that necessarily calls attention to itself.
The homeowner simply experiences the result.
So perhaps the final question isn't really about daylight at all. It's about what daylight allows architecture to do.
Q5. When natural light is designed well, how do you think it changes the way people actually experience living in their home?
CT: Every home deserves a site-specific solution.
We design waterfront homes on the Eastern Shore and along the Potomac, estate homes in horse country around Middleburg, urban homes throughout the Washington, DC, metropolitan area, and mountain and ski retreats in places like Telluride, Colorado. The landscapes and climates may be completely different, but our approach begins the same way.
We study the site, and we study the people who will live there.
Through a thorough investigation and close collaboration with our clients, we begin to understand their daily routines. Where do they have their first cup of coffee? Where does the family gather in the afternoon? Which spaces become quieter places of retreat? How might those patterns change between summer and winter?
We're very interested in designing for daily living.
That means a client may begin to experience the same house differently throughout the day—and differently throughout the year.
Sustainability is part of that thinking as well. One of our goals is to daylight a home so effectively that, during most of the day, there is little need to turn on electric lighting. But there's something more meaningful happening than simply reducing energy use.
Natural light allows us to experience the passage of time.
Morning light is different from afternoon light. A room changes as shadows move across a wall or floor. Materials reveal different textures. Spaces expand and contract. And the character of the house changes as the sun moves across the sky.
The house comes alive.
There's also a natural rhythm to the way our bodies respond to light throughout the day. We see artificial lighting systems attempting to recreate those changing patterns, but a thoughtfully daylit home can allow us to experience that rhythm naturally.
To me, that's where this conversation ultimately connects back to one of MODE4's core principles: mindfulness.
Mindfulness in architecture means being intentional about the decisions we make and understanding how those decisions affect the people who will ultimately live there.
We aren't simply trying to make a house brighter.
We're using light to connect people to their home, their landscape, and the natural rhythm of the day.
Closing Note
A client may begin by asking for “lots of natural light.” But thoughtful daylighting is about much more than adding windows. It is about orientation, comfort, materiality, sustainability, landscape, time, and the rhythms of daily life. When those considerations work together, light becomes part of the architecture itself—quietly connecting people to place and allowing the house to come alive.
