Independent guide · Washington, DC · Maryland · Virginia

Green building, told plainly — for the National Capital Region

Midsummer Green is an independent editorial resource about sustainable design and green building across the Washington, DC metropolitan area. We explain how better buildings get made — the principles, the certification systems, the energy strategies, and the regional projects worth knowing — without the jargon and without anything to sell.

Start with the guide See regional projects

Why the National Capital Region is a green-building story

Few places in the country have pushed harder on sustainable construction than the Washington, DC region. Dense urban cores, an early wave of local energy laws, a deep bench of architecture and engineering firms, and a public sector that buys and builds at scale have combined to make DC, Maryland and Virginia one of the most active green-building markets in the United States. Walk almost any corridor of the region and you will pass buildings designed to use dramatically less energy and water than their predecessors.

That progress can be hard to see from the sidewalk, because the most important sustainability decisions are usually invisible: how a building is oriented to the sun, how tightly it is sealed, where its materials came from, and how its systems are tuned after the ribbon is cut. This guide exists to make those decisions legible to anyone — a homeowner planning a retrofit, a facilities manager weighing an upgrade, a student choosing a career, or a resident who is simply curious about the greener city taking shape around them.

Sunlit modern atrium filled with indoor plants and daylight

What you’ll find here

Everything on this site is evergreen and educational. We do not sell tickets, take applications, or represent any organization. We are a reference — the kind of neutral, practical explainer we wish existed when we were first learning the field.

Better buildings, in four ideas

Use less

The greenest kilowatt-hour is the one never needed. Good green buildings start by cutting demand through orientation, insulation, daylight and smart layout — long before adding panels or equipment.

Choose well

Materials carry a hidden footprint from the moment they are mined and made. Sustainable projects favor durable, low-impact, and responsibly sourced materials that keep people healthy indoors.

Measure honestly

A design intention is not a result. The best teams verify performance after occupancy, tune systems, and share data — because a building only saves what it actually saves.

Build for people

Efficiency and comfort are not opposites. Daylight, clean air and thermal comfort make green buildings better places to live and work, according to the U.S. EPA.

Who this is for

You do not need a background in architecture to get value here. We write for the homeowner deciding whether a heat pump is worth it, the small-business owner weighing a lease in a certified building, the facilities manager staring down an aging boiler, the student choosing a first job, and the neighbor who simply wonders why a new building has plants growing up its side. Green building touches all of these lives, usually through decisions that are easier to make well once someone explains the options plainly.

We also write for professionals who want a neutral place to send clients — a link that explains certification, or embodied carbon, or net-zero, without a sales pitch attached. If that describes you, take what is useful. Everything on this site may be freely read and shared.

A note on our name

“Midsummer Green” is a nod to a long regional tradition of gathering, at the height of summer, to celebrate the people and projects moving sustainable building forward. We are an independent publication inspired by that spirit — not the event, the organization behind it, or any awards program. You can read more about who we are, and if you want the short version: we are readers and writers who care about buildings that tread lightly. We take no advertising, run no store, and have nothing to sell you but a clearer understanding of how greener buildings get made.

Ready to dig in? The green building guide is the best place to begin, or browse the journal for shorter reads.