Chevy Chase lots aren’t getting any bigger.

You love your neighborhood, you love your location, but your house is bursting at the seams. Kids are sharing bedrooms. You’re using the dining room as an office. Storage is a joke.

Building out isn’t an option because you’d lose your yard or violate setback requirements. So you build up.

Two-story additions make sense in established neighborhoods like Chevy Chase where lot sizes are limited but you need more space.

Why Build Up Instead of Out

Two-story additions give you more square footage without eating up yard space. You’re building on the same footprint but getting double the space—maybe 800 to 1,200 total square feet.

It’s actually more cost-effective per square foot than building a single-story addition because you’re sharing the foundation and roof between two levels.

And in Chevy Chase specifically, where lots are tight and yards matter, preserving outdoor space is a big deal.

Common Two-Story Configurations

Master suite over family room is probably the most popular setup. First floor gets you a nice family room addition, maybe a powder room. Second floor is your new master bedroom, bathroom, walk-in closet, maybe a sitting area.

Runs $150,000 to $300,000 typically depending on size and finishes.

Full second story on a ranch transforms a one-story house into a two-story. You’re adding an entire second floor—usually 2-4 bedrooms, 1-2 bathrooms. Major project but it basically doubles your living space.

$200,000 to $400,000+ depending on square footage and complexity.

Garage conversion with bedroom above takes your existing garage, converts it to living space, and adds a bedroom or office above. Usually requires building a new garage elsewhere on the property.

$180,000 to $350,000 all in.

The Structural Reality

Before you can build up, we need to know if your foundation can handle it.

Older homes weren’t necessarily built to support a second story. We bring in a structural engineer to assess your foundation and existing structure. If reinforcement’s needed, that adds cost but it’s not optional.

Foundation work to beef things up might run $10,000 to $30,000 depending on what’s needed.

What You’re Actually Paying For

Hard costs break down roughly like this:

Foundation and structural work: 15-20% of budget Framing and roofing: 25-30% Mechanical systems (HVAC, plumbing, electrical): 10-15% Interior finishes (cabinets, flooring, tile, etc.): 30-35% Windows and doors: 5-10%

Then soft costs: Architectural plans: $8,000-$20,000 Engineering: $3,000-$8,000 Permits: $2,000-$5,000 Contractor overhead and profit: 10-15% of hard costs

Figure $200-350 per square foot in Chevy Chase for a quality two-story addition.

The Zoning Maze

Chevy Chase has height restrictions—usually 35-40 feet maximum. Your addition can’t exceed that.

Setback requirements dictate how close you can build to property lines. These don’t change just because you’re building up—you still can’t extend past where you could build out.

Lot coverage limits restrict what percentage of your lot can be covered by buildings. Building up doesn’t add to lot coverage, which is part of why it works.

FAR (Floor Area Ratio) limits total building size relative to lot size. This is where building up can hit limits because you’re adding square footage.

We handle all the zoning compliance, but sometimes the answer is “you can’t build as big as you want” and we have to adjust the design.

How Long This Takes

Design and architectural plans: 2-4 months (complex projects take longer) Permitting: 2-4 months
Construction: 6-10 months for most projects

Total timeline: 10-18 months from first meeting to move-in.

Yeah, it’s slow. Two-story additions are major projects. You’re basically building a house on top of your house.

Living Through It

Two-story additions are disruptive. Part of your house will be inaccessible. There will be noise, dust, workers coming and going.

Some people stay in the house and tough it out. Others rent a place temporarily, especially during the heavy construction phases.

Either way, plan for disruption. This isn’t like a bathroom remodel you can ignore. It’s loud and invasive.

Will You Get Your Money Back?

Probably 60-70% at resale, similar to other major renovations.

But in Chevy Chase’s market, having adequate square footage matters. Undersized houses are harder to sell. An addition that brings you to neighborhood norms protects and enhances value.

Plus there’s the alternative: selling and buying a bigger house in Chevy Chase. Which would cost way more than the addition, plus you’d pay realtor fees, moving costs, all of it.

For most people, the addition makes way more financial sense than moving.

Thinking about a two-story addition in Chevy Chase? Call us at 240-449-5164 to discuss feasibility and costs.