Running out of space but love your neighborhood?
In Denver’s tight lot market, building up instead of out is often the perfect solution. A second-story (or “pop-top”) addition gives you an entire new level of living space without sacrificing yard or character.

At AAA Home Improvements, we’ve spent over 20 years engineering second-story additions that look like they’ve always been part of the home — not an afterthought.

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What Is a Second-Story Addition?

A second-story addition adds an entire new floor above your existing home. Depending on structure and zoning, it can include:

  • Primary suites with mountain views

  • Children’s bedrooms and bathrooms

  • Loft offices or bonus rooms

  • Laundry rooms and storage

Denver calls these projects “pop-tops” because the original roof is removed, then a new level is framed above existing walls and structure. It’s complex work — but with AAA’s design-build process, it’s seamless from concept to completion.

Why Build Up Instead of Out?

Maximize Your Lot

Many Denver neighborhoods — Wash Park, Berkeley, Highlands — have small lots and strict setbacks. A second story gains space without violating those limits.

Preserve Your Yard

Keep space for kids, gardens, and outdoor living instead of building into it.

Add Panoramic Views

Elevating living space brings Front Range sunsets right into your primary suite.

Increase Home Value

A two-story home in Denver often appraises 20–30 % higher than a ranch of similar footprint.

Stay Rooted

You keep your lot, school district, and equity — while transforming your home for the next chapter of life.

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ADU Construction Category
Home Edition Blog
Home Remodeling
Custom Homes
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Design & Engineering Considerations

Structural Feasibility

Adding a floor requires verifying that the existing foundation and load-bearing walls can support new weight. AAA’s engineers conduct core samples and structural analysis before design begins.

Stair Placement

Stair location is key for flow and code. Our design team integrates stairs as a feature — not an afterthought.

Plumbing & HVAC Routing

Second-story bathrooms and laundry require careful vertical runs. We re-engineer systems for efficiency and balance.

Roof Line Integration

A properly designed roof transition is what makes a pop-top look original. We match pitch, soffits, and materials perfectly.

Permitting & Zoning

Each municipality has height restrictions and side-yard requirements. AAA handles the entire permit process and city submissions.

Second-Story Design Inspiration

Style Description Distinguishing Feature
Modern Farmhouse White lap siding + black windows Vaulted ceilings, front gable
Transitional Pop-Top Blends brick main floor with fiber-cement upper Neutral palette, clean lines
Classic Denver Bungalow Adds dormers and clad windows to match original Historic charm preserved
Contemporary Mountain Steel and glass accents Open balcony and view walls

 

What Does a Second-Story Addition Cost in Denver?

Every project is unique, but here’s a realistic 2025 range based on AAA data:

Size Approx. Sq Ft Typical Cost Range Cost per Sq Ft
Small Suite Addition 500–700 sf $175 k – $225 k $350–$400 / sf
Full Pop-Top (Level Add) 800–1,200 sf $250 k – $400 k + $375–$500 / sf
Luxury Primary Suite Addition 600–900 sf $225 k – $350 k $375–$475 / sf

Cost Factors:

  • Structural reinforcement of foundation

  • Roofing and truss engineering

  • New mechanical systems

  • Interior finishes (level of customization)

Timeline: Typically 8–12 months from initial design to final inspection.

Common Challenges & How AAA Solves Them

Structural Integrity: We engineer reinforcement before construction — no surprises.
Weather Delays: Winter builds require roof sequencing plans; we stage materials for rapid dry-in.
City Reviews: Our permitting team tracks submittals weekly to avoid delays.
Neighbor Relations: We coordinate with adjacent properties on setback concerns and parking.

Our Proven 6-Step Design-Build Process

This section appears identically across all service pages for brand consistency.

  1. Discovery Call — Discuss goals & budget via Teams.
  2. On-Site Consultation — Evaluate structure & zoning feasibility.
  3. Preliminary Design & Estimate — Concept plans + investment range.
  4. Engineering & Permitting — Luke Jones handles all approvals.
  5. Construction & Finishing — Toby Hertel leads build; JT completes finish work.
  6. Final Walkthrough & Warranty — Ensure every detail meets AAA standards.

The Smart Way to Budget

We recommend starting with your total investment goal, not an itemized wishlist.
During your Discovery Call, we’ll reverse-engineer a plan that fits both your lifestyle and your budget — before design even begins.

“Budget clarity before design saves money during construction.”
AAA Home Improvements Design Team

Why Choose AAA Home Improvements for Your Home Addition?

Starting a Home Addition isn’t just about construction — it’s about trust, planning, and craftsmanship.

AAA Home Improvements offers:

  • 20+ years of experience in Denver and Front Range.
  • A full design–build process that manages every step.
  • A reputation for premium craftsmanship and clear communication.
  • A client-focused approach that respects your time, budget, and goals.

Our mission is simple: to create a home that is functional, beautiful, and built to last.

Second Story Additions FAQ

What’s Next?

If you’re thinking about a remodel, the first step isn’t demolition — it’s a conversation.

Book a free Discovery Call with AAA Home Improvements. We’ll discuss your home, your goals, and what’s possible within your investment range.

🎯 Schedule My Discovery Call →

Julie Venci
I cannot say enough great things about AAA. I've worked with them multiple times, and ...
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Julie Venci
I cannot say enough great things about AAA. I've worked with them multiple times, and they have always been super professional. Toby and his team were always timely and responsive when I asked questions. I've referred several friends to AAA because they do great work. My family is considering building an ADU, and we plan on having AAA build it. I highly recommend AAA for any project, big or small. They are great!
Julie Venci
Julie Venci
Kevin Carney
We've worked with AAA Home Improvements for several projects since moving into our home and ...
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Kevin Carney
We've worked with AAA Home Improvements for several projects since moving into our home and I can say without exaggeration that our experience working with them has been nothing short of phenomenal. Toby Hertel and his team are first-class professionals with a wealth of knowledge and expertise. They've always been a pleasure to communicate with and the end results of the projects have been exceptional. I can't recommend them highly enough and hope you appreciate their services as much as our family has.
Kevin Carney
Kevin Carney
Aron Yacobucci
We had a great experience working with Toby and his team building a second story ...
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Aron Yacobucci
We had a great experience working with Toby and his team building a second story addition on our 100+ year old bungalow. In fact our first project so well, we hired them again to remove some walls and open the kitchen to the main living areas of the home, and finally complete a full remodel of our kitchen including redesigning the entire layout, moving the gas lines, water lines, drain lines, new electrical, cabinets and even a new kitchen ceiling. I don't have any reason I would ever hire anyone else after two successful experiences with AAA Home Improvements.
Aron Yacobucci
Aron Yacobucci
Cheryl T
AAA home improvements recently finished our basement. From the start to finish, the...
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Cheryl T
AAA home improvements recently finished our basement. From the start to finish, the project went great. Starting with Bob on the design and working with Luke, Toby, JT, we were thoroughly impressed with each phase of the work. Eddie, Rich, Merrill, Robert, Carlos, Andre, Antonio were all experts in their trades and we couldn’t have asked for better crews on this project. The basement was completed as scheduled and It turned out perfect! We highly recommend this company and would use them again on any future projects we may have.
Cheryl T
Cheryl T
J Shoppe
Our first experience with AAA Home Improvements was in about 2006 for a “refresh” of...
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J Shoppe
Our first experience with AAA Home Improvements was in about 2006 for a “refresh” of our kitchen (light remodel). Since then they have assisted us with restoration repairs when a pipe broke, flooding our finished basement, then a deck, then new roofing and finishing a basement when we moved in 2013. In 2019 we came back to AAA for a major kitchen remodel, followed by a complete renovation of our primary bathroom a couple years later. We kept returning to AAA Home Improvements time after time because of the blend of customer service and expertise that they provide. Toby is very solution oriented and reasonable to work with when problems arise. Years of history of working with a firm that is obviously concerned with getting the job done right led us to asking Toby if AAA Home Improvements would be willing to tackle a new build in a mountain community. Working with Luke and Toby on the design-build of the house was an enormous task with beautiful results! We will continue to recommend AAA Home Improvements and seek them out for future projects. (In photos: the brick wall and windows were previously a wall of cabinets, the cooktop was moved off the island, the soffit was removed and the arch entryway was enlarged.)
J Shoppe
J Shoppe

Ready to explore your Home Addition options? Contact AAA Home Improvements today for a consultation and discover how we can help unlock the full potential of your home.

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