What is a pop-top addition, and how does it help with space needs?

A pop-top is a second-story addition built over an existing home. It’s an ideal solution for growing families who need more bedrooms or office space without expanding the home’s footprint.

What are the benefits of adding a rooftop deck?

Rooftop decks offer additional outdoor living space, elevated views, and a fun, usable area that doesn’t encroach on yard space—great for entertaining or relaxing.

How do you make a home both kid-friendly and adult-functional?

We included a flexible office that doubles as a guest room, durable materials, open main-level flow, and distinct zones for rest, play, and productivity—all designed with modern family life in mind.

Can you shift a home’s style toward mid-century modern through an addition?

Yes—this project transformed the home’s exterior and interior style with a mid-mod aesthetic, using horizontal lines, minimalist forms, and a refined materials palette to redefine its architectural identity.

Pop-top Playground

Pop-TopNew Construction

Jul 28

Written By Rachel Nagy

A113 | Project Summary

This mid-century modern home in Lakewood, Colorado, was transformed with a striking pop-top addition that lifts the design to new heights. The expansion introduces a spacious main suite, a dedicated home office, and a generous rooftop party deck perfect for entertaining with Colorado views.

The full interior renovation on the lower level reimagines the layout into a family-friendly plan designed for comfort, connection, and daily living. The result is a modern home addition that balances function and fun—blending timeless mid-mod character with fresh design, flexible spaces, and plenty of room to play.

2200 SF

Lakewood, Colorado

PrenValley Builders

1 Year

Exterior architectural rendering of a Lakewood, Colorado pop-top home addition by NAGY Design, showcasing modern rooflines, second-story expansion, and updated entryway design

pop-top | new construction

Signature Design Process

- Site analysis
- Existing conditions
- Budgeting
- Code review
- Contractor interviews negotiation
- Basic design concept generation
- 1-2 Iterations on a theme design evolution
- Plan approval to move forward to construction documents
- Detailed drawings
- 1 Major edit allowed
- Finish selection
- Permit comments
- Minimum of 3-5 site visits during construction
- Ensure the follow-through of the original design intent

Architectural interior rendering of a Lakewood, Colorado pop-top home addition by NAGY Design, showing modern fireplace, built-in shelving, and open living space layout

Architectural Services

Architectural Design & Planning

Pop-Top Addition – Main Suite & Office

Main Level Renovation

Exterior Remodel

Structural & Engineering Coordination

Interior Design & Consulting

3D architectural rendering of a modern pop-top home addition in Lakewood, Colorado by NAGY Design, featuring expanded second-story living and updated exterior design

Before photo of a Lakewood, Colorado home prior to pop-top new construction by NAGY Design, a residential design and build firm. — Before

pop-top | new construction

Common Questions

A pop-top is a second-story addition built over an existing home. It’s an ideal solution for growing families who need more bedrooms or office space without expanding the home’s footprint.
Rooftop decks offer additional outdoor living space, elevated views, and a fun, usable area that doesn’t encroach on yard space—great for entertaining or relaxing.
We included a flexible office that doubles as a guest room, durable materials, open main-level flow, and distinct zones for rest, play, and productivity—all designed with modern family life in mind.
Yes—this project transformed the home’s exterior and interior style with a mid-mod aesthetic, using horizontal lines, minimalist forms, and a refined materials palette to redefine its architectural identity.