A pop-top, a second story added to a one-story house, is a distinctly Denver solution in neighborhoods with small lots and rising land values. It usually needs a structural engineer, foundation evaluation and full permit plans, and you'll typically move out for part of the job.
What pop-tops & additions typically costs in Denver
| Scope | Typical range (estimate) | What that usually covers |
|---|---|---|
| Basic room (600 sq ft) | $154,500 – $247,000 | bedroom/family room, simple roofline |
| With bath or kitchenette (600 sq ft) | $216,500 – $309,000 | adds plumbing |
| Second story / high-end (600 sq ft) | $309,000 – $463,500 | structural work, premium finishes |
Planning estimates for typical projects, not quotes. Your bids will depend on size, condition, materials and permit requirements.
Zoning
Denver's zoning code controls height, bulk planes and setbacks, and these can limit pop-top size. Denver allows ADUs in many residential zones. Check your parcel's zone district before you design.
Denver project cost estimator
Planning estimate
$144,200 – $206,000
Rough planning range only — not a quote. Real bids depend on site conditions, permits, materials and the contractor.
Pop-Tops & Additions: common questions
How long does a pop-top take?
Design and permitting often take several months, and construction often 6–9 months.
Where we match pop-tops & additions projects
Denver · Aurora · Lakewood · Arvada · Littleton & Centennial · Highlands Ranch · Parker & Castle Rock · Westminster & Thornton