What can an ADU be used for in Denver?

An ADU can be used as an independent living space for family members, guests, or long-term rental housing, as long as it complies with Denver zoning and building codes.

How long does it take to build a detached ADU?

Most detached ADUs take several months from permitting through construction, depending on site conditions, design complexity, and city approvals.

Can a small ADU still feel comfortable and livable?

Yes. With thoughtful planning, efficient layouts, and quality construction, a compact ADU can include a full kitchen, bathroom, bedroom, and comfortable living space.

Does Prenvalley Builders handle the full ADU process?

Yes. Prenvalley Builders manages the design-build process from early planning and permitting through construction and final completion.

Are ADUs a good long-term investment in Denver?

ADUs can add flexible living space, increase property value, and support long-term housing needs, making them a strong option for many Denver homeowners.

Thoughtfully Built Backyard ADU

ADUNew Construction

Nov 7

Written By Phillip Daughton

Completed detached accessory dwelling unit in a Denver neighborhood, featuring a compact modern exterior designed and built by Prenvalley Builders.

Project Overview

The homeowners needed a compact, independent living space in their Denver backyard for a family member. Prenvalley Builders designed and built a detached ADU from the ground up, working within site constraints to create a fully functional, comfortable home. What makes this project special is how thoughtful planning and craftsmanship transformed a small footprint into a space that truly lives well.

Project Details

Size: 250 sq ft

Location: Denver, Colorado

Architectural Design: Prenvalley Builders

Concrete foundation and slab preparation for a detached accessory dwelling unit in a Denver neighborhood, showing early-stage ADU construction by Prenvalley Builders.

Framing and exterior sheathing installation for a detached accessory dwelling unit in a Denver neighborhood, showing mid-construction progress by Prenvalley Builders.

Exterior sheathing and building envelope installation on a detached accessory dwelling unit in Denver, showcasing mid-construction ADU work by Prenvalley Builders.

Our Approach

Prenvalley Builders approached this ADU with a focus on smart planning, efficient construction, and long-term livability. By managing the design-build process from permitting through completion, the team ensured every square foot was used intentionally while maintaining quality, durability, and code compliance. The result is a well-executed Denver ADU that balances practicality with thoughtful design.

Project Highlights

Detached, ground-up ADU construction
Compact, efficient floor plan
Full kitchen and bathroom
Dedicated bedroom with storage
Durable, low-maintenance exterior materials
Energy-efficient systems and lighting
Rooftop solar integration

Finished exterior of a detached accessory dwelling unit in Denver with rooftop solar panels, highlighting a compact, energy-conscious ADU built by Prenvalley Builders.

Side elevation of a completed detached accessory dwelling unit in Denver, featuring durable siding and clean architectural detailing by Prenvalley Builders.

Open-concept interior of a finished accessory dwelling unit in Denver, featuring a compact kitchen, modern finishes, and efficient use of space by Prenvalley Builders.

Results

The completed ADU provides a comfortable, independent living space that feels complete and thoughtfully built despite its compact size. By focusing on efficiency, durability, and quality execution, Prenvalley Builders delivered a home that supports everyday living while fitting seamlessly into the existing property.

Project Goals

Create an independent living space for a family member
Maximize functionality within a compact footprint
Deliver a durable, low-maintenance ADU
Support long-term comfort and everyday livability
Integrate the ADU seamlessly into the existing property

Finished bedroom interior inside a detached accessory dwelling unit in Denver, featuring built-in storage, efficient layout, and modern comfort by Prenvalley Builders.

Finished kitchen inside a detached accessory dwelling unit in Denver, featuring compact cabinetry, modern appliances, and efficient layout by Prenvalley Builders.

Finished bathroom inside a detached accessory dwelling unit in Denver, featuring a full tub and shower, modern fixtures, and efficient layout by Prenvalley Builders.

Phillip Daughton