What are the key benefits of building a duplex?

Building a duplex offers several advantages, particularly in high-demand urban areas like Denver. One of the key benefits is the potential for rental income from one of the units while living in the other. Duplexes are also a cost-effective option compared to building two separate homes, as they allow for shared infrastructure, such as utilities, roofing, and foundation. Additionally, a duplex allows for flexibility in design, offering private living spaces while also providing opportunities for community or family living in close proximity.

What is the cost to build a duplex?

The cost to build a duplex varies significantly depending on location, design, materials, and the complexity of the project. In the Denver metro area, the average cost for a high-quality duplex can range from $400,000 to $800,000 or more, depending on factors such as square footage, finishes, and the need for special features like a detached garage or rooftop decks. We work closely with clients to define a realistic budget and provide detailed cost estimates tailored to the project’s unique requirements.

What are the zoning requirements for building a duplex in my area?

Zoning requirements for duplexes can vary depending on the location. In Denver, for example, certain areas may have specific zoning codes that allow for multi-family homes like duplexes, while others may require a zoning change or variance. We will conduct a thorough review of the local zoning laws to ensure that building a duplex on your property is feasible. If any changes or approvals are needed, we will assist you in navigating the zoning and permitting processes.

What should I consider when selecting a location for my duplex?

When selecting a location for your duplex, there are several key factors to consider. First, evaluate the zoning regulations to ensure the area allows for multi-family dwellings, such as duplexes. Proximity to amenities like schools, public transportation, parks, and shopping can increase the value and desirability of the property. Additionally, assess the neighborhood’s overall appeal, safety, and future development potential. Working with a local architect or real estate expert can help you choose a site that maximizes your investment and aligns with your long-term goals.

Falcon's Perch Duplex

New ConstructionTownhome

Jul 14

Written By Rachel Nagy

A67 | Project Summary

Located just two blocks from the serene waters of Sloan’s Lake in Denver, Falcon’s Perch Duplex is a modern three-story home designed to elevate urban living while embracing outdoor connection. Built by NAGY Design, this new construction duplex blends thoughtful architecture with functional luxury.

The open-concept main level offers seamless indoor-outdoor flow, ideal for entertaining or day-to-day comfort. Large sliding doors and natural light invite the outdoors in, while a detached two-car garage with alley access ensures both convenience and privacy.

Upstairs, the second floor features a spacious ensuite bedroom and a luxurious rear-facing main suite, complete with a private balcony—perfect for morning coffee or evening relaxation. The third floor is designed for versatility and lifestyle, featuring two additional bedrooms, a full bath, and a generous indoor entertaining area that opens to a sprawling rooftop deck.

Perfect for hosting or enjoying Colorado sunsets, this deck extends the living space into the outdoors—framing panoramic neighborhood views. Every inch of Falcon’s Perch has been intentionally crafted to reflect NAGY Design’s signature approach: blending clean, modern lines with the warmth and livability of home.

2222 (2x) sq. ft

Sloans Lake, Denver

G.J. Gardner

1 Year

Completed exterior of Falcon's Perch Duplex in Sloan’s Lake, Denver, featuring a modern white brick facade, black trim, wood fencing, and fresh landscaping by NAGY Design

Rear view of detached garage and alley access for Falcon’s Perch Duplex in Sloan’s Lake, Denver—featuring black siding, modern door entry, and paver walkway by NAGY Design

Covered front entryway of Falcon’s Perch Duplex in Sloan’s Lake, Denver—featuring black vertical siding, wood soffit ceiling, and white stone facade designed by NAGY Design

NEW CONSTRUCTION | TOWNHOME

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 rendering of Falcon's Perch Duplex—new construction townhome project in Sloan's Lake, Denver—designed and built by NAGY Design

Backyard rendering of Falcon's Perch Duplex in Sloan's Lake, Denver, showcasing modern townhome design with covered patios and detached two-car garage by NAGY Design

Architectural rendering of rear patio and second-floor balcony at Falcon’s Perch Duplex in Sloan’s Lake, Denver—showcasing modern outdoor living design by NAGY Design

Architectural Services

Zoning and Code Review

Site Analysis and Preparation

Architectural Design and Planning

Construction Documentation & Permitting

Consultant Coordination

Construction Administration and Oversight

Front elevation of Falcon’s Perch Duplex in Sloan’s Lake, Denver—showing white brick facade, black trim, green lawn, and horizontal wood privacy fence by NAGY Design

Exterior construction progress photo of Falcon's Perch Duplex in Sloan’s Lake, Denver—showing new townhome framing and window installation by NAGY Design — Exterior Construction in Progress

Interior construction progress of Falcon's Perch Duplex in Sloan’s Lake, Denver, featuring modern open-concept kitchen, floating staircase with black railing, and pendant lighting by NAGY Design — Interior Construction Progress

Final exterior stage of Falcon's Perch Duplex in Sloan’s Lake, Denver, showcasing modern white brick facade, black trim, and newly installed Andersen windows by NAGY Design — Final Exterior Construction Stages

NEW CONSTRUCTION | TOWNHOME

Common Questions

Building a duplex offers several advantages, particularly in high-demand urban areas like Denver. One of the key benefits is the potential for rental income from one of the units while living in the other. Duplexes are also a cost-effective option compared to building two separate homes, as they allow for shared infrastructure, such as utilities, roofing, and foundation. Additionally, a duplex allows for flexibility in design, offering private living spaces while also providing opportunities for community or family living in close proximity.
The cost to build a duplex varies significantly depending on location, design, materials, and the complexity of the project. In the Denver metro area, the average cost for a high-quality duplex can range from $400,000 to $800,000 or more, depending on factors such as square footage, finishes, and the need for special features like a detached garage or rooftop decks. We work closely with clients to define a realistic budget and provide detailed cost estimates tailored to the project’s unique requirements.
Zoning requirements for duplexes can vary depending on the location. In Denver, for example, certain areas may have specific zoning codes that allow for multi-family homes like duplexes, while others may require a zoning change or variance. We will conduct a thorough review of the local zoning laws to ensure that building a duplex on your property is feasible. If any changes or approvals are needed, we will assist you in navigating the zoning and permitting processes.
When selecting a location for your duplex, there are several key factors to consider. First, evaluate the zoning regulations to ensure the area allows for multi-family dwellings, such as duplexes. Proximity to amenities like schools, public transportation, parks, and shopping can increase the value and desirability of the property. Additionally, assess the neighborhood’s overall appeal, safety, and future development potential. Working with a local architect or real estate expert can help you choose a site that maximizes your investment and aligns with your long-term goals.