How much does it cost to renovate a basement like this?

Costs vary depending on size, finishes, and layout complexity. For a full basement transformation like Hidden Haven—including bedroom, bathroom, kitchen, gym, and living space—clients typically invest between $100–$200 per square foot. We offer custom quotes after a design consultation.

Can you design a basement that functions as a short-term rental or in-law suite?

Absolutely. This project was designed with flexibility in mind—featuring a full suite layout including a private bedroom, bathroom, eat-in kitchen, and separate workout/office zones. We tailor every project to meet your goals, whether that’s rental income or multigenerational living.

Do I need permits for a basement renovation in Colorado?

Yes. Most finished basement projects require building permits, especially when adding plumbing, electrical, or egress windows. As a design/build firm, we handle all permitting and code compliance for you.

Can I customize the cabinetry, lighting, or layout?

Every aspect of your basement renovation is fully customizable. In Hidden Haven, we designed built-in cabinetry, selected lighting for each zone, and optimized the floor plan to enhance natural flow and storage.

How do you fit so many rooms in a basement without it feeling crowded?

It’s all in the planning. We use architectural space planning to define zones—like the gym with sliding doors, open living area, and tucked-away bedroom—while keeping the space light, open, and connected.

Will a finished basement add value to my home?

Yes. A well-designed basement like this one can significantly increase your home’s livable square footage and resale value—especially when it includes a bedroom and bathroom.

Hidden Haven

RenovationBasement Finish

Jun 9

Written By Rachel Nagy

A26 | Project Summary

This beautifully finished basement was thoughtfully designed to extend the home’s living space while adding stylish, multifunctional rooms perfect for daily life and entertaining.

The open-concept layout creates a natural flow between zones, featuring a custom wet bar ideal for hosting game nights, celebrations, or casual get-togethers. A dedicated home gym tucked behind sliding barn doors offers a private and convenient workout area, while smart built-in storage keeps everything organized and out of sight.

The addition of a full bathroom provides comfort for guests or short-term renters, making this lower level both practical and inviting. From durable flooring to curated finishes, every detail was crafted to elevate functionality without compromising on design.

Whether used as a cozy retreat, an entertainment hub, or a flexible Airbnb suite, this Colorado basement renovation enhances the home’s value and livability—proving that the best spaces are the ones that work as hard as they look good.

1323 SF

Arvada, Colorado

Owner

1 Year

Open concept basement renovation featuring built-in entertainment center, custom cabinetry, and plush sectional sofa by NAGY Design in Colorado

Modern finished basement bathroom with glass shower, open shelving, and dark wood vanity by NAGY Design in Colorado

Cozy basement bedroom with warm wood finishes, ceiling fan, and modern lighting designed by NAGY Design in Colorado

Finished basement design with home office and workout room separated by sliding barn doors, renovated by NAGY Design in Colorado

 ADU | RENOVATION

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 floor plan of finished basement with bedroom, bathroom, kitchen, gym, and open living area by NAGY Design in Colorado

Architectural Services

Unfinished Basement Renovation

One Bedroom Floor Plan

Built-in Wet Bar

Work-out Room with Sliding Doors

Open Living Space

Built-in Entertainment Features

Stylish basement kitchenette with wood cabinetry, floating shelves, and eat-in dining table designed by NAGY Design in Colorado

Unfinished basement with exposed ceilings and narrow staircase prior to renovation by NAGY Design in Colorado — Before Photo

Remodeled basement staircase with neutral carpet, iron baluster railing, and wood accents designed by NAGY Design in Colorado — After Photo

 ADU | RENOVATION

Common Questions

Costs vary depending on size, finishes, and layout complexity. For a full basement transformation like Hidden Haven—including bedroom, bathroom, kitchen, gym, and living space—clients typically invest between $100–$200 per square foot. We offer custom quotes after a design consultation.
Absolutely. This project was designed with flexibility in mind—featuring a full suite layout including a private bedroom, bathroom, eat-in kitchen, and separate workout/office zones. We tailor every project to meet your goals, whether that’s rental income or multigenerational living.
Yes. Most finished basement projects require building permits, especially when adding plumbing, electrical, or egress windows. As a design/build firm, we handle all permitting and code compliance for you.
Every aspect of your basement renovation is fully customizable. In Hidden Haven, we designed built-in cabinetry, selected lighting for each zone, and optimized the floor plan to enhance natural flow and storage.
It’s all in the planning. We use architectural space planning to define zones—like the gym with sliding doors, open living area, and tucked-away bedroom—while keeping the space light, open, and connected.
Yes. A well-designed basement like this one can significantly increase your home’s livable square footage and resale value—especially when it includes a bedroom and bathroom.