O'Brien Construction LLC is an ADU contractor specializing in design, engineering, and construction of accessory dwelling units. Services include detached ADUs, additions, and design-assisted builds, with free consultations available.

O'Brien Construction LLC – ADU Contractor in Denver, CO

About O'Brien Construction LLC

About O'Brien Construction LLC

O'Brien Construction LLC is an ADU contractor serving their region with a focus on the design, engineering, and construction of accessory dwelling units. Over the years, they have developed and refined their processes to deliver ADU projects that aim to increase both the value and functionality of a property.

Their work spans the full scope of ADU development — from initial concept through to completed construction. Whether a client comes in with a clear plan already in place or needs guidance from the ground up, O'Brien Construction LLC works to align their process with the client's vision, budget, and timeline.

ADU Design and Construction Services

O'Brien Construction LLC offers a range of accessory dwelling unit services. Their in-house design team is available to assist clients who are still in the early stages of planning, helping to translate goals into workable construction plans. For those who already have a design direction, the team works to execute that vision within the agreed parameters.

As an experienced ADU builder, they handle the coordination of design, engineering, and construction as part of their overall service offering. This integrated approach is intended to keep projects on track and reduce the complexity that clients might otherwise face when managing multiple contractors or consultants.

Some of the ADU types they work with include:

  1. Detached ADU construction
  2. Accessory dwelling unit additions
  3. Design-assisted builds for clients without existing plans

Working with O'Brien Construction LLC

O'Brien Construction LLC offers a zero-obligation consultation for prospective clients. This initial meeting is intended to give both parties the opportunity to explore project ideas in more detail before any commitments are made. It allows clients to ask questions, outline their goals, and get a clearer sense of what the construction process would involve.

Their stated priorities include respecting the client's vision, staying within budget, and meeting construction deadlines — factors that are particularly relevant in ADU projects, which often involve navigating local permitting requirements and site-specific constraints.

For property owners considering adding an accessory dwelling unit to their property, O'Brien Construction LLC presents itself as a contractor with a structured process and experience in this specific area of residential construction.

Services

O'Brien Construction LLC performs the following services

  • Architecture & Design
  • Construction

O'Brien Construction LLC Reviews

Jack Craven

2026-01-27
"We had an excellent experience with OBrien Construction after water damage in our home in Denver. From the very beginning, their team was responsive, professional, and easy to work with. They handled the water mitigation quickly, set up proper containment, and did a thorough job with cleanup and demolition to prevent further damage. Once mitigation was complete, they seamlessly transitioned into the restoration work, keeping us informed every step of the way. The quality of work was excellent, timelines were clear, and the job site was always kept clean and organized. They also helped guide us through the insurance process, which took a lot of stress off our plate. If youre dealing with water damage, mitigation, demo, or restoration in the Denver area, I highly recommend OBrien Construction. Professional, trustworthy, and results you can count on."

Marc Scozzafava

2024-10-21
"Micheal and his crew have been so professional and courteous. They made the whole experience easy to deal with. I would definitely call on them again and recommend them to everyone. Marc Scozzafava"

Ben Mo

2024-10-01
"Mike O'Brien did a great job of replacing my roof, shed and skylights after they received hail damage. He knew how to look deeper at my flat roof than just the surface to see what needed to be repaired. I was very impressed with Mike's ability to deal with my insurance company and to make sure that they completely paid for everything with hail damage. They tried to underpay twice I also felt like Mike did not skimp on using quality products to replace those that were damaged. I trust Mike and plan on using his company for any future repairs of my Evergreen home."

Drew Gottlieb

2024-09-26
"Solid contractor- helped walk us through the insurance process for our roof that was damaged by a hail storm and followed through with job. Quality work. Highly recommend."

Maryellen Pienta

2024-09-25
"Fantastic response to an emergency and follow-up with restoration in a very timely manner. Easy to work with, responsible, and caring. Highly recommend for any home project."

Specifics

Opening hours

Monday 7:00AM - 7:00PM
Tuesday 7:00AM - 7:00PM
Wednesday 7:00AM - 7:00PM
Thursday 7:00AM - 7:00PM
Friday 7:00AM - 7:00PM
Saturday 7:00AM - 7:00PM
Sunday 7:00AM - 7:00PM

Location

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