Accessory Dwelling Units (ADUs) are one of the most practical ways to expand housing in Colorado, offering flexible living space for family members, renters, or even a private home office. If you’re considering an ADU in Lakewood, CO, one of your first questions will likely be: how long does it take to build?
The timeline depends on factors such as design choices, permitting, and construction, but with the right builder, you can move from idea to finished space on a predictable schedule. Below, we’ll walk through each stage of the process to give you a clear sense of what to expect.
Understanding ADU Construction in Lakewood, CO
Lakewood has specific zoning and permitting requirements for ADUs. These regulations shape the project’s overall timeline. For example, detached ADUs often require additional setbacks and utility connections, which can add weeks compared to converting a garage or basement. Working with a builder who understands local rules ensures that the process moves smoothly without costly delays.
Average Timeline Breakdown
Initial Consultation and Design (4–8 Weeks)
This stage covers site evaluation, architectural design, and budget planning. The length of this phase depends on how quickly design decisions are finalized. Custom layouts and unique finishes often extend the timeline, while choosing a pre-designed model can help you move faster.
Permitting and Approvals (8–12 Weeks)
In Lakewood, the permitting process can be one of the longest steps. Applications must meet zoning codes, building codes, and sometimes neighborhood review. Submitting complete and accurate documents the first time helps avoid back-and-forth delays.
Site Preparation (2–4 Weeks)
Before construction begins, the site may need grading, utility connections, or foundation work. The complexity of this prep work varies—converting a basement takes less time than pouring a new foundation for a detached ADU.
Construction Phase (3–6 Months)
Framing, roofing, insulation, plumbing, electrical, and interior finishes are completed in this stage. Weather can affect the schedule, especially if excavation or exterior work is needed. On average, a straightforward ADU build in Lakewood takes around 4–5 months once construction begins.
Final Inspections and Approvals (2–4 Weeks)
Once the unit is finished, the City of Lakewood conducts inspections to ensure compliance with building codes. After approval, the space is ready for move-in.
Total Time: 8–12 Months on Average
From the first consultation to final inspection, most ADU projects in Lakewood take 8 to 12 months. The actual timeline depends on the type of ADU, the complexity of the design, and the permitting process. Garage conversions or attached ADUs are usually on the shorter end of the spectrum, while detached ADUs often take longer.
Factors That Can Affect Your Timeline
- Local Regulations: Meeting Lakewood’s zoning requirements is critical.
- Design Complexity: Custom finishes and layouts add time.
- Contractor Experience: Builders who specialize in ADUs can streamline the process.
- Seasonal Weather: Heavy snow or rain may slow exterior work.
- Utility Connections: Extending sewer, water, or electrical lines can add weeks.
Why Work With an Experienced Lakewood ADU Builder?
Building an ADU is a major investment. Partnering with a local builder who understands Lakewood’s permitting system and construction requirements keeps your project on track. At Little Home Builder, we help clients through every stage, from design to move-in, so you can plan with confidence and avoid unnecessary delays.
Start Planning Your Lakewood ADU Today
Ready to create a functional, valuable ADU on your Lakewood property? Contact Little Home Builder today to schedule a consultation. Our team specializes in ADU design and construction across Colorado, and we’ll guide you through each step of the process to ensure your project stays on schedule.
