Home Additions and Remodels in Littleton: Why Now Is a Great Time to Consider Your Next Project

In early November 2025, Littleton voters approved Ballot Question 3A by a margin of approximately 55 percent, enshrining single-family zoning protections into the city’s charter. (The Colorado Sun) The new amendment freezes zoning rules in most residential districts as of January 1, 2025, and requires voter approval for city-initiated rezoning of those districts. (littletonco.gov)

What 3A Means for Homebuilding

For homeowners in Littleton and the surrounding metro-Denver region, this development has meaningful implications. While many cities seek to increase housing density via duplexes, townhomes or accessory dwelling units (ADUs), Littleton has now placed stricter guardrails around those forms of development. (Denverite)

SDB supports local homeowners who are looking to make the most of their property now—whether through thoughtful home additions, whole-home remodels or adding value via interior upgrades. With the new charter amendment in place, there are several strategic reasons why this might be the ideal time to plan a project.

Why the zoning vote matters for your home upgrade

1. Preserving neighborhood character
   Homeowners who were part of the “yes” campaign for 3A emphasized preserving the small-town feel, yards, trees and open spaces of Littleton neighbourhoods. (News From The States) For homeowners considering an addition or remodel, that means your project is less likely to face the prospect of dramatic changes to the neighbourhood zoning environment—such as high-density builds next door—which can affect property value or comfort.

    

2. ADUs and accessory dwelling units
   Before the vote, Littleton had updated its zoning to align with state law (Colorado House Bill 24‑1152) to allow ADUs in many residential areas. (Vibrant Littleton) With 3A now in place, some stakeholders contend that the updated ADU regulations might be frozen or limited in scope, which makes it opportune for a homeowner to explore an addition or ADU while the favourable regulations apply.

    

3. Less competition for desirable lot uses
   Since Littleton has limited the latitude for large-scale rezoning of single-family zones, homeowners who remain in those zones may find fewer sudden shifts in use around them (for example, multiplexes replacing single-family homes). That relative stability can make the decision to remodel or add feel more secure.

    

4. Adding value now with confidence
   A well-planned addition or remodel—whether it’s an expanded family room, modernized kitchen, sun-filled primary suite or a new ADU for rental income—can yield long-term value. With zoning now more locked in, you may feel more confident investing in your home knowing that the zoning base is not in flux.

    

How SDB can help you take advantage of this moment

Sustainable Design Build specializes in home additions, home remodels and custom-home projects in the metro-Denver area—including Littleton and its surrounding suburbs. Our team knows how to navigate permitting, design and construction with an eye not just on aesthetics but on sound decision-making that reflects your neighbourhood’s environment.

If you are a Littleton homeowner considering one of the following, here is how SDB supports you:

• Room-addition / second story addition
  Whether you’re adding a new wing, expanding your family room, or building over your garage, SDB helps you assess structural feasibility, match your home’s architectural style, and minimize disruption to your daily life.

   

• Whole-home remodel
  From kitchen and bath modernizations to open-plan living, new flooring, bespoke millwork and lighting, SDB brings craftsmanship and a thoughtful schedule to your project. We communicate clearly and follow the trade-partner coordination process described in our client-care documents.

   

• Accessory Dwelling Units (ADUs) or guest suites
  Even if zoning regulations change or are more constrained going forward, homeowners who act now can often leverage current regulations to build ADUs (subject to lot, setback and utility conditions). SDB manages design, permitting, utilities and construction end-to-end.

   

What to keep in mind before moving ahead

• Start early: With zoning and permit requirements, scheduling trade partners and preparing budgets, lead time matters. Communication is key — we always emphasise that trade-partners are not employees of SDB but trusted collaborators.

   

• Budget realistically: Home additions and remodels typically run higher in cost than many expect if detailed design, structural work, finishes, utilities and coordination are done well.

   

• Understand your lot and home context: In Littleton’s preserved single-family zones, it’s important to work with a designer/contractor who understands setback, lot-coverage, and design compatibility considerations.

   

• Choose craftsmanship and service: As SDB focuses on high-quality remodels and additions, our goal is not just a construction finish but a home that fits your lifestyle and enhances your investment over time.

The passage of 3A in Littleton signals that single-family neighborhoods will remain a stable environment — making now a thoughtful time to invest in your home. If you are thinking about an addition, remodel or ADU, the team at SDB would welcome the chance to speak with you, review your vision, and help you move confidently toward the next chapter of your home.

References

Colorado Sun. (2025, November 4). Littleton Ballot Question 3A: Voters approve new restrictions on homebuilding. Retrieved from [link] (The Colorado Sun)
Colorado Politics. (2025, November 4). Littleton votes against housing ‘density’; new mayor elected in Centennial. Retrieved from [link] (Colorado Politics)
Colorado Newsline. (2025, October 15). Littleton charter amendment would lock in historic zoning rules. Retrieved from [link] (News From The States)
Denverite. (2025, October 31). Inside the four-sentence fight over Littleton’s future. Retrieved from [link] (Denverite)
Littleton CO Government. (2025). Ballot Question 3A Frequently Asked Questions. Retrieved from [link] (littletonco.gov)