162 ADU builders filed 262 ADU permits on homes in the City and County of Denver from October 2023 to September 2026; 77 filed one in the last 12 months. The middle filed job value was $137,144. The most active in the last 12 months were L & D Enterprises LLC (4 permits), Revo Renovations LLC (4) and Sustainable Design Build (3); busy is not the same as careful. The finished share isn't shown for ADU permits here, so this list compares firms on permits filed and recent activity only. Side by side: permits filed and permits in the last 12 months for each firm. Pick what you value and the list re-orders.
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Top 5 by ADU permits filed in the last 12 months. This is volume, not quality: a busy firm is not necessarily a careful one.
The 8 ZIP codes with the most ADU permits on homes from October 2023 to September 2026. Each opens permits by trade and the most active firms there.
80211 (45) 80210 (34) 80212 (33) 80205 (30) 80219 (22) 80209 (17) 80204 (11) 80223 (9)
Before you move a slider, the list is in a default order built only from the permit record: how much of each firm’s record is this kind of job (weight 30) and how many permits it filed in the last 12 months (15). Each measure is ranked against the other 162 firms and pulled toward the middle when a record is short.
The order comes from the Denver permit file, not from reviews: 77 of 162 ADU builders filed a permit in the last 12 months. Nobody pays to be listed or to move up, and there are no star ratings or reviews. The sliders and presets change the weights, and the order changes with them. How the records work in Denver.
We do not rate contractors. In this page’s default order, which uses only the permit record through Sep 2026, the top 3 are Prenvalley Builders (10 permits), L & D Enterprises LLC (9 permits) and Habitat for Humanity of Metro Denver Inc (11 permits). By permits filed alone, the most active is Habitat for Humanity of Metro Denver Inc with 11.
162 firms are on the list; the busiest filed 4 ADU permits in the last 12 months and the middle firm filed 1 in the whole file. Line them up on the same public measures: permits filed and usual filed job value. Pick what matters to you and the list re-orders, for example recent activity if you need someone soon. The order comes from the permit record only, and nobody pays to be listed or to move up.
162 firms filed at least one ADU permit on homes in the City and County of Denver from October 2023 to September 2026; 77 of them filed one in the last 12 months.
We have not matched license records to Denver firms, so ask for the license number and check it yourself with Denver permits & licenses portal. How to check a contractor's license in Colorado →
Three you can check against this page: “How many ADU permits have you filed in Denver?” (the middle firm here filed 1; 77 of 162 filed one in the last 12 months); “What value will you put on the permit?” (the usual filed value here is $137,144); “Will you pull the permit in your company’s name, and when is the final inspection?”. All 10 questions and how to check each →
On this page: 162 firms filed 262 ADU permits from October 2023 to September 2026, and each firm’s name opens its own permit record. Every number comes from City and County of Denver residential construction and demolition permits. To see one permit itself, search the address or permit number with the Denver permit office. How the records work in Denver →
We do not rate or collect reviews. Instead each of the 162 ADU builders here is shown with its permit record: 262 permits and usual filed value. Read reviews on other sites and use this page to check them against the record. Reviews vs permit records →
Every number on this page comes from City and County of Denver residential construction and demolition permits: 162 firms filed 262 ADU permits on homes in the City and County of Denver from October 2023 to September 2026, and 77 of them filed one in the last 12 months. The middle firm has 1 permit in the whole file. A short record leaves more uncertainty, and some jobs never require a permit.
The middle recorded permit value is $137,144. That is a filed estimate, not a quote or final bill. See how we compare records.
Most Denver ADU permits are filed in June (128 against an average month of 100); February is the quietest (68). When each trade is busiest in Denver →