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Boulder County

ADUs Decisions in Boulder County

How adus requests are decided across Boulder County, CO council meetings, the vote and the conditions on the record

Meetings
14
Mentions
204
Last Detected
Jul 21, 2026
Year
2026

ADUs is one of the most actively tracked zoning topics in Boulder County, CO. ZoneWire has analyzed 14 council meetings and detected 204 instances of adus activity. Below are the most recent discussions.

What is Accessory Dwelling Unit (ADU)?

A secondary, smaller residential unit on the same lot as a primary dwelling, such as a backyard cottage or garage apartment.

An Accessory Dwelling Unit (ADU) is a secondary housing unit located on the same parcel as a primary single-family residence. ADUs go by many names - granny flats, in-law suites, backyard cottages, garage apartments, or casitas - but they all share the common characteristic of being smaller, subordinate residential units that share a lot with the main house.

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ADUs in Boulder County, CO

A secondary, smaller residential unit on the same lot as a primary dwelling, such as a backyard cottage or garage apartment. In Boulder County, CO, local government bodies regularly discuss adus as part of zoning and land use decisions.

ZoneWire has analyzed 14 meetings in Boulder County and detected 204 mentions of adus, an average of 14.6 mentions per meeting.

Recent ADUs meetings in Boulder County

February 26, 20262h 26m22,944 words
76approvedpublic hearingland useaducomprehensive plan
Agenda available
February 12, 20261h 0m10,001 words
54land usepublic hearingzoningresidentialcomprehensive plan
Agenda available
February 5, 20263h 1m26,181 words
191public hearingland usecomprehensive plansubdivisionapproved
Agenda available
January 27, 20264h 14m37,036 words
186comprehensive plancommercialapprovedPUDzoning
Agenda available
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Why Track ADUs?

ADU policy has become one of the most active areas of zoning reform nationwide. States like California, Oregon, and Washington have passed legislation overriding local restrictions on ADUs, making them a by-right use in most residential zones. Common regulatory changes include eliminating owner-occupancy requirements, reducing parking mandates, and allowing ADUs on any residential lot.

ADUs Regulations in Colorado

Colorado sets the regulatory framework that governs how adus decisions are made at the county and municipal level. State statutes define zoning authority, hearing requirements, and appeal processes that directly affect adus outcomes in Boulder County.

View all Colorado zoning activity

Every ADUs decision in Boulder County

See how every adus request in Boulder County was decided: the vote, the conditions attached, and how it moved through its hearings.

See ADUs decisions in Boulder County, CO

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ADUs in Other Counties

Clark CountyMaricopa CountyMiami-Dade CountyMecklenburg CountyBexar CountyNashville-Davidson CountyFulton CountyRiverside CountyOrange CountyTarrant CountyAustinKing CountyHillsborough CountyColumbusDenverBostonMilwaukeeSan FranciscoDallasSan Diego CountyBroward CountyPortland MetroSan JosePrince George's CountyChicagoMaui CountyHawaii CountyCharlotteSalt Lake CityHoustonSacramentoJacksonvilleBaltimoreLos AngelesLos Angeles CountyLas VegasLouisvilleHennepin CountyPolk CountyDouglas CountyRamsey CountyDakota CountyMartin CountyJuneauHuntsvilleMobileMesaPhoenixSanta Cruz CountyButte CountyFontanaFresnoLong BeachOaklandRancho CordovaSan DiegoSanta ClaraNapa CountySan Mateo CountyLovelandPueblo CountyNorwalkCitrus CountyMiamiLake CountyPasco CountyPinellas CountySt. Lucie CountyCobb CountyCook CountyOverland ParkWyandotte CountyLivoniaOakland CountyWillmarSpringfieldGulfportMissoula CountyJacksonvilleBismarckJersey CityHillsborough TownshipAlbuquerqueWestchester CountyTulsaTulsa CountyPortlandDeschutes CountyAllentownProvidenceGreenvilleLancaster CountyMinnehaha CountyFranklinBrazoria CountyCollege StationColleyvilleFort WorthLeanderMansfieldSan AntonioSugar LandSalt Lake CountyChesterfield CountyHanover CountySpotsylvania CountyStafford CountySeattleSnohomish CountyGreen BayCharlestonLoudoun CountyPrince William CountyFairfax CountyMemphisLaramie CountyNew AlbanyCoweta CountyEagle MountainStorey CountyNewton CountyMount PleasantPort WashingtonSt. Joseph CountyAtlantaConwayWest Des MoinesKunaCaddo ParishLewistonSarpy CountyNottinghamSouth BurlingtonNew Castle CountyArchuleta CountyBox Elder CountyWashtenaw CountyMorgantownSaint PaulPhiladelphiaTucsonPima CountyPittsburghNew OrleansIndianapolisRaleighScottsdaleFort WayneFremontDoverWayne TownshipEast HartfordBuffaloMonticelloDaytonNew York CityOmahaDouglas CountyWeld County

Frequently Asked Questions

An Accessory Dwelling Unit (ADU) is a secondary housing unit located on the same parcel as a primary single-family residence. ADUs go by many names - granny flats, in-law suites, backyard cottages, garage apartments, or casitas - but they all share the common characteristic of being smaller, subordinate residential units that share a lot with the main house. ZoneWire tracks adus activity across Boulder County, CO public meetings.

ZoneWire monitors Boulder County, CO planning and council meetings, transcribes them, and flags adus activity. As of the latest update we have analyzed 14 meetings and detected 204 adus mentions.

Tracking adus in Boulder County surfaces zoning and development signals early, so developers, investors, and brokers can evaluate parcels and approvals before they reach the broader market.

ZoneWire monitors Boulder County commission, city council, and planning commission meetings in Colorado for rezoning requests, variances, conditional use permits, planned unit developments, comprehensive plan amendments, and development approvals.

ZoneWire automatically monitors public Boulder County government meetings, transcribes the audio with AI, scans each transcript for zoning keywords, and sends email alerts linked to the exact moment a relevant topic was discussed.

Key zoning terms to watch in Boulder County include rezoning, variance, conditional use permit, PUD (Planned Unit Development), comprehensive plan amendment, site plan, and annexation. ZoneWire tracks all of these automatically across every Boulder County governing body.

Subscribe to Boulder County on ZoneWire to receive email alerts whenever zoning-relevant topics are detected in local meetings, so you can act on rezonings and development decisions before they reach the broader market.

Yes. ZoneWire Free sends New Meeting Alerts for Boulder County at no cost, with the agenda for each meeting. ZoneWire Pro adds full transcripts, zoning and development analysis, and keyword alerts for $129 per market per month.

Know how adus requests get decided in Boulder County, CO

Get the vote, the conditions, and how each adus request was decided, the day it lands.

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What gets approved in Boulder County

In Boulder County, 82% of land-use board decisions were approved over the last 24 months. Land use / comp-plan amendment clear 88%, Single-family homes 89%. ZoneWire analyzed 68 land-use board decisions in Boulder County over the last 24 months. Here are the most active project types and how often each one clears.

Project typeDecisionsApproval rate
Land use / comp-plan amendment2688%
Single-family homes989%
Commercial / office / retail1191%

5 decisions that went against the odds

These are the denials and deferrals in categories that usually sail through, the deals worth understanding before you commit capital.

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