Modernizing Permitting to Lower Housing and Construction Costs
Among states, Colorado ranks 50th of 51 states (including Washington, D.C.) as the least affordable housing market, reflecting high purchase prices, construction costs and regulatory friction. Why has housing “suddenly” become so expensive? One known contribution is permitting. For routine residential projects, delays increase the cost of repairs, replacements, panel upgrades, rooftop solar, and other household improvements.They also disrupt contractor scheduling, reduce the productivity of a construction, and repair workforce that is already stretched. Colorado’s permitting system is, as most individuals want, decentralized. Cities and counties administer building permits, while the state regulates selected activities and structures, resulting in different application requirements, review processes, technologies, and timelines across jurisdictions. The most important modernization challenge is not necessarily the technical building code itself, but the administrative fragmentation surrounding routine, standardized projects, such as those for HVAC, water heaters, or roof work.
Colorado is well positioned to modernize permitting for routine, low-risk residential projects by implementing a risk-based scoring system for faster review and approval. Permitting plays an important consumer protection role, so modernization should preserve inspections, documentation, enforcement, and penalties while eliminating avoidable administrative delay. Colorado should pursue three reforms:
- Private builders, in coordination with DOLA, should develop a risk-based framework that distinguishes projects requiring full review from those eligible for simplified or automated approval.
- The state should help and incentivize local governments to adopt fast-track pathways, tools, data standards, and transparent performance measures.
- The General Assembly should authorize a thoughtfully considered third-party certification pathway for eligible projects, subject to independence requirements, audits, inspections, and state oversight. Together, these reforms would reduce delays and household costs while preserving local code-enforcement authority and public safety.
Challenge and Opportunity
Colorado’s affordability challenge is characterized by a growing gap between household earnings and the cost of basic services, housing, insurance, transportation, utilities, and home maintenance. The pressure is especially acute for young families, first-time and middle-income homeowners, and employers trying to attract and retain workers in competitive markets. While the Front Range faces the most visible affordability strain, mountain, rural, and Western Slope communities also face rising costs and limited contractor capacity.
Permitting is not the only driver of these costs, but it is a practical and often overlooked administrative lever. Routine residential projects can be delayed by rules, inconsistent documentation requirements, manual intake processes, and local interpretations of similar project types. These delays increase financing costs, disrupt contractor scheduling, and raise prices for homeowners. They also reduce the productivity of a construction and repair workforce that is already stretched. The impact can be quantified in three ways:
- the number of households/projects affected
- the number of days added to routine work(
- the economic value of that delay.
Recent CSI research in Arizona found that permitting added about 23 days to residential project timelines on average, and each additional day of approval time was associated with roughly four additional days of total project time. Because the affected projects are high-frequency household improvements, HVAC replacements, water heaters, electrical panels, roof work, and rooftop solar, even modest delays can scale quickly across thousands of households. For example, if 25,000 routine residential projects in Colorado experienced only a 10-day avoidable delay, that would equal 250,000 household-days of delayed repairs or upgrades, before accounting for contractor downtime, rescheduling costs, financing costs, or higher consumer prices.
The opportunity is to distinguish between projects that genuinely require complex review and projects that can be safely processed through standardized pathways. A water heater replacement, like-for-like HVAC replacement, panel upgrade, or standardized rooftop solar installation should not face the procedural friction as complex replacements or developments.
When jurisdictions treat routine work as a custom administrative process, Colorado households pay for avoidable delay. For example, selected jurisdictions in Colorado already have a partial model in app-enabled permit processing for solar projects, which is available in Denver, several smaller jurisdictions, and through the state electrical permitting process for eligible solar projects. That system uses standardized criteria to move qualifying residential solar permits through faster front-end review while preserving inspection and code-enforcement authority.
Routine projects are a high-return starting point because they are common, standardized, and directly affect household costs. Faster permitting for repairs, replacements, panel upgrades, and rooftop solar can produce immediate benefits while building the infrastructure for broader permitting modernization over time.
The infrastructure can be built through pragmatic effort because each decision maker has a defined role: local governments run the permitting systems and/or work with a private provider while maintaining authority when it is needed, the Governor’s Office can convene agencies and create public performance pressure, the General Assembly can authorize legislation and one-time implementation funding, and state housing and regulatory agencies can provide model rules, technical assistance, and safety oversight.
Build from Existing Models
Colorado should not treat this proposal as starting from scratch. SB25-002, the 2025 regional building codes legislation for factory built structures, provides a useful template: it creates a state-led framework, accounts for regional conditions, limits inconsistent local treatment of factory built housing, allows third-party review and approval of final design and construction plans, and requires audits of third parties that review plans or conduct inspections. That model is directly relevant because it balances statewide clarity with local implementation and oversight rather than relying on broad preemption alone.
The state can also continue to build on its experience with SolarAPP+, an automated review platform for eligible residential rooftop solar projects. SolarAPP+ has been available to Colorado permitting authorities since its national launch in 2021, although adoption within Colorado has been gradual and remains limited to participating jurisdictions and eligible projects. SolarAPP+ demonstrates how standardized project information and objective eligibility criteria can move routine projects through front-end review quicker while leaving inspections and enforcement with the permitting authority. Its principal lesson for the broader proposal is that automation works best when project categories, required documentation, and code-compliance checks are defined in advance.
Colorado can also glean some insight from California. California’s AB 253, signed in 2025, allows an applicant to retain a private professional provider for residential plan check when the local review timeline exceeds 30 business days or when no applicable reviewer comments or sign-offs occur within 30 business days. San Diego’s implementation guidance illustrates the guardrails Colorado should emphasize: the private provider must be, in some way, credible of the trust offered by purchasers, must not have a financial interest in the permit or plan preparation, must submit an affidavit and plan-check report, and city inspections continue. The lesson is not to outsource safety; it is to offer a pressure release valve for delays while preserving public inspection and enforcement authority.
These examples suggest three design lessons for Colorado:
- start with clear project categories
- require independence and auditability for any third-party reviewer
- fund the data infrastructure needed to compare jurisdiction performance.
Without legislative direction and resources, a performance report may be difficult to implement because local permit data are often inconsistent, unavailable, or not reported in comparable formats.
Plan of Action
Recommendation 1. Establish a risk-based framework for routine residential permitting.
Before adopting statewide permitting standards, the Governor’s Office should direct DOLA’s Division of Housing to convene an official technical working group to develop a risk-based framework for routine residential improvements. At the same time, an independent private-sector group should develop and publish its own proposed framework using comparable project categories and safety criteria. The independent review would provide an external benchmark and identify areas in which government and private experts reach similar or different conclusions. After independently developing their recommendations, the two groups should develop a private-public technical working group with co-chairs from the private sector and one from DOLA to resolve disagreements. Although debatable whether independence would be the most effective path initially, an important aspect of the scientific process is independent verification, and as such, independent verification is what is suggested here. As a point of note, perhaps the most comparable example to what is proposed here is the National Renewable Energy Laboratory’s development of Solar APP+, built collaboratively with local governments, code-development organizations, and industry stakeholders to establish standardized criteria for automated residential solar permitting.
As a point left for debate, after considering both groups’ findings and the joint group’s work, and after publishing an explanation of how significant disagreements were resolved, policymakers may want to debate whether responsibility should lie with DOLA for the final recommended framework or with a private sector-led group. Lowering the cost of permitting may be better achieved through a joint effort, at least initially. After confidence is built, the process could potentially be improved by using just a private industry-led group, similar to the way the Motion Picture Association assigns movie ratings through its Classification and Ratings Administration. The General Assembly would determine which elements require statutory authorization, while DOLA would adopt administrative rules only within authority granted by law.
The framework should classify routine projects, such as HVAC replacements, water heaters, electrical panel upgrades, rooftop solar, roof work, and similar improvements, into permitting tiers based on risk, complexity, inspection needs, and consumer protection concerns. For example:
- Tier 0 could identify activities that do not require a permit;
- Tier 1 could cover instant or over-the-counter permits for low-risk, like-for-like replacements;
- Tier 2 could use expedited local review or independent third-party review for standardized but somewhat more complex work; and
- Tier 3 could preserve full local plan review for projects with structural, fire, electrical-load, life-safety, or consumer protection risk.
Each tier should specify minimum documentation, inspection requirements, audit rates, consumer notices, correction procedures, and enforcement consequences. Once developed, the tiered framework should become the basis for model rules, application checklists, public reporting measures, and future legislation that improve consistency across jurisdictions while preserving local authority over inspection, enforcement, and code compliance. The same working group should also define a phase-two option for selected larger residential or post-entitlement permit categories, so the state can move beyond routine home improvements without delaying the initial reform.
Although the proposed four-tier structure would be tailored to Colorado, its individual elements have established precedents. SolarAPP+ provides a model for automated review of standardized projects; California provides an example of independent professional review when local timelines are exceeded; and Colorado’s factory-built structure framework demonstrates how third-party review can operate under state standards and audits.
Recommendation 2. Incentivize fast-track approval pathways
The state should use DOLA’s Division of Housing as the lead agency for encouraging local governments to adopt fast-track review pathways for standardized, low-risk residential projects, with the Division of Local Government supporting grants, local-government outreach, and capacity building. DOLA should certify jurisdictions that adopt approved fast-track processes with the expertise of builders, economists, and other knowledgeable professionals insight, such as over-the-counter approvals, preapproved templates, automated review tools, instant permits, or shortened review timelines for projects that meet state-defined criteria. The Governor’s Office could support this through executive coordinated competition: setting statewide implementation goals, publishing comparable jurisdiction-level metrics, highlighting high-performing local governments, and making it politically and administratively easier for lagging jurisdictions to adopt proven workflows. The private sector and the state should encourage the sharing of regulatory resources so as to avoid recreating the wheel.
DOLA should pair certification with concrete incentives, including one-time implementation grants to cover software, staff training, consultant support, template development, and process redesign; priority access or scoring preferences for relevant housing, planning, and local government grant programs; and technical assistance for smaller or rural jurisdictions with limited permitting capacity, with the commitment amount of at least $2.5 million. Because comparable permit data are not always readily available, the General Assembly should fund a standardized reporting system and give DOLA clear authority to define data fields, reporting cadence, project categories, and compliance expectations for participating jurisdictions. This approach would use funding, eligibility, technical assistance, public reporting, and recognition as policy interventions while allowing local governments to choose the fast-track model that best fits their staffing, risk profile, and development review process.
Recommendation 3. Create a self-certified pathway backed by state review for self-certification and third-party review of low-risk residential projects
The Legislature should authorize a limited independent professional certification and third-party review pathway for clearly defined categories of routine residential work along the lines of California’s AB 253. To address the conflict-of-interest concern, Colorado should not rely on unrestricted contractor self-certification as the default model. For the lowest-risk, like-for-like work, a licensed contractor attestation may be appropriate only as one piece of documentation, paired with eligibility rules, homeowner notice, inspection rights, and audit exposure by the local government agency. For higher-risk categories, certification should come from an independent third-party reviewer or licensed professional who has no financial interest in the permit, the project contract, or the preparation of the plans being reviewed.
Under this model, qualified independent professionals or approved third-party reviewers could certify that eligible projects meet state-defined code, safety, documentation, and inspection requirements. The incentive for third-party certifiers would be a clear state-approved market for review services: contractors, utilities, and homeowners could pay certified reviewers or software-enabled review providers to move eligible projects through faster, predictable pathways. The consumer protection incentive is equally important: a homeowner would receive a standardized checklist, clear proof of what was certified, notice of inspection and complaint rights, and a defined enforcement pathway if the work fails to meet code or the certification is false. Certification would not eliminate local oversight; instead, it would allow local governments to issue permits more quickly for projects that meet predefined risk-based criteria while retaining authority to audit, inspect, revoke approvals, require corrections, and penalize false certifications.
Oversight should include a private registry of approved certifiers, training and renewal requirements, insurance or bonding requirements, conflict-of-interest rules, random audits, complaint tracking, public reporting, and removal from the program for poor performance or false certification. The state would provide its input and oversight through DOLA. The program should also require plain-language homeowner disclosures that explain what the permit does and does not cover, who performed the certification, how to request an inspection or file a complaint, and what remedies are available when a certified project fails audit or inspection. The program should begin with low- to medium-risk categories where code requirements are well understood, such as certain like-for-like equipment replacements, standardized rooftop solar projects, minor electrical or mechanical upgrades, roof work, and other routine residential improvements identified by the technical advisory group. The state could expand eligible categories only after reviewing audit results, inspection outcomes, complaints, and local implementation experience.
Conclusion
Colorado can reduce permitting delays without weakening safety by matching review requirements to project risk and aligning the decision makers that shape the permitting system. By establishing a risk-based framework, incentivizing fast track approvals, and creating a self-certified pathway and third-party review of low risk residential projects, Colorado will make routine residential work faster and more predictable. Colorado does not need to choose between local control and modernization: it can preserve local safety authority while creating clearer rules, faster pathways, and better oversight for projects that do not warrant intensive review.
It should not. Permits and inspections can save homeowners money by catching errors that they cannot reasonably detect themselves, such as roof, electrical, plumbing, mechanical, or structural defects. The proposal should therefore preserve inspections, documentation, audit rights, enforcement, and penalties. The reform is about speeding up predictable front-end processing for low-risk work, not eliminating the safety checks that protect homeowners.
Coordinated competition means the Governor’s Office and DOLA would create a common framework, publish comparable performance metrics, recognize high-performing jurisdictions, provide technical help to slower jurisdictions, and use grants or scoring preferences to reward adoption of proven workflows. It is “coordinated” because the state defines the framework and data, and it is “competition” because jurisdictions can compare their results and face public pressure to improve without the state taking over local permitting.
Yes. Colorado’s SB25-002 on regional building codes for factory-built structures provides an in-state model for state-led standards, third-party review, and audits while preserving local implementation roles. California’s AB 253 provides an out-of-state example of private professional plan check when local review exceeds specified timeframes, with guardrails such as licensing, certification, conflict-of-interest limits, affidavits, city review, and continued city inspections. Colorado also has fast-track review experience through Proposition 123 guidance and automated solar permitting through SolarAPP+ in selected jurisdictions.
The proposal is primarily a guided statewide framework, not a broad top-down preemption model. Local governments would continue administering permits, conducting inspections, and enforcing code compliance. The state role would be to authorize risk tiers, publish model rules, provide technical assistance, support public reporting, and offer grants or other incentives for jurisdictions that adopt approved fast-track pathways.
Routine projects are a high-return starting point because they are common, standardized, and directly affect household costs. Faster permitting for repairs, replacements, panel upgrades, roof work, and rooftop solar can produce immediate benefits while building the infrastructure for broader permitting modernization over time. The brief should acknowledge that the connection to housing supply is more indirect for small residential permits than for large housing developments. The stronger near-term claim is cost-of-living relief, homeowner service improvement, and administrative capacity building.
Yes, as an option. The first phase should focus on routine projects because they are easier to classify and safer to standardize. The legislation or executive framework should also authorize a second phase for selected larger residential or post-entitlement permit categories after the state reviews audit results, inspection outcomes, complaints, data quality, and local implementation experience.
Fast-track approval should apply to a broad definition of low-risk project categories with standardized requirements. Safety can be protected through consistent monitoring, required documentation, inspections, random audits, penalties for false certification, and local enforcement authority. For any third-party or certified-review pathway, Colorado should require independence, insurance or bonding, training, renewal, complaint tracking, public reporting, and removal from the approved-certifier registry for poor performance.
The state should track average approval times, total project timelines, permit-related delays, digital permitting adoption, administrative cost per permit, inspection outcomes, audit results, use of certified reviewers, grant participation, and user satisfaction among homeowners, contractors, and local governments. DOLA should publish comparable jurisdiction-level data so state leaders and local governments can identify where modernization is working and where additional technical assistance is needed. Because this data will not collect itself, the General Assembly should either use the private sector as the lead or fund the reporting system and authorize DOLA to define common data fields and reporting requirements. Tracking and measuring outcomes will help inform future phases of the work.
Fast-track approval does not mean eliminating permits or weakening code standards. It means matching the level of review to the risk and complexity of the project. For simple, routine work, local governments could use over-the-counter approvals, preapproved templates, automated review tools, or instant permits. Over-the-counter approval allows staff to approve straightforward applications quickly. Preapproved templates let contractors use standardized plans for common projects. Automated review tools screen eligible projects against objective criteria. Instant permits allow applicants to receive approval immediately when the project fits a defined low-risk category and the required information is complete. In each case, jurisdictions would retain inspection, enforcement, and code-compliance authority.
This depends on how much time and resources builders, risk experts, local government experts, and elected officials would be willing to contribute to a system that lowers the cost of repairs and replacements to existing property owners and thereby potentially impacting the cost of new supply of housing. It also depends on the amount of one-time and potential ongoing funding elected officials may be willing to put towards incentives. As an initial estimate, $2.5 million.
The Colorado Succession Through Apprenticeship Program would turn two problems into one solution: a state-coordinated pipeline that trains graduates to evaluate and operate existing businesses, then connects them to owners ready to show them the ropes and eventually hand over the keys.
Colorado ranks second-to-last in housing affordability. Blame Colorado’s notoriously slow permitting system. It’s time for an upgrade.
Often negotiations between data center developers and local officials are conducted behind closed doors, protected by NDAs. How can we have an informed debate, when we don’t know what’s on the table?
We need to focus on the demand and supply for research to address the needs of local government community.