Do I need a permit in Severance, Colorado?

Severance sits on the Front Range at 4,700 feet, where the transition between plains and foothills creates two distinct permit environments. The City of Severance Building Department administers permits using the 2021 International Building Code with Colorado amendments, plus local zoning and drainage rules specific to the Poudre River watershed. What makes Severance unusual: the soil is expansive bentonite clay in most developed areas, which means footing and foundation design carry extra scrutiny. Frost depth runs 30–42 inches across the developed plateau, but if you're building in the transitional zones toward the mountains, it climbs to 60 inches or deeper. The city allows owner-builders for owner-occupied 1–2 family homes, but the permit process is rigorous — plan review typically runs 3–4 weeks, and the building department does not issue permits until structural plans show soil-bearing analysis and frost-protection calculations. Most rejections stem from inadequate foundation detail, missing expansive-soil reports, or drainage plans that don't account for the city's strict stormwater rules. Severance has experienced rapid growth over the past decade, and the building department processes most permits by appointment; online filing exists but is limited. Call ahead or check the city portal to confirm current hours and application methods before you head downtown.

What's specific to Severance permits

Expansive soil is the dominant permit driver in Severance. Nearly all building sites on the developed plateau sit on bentonite clay with swelling potential of 2–5% when moisture changes — this is not a casual detail. The building department requires a geotechnical engineer's report (not a simple inspection) for any new house, addition, or structure with a foundation. That report must recommend specific footing depth, width, and reinforcement, plus moisture-management measures. Shallow or undersized footings are the #1 reason structural plans get rejected in Severance. If you're building on a site without a recent geotech study, budget $1,200–$2,500 for a qualified engineer's evaluation before you file.

Frost depth and foundation timing are tightly linked here. The IRC allows 36-inch footings in many climates; Severance's 30–42 inch frost depth (deeper in mountain zones) means footings must bottom out at or below frost depth. The city's water table is also variable — some sites have seasonal perched water, which complicates drainage and footing design. Any addition to an existing house must follow the same footing rules as new construction. This is where owner-builders run into trouble: they assume an existing foundation is 'good enough' to build on, but a new addition cannot sit shallower than frost depth. If your site requires 42-inch footings and your existing house has 24-inch footings, the addition must go deeper — or you engineer a frost-protection system (like rigid insulation), which adds cost and complexity.

Drainage and stormwater are quasi-permit issues. Severance is in the Poudre River drainage basin, and the city has been tightening rules on detention, routing, and runoff during the past five years. Plan review routinely kicks back site plans that don't show how storm runoff flows to a defined outfall. Grading and swales must prevent water from ponding against foundations or running onto adjacent properties. If you're doing any grading, fill, or lot-leveling work, the site plan is part of the building permit package — don't skip it or assume the contractor will handle it separately. Many homeowners discover mid-project that a retaining wall or driveway fill triggers a separate grading permit.

The City of Severance Building Department does not maintain a full online permit portal as of this writing. Most applications are filed in person at city hall, and the building official prefers to discuss complex projects (additions, new homes, anything with unusual site conditions) by phone or appointment before you submit. This is not a delay tactic — Severance's soil and drainage rules mean an hour of pre-application conversation often saves 4–6 weeks of back-and-forth in plan review. Call the building department, describe the project, and ask for a short phone consult or site visit. The response time is usually 2–3 business days.

Permit fees in Severance are based on project valuation (typically 1.5–2% of estimated construction cost) plus plan-review time. A simple deck or fence might run $150–$300 if it's low-risk; a new house or major addition will run $2,000–$5,000 depending on complexity and plan-review rounds. Geotech reports, structural plans, and site grading plans are your responsibility to commission and submit — the building department does not issue a permit until those are included. This front-loads the cost, but it eliminates the surprise rejections that plague other jurisdictions.

Most common Severance permit projects

Severance's boom in residential construction over the past ten years means the building department processes a steady stream of additions, decks, and new accessory buildings. Every project type—from a simple fence to a two-story addition—must account for the local soil and frost-depth rules. Below are the categories of work that typically require permits in Severance.

Severance Building Department contact

City of Severance Building Department
Severance City Hall, Severance, Colorado (verify exact address with city)
Search 'Severance Colorado building permit phone' to confirm current number
Monday–Friday, 8 AM–5 PM (verify locally; appointment recommended)

Online permit portal →

Colorado context for Severance permits

Colorado adopted the 2021 International Building Code with state amendments, which Severance follows. The state does not allow counties or cities to adopt older code editions — all new permits must use current IBC rules. This means Severance's 30–42 inch frost depth is evaluated against 2021 IRC R403.1.4.1 (footing depth and frost protection), and geotech reports must follow the code's foundation design standards. Colorado's Division of Housing and Building allows owner-builders to self-permit owner-occupied 1–2 family homes, but Severance's local rules still apply: geotech reports, structural plans, and drainage analysis are mandatory. The state also regulates water rights and stormwater discharge, which intersects with Severance's Poudre River basin rules — if your project involves any irrigation, drainage alteration, or runoff management, coordination with the state water board may be required. The Colorado Division of Safety and Industry provides loose oversight of building departments' permit administration, but Severance is responsible for its own inspection and enforcement.

Common questions

Why do I need a geotech report in Severance?

Severance sits on expansive bentonite clay with significant swelling potential when moisture changes. The building department requires an engineer's assessment of soil-bearing capacity and footing design for any new structure with a foundation—including additions, accessory buildings, and new houses. This prevents future foundation damage and cracking. Budget $1,200–$2,500 and 2–3 weeks for the engineer's site investigation and report.

What's the frost depth in Severance, and why does it matter?

Frost depth is 30–42 inches on the Front Range plateau where most of Severance is developed; it climbs to 60+ inches in the transitional and mountain zones. Footings must bottom out at or below frost depth to prevent frost heave (the upward soil movement that cracks foundations in winter). Unlike many jurisdictions, Severance enforces this strictly—the building department will reject footing details that don't account for site-specific frost depth.

Can I build an addition on top of my existing foundation if it's shallower than frost depth?

No. Any new addition must meet current frost-depth requirements, even if the existing house was built with a shallower foundation. If your existing foundation is at 24 inches and frost depth is 42 inches, your addition either must have 42-inch footings (which will make it taller and more expensive), or you must engineer a frost-protection system using rigid insulation. Talk to a structural engineer before you assume your existing foundation can support an addition.

How long does plan review take in Severance?

Standard plan review averages 3–4 weeks for permits that include geotech reports and site plans. Simple permits (fence, deck) may clear in 1–2 weeks. Multiple rounds of revisions can extend review to 6–8 weeks. The building department recommends a pre-application phone consult before you submit formal plans—this conversation often prevents major rejections and saves time overall.

Do I need a permit for a fence in Severance?

Most residential fences under 6 feet in rear yards do not require a permit if they don't interfere with drainage or sight lines. Fences over 6 feet, all front-yard fences, corner-lot sight-triangle fences, and any fence that alters site drainage typically require a permit. Call the building department or visit city hall to discuss your specific location before you build.

What about a deck or patio?

Attached decks over 30 square feet and/or more than 30 inches above grade require a permit in Severance. Detached decks and patios generally do not, unless they involve fill, grading, or drainage changes. The local frost depth means deck posts must go below 30–42 inches—not the IRC minimum of 12 inches. Get a pre-application nod from the building department if the deck height or location is unusual.

What happens if I skip the permit and build anyway?

Unpermitted work is costly. The building department can require you to remove the structure, hire a structural engineer to certify it retroactively, or pay fines and correction fees. More importantly, unpermitted work may not be insurable, complicates future home sales (title issues), and creates safety liability if someone is injured. If you've already built without a permit, contact the building department about a post-construction inspection—some jurisdictions allow retroactive compliance; Severance's policy depends on the work type.

Who pays for the geotech report, and when should I order it?

You pay for the geotech report—it's part of your project cost, not the building department's. Order it as soon as you own the property or have a signed contract. The engineer needs time to visit the site, review soil conditions, and issue a written report. Plan for 2–3 weeks. Once you have the geotech report, the structural engineer can design footings and the building department can review your plans without delays.

Can I act as my own contractor and pull a homeowner permit?

Yes, Colorado allows owner-builders to self-permit for owner-occupied 1–2 family homes. However, Severance's geotech and structural-plan requirements apply regardless of who's doing the work. You'll need to hire a structural engineer to design the foundation and footings based on the geotech report. Electrical and plumbing subpermits are typically required and must be pulled by licensed trades (not by the owner-builder). Check with the building department about your specific project scope.

Ready to move forward? Start here.

Before you commit to a design or hire a contractor, call the Severance Building Department and describe your project. A 15-minute conversation about soil conditions, frost depth, and drainage will save weeks of plan-review delays and thousands in redesign costs. Ask about pre-application consulting—the building official can often give you green-light guidance before you spend money on plans. Have your property address, project type, and rough scope ready when you call. If you're commissioning a geotech report or working with a structural engineer, ask the building department which firms they see most often in Severance; local engineers are familiar with the city's soil and frost rules and will write plans that sail through review.