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LOUISVILLE SERVICES

Excavation in Louisville

Licensed excavation services for Louisville and Boulder County. Groundwork done right.

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Excavation

Groundwork done right

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Local Service

Excavation Services in Louisville, Colorado

Autotelic provides professional excavation services throughout Louisville and the surrounding Boulder County area. Foundation excavation, utility trenching, grading, and backfill services for residential and commercial construction. Whether you're in Louisville (between Denver and Boulder) or nearby communities, our team delivers quality workmanship backed by Colorado licensing and full insurance coverage.

Permit Thresholds

Louisville permit thresholds

Code/municipal code sections
Louisville Municipal Code Chapter 15 (Buildings and Construction), which incorporates the 2024 ICC codes (IBC, IRC, IECC, IEBC, etc., effective December 6, 2025) with local amendments via Ordinance 2025-1907 (No. 1907-2025).Ordinance 2025-1907
Building permit fee follows a progressive table (e.g., $0–$500
$28; higher brackets up to $1M+ with per-$1,000 increments; exact amounts per the published schedule).
Plan review (in-house)
65% of the building fee.
Boulder County Use Tax
1.185% of 50% of Total Valuation.
City of Louisville Use Tax
3.775% of 50% of Total Valuation.
Code reference
Impact fees may apply for additions or remodels increasing finished floor area over 500 sq ft (per category tables; first 500 sq ft often exempt).
Ordinance 2025-1907Source: louisvilleco.gov

Codes are amended regularly — verify current requirements with **The City of Louisville, Colorado’s Building Safety Division (part of the city government) issues residential building permits.

Energy Code

Louisville energy code quick facts

Code reference
2024 International Energy Conservation Code (IECC), effective December 6, 2025 (adopted via the City of Louisville’s 2024 ICC Code Adoption ordinance), along with the Colorado Model Electric Ready and Solar Ready Code (also effective 12/6/25).
Code reference
Louisville is in Climate Zone 5B.
Code reference
The 2024 IECC (with the model ready codes) applies to new construction and, via Chapter 5 [RE], to additions, alterations, and remodels involving the building thermal envelope.
Code reference
Key prescriptive requirements relevant to remodels/additions (drawn from 2024 IECC Table R402.1.2 and related sections for CZ 5 / 5B; additions must meet these for new envelope areas or the whole-building UA alternative):
Ceiling/attic insulation
Maximum assembly U-factor 0.026 (2024 IECC Table R402.1.2).
Wood-frame wall insulation
Maximum assembly U-factor 0.045 (or equivalent prescriptive R-value combinations such as R-20 + R-5ci or R-13 + R-10ci; note R408 tradeoffs may allow reduced wall performance with additional measures) (2024 IECC Table R402.1.2 and R408).
Vertical fenestration (windows/doors)
Maximum U-factor 0.28 (2024 IECC Table R402.1.2).
Skylights
Maximum U-factor 0.50 (2024 IECC Table R402.1.2).

Codes are amended regularly — verify current requirements with **The City of Louisville, Colorado’s Building Safety Division (part of the city government) issues residential building permits.

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What excavation work covers

Excavation in the Denver metro includes foundation cut, site grading, utility trenches, benching, sloping, and shoring when soils or lot-line conditions require it. Neighboring structures, utilities, and the public right-of-way often drive method. A municipally licensed Denver general contractor coordinates earthwork and licensed specialty trades. Cost is project-specific and depends on depth, soils, and protection of adjacent property.

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When shoring and extra permits show up

Denver CPD commonly treats excavation, benching, or shoring as a separate permit when the cut is more than 4 feet deep, closer than 4 feet to a lot line, or steeper than 1.5 horizontal to 1 vertical. IRC houses follow building-code policy ADMIN 130/131 and DCBC 3307; those details often ride with the residential construction permit, with excavation issued first. Shoring and soils packages are typically sealed by design professionals. Work that abuts the public ROW may need a DOTI excavation bond; shoring that enters the ROW needs a temporary shoring ROW permit.

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Permits and who coordinates the work

City and County of Denver Community Planning and Development reviews excavation and shoring. Denver DOTI reviews Sewer Use and Drainage (SUDP) for excavations, grading, floodplain, groundwater, and ROW impacts. The residential permitting guide also calls for DDPHE review on excavations. Check floodplain status at denvergov.org/flood before drawing. Cities and counties license general contractors. Colorado has no statewide general contractor license. Autotelic acts as a municipally licensed Denver general contractor and coordinates licensed specialty trades for excavation scopes.

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What buyers should prepare

Proposed depth, distance to lot lines, any soils report, photos of neighboring structures, and whether the dig will touch the alley or street.

FAQ

Common questions

Do I need a separate excavation permit in Denver?

Often yes when the cut is over 4 feet deep, close to a lot line, or steeper than 1.5 to 1. Houses may include excavation details with the building permit, with excavation issued before construction.

Who handles excavation permits and licensing?

A municipally licensed Denver general contractor coordinates the project and licensed specialty trades. Colorado has no statewide general contractor license.

What is SUDP doing on a dig?

DOTI reviews sewer, storm grading, floodplain, groundwater, and ROW impacts for excavations. It is a separate review that typically runs with the building package.

When is shoring required?

When slopes cannot be laid back to the allowed ratio, when the cut is near a lot line or structure, or when the soils report requires it. Design professionals seal those packages.

What information helps define scope?

Depth, lot-line clearance, floodplain status, existing utilities, and city or county.

Service Area

Serving Louisville and Boulder County

We serve Louisville, CO and all surrounding Denver metro communities. Our team is based in Denver and operates throughout the Front Range, from Castle Rock to Longmont and everywhere in between. Contact us for a free estimate on your Louisville project.

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