(720) 287-7958

DESIGN · BUILD · AUTOMATE

ERIE SERVICES

Erie ADU / backyard cottage — local feasibility & estimate

ADU Feasibility Consultation, $350

Compare both studies

Exploring a backyard ADU in Erie? Autotelic helps assess feasibility against lot, setbacks, HOA, and local rules—then provides a clear estimate and build path with one team. No fake zoning envelopes. No invented prices or license claims.

What Erie requires

RR — Minimum Lot Area: 80000 sf RR

See full local requirements ↓
  • Full Design Lifecycle
  • Construction & Tenant Finish
  • Smart Home · A/V · Edge Compute
ADU / Backyard Cottage

Build an income-producing unit in your backyard

Book an ADU feasibility study

Two fixed-price studies, booked online before you pay for design: a site visit with a go/no-go read on your lot, or a written report you can take to a lender.

Pay when you book. We confirm within 24 hours or refund you in full.

  • ADU Feasibility Consultation

    An on-site review of your lot against local ADU zoning, setbacks, and utility access.

    Pay when you book · morning (8–12) or afternoon (12–4)

    What's included

    An on-site review of your lot against local ADU zoning, setbacks, and utility access. You get a verbal go/no-go read plus a one-page summary of constraints and next steps.

  • ADU Feasibility Package

    Site visit plus a written feasibility report: local ADU zoning check, buildable envelope sketch, utility routing notes, and a preliminary budget.

    $475 deposit to book, the rest when the work is done · morning (8–12) or afternoon (12–4)

    What's included

    Site visit plus a written feasibility report: local ADU zoning check, buildable envelope sketch, utility routing notes, and a preliminary budget. A documented go/no-go you can take to a lender.

Studies for additions, custom homes and commercial space

FREE PLANNING TOOLS

Both tools are free and take a couple of minutes — start in either one.

Local Service

ADU / Backyard Cottage Services in Erie, Colorado

Autotelic provides professional ADU / backyard cottage services throughout Erie and the surrounding Boulder/Weld County area. Accessory dwelling unit construction across the Denver metro — detached new builds, garage conversions, and basement conversions compliant with Colorado HB 24-1152. One veteran-owned design-build team runs the full Denver sequence under a single contract: zoning verification and concept design, municipal zoning and building permit reviews, then construction and inspections through certificate of occupancy. Whether you're in Erie (fast-growing between Denver and Boulder) or nearby communities, our team delivers quality workmanship, licensed and insured.

Permit Thresholds

Erie permit thresholds

Code reference
The Town of Erie has adopted the 2021 International Residential Code (IRC).
Code reference
Roofing (more than 1 square aggregate)
Code reference
Retaining walls over 4 feet from the bottom of the trench to the top of the wall
Code reference
Detached accessory structures 200 sq. ft. or less (not including patio covers, and provided there is no electrical and/or plumbing work)
Code reference
Minor fence repair (3 sections or less)
Code reference
Minor roof repairs (1 square or less)
Code reference
Decks, platforms, walks, and driveways not more than 30 inches above grade and not over any basement or story below
Code reference
Examples of square foot construction costs for valuation (as of January 1, 2026):

Codes are amended regularly — verify current requirements with **Town of Erie Building Division (Town of Erie, Colorado).

Zoning & ADU

Erie zoning & ADU quick facts

RR — Minimum Lot Area
80000 sfRR
RR — Minimum Lot Width
150'RR
RR — Front Setback (min)
40'RR
RR — Side Interior Setback (min)
40'RR
RR — Side Setback Abutting Street (min)
20'RR
RR — Rear Setback (min)
40'RR
RR — Building Height (max)
40'RR
ER — Minimum Lot Area
40000 sfER
Town of Erie UDC Title 10 Chapter 4 (Ord. 03-2022; current through Jun 10, 2026) RR setback standards (Tables 4-1, 4-2, 4-3 Dimensional Standards) — effective 2022-02-18 · Town of Erie UDC Title 10 Chapter 4 (Ord. 03-2022; current through Jun 10, 2026) ER setback standards (Tables 4-1, 4-2, 4-3 Dimensional Standards) — effective 2022-02-18Source: library.municode.com

Codes are amended regularly — verify current requirements with **Town of Erie Building Division (Town of Erie, Colorado).

A recent build

Backyard ADU in Denver

Denver · 2026

Status
Under construction — 2026
Managed on
Buildbot — Autotelic’s own PM platform
  • Architecture, site plans, and full MEP design completed in-house
  • Permits pulled — electric and plumbing rough-ins permitted and underway
  • Spray-foam insulation and exterior work in progress
  • First project managed end-to-end on Buildbot, Autotelic’s construction-PM platform

A ground-up backyard ADU in Denver — designed, permitted, and now under construction by Autotelic, and the first project managed end-to-end on Buildbot, Autotelic’s own construction-management platform.

Energy Code

Erie energy code quick facts

Code reference
The Town of Erie, Colorado, has adopted the 2024 International Energy Conservation Code (IECC) with local amendments, effective April 24, 2026.
Code reference
This adoption was approved by the Erie Town Council via Ordinance No. 12-2026.Ord. No. 12-2026
Code reference
Erie is located in Climate Zone 5B.
Code reference
While Erie has adopted the 2024 IECC with local amendments, the specific details of these amendments relevant to prescriptive requirements for remodels and additions were not detailed in the publicly available information.
Code reference
Therefore, the following prescriptive requirements are based on the base 2024 IECC for Climate Zone 5B, which Erie adopted, and are subject to any specific local modifications enacted through Ordinance No. 12-2026.Ord. No. 12-2026
Wall Insulation (Residential)
The building thermal envelope for walls shall meet requirements specified in Table R402.1.2.
Code reference
A common prescriptive option for framed walls in Climate Zone 5B is R-20 continuous insulation, or R-13 cavity insulation plus R-5 continuous insulation (denoted as "13&5").
Code reference
The 2024 IECC also offers additional flexibility for wall insulation in Climate Zones 4 and 5 if additional credits are achieved.
Ord. No. 12-2026

Codes are amended regularly — verify current requirements with **Town of Erie Building Division (Town of Erie, Colorado).

Service Area

Serving Erie and Boulder/Weld County

We serve Erie, 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 Erie project.

FAQ

ADU feasibility FAQ

How much does ADU Feasibility Consultation cost in Erie?

$350.

How do I book?

Press Book next to the job, pick a date and a morning (8–12) or afternoon (12–4) window, and pay in full. We confirm within 24 hours or refund you in full.

Can I build an ADU on my lot?

It depends on lot size, setbacks, HOA rules, and Erie’s code. Autotelic helps assess feasibility—we do not invent zoning envelopes or guarantee permit outcomes.

Is the online sizing tool a permit determination?

No. Lot-aware sizing on /adu/ is illustrative only and is not a permit determination. A clear estimate and local review come next.

What happens after I start an estimate?

You move from feasibility into a clear estimate with the same design-build team, then permit coordination and build with a licensed Denver-metro crew when you proceed.

What will an ADU cost?

The lot lookup is free. Our ADU cost page shows planning ranges for a detached backyard cottage; your lot, utility connections and finishes affect the price. Start an estimate for your project, or call (720) 287-7958 to talk it through. A fixed-price build proposal comes after feasibility.

How long does an ADU project take?

First we check your lot and agree on the scope. Then come design and drawings, city permit review, and construction with inspections. Your lot, utility connections, design changes and the city’s review schedule affect the timing. Your proposal includes a project-specific schedule before you commit to the build. A consultation booking is the first planning conversation, not a construction start date.

Who builds the ADU?

Autotelic’s local design-build team takes your project from the first concept through an estimate, permits and construction. You have one team to talk to along the way.

Do you handle ADU permits and inspections?

Yes — ADU permitting is municipal, and we manage zoning review, permit application, and every inspection through certificate of occupancy.

Detached, attached, or garage conversion — which is right?

Each has different zoning, cost, and site implications. We design all three and recommend based on your lot, budget, and how you plan to use the unit.

How small a lot can support an ADU?

Smaller than most people assume — many Front Range single-unit lots that owners write off can carry a detached unit, and each city sets its own minimum lot size, setbacks, and building coverage. Whether your district’s standards leave room for a backyard cottage — or point you toward a garage or basement conversion instead — is exactly what the feasibility check answers for your address.

What is the ADU permit process?

Two municipal reviews run in order: a zoning review confirming the unit fits your district’s standards, then a building permit review of the construction documents, with inspections during the build and a certificate of occupancy at the end. Colorado HB 24-1152 now requires most Front Range municipalities to allow ADUs on single-unit lots, and we confirm how your city implements it as the first step of feasibility.

How It Runs

01

Survey

02

Design

03

Build

04

Verify

DESIGN SERVICES

CONSTRUCTION

TECHNOLOGY