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ENGLEWOOD SERVICES

Englewood ADU / backyard cottage — local feasibility & estimate

ADU Feasibility Consultation, $350

Compare both studies

Exploring a backyard ADU in Englewood? 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 Englewood requires

R-1-A — Minimum Lot Area: 9000 sf R-1-A

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 Englewood, Colorado

Autotelic provides professional ADU / backyard cottage services throughout Englewood and the surrounding Arapahoe 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 Englewood (south central Denver metro) or nearby communities, our team delivers quality workmanship, licensed and insured.

Permit Thresholds

Englewood permit thresholds

Code reference
In Englewood, Colorado, building permits for residential remodel work are generally required based on the specific type of work performed rather than a fixed valuation threshold. The City requires permits for most construction projects to ensure compliance with adopted building codes (including
Code reference
Repair of roofing or siding when the repaired area is less than 100 square feet.
Code reference
Decks under 200 square feet that are not attached to the house, do not serve an exit door, and are not more than 30 inches above grade (zoning approval still required).
Code reference
The City’s use tax rate is 3.80% applied to 50% of the project valuation (an estimate assuming 50% of valuation represents taxable construction materials).
Code reference
A reconciliation process is available post-project if actual materials differ from the 50% estimate.
Code reference
Relevant references include the City’s “To Permit or Not To Permit” guidance and the Sales, Use and Other Taxes page (with citations to EMC Title 4, Chapter 4 for sales/use tax rules).

Codes are amended regularly — verify current requirements with **The City of Englewood’s Building and Codes Division (part of the Community Development Department) issues residential building permits.

Zoning & ADU

Englewood zoning & ADU quick facts

R-1-A — Minimum Lot Area
9000 sfR-1-A
R-1-A — Minimum Lot Width
75'R-1-A
R-1-A — Front Setback (min)
25'R-1-A
R-1-A — Side Interior Setback (min)
7'R-1-A
R-1-A — Rear Setback (min)
20'R-1-A
R-1-A — Lot Coverage (max)
40%R-1-A
R-1-A — Building Height (max)
30'R-1-A
R-1-A — Bulk Plane Front 60% Height at Side Lot (Table 5-5)
12'R-1-A
Englewood Municipal Code Title 16 UDC §16-5-3 Table 5-2 (current through Mar 18, 2026) R-1-A setback standards (Table 5-2 Residential Building and Lot Standards) — effective 2026-03-18Source: library.municode.com

Codes are amended regularly — verify current requirements with **The City of Englewood’s Building and Codes Division (part of the Community Development Department) issues residential building permits.

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

Englewood energy code quick facts

Code reference
2024 International Energy Conservation Code (IECC), adopted by the City of Englewood with no specific local amendments detailed on the official building division page (effective for all permits submitted after May 31, 2026).
Code reference
This applies to the Denver-metro area (Climate Zone 5B).
Code reference
Key prescriptive requirements from the 2024 IECC (relevant to remodels/additions via the residential or existing-building provisions, e.g., R402 and related sections) include the following (standard base-code values, as no local amendments are specified):
Code reference
Vertical fenestration U-factor ≤ 0.28 (Table R402.1.2, Climate Zone 5 and Marine 4).
Code reference
Skylight U-factor ≤ 0.50 (Table R402.1.2, Climate Zone 5 and Marine 4).
Code reference
Air leakage ≤ 3.0 ACH50 at 50 Pa for detached one-family dwellings in Climate Zones 3–5 (or ≤ 0.27 cfm/ft² of enclosure area for smaller homes/attached units); testing required (R402.4.1.2).
Code reference
Additional common prescriptive envelope items (from 2024 IECC Tables R402.1.2/R402.1.3 for CZ 5) typically cover ceiling/attic, wall, and other assemblies, but exact R-values/U-factors should be verified directly from the adopted code edition as they involve trade-offs and footnotes.

Codes are amended regularly — verify current requirements with **The City of Englewood’s Building and Codes Division (part of the Community Development Department) issues residential building permits.

Service Area

Serving Englewood and Arapahoe County

We serve Englewood, 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 Englewood project.

FAQ

ADU feasibility FAQ

How much does ADU Feasibility Consultation cost in Englewood?

$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 Englewood’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

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Survey

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Design

03

Build

04

Verify

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