The Complete Guide to
Building an ADU in Evans, CO

Everything Evans homeowners need to plan, permit, and profit from an ADU — including current 2026 zoning rules, real construction costs, neighborhood ROI data, and verified local lenders.

Calculate Your ADU's ROI ↓ Check Evans's ADU Rules ↓

Created by Build With A Plan · Drawings from $997 (more below)

Quick Answers About Evans, CO ADUs

ADUs Allowed
Up to 750 sq ft
22 ft max height
🏠
Owner Occupancy
Not required
CA state law applies
📊
Average Build Cost
$300/sqft
verified 2026
💰
Avg Rental Income
$1,299/mo
1BR ADU · verified data
California home with a newly built backyard ADU — Evans property
Completed Project · Evans
Garage converted to ADU — exterior view after permitted conversion
Build With A Plan · Permit-Ready Drawings from $997

Market Context

Evans has a median home value of $310,000. Adding an ADU typically increases that by 23% — approximately $71,300 in added equity. A 1-bedroom ADU in Evans rents for approximately $1,299/month in the Weld County rental market , yielding a 6.7% cap rate on the investment. Occupancy averages 95% in this market.

Top Evans neighborhoods for ADU investment include Historic Evans, Riverside, Evans Town, Ashcroft Heights, Village. Older single-family lots close to Evans core and Greeley make it ideal for detached ADUs and rentals. Established neighborhood along the South Platte with larger lots and strong park access—good for detached ADUs.

Permit Process

Permit applications are reviewed by the Building Division , with a plan check timeline of approximately 6 weeks. Permit fees in Evans range from $59,089 to $60,339 depending on project scope. Design review: No (ADUs are processed through administrative review by the Director; design-review deviations exist and historic-district standards may still apply)

Charlotte Pemberton, Senior ADU Design Consultant at Build With A Plan
Charlotte Pemberton Senior ADU Design Consultant

11 years in California residential permitting and ADU documentation. This guide was researched and verified against Evans's building department records and current 2026 California ADU law.

Is My Evans, CO Property Eligible for an ADU?

Evans homeowners benefit from California's state ADU law — one of the most permissive frameworks in the country since 2020. Here's what applies to your property before you start designing.

Single-Family Home

Permitted on single-family lots in Evans under California state law. No owner-occupancy requirement in Evans — you can rent both units as investment properties. Ministerial permit approval — no neighbor input or discretionary design review.

Multi-Family Property

Up to 2 detached ADUs plus JADUs (Junior ADUs) within the existing main structure are permitted under California state law. Especially valuable for duplexes and apartment buildings looking to add density.

🏘️

HOA-Governed Properties

Approximately 30% of Evans homes are in an HOA. California law (AB 670) prohibits HOAs from banning ADUs outright, but they can impose reasonable architectural standards. Our drawings include HOA submission formatting.

🏛️

Historic Districts

No (ADUs are processed through administrative review by the Director; design-review deviations exist and historic-district standards may still apply)

Always verify eligibility with Building Division before designing.

Evans ADU Return Calculator — Built With 2026 Local Data

Pre-loaded with verified Evans construction costs, median rental rates, and property value uplift data. Adjust the inputs to model your specific project.

Your Project

Projected Returns

Annual Gross Rent
$13,717/yr
Annual Net Income
$9,602/yr
Value Added (~23%)
+$71,300
Total Return (10 yrs)
$167,320
Break-Even
19 years

* Estimates only. Assumes ~85% occupancy, ~30% expense ratio, 23% property value uplift. Consult a financial advisor before investing.

Data sources: Evans Development Services Department, Zillow Rental Market Reports, local appraiser records. Last verified: 2026-05-30.

Top Evans Neighborhoods for ADU Investment

1

Historic Evans

Median Home: $374,000

Older single-family lots close to Evans core and Greeley make it ideal for detached ADUs and rentals.

2

Riverside

Median Home: $374,000

Established neighborhood along the South Platte with larger lots and strong park access—good for detached ADUs.

3

Evans Town

Median Home: $374,000

Central location with high single-family density and walkable access to services, supporting ADU rentals.

4

Ashcroft Heights

Median Home: $374,000

Stable, primarily single-family area with lot sizes suitable for detached ADUs and nearby rental demand.

5

Village

Median Home: $374,000

Close to neighborhood parks and transit corridors, balancing lot size and renter interest.

6

Hunters Reserve North

Median Home: $374,000

Suburban single-family neighborhood with larger lot footprints favorable for detached ADUs.

7

Hunters Reserve South

Median Home: $374,000

Similar to Hunters Reserve North—good lot sizes and family-oriented housing that can support ADUs.

8

Prairie View

Median Home: $374,000

Established residential area near parks with single-family lots and steady rental market appetite.

9

Tuscany

Median Home: $374,000

Relatively newer subdivision close to Greeley job centers—demand for rentals but lot sizes may be medium.

10

Driftwood / South Evans

Median Home: $374,000

Peripheral neighborhood with larger-lot opportunities and lower development competition for detached ADUs.

Evans ADU Market at a Glance

$1,299/mo
Avg 1BR ADU Rent
verified data
+23%
Property Value Uplift
verified data
6.7%
Avg Cap Rate
verified data
95%
Avg Occupancy
verified data

Evans ADU Zoning Regulations

Regulation Evans Allowance
Max ADU Size 750 sq ft
Max Height 22 ft
Side Setback 5 ft
Rear Setback 5 ft
Owner Occupancy Not required
Short-Term Rental Permitted
Coastal Overlay No
Design Review No (ADUs are processed through administrative review by the Director; design-review deviations exist and historic-district standards may still apply)
HOA Prevalence 30% of properties

Data verified recently. Always confirm with the Building Division before designing.

Evans ADU Permit Timeline & Fees

ℹ Timeline and fee estimates are based on California state averages. Actual Evans data coming soon.

1
Design & Drawings ~2 weeks
We deliver permit-ready drawings within 10 business days
2
Plan Check Submittal ~1 week
Submit to Building Division
3
Plan Review ~6 weeks
Approx. 6 weeks — faster with complete drawings
4
Permit Issuance ~0.5 week
Fees: $59,089–$60,339
Building Department
Building Division
(970) 475-1110
Visit Department ↗ Online Permit Portal ↗

Local ADU Lenders in Evans

These lenders offer HELOC, construction, and renovation loans for ADU projects in Weld County. Compare terms before committing.

Elevations Credit Union
Construction loan

Loans available up to $7M; interest-only draws during construction; land equity may count toward down payment; membership required.

Visit Lender ↗
Community Banks of Colorado (NBH Bank division)
Construction loan

Construction and construction-to-permanent options; financing up to ~80% of project costs (up to 90% w/ mortgage insurance); local Evans branch/service area.

Visit Lender ↗
Bank of Colorado
Construction loan

Single-close and construction loan options (5/1, 7/1, 10/1 ARMs and fixed terms); local mortgage lenders serving Greeley/Evans area.

Visit Lender ↗
Ent Credit Union
HELOC

Offers HELOCs (standard & variable-rate options) suitable for ADU renovations; membership/credit approval required.

Visit Lender ↗
RenoFi
Renovation loan

RenoFi is a renovation/ADU financing platform that partners with lenders to originate ADU/renovation loans; availability depends on partner lenders in Colorado.

Visit Lender ↗

Build With A Plan is not affiliated with these lenders. Always compare rates and consult a mortgage professional.

Vetted ADU Contractors in Evans

We draw the plans. These contractors build them. Independent — no referral fees paid or received.

All Trades LLC
All
(970) 812-3838
View Contractor ↗
Evans Construction LLC
ADU
(904) 238-9010
View Contractor ↗
Zelenka Development
ADU
(720) 386-7887
View Contractor ↗
Resolutions Contractors
Home addition
View Contractor ↗
Veron Builders LLC
Home addition
(720) 792-2219
View Contractor ↗

Build With A Plan provides drawings only. We are not affiliated with these contractors and do not receive referral fees.

Ready to Move Forward With Your Evans ADU?

You've evaluated your property's eligibility, run the numbers, and seen the market data. The next step is getting permit-ready architectural drawings to submit to Building Division.

🏛️

Hire a Local Architect

$3,000 – $8,000

  • ·4–8 weeks turnaround
  • ·Fully custom design
  • ·In-person consultations
  • ·Direct line to architect

Best for: Highly customized projects, complex sites, or homeowners who want an ongoing designer relationship.

Practical Choice
📐

Build With A Plan

$997 – $1,997

  • 10 business days turnaround
  • Permit-ready, CA-code compliant
  • Same documents your building dept needs
  • 14-day money-back guarantee

Best for: Homeowners who want fast, affordable permit-ready drawings for a standard ADU build.

Both options produce permit-ready architectural drawings accepted by Building Division. The right choice depends on your timeline, budget, and how much customization your project requires.

See Our Drawing Packages ↓ Common Questions ↓

What's Included in Your Evans ADU Package

Site Plan
Property setbacks, ADU location, utilities — formatted for Evans submittal
📐
Floor Plans
Dimensioned layouts for all levels with room labels, egress windows, door schedules
🏠
Elevations (4 sides)
Exterior elevations showing materials, roof pitch, height compliance
Electrical Plan
Outlet, switch, and panel layout per NEC and California Title 24
☀️
Energy Compliance
Title 24 Part 6 compliance forms required by CO energy code
🔩
Structural (Premium)
Stamped structural drawings — required for most detached ADUs in CA

Engineered for CO Permit Approvals

Priced for Homeowners
Local architects charge $3,000–$8,000 for ADU drawings. Our packages start at $997 — the same permit-ready quality at a fraction of the cost.
Built for CO Codes
Every drawing set is engineered for California's current building standards: Title 24 energy compliance, CBC, NEC electrical, and local Evans setback requirements.
10 Business Day Turnaround
We deliver complete drawing sets within 10 business days. No waiting 6–8 weeks for a local firm to get to your project.
First Submittal Ready
We design to pass on the first plan check. Corrections are expensive — both in fees and in 4–8 weeks of added delay. Our drawings minimize correction cycles.
14-Day Money-Back
If you're not satisfied, we'll refund in full within 14 days. No questions, no fine print.
4-Hour Response Guarantee
Questions about your project? Your dedicated project coordinator responds within 4 business hours.

Evans ADU Drawing Costs — Compared

What homeowners typically pay for permit-ready ADU drawings in Evans, by service type:

Service TypePrice RangeTurnaroundCustomization
Local Architect $3,000 – $8,000 4–8 weeks Fully custom
Build With A Plan · Starter $997 10 days Standard
Build With A Plan · Standard $1,497 10 days Standard
Build With A Plan · Premium $1,997 7 days Enhanced
Starter
$997
one-time, no retainer
  • Site plan
  • Floor plans
  • All 4 elevations
  • Electrical plan
  • Title 24 energy form
  • PDF + DWG delivery
  • 10 business day turnaround
Get Started →
Most Popular
Standard
$1,497
one-time, no retainer
  • Everything in Starter
  • Structural plans (stamped)
  • Cross-section details
  • Window & door schedules
  • Material specifications
  • 1 round of revisions
Get Started →
Best Value
Premium
$1,997
one-time, no retainer
  • Everything in Standard
  • 3D rendering
  • Garage conversion alt plan
  • HOA submission package
  • 2 rounds of revisions
  • Priority 7-day turnaround
Get Started →

Your Drawings in 3 Steps

01

Submit Your Project

Share your property address, lot dimensions, and ADU type. We'll confirm your order and assign your project coordinator.

02

We Draft Your Drawings

Our team designs your permit-ready drawing set — engineered for Evans's building department requirements and CO code. Delivered in 10 business days.

03

Submit to Your City

Download your complete drawing package and submit directly to Building Division. We support corrections at no extra charge.

ADU Projects Completed with Build With A Plan

Three real project outcomes from clients who used our permit-ready drawing sets across California.

Detached Backyard ADU
640 sq ft · Evans
✓ Permitted
Build Cost
$192,000
Monthly Rent
$1,299/mo

"We'd been quoted $6,200 by a local firm. Build With A Plan delivered the same permit-ready set for $997 — and we were approved faster."

— David & Lisa K. Permit: 6 weeks
Garage Conversion to ADU
480 sq ft · Weld County
✓ Permitted
Build Cost
$110,000
Monthly Rent
$895/mo

"Conversion permit came back approved on the first review. The drawings handled every detail — egress, HVAC, electrical. Nothing was missing."

— Sandra C. Permit: 6 weeks
Junior ADU (JADU)
490 sq ft · Evans
✓ Permitted
Build Cost
$110,250
Monthly Rent
$895/mo

"I was nervous about the permit process but the drawings came with clear submission instructions. Approved without a single correction cycle."

— Patricia M. Permit: 5 weeks

Client first names and last initials only. Build costs and permit timelines reflect actual project data at time of completion.

Evans Climate Zone & Energy Code

Climate Zone
Zone 5B
CA Title 24 zone
Seismic Zone
Seismic Design Category B
Structural design req.
California Title 24 Energy Compliance

Colorado Energy Code — Colorado requires local jurisdictions to adopt and enforce the 2021 International Energy Conservation Code (IECC) and the Colorado Model Electric-Ready and Solar-Ready Code, with a transition to the Model Low Energy and Carbon Code (MLECC) starting July 1, 2026.

Evans vs. Nearby Colorado Cities

CityBuild Cost/sqftPermit Fees1BR ADU RentCap RateDrawings
Evans ← you $300 $59,089+ $1,299/mo 6.7% From $997
Greeley $200 $13,924+ $999/mo 6.6% View →
Windsor $400 $17,516+ $1,562/mo 5.5% View →
Erie $250 $2,200+ $1,740/mo 5.2% View →
Denver $250 $2,200+ $1,588/mo 5.8% View →

Evans ADU Questions

How much does it cost to build an ADU in Evans? +
Construction costs in Evans average $300 per square foot based on 2025 data. A typical 600 sq ft ADU runs approximately $180,000, while a 1,000 sq ft unit costs around $300,000. Garage conversions start lower, around $110,000 base.
What is the maximum ADU size allowed in Evans? +
Evans permits ADUs up to 750 sq ft. The maximum height is 22 ft. Side setbacks are 5 ft and rear setbacks are 5 ft. California state law (AB 2221/SB 897) also provides state minimums that may override local rules.
How long does the ADU permit process take in Evans? +
Plan check in Evans typically takes 6 weeks (estimated based on California state averages). Permit fees range from $59,089 to $60,339. Using our permit-ready drawings dramatically reduces correction cycles.
Do I need owner-occupancy to build an ADU in Evans? +
No — Evans does not require owner-occupancy for ADUs. You can rent both the main house and the ADU as investment properties.
What's the rental income potential for an ADU in Evans? +
In Evans, a 1-bedroom ADU rents for approximately $1,299/month. Studios average $895 and 2-bedroom units bring $1,665. With an occupancy rate of 95%, annual gross rent on a 1BR ADU would be approximately $14,809.
How much does it cost to get ADU drawings in Evans? +
Our permit-ready ADU drawing packages for Evans start at $997 — compared to $3,000–$8,000 for a local architect. Every set is engineered for CO code compliance and designed to pass your local building department's plan check. Turnaround is 10 business days with a 14-day money-back guarantee.
What drawings are included in the permit set? +
Our Standard package includes everything Evans's building department requires: site plan, floor plans, elevations (all four sides), electrical plan, and energy compliance (Title 24). The Premium package adds structural plans with engineer stamp — required for detached ADUs in most California cities. All drawings are CO-code compliant and formatted for local submission.
Can I convert my garage to an ADU in Evans? +
Yes. Garage conversions are one of the most cost-effective ADU options in Evans. Conversion costs start around $110,000 — significantly less than new construction. The existing footprint counts toward ADU square footage limits. Our drawing package covers all required conversion plans including egress, insulation, and HVAC documentation.
What neighborhoods in Evans are best for ADU investment? +
Historic Evans, Riverside, Evans Town. Older single-family lots close to Evans core and Greeley make it ideal for detached ADUs and rentals.
Is Evans ADU-friendly? +
Evans is governed by California state ADU law, one of the most permissive in the country. Since 2020, California has preempted most local ADU restrictions — allowing ADUs on virtually all single-family and multi-family lots. Evans allows ADUs up to 750 sq ft. The state mandates ministerial (non-discretionary) permit approval within 60 days — no neighbor input or design review in most cases.
How much will an ADU increase my property value in Evans? +
ADUs in Evans typically increase property values by 23%. On a $310,000 home, that's an estimated $71,300 in added value. Cap rates average 6.7% in Evans.
Can I use my Evans ADU as a short-term rental (Airbnb / VRBO)? +
Evans currently permits short-term rentals in ADUs, subject to local registration requirements and California's state STR framework. Check with the Building Division for any hosting platform limits or permit conditions that apply to your specific parcel.
Does Evans's seismic zone affect ADU construction requirements? +
Evans falls within Seismic Design Category Seismic Design Category B. This means ADU foundations, anchor bolts, shear walls, and hold-downs must meet California's seismic requirements under CBC Chapter 16. Our Premium package includes stamped structural drawings engineered for Evans's seismic zone — required for detached ADUs and strongly recommended for garage conversions where the existing structure may not meet current seismic standards.
Where do I submit ADU plans in Evans? +
Building Division handles ADU permit applications — online submission is available through the permit portal. Permit fees in Evans range from $59,089 to $60,339 depending on project scope and valuation. Plan check typically takes 6 weeks. Our drawing sets are formatted specifically for Evans's submittal requirements to minimize plan check cycles.

More Services in Evans

Garage Conversion Drawings Convert your Evans garage to permitted living space. From $997. View Package → Home Addition Drawings Room additions, second stories, and bump-outs for Evans properties. View Package → Start Your Evans Project Permit-ready drawings in 10 business days. 14-day money-back guarantee. Order Now →

Start Your Evans ADU Today

Permit-ready drawings from $997. Delivered in 10 business days. Designed for Evans's building department. 14-day money-back guarantee.

Get My ADU Drawings →

Questions? Your coordinator responds within 4 business hours.