Home Addition Drawings · Englewood, CO
Permit-Ready Home Addition
Drawings for Englewood, CO
Expand your home with a permitted room addition, second story, or family room extension. We deliver complete, code-compliant drawing sets for Englewood's building department — in 10 business days, starting at $1,497.
14-day money-back guarantee · 10 business day turnaround
Local Intelligence
What Englewood Homeowners Need to Know Before Submitting
Size & Zoning Rules
Any new square footage added to your Englewood home counts against the same zoning envelope that governs ADU size, meaning large additions may affect your ability to add a future ADU. Englewood's current ADU size cap is 800 sq ft — within the typical range for most floor plan configurations.
Englewood does not impose an owner-occupancy requirement, so you can rent both the main home and any ADU or conversion as investment units.
If the addition creates a second unit or is later converted to a rental, Englewood's ADU market supports approximately $1,891/month for a 2-bedroom unit.
Permit Process & Fees
Building & Codes permit fees for this project type typically range from $2,510 to $5,119 depending on project valuation and scope. Plan check runs approximately 6 weeks — though each correction cycle adds 3–6 weeks, which is why code-compliant drawings matter so much.
Addition permit packages submitted to Building & Codes must include a site plan, floor plans, all four elevations, an electrical plan, and energy compliance documentation — plus stamped structural drawings are always required for any load-bearing elements, second-story work, or new foundation.
Visit Building & Codes ↗Construction Cost Context
Englewood's home addition construction costs run $210–$336 per square foot — a wide range driven by labor markets, local code complexity, and finish level. Our drawings are priced at a fraction of what a full-service architect would charge to produce the same permit set.
⚠ Common Pitfall in Englewood
Englewood's Building & Codes department requires a separate sewer tap or service line evaluation for most detached ADUs, and if your home is on an older 4-inch lateral common in the neighborhoods east of Broadway, South Platte Renew (the regional sewer authority) may require an upsizing before they'll sign off — that's a cost most homeowners don't budget for. You'll also want to check your specific lot's zone district carefully, since Englewood's ADU ordinance ties allowable size to lot size and existing house footprint, and the planner reviewing your submission will kick it back for revised drawings if your square footage math doesn't match their formula exactly. Because STRs are allowed here, plan for a separate business license and lodger's tax registration through the city if you intend to rent the ADU short-term, which is a step people often only discover after their certificate of occupancy is issued.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, that 6-week plan check window and $300/sqft figure are Englewood state-level estimates rather than verified local numbers, so I'd call Building & Codes directly and get a couple of local contractor quotes before penciling in a budget or start date — I've seen incomplete drawing sets push that timeline out several extra weeks even without a coastal overlay to worry about here."
Market Context
Englewood has a median home value of $430,000. Comparable renovation projects in this market typically add 22% to resale value.
Neighborhoods in Englewood with the strongest home addition and resale value potential include Arapahoe Acres, Bates-Logan Park, Medical District, Cushing Park, South Broadway Heights. Large single-family lots and mid-century homes make it ideal for detached ADUs near transit corridors.
Permit Process
Permit applications are reviewed by the Building & Codes, with a plan check timeline of approximately 6 weeks. Permit fees in Englewood range from $2,510 to $5,119 depending on project scope. Design review: Yes - in historic districts only.
Englewood falls within Seismic Design Category Typically Seismic Design Category B (site-specific SDC must be confirmed using ASCE/USGS design maps), which affects structural requirements for any new addition tying into the existing structure.
Local Financing Resources
Local Home Addition Lenders in Englewood
These lenders offer HELOC, construction, and renovation loans for home addition projects in Arapahoe County. Compare terms before committing.
Local Englewood/DTC credit union offering HELOCs (promotional rates as low as 4.25% APR; standard variable HELOC rates shown ~7.14%+); membership required.
Visit Lender ↗Regional Colorado credit union offering HELOCs and home equity loans (also lists construction loan options and remodel financing).
Visit Lender ↗Regional credit union serving Colorado with HELOCs (page lists variable and standard rate ranges e.g. 6.50%–9.00% on HELOC products) and online application.
Visit Lender ↗Local bank offering construction-to-permanent and residential construction loans (single-close options to convert to a permanent mortgage), with Denver-metro branches including Englewood.
Visit Lender ↗Specialty ADU/renovation fintech: offers renovation HELOCs and fixed renovation home equity loans via partner credit unions/lenders (uses after-renovation value; 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.
Local Build Partners
Vetted Home Addition Contractors in Englewood
We draw the plans. These contractors build the addition. Independent — no referral fees paid or received.
Build With A Plan provides drawings only. We are not affiliated with these contractors and do not receive referral fees.
Drawing Package Details
What's Included in Your Englewood Home Addition Package
Transparent Pricing
Englewood Home Addition Drawing Packages
One-time fee. No retainer. No hourly billing.
- ✓Site plan
- ✓Floor plans (existing + proposed)
- ✓All 4 elevations
- ✓Electrical plan
- ✓Title 24 energy compliance
- ✓PDF + DWG delivery
- ✓10 business day turnaround
- ✓Everything in Starter
- ✓Stamped structural drawings
- ✓Foundation plan
- ✓Roof framing plan
- ✓Window & door schedules
- ✓1 round of revisions
- ✓Everything in Standard
- ✓3D rendering
- ✓Cross-section details
- ✓Material specifications
- ✓HOA submission package
- ✓2 rounds of revisions
- ✓Priority 5-day turnaround
After You Order
Your Addition Drawings in 3 Steps
Submit Your Project Details
Share your property address, existing floor plan (if available), and the addition scope. We assign your project coordinator within 4 business hours.
We Draft Your Drawings
Our team designs your complete addition drawing set — engineered for Englewood's building department requirements and CO CBC code. Delivered in 10 business days.
Submit to Your Building Dept
Download your complete package and submit to Building & Codes. We support plan check corrections at no extra charge.
Common Questions
Englewood Home Addition FAQs
Do I need a permit for a home addition in Englewood? +
Yes — any structural addition to your home in Englewood requires a building permit. This applies to room additions, second-story additions, sunrooms, and attached garages. You'll need permit-ready drawings before the building department will accept your application. Our packages are formatted specifically for Englewood's submittal requirements.
How much does a home addition cost in Englewood? +
Home additions in Englewood typically cost between $220.0–$350 per square foot depending on the scope, finishes, and structural complexity. A 600 sq ft addition ranges from $132,000 to $210,000. Second-story additions cost more than ground-floor extensions due to structural requirements. Our drawing packages start at $1,497 — a fraction of local architectural fees.
What drawings are required to permit a home addition in Englewood? +
Englewood's building department requires: a site plan showing the addition's footprint and setbacks, floor plans for all affected levels, all four exterior elevations, an electrical plan, and energy compliance (Title 24 in California). Structural plans stamped by a licensed engineer are required for any load-bearing elements — included in our Premium package.
How long does the permit process take for a home addition in Englewood? +
Plan check in Englewood typically takes 6 weeks for home additions. Additions with structural components may require additional review. Complete, code-compliant drawings significantly reduce correction cycles — each cycle adds 3–6 weeks. Our drawings are engineered to pass on the first submittal.
What setbacks apply to home additions in Englewood? +
Englewood enforces minimum setbacks from property lines for all additions: typically 4–5 ft side setbacks and 5 ft rear setbacks, though these vary by zoning district and lot size. Your addition must stay within the buildable envelope. Our site plan documents existing and proposed setbacks and flags any zoning variances required.
Do I need structural drawings for a home addition in Englewood? +
Yes, for most additions. Any load-bearing walls, new foundations, second-story construction, or roof structure changes require stamped structural drawings from a licensed engineer. California's CBC (California Building Code) and seismic requirements make structural plans mandatory for most addition types. Our Standard and Premium packages include stamped structural drawings.
How much do home addition drawings cost in Englewood? +
Our permit-ready home addition drawing packages for Englewood start at $1,497. Local architects and designers typically charge $3,000–$10,000+ for comparable drawing sets. Every package is engineered for CO code compliance and formatted for Englewood's building department. Turnaround is 10 business days with a 14-day money-back guarantee.
Will a home addition increase my home's value in Englewood? +
In Englewood, where median home values are approximately $430,000, a permitted home addition adds square footage that appraisers value as part of the home's gross living area. Return on investment varies by addition type — master suite additions, family room expansions, and additional bedrooms typically recoup 50–75% of project cost in appraised value in CO markets.
Can I add a second story to my home in Englewood? +
Second-story additions are permitted in most Englewood residential zones, subject to height limits and design review requirements. California generally requires ministerial permit approval, but some cities impose design compatibility or neighborhood compatibility review for second stories. Our drawings cover all levels including foundation upgrades, shear walls, and roof framing required for vertical additions.
Nearby Cities
Also Available in Englewood
Adding an ADU instead? See our ADU design service.
Next Steps
Ready to Move Forward With Your Englewood 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 & Codes.
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.
Build With A Plan
$997 – $2,997
- ✓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 & Codes. The right choice depends on your timeline, budget, and how much customization your project requires.