Garage Conversion Drawings · Broomfield, CO
Permit-Ready Garage Conversion
Drawings for Broomfield, CO
Convert your garage into permitted living space or a rental unit. We deliver complete, code-compliant drawing sets ready for Broomfield's building department — in 10 business days, starting at $997.
14-day money-back guarantee · 10 business day turnaround
Local Intelligence
What Broomfield Homeowners Need to Know Before Submitting
Size & Zoning Rules
Converting your garage to a legal rental unit means the finished space must comply with Broomfield's ADU size limits. Broomfield's current ADU size cap is 800 sq ft — within the typical range for most floor plan configurations.
Broomfield does not impose an owner-occupancy requirement, so you can rent both the main home and any ADU or conversion as investment units.
A fully permitted, code-compliant garage conversion in Broomfield can command approximately $1,719/month as a 1-bedroom rental — far more than leaving the space as storage.
Permit Process & Fees
Building Division permit fees for this project type typically range from $2,200 to $8,500 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.
Garage conversion drawings submitted to Building Division must include a site plan, floor plans, all four elevations, an electrical plan, and energy compliance documentation — plus stamped structural plans are typically required for converted garages that are detached or require seismic upgrades.
Visit Building Division ↗Construction Cost Context
Broomfield's garage conversion construction costs run $157–$220 per square foot — a moderate 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 Broomfield
Because Broomfield operates as a combined city-county, your ADU application actually gets routed through both municipal planning review and Broomfield County records, and if your legal description or plat hasn't been updated since the city-county split, you'll hit a title discrepancy that stalls permit intake until it's corrected. The Building Division also requires a separate tap fee study for water and sewer if your lot was platted before 1990, since many older Broomfield subdivisions were built with utility lines sized only for the primary residence. Because short-term rentals aren't allowed here, some lenders financing the ADU will ask for a letter from the city confirming long-term rental intent before they'll release construction draws.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, that $225/sqft figure and the 6-week plan check timeline read like Colorado state-level averages rather than numbers pulled from Broomfield's actual permit desk, so I'd call the Building Division directly and get two or three local contractor quotes before penciling those into your budget. What the data doesn't show is that a 6-week estimate assumes a clean, complete drawing set on first submittal — with the 35% HOA prevalence here, I've seen plenty of projects add 3-4 weeks just from HOA review running parallel to the city's process."
Market Context
Broomfield has a median home value of $510,000. Comparable renovation projects in this market typically add 23% to resale value.
Neighborhoods in Broomfield with the strongest garage conversion and rental-unit potential include North Broomfield, Broadlands, Ridgeview Heights, Country Estates, Willow Run. Very large lots and proximity to St. Anthony North Hospital and I‑25 make it ideal for detached ADUs and rentals.
Permit Process
Permit applications are reviewed by the Building Division, with a plan check timeline of approximately 6 weeks. Permit fees in Broomfield range from $2,200 to $8,500 depending on project scope. Design review: Yes - in historic districts only.
Broomfield falls within Seismic Design Category Seismic Design Category B (ASCE 7), which affects structural requirements for converted garage walls and foundations.
Local Financing Resources
Local Garage Conversion Lenders in Broomfield
These lenders offer HELOC, construction, and renovation loans for garage conversion projects in Broomfield County. Compare terms before committing.
Offers fixed-rate home equity loans and HELOC products (rates advertised from ~7.99% on fixed products); serves Boulder/Northern Colorado region including Broomfield area.
Visit Lender ↗Home Equity ChoiceLine combines HELOC flexibility with fixed-rate options; available to Bellco members across metro Denver (typical line sizes depend on equity).
Visit Lender ↗Offers both standard and variable-rate HELOCs with longer terms; serves Colorado members (metro Front Range including Broomfield).
Visit Lender ↗Local Colorado credit union (Aurora) offering flexible HELOCs suitable for ADU financing; local underwriting and competitive local service.
Visit Lender ↗Specialty ADU lender/platform that partners with credit unions to offer ADU/renovation loans (typical RenoFi loan sizes range from tens of thousands up to $500k+ depending on partner).
Visit Lender ↗Build With A Plan is not affiliated with these lenders. Always compare rates and consult a mortgage professional.
Local Build Partners
Vetted Garage Conversion Contractors in Broomfield
We draw the plans. These contractors build the conversion. 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 Broomfield Garage Conversion Package
Transparent Pricing
Broomfield Garage Conversion Drawing Packages
One-time fee. No retainer. No hourly billing.
- ✓Site plan
- ✓Floor plans
- ✓All 4 elevations
- ✓Electrical plan
- ✓Title 24 energy form
- ✓PDF + DWG delivery
- ✓10 business day turnaround
- ✓Everything in Starter
- ✓Structural plans (stamped)
- ✓Cross-section details
- ✓Window & door schedules
- ✓Material specifications
- ✓1 round of revisions
- ✓Everything in Standard
- ✓3D rendering
- ✓HOA submission package
- ✓ADU conversion alt plan
- ✓2 rounds of revisions
- ✓Priority 5-day turnaround
After You Order
Your Conversion Drawings in 3 Steps
Submit Your Garage Details
Share your property address, garage dimensions, and intended use (ADU, rental, home office). We confirm your order and assign your project coordinator within 4 business hours.
We Draft Your Drawings
Our team designs your complete conversion drawing set — engineered for Broomfield's building department requirements and CO code. Delivered in 10 business days.
Submit to Your Building Dept
Download your complete package and submit to Building Division. We support plan check corrections at no extra charge.
Common Questions
Broomfield Garage Conversion FAQs
Is a garage conversion allowed in Broomfield? +
Yes — garage conversions are permitted in Broomfield. Colorado state law allows homeowners to convert an attached or detached garage into habitable living space or an ADU. A building permit and permit-ready drawings are required before work begins.
How much does a garage conversion cost in Broomfield? +
Garage conversions in Broomfield typically range from $127,500 to $280,500 depending on the existing structure, finish level, and scope of work. This is significantly less than building a new detached ADU. Our drawing package starts at $997 — a fraction of what a local architect would charge for the same permit-ready set.
What drawings are required to permit a garage conversion in Broomfield? +
Broomfield's building department requires: a site plan showing the converted garage's location on the lot, floor plans with dimensions and room labels, all four exterior elevations, an electrical plan, and energy compliance documentation (Title 24 in California). Our Starter package covers all of these. If the garage is detached or the structure requires seismic upgrades, stamped structural drawings are also required — included in our Premium package.
How long does the permit process take for a garage conversion in Broomfield? +
Plan check in Broomfield typically takes approximately 6 weeks. Having complete, code-compliant drawings dramatically reduces correction cycles — which each add 3–6 weeks. Our drawings are designed to pass on the first submittal.
Can I convert my garage into a rental unit in Broomfield? +
Yes — a permitted garage conversion can function as a standalone rental unit (ADU or JADU depending on size). In California, converted garages under 500 sq ft qualify as Junior ADUs (JADUs), while larger conversions qualify as full ADUs. Both can be rented long-term. Short-term rental rules vary by city — confirm with Broomfield's planning department.
Do I need to replace the garage door opening when converting? +
Yes. The garage door must be replaced with an insulated wall with a standard entry door and at least one egress window (minimum 5.7 sq ft clear opening). This is captured in our elevation drawings and flagged in the electrical plan. The new wall must also meet CO energy code requirements, which we handle in the Title 24 compliance documentation.
How much does it cost to get garage conversion drawings in Broomfield? +
Our permit-ready garage conversion drawing packages for Broomfield start at $997. Local architects typically charge $2,500–$6,000 for the same set. Every package is engineered for CO code compliance and formatted for Broomfield's building department. Turnaround is 10 business days with a 14-day money-back guarantee.
Will converting my garage increase my home's value in Broomfield? +
A permitted garage conversion in Broomfield adds rentable square footage to a home currently valued around $510,000. Converted spaces typically appraise as habitable square footage, increasing the home's value. As an ADU or JADU, the rental income stream is also capitalized into the appraised value — typically at a 5–6% cap rate.
Nearby Cities
Also Available in Broomfield
Need full ADU design drawings instead?
Next Steps
Ready to Move Forward With Your Broomfield 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.
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 Division. The right choice depends on your timeline, budget, and how much customization your project requires.