Home Addition Drawings · Montrose, CO
Permit-Ready Home Addition
Drawings for Montrose, CO
Expand your home with a permitted room addition, second story, or family room extension. We deliver complete, code-compliant drawing sets for Montrose's building department — 14-day money-back guarantee.
14-day money-back guarantee · permit-ready delivery
Local Intelligence
What Montrose Homeowners Need to Know Before Submitting
Size & Zoning Rules
Any new square footage added to your Montrose home counts against the same zoning envelope that governs ADU size, meaning large additions may affect your ability to add a future ADU. Montrose's current ADU size cap is 1,000 sq ft — within the typical range for most floor plan configurations.
Montrose 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, Montrose's ADU market supports approximately $1,448/month for a 2-bedroom unit.
Permit Process & Fees
Addition permit packages submitted to Building Services 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 Services ↗Construction Cost Context
Montrose's home addition construction costs run $322–$450 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 Montrose
Even though Montrose rolled out its Pre-Approved ADU Program in August 2025 to speed things up, that shortcut only applies if your plans match one of the pre-vetted designs exactly — any tweak to the footprint or roofline kicks you back into standard review with Building Services, which can quietly erase the time savings you were counting on. Homeowners also get tripped up by the city's separate water tap fee schedule, since adding a second dwelling unit usually triggers a new tap fee calculation rather than letting you piggyback on the existing house's connection. And because short-term rentals aren't allowed on ADUs here, anyone pitching the unit as an Airbnb income source in their financing plan needs to rework those numbers before they even talk to the bank.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, when the timeline and cost fields come back blank like this, it usually means Montrose doesn't have reliable local data plugged in yet, so treat any state-level averages you find elsewhere with real caution — call Montrose Building Services directly for a current plan check queue estimate and get two or three local contractor quotes before you budget per square foot. I'd also note that with 25% HOA prevalence in the area, that's one more approval layer many homeowners forget to factor into their timeline."
Market Context
Montrose has a median home value of $400,000. Comparable renovation projects in this market typically add 23% to resale value.
Neighborhoods in Montrose with the strongest home addition and resale value potential include Downtown / Historic Montrose, South Montrose, Spring Creek, Bear Creek, Cimarron Creek. Favorable REDO zoning with reduced setbacks and high demand due to downtown walkability, making ADU development significantly easier.
Permit Process
Permit applications are reviewed by the Building Services. Design review: Yes - in historic districts only.
Montrose falls within Seismic Design Category A, which affects structural requirements for any new addition tying into the existing structure.
Local Financing Resources
Local Home Addition Lenders in Montrose
These lenders offer HELOC, construction, and renovation loans for home addition projects in Montrose County. Compare terms before committing.
Montrose branch at 200 N Townsend Ave (970-249-3408); offers construction-to-permanent loans with dedicated Mortgage Experts to convert the loan after completion [1][7].
Visit Lender ↗Montrose branch at 330 S 12 St; construction financing up to 80% of project costs, lot equity counts toward down payment, flexible terms, with reduced closing costs if converted to permanent financing [2][9].
Visit Lender ↗Major Western Slope bank with Montrose-area branches; offers competitive-rate construction loans for Jumbo/Conventional, resort, second-home, and primary-residence projects [5][10].
Visit Lender ↗Colorado-based credit union financing primary residences, second homes, and ADU-relevant construction including stick-built and prefab homes [6][11].
Visit Lender ↗Specialty ADU lender operating in Colorado; RenoFi Loans factor in post-construction home value, letting borrowers access roughly 11x more equity than a typical HELOC without draw schedules or inspections.
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 Montrose
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.
Free — No Obligation
What Will Montrose Let You Add?
Setbacks, lot coverage, and height limits decide your addition before a single line is drawn. Send us the address and we’ll tell you what’s actually approvable — free, before you commit to a design.
- ✓Maximum footprint your lot and setbacks allow
- ✓Lot-coverage and height limits in Montrose
- ✓Whether your addition triggers structural or energy upgrades
- ✓Realistic plan-check timeline for your project
- ✓A straight answer within 48 hours
Review My Project — Free
Takes 60 seconds. We'll deliver your personalized report within 48 hours.
Request Received
Your feasibility report is being prepared. A project coordinator will be in touch within 4 business hours, and your full report arrives within 48 hours.
Drawing Package Details
What's Included in Your Montrose Home Addition Package
What You Get
What's in Your Montrose Home Addition Package
One-time fee, no retainer, no hourly billing — your exact scope and price confirmed on a free call.
- ✓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 Montrose'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 Services. We support plan check corrections at no extra charge.
Common Questions
Montrose Home Addition FAQs
Do I need a permit for a home addition in Montrose? +
Yes — any structural addition to your home in Montrose 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 Montrose's submittal requirements.
How much does a home addition cost in Montrose? +
Home additions in Montrose typically cost between $150–$400 per square foot depending on the scope, finishes, and structural complexity. A 600 sq ft addition ranges from $90,000 to $240,000. Second-story additions cost more than ground-floor extensions due to structural requirements. Contact us to discuss drawing package options for your project.
What drawings are required to permit a home addition in Montrose? +
Montrose'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 Montrose? +
Plan check in Montrose typically takes 8 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 Montrose? +
Montrose 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 Montrose? +
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 Montrose? +
Our permit-ready home addition drawing packages for Montrose include everything your building department requires — floor plans, elevations, structural, and energy compliance. Every package is engineered for CO code compliance and formatted for Montrose's building department. 14-day money-back guarantee.
Will a home addition increase my home's value in Montrose? +
In Montrose, where median home values are approximately $400,000, 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 Montrose? +
Second-story additions are permitted in most Montrose 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 Montrose
Adding an ADU instead? See our ADU design service.
Next Steps
Ready to Move Forward With Your Montrose 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 Services.
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
Quoted on your free call
- ✓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 Services. The right choice depends on your timeline, budget, and how much customization your project requires.