Floor Plan Drafting · Gresham, OR
Professional Floor Plan Drafting
for Gresham, OR Homes
As-built drawings, permit-ready floor plans, and renovation layouts for Gresham homeowners, investors, and contractors. Accurate CAD drawings in 10 business days, starting at $997.
14-day money-back guarantee · 10 business day turnaround
Common Uses in Gresham
Local Intelligence
What Gresham Homeowners Need to Know Before Submitting
Size & Zoning Rules
Accurate floor plans are the foundation of any ADU, garage conversion, or addition permit in Gresham — Building Permits and Inspections will not accept a permit application without them. Gresham's current ADU size cap is 750 sq ft — on the tighter end, which constrains larger conversion plans.
Gresham does not impose an owner-occupancy requirement, so you can rent both the main home and any ADU or conversion as investment units.
Homeowners in Gresham who document and legitimize their square footage correctly are positioning a home in a rental market where 1-bedroom units average approximately $1,357/month.
Permit Process & Fees
Building Permits and Inspections permit fees for this project type typically range from $10,369 to $11,303 depending on project valuation and scope. Plan check runs approximately 9 weeks — though each correction cycle adds 3–6 weeks, which is why code-compliant drawings matter so much.
Floor plans submitted to Building Permits and Inspections as part of a permit application must include a site plan, floor plans, all four elevations, an electrical plan, and energy compliance documentation — plus if structural changes are involved, a licensed engineer must stamp the structural drawings.
Visit Building Permits and Inspections ↗Construction Cost Context
Gresham's adu / renovation construction costs run $200–$392 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 Gresham
Gresham's Building Permits and Inspections office will flag your project for a separate Rockwood/Civic Neighborhood review if you're in those older platted areas, since many lots there still show pre-1980s septic or well records even though the property has since connected to city sewer — clearing that paperwork trail can add real delay before plan review even starts. Because the whole city sits in Seismic Design Category D, engineers here typically require continuous hold-down anchoring and a full lateral load calc stamped by an Oregon-licensed engineer, which is a heavier (and pricier) structural review than what many contractors quote upfront. Also, since Gresham doesn't allow short-term rental use of ADUs, Multnomah County will cross-check your utility billing address after final inspection, so plan on the unit being registered as a long-term rental or family-use dwelling from day one.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience with Gresham permits, that $250/sqft figure and the 9-week timeline read like state-level averages rather than what I see on the ground here — I'd call Building Permits and Inspections directly and get at least two local contractor quotes before penciling out your budget. Even at 9 weeks, that assumes a clean, complete drawing set; I've watched plenty of first submittals stretch past 12-14 weeks once corrections come back."
Market Context
Gresham has a median home value of $413,000. Comparable renovation projects in this market typically add 25.0% to resale value.
Neighborhoods in Gresham with the strongest renovation and resale value potential include Powell Valley, Wilkes East, Northwest, Gresham Butte, Mount Hood. Close to downtown Gresham and transit with many single-family lots suitable for detached ADUs.
Permit Process
Permit applications are reviewed by the Building Permits and Inspections, with a plan check timeline of approximately 9 weeks. Permit fees in Gresham range from $10,369 to $11,303 depending on project scope. Design review: Yes - required for attached and freestanding ADUs (Type II administrative review with design standards) citywide; interior conversion ADUs (Type I) are exempt; Design Commission may act in Design Districts..
Gresham falls within Seismic Design Category Seismic Design Category D (minimum), which affects structural requirements for any new addition tying into the existing structure.
Local Financing Resources
Local Floor Plan Lenders in Gresham
These lenders offer HELOC and renovation financing that often requires accurate as-built drawings in Multnomah County. Compare terms before committing.
Offers HELOC/home equity products in OR/WA with variable-rate HELOC features suitable for ADU work; local Gresham branch available.
Visit Lender ↗Provides home equity loans and HELOCs in the Portland metro area (serves Gresham) with competitive rates and flexible terms.
Visit Lender ↗Regional CDFI that partners on BackHome ADU financing and offers construction/ADU loans and flexible underwriting for Oregon homeowners.
Visit Lender ↗Specialty ADU/renovation financier that arranges loans through partner lenders and operates in Oregon for ADU projects.
Visit Lender ↗Regional bank with a Gresham branch and construction/renovation lending (construction-to-perm options; can finance ADUs).
Visit Lender ↗Build With A Plan is not affiliated with these lenders. Always compare rates and consult a mortgage professional.
Local Build Partners
Vetted Local Contractors in Gresham
Need a contractor once your drawings are ready? These are vetted local options. 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.
What We Deliver
What's Included in Your Gresham Floor Plan Package
Transparent Pricing
Gresham Floor Plan Packages
One-time fee. No retainer. No hourly billing.
- ✓As-built floor plans (all levels)
- ✓Verified square footage
- ✓Door & window schedule
- ✓Room labels and dimensions
- ✓PDF + DWG delivery
- ✓10 business day turnaround
- ✓Everything in Starter
- ✓Electrical layout documentation
- ✓Plumbing fixture locations
- ✓Site plan with setbacks
- ✓Code notations for permit submittal
- ✓1 round of revisions
- ✓Everything in Standard
- ✓Proposed renovation overlay
- ✓3D massing model
- ✓HOA submission package
- ✓Title 24 energy compliance
- ✓2 rounds of revisions
- ✓Priority 5-day turnaround
How It Works
Your Floor Plans in 3 Steps
Share Your Home Details
Provide your property address, room measurements, and photos. We'll confirm your order and assign a drafting coordinator within 4 business hours.
We Draft Your Plans
Our CAD team converts your measurements into precise, scaled floor plans — formatted for Gresham's building department and OR code standards. Delivered in 10 business days.
Download and Use
Receive your drawings in PDF and DWG format — ready for permit submittal, contractor bidding, listing agents, appraisers, or HOA submission.
Common Questions
Gresham Floor Plan Drafting FAQs
When do I need professionally drafted floor plans in Gresham? +
You need accurate floor plans for: permit applications (required by Gresham's building department for any structural work), refinancing or home equity loans, selling your home (accurate square footage documentation), renovation contractor bidding, HOA design review submissions, and insurance claims. Our as-built drawings capture your home's exact current dimensions.
What is an as-built floor plan and why do I need one in Gresham? +
An as-built floor plan documents your home as it currently exists — including all room dimensions, door and window locations, wall thicknesses, and square footage. These are required when the original permit drawings are unavailable or the home was modified without permits. Gresham's building department requires accurate as-builts when you apply for renovation or addition permits on older homes.
How much does floor plan drafting cost in Gresham? +
Our floor plan drafting packages for Gresham start at $997 for a standard residential home. This includes measured floor plans for all levels, room labels, door and window schedules, and verified square footage. Local drafting services typically charge $1,500–$4,000 for the same work. We deliver within 10 business days with a 14-day money-back guarantee.
How do you create floor plans remotely for my Gresham home? +
You provide basic measurements (room dimensions, door/window sizes) and photos of each room. Our drafting team converts these into accurate CAD drawings with precise dimensions, wall thicknesses, and notations. For permit-grade as-built drawings, we may request additional measurements or a site visit from a local partner. We serve all Gresham neighborhoods remotely.
What format are the floor plan drawings delivered in? +
We deliver drawings in PDF (for printing and permit submission) and DWG/DXF (AutoCAD-compatible format for contractors, engineers, and architects to work from). All drawings are formatted to Gresham building department standards and include title block, scale, and code notations required for permit submission.
Can you draft floor plans for a rental property or multi-unit building in Gresham? +
Yes — we draft floor plans for single-family homes, duplexes, triplexes, ADUs, condos, and small commercial properties in Gresham. Multi-unit buildings are priced based on the total number of units and floors. Contact us for a custom quote if your property has more than 4 units.
Will accurate floor plans increase my home's value in Gresham? +
In Gresham, where median home values are around $413,000, inaccurate or missing square footage records can suppress list price and appraisal value. Professional as-built drawings establish defensible square footage for appraisers and buyers. Unpermitted additions documented and legitimized through permit drawings can recover thousands in appraised value.
Do I need floor plans to get an ADU or addition permit in Gresham? +
Yes — Gresham's building department requires accurate floor plans as part of any ADU, garage conversion, or addition permit application. Our packages combine floor plan drafting with the full permit-ready drawing set (site plan, elevations, electrical, Title 24) needed for plan check submittal. If you only need the floor plans themselves, our Starter package covers that.
Can you draft floor plans from old blueprints or photos in Gresham? +
Yes — we can redraft from original blueprints, scans of old permit sets, hand-drawn sketches, or room photos combined with your measurements. We regularize old drawings to current CAD standards and update them to reflect any modifications made since original construction. This is a common service for Gresham homes built before the 1990s.
Also Available in Gresham
Planning to build an ADU? See our ADU design service.
Next Steps
Ready to Move Forward With Your Gresham 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 Permits and Inspections.
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 Permits and Inspections. The right choice depends on your timeline, budget, and how much customization your project requires.