The Ultimate Home Renovation Planning Guide: From Vision to Contractor Selection
A step-by-step checklist to prepare for your custom home, kitchen, bath, or basement project in Portland
This guide walks you through every critical phase of a renovation or new build—from defining your scope of work to vetting contractors and securing permits. Use it to organize your priorities, ask the right questions, and walk into your free Cornerstone Builders consultation fully prepared.
☑ Complete Checklist
Pre-Planning & Scope Definition
- ☐Identify load-bearing walls and structural constraints before sketching layouts
- ☐List all ‘must-have’ features vs. ‘nice-to-haves’ to avoid scope creep
- ☐Research Portland’s residential setback requirements and zoning overlay districts
- ☐Measure existing square footage and ceiling heights to inform design decisions
- ☐Check for any historic district or conservation overlay that affects exterior changes
- ☐Decide on project delivery method: design-build vs. architect + bid vs. owner-builder
Budgeting & Financing
- ☐Allocate 15–20% contingency fund for unforeseen structural or MEP discoveries
- ☐Obtain itemized bids from three licensed contractors, not lump-sum only
- ☐Factor in Portland-specific costs: seismic retrofitting, DEQ stormwater fees, egress requirements
- ☐Request lien waiver templates from subcontractors and material suppliers upfront
- ☐Verify your homeowner’s insurance covers builder’s risk during construction
- ☐Set a separate ‘allowance’ line for finishes (cabinetry, countertops, flooring) with a firm cap
- ☐Confirm any HOA or CC&R approval fees are included in your initial budget
Design & Permitting
- ☐Require structural engineer stamped drawings for any wall removals or window expansions
- ☐Submit a complete permit application to the City of Portland’s BDS (Bureau of Development Services)
- ☐Include energy code compliance: meet Oregon’s Reach Code or local low-carbon fuel standards
- ☐Specify all rough-in locations for plumbing, electrical, and HVAC on the plan
- ☐Request electrical load calculations if adding high-demand appliances (range, EV charger, heat pump)
- ☐Schedule a pre-permit meeting with city plan reviewers if project requires an ADU or lot coverage variance
- ☐Get written approval for any easement encroachments or shared utility lines
Contractor Vetting & Contracts
- ☐Confirm the contractor holds an active Oregon CCB license and bond (CCB# search on oregon.gov/ccb)
- ☐Request proof of general liability insurance (minimum $1M per occurrence) and workers’ comp
- ☐Check references: ask for three recent projects similar in scale and finish level
- ☐Review change order protocol: written only, with price and schedule impact noted before work begins
- ☐Verify the contract includes a clear payment schedule tied to milestones, not calendar dates
- ☐Ensure the contract specifies warranty terms: 1 year workmanship, 10 years for structural defects per Oregon law
- ☐Demand a detailed project timeline with start/completion dates and allowance expiration dates
Site Preparation & Logistics
- ☐Obtain temporary street occupancy permits for dumpsters, material deliveries, and crane access
- ☐Flag utilities (gas, electric, water, fiber) for locates before any digging or demo
- ☐Install erosion control measures (silt fencing, straw waddles) on sloped lots or near waterways
- ☐Set up a clear parking plan that keeps crew vehicles off neighbors’ driveways and avoids street sweeping times
- ☐Protect existing trees with root-zone fencing and mulch before heavy equipment arrives
- ☐Establish a dust-containment plan (zipwall, negative air) if living on site during renovations
- ☐Schedule an initial safety meeting with trades and check for lead paint or asbestos if pre-1978 home
💡 Pro Tips from the Experts
💡 Always Get Three Bids, But Compare Apples to Apples
Ask each contractor for the same scope of work, material specifications, and warranty terms; a low bid that skips seismic ties or city permits will cost you more later.
💡 Don’t Demo Before Permits Are Issued
In Portland, structural changes or mechanical rough-ins started before approval can result in a stop-work order, fines, and even having to re-open walls for inspection.
💡 Plan a 20% Contingency—Even for Small Projects
Kitchens often hide rotted subfloors, bathrooms conceal old galvanized pipes, and basements may have sump pump or radon issues; a buffer keeps your timeline intact.
💡 Use a Spec Sheet for Finishes to Avoid Delays
Create a single document listing all chosen tile, countertop, cabinet, and fixture SKUs; this prevents last-minute substitutions and allows the contractor to order materials on time.
💡 Schedule Inspections in Advance
Portland’s BDS can have backlogs; book rough-in and final inspections two weeks ahead, and have all paperwork on site (stamped drawings, permit card, engineering reports).
💡 Get Everything in Writing—Especially Change Orders
Oral agreements on scope additions or deletions are the #1 cause of disputes; require a signed change order with revised cost and schedule before work proceeds.
This guide is for informational purposes only and does not constitute legal or engineering advice. Always consult a licensed contractor and verify all local building codes and permit requirements with the City of Portland.