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Real Estate Investing 101

Building Permits for Investors: Canadian Guide

Essential guide to building permits for property investors. Learn when permits are required, the approval process, and how to avoid costly compliance mistakes.

№ 545 September 4, 2026
Plate · № 545
6 min read

Look, I get it. Building permits are bureaucratic hassle. You just want to renovate your property and start collecting rent.

But here’s the thing: skipping permits creates problems far worse than the hassle of getting them. Unpermitted work can kill property sales, void insurance claims, require demolition of finished work, and generate fines that exceed what proper permitting would have cost.

Let me walk you through what you actually need to know.

What Permits Actually Do

A building permit is essentially government approval to do certain types of work on your property. The permit process ensures your work meets local codes for structural integrity, fire safety, electrical safety, and other critical factors.

Is it annoying? Sometimes. Is it necessary? Yes.

Permits protect everyone—you, your tenants, future buyers. They create documentation that work was done properly. They ensure someone checked that your contractor didn’t cut corners that could get people killed.

Work without permits can haunt you for years. Try selling a property when the buyer’s inspector discovers an unpermitted addition. That conversation never goes well.

When You Need Permits (And When You Don’t)

Work TypePermit Required?Notes
Structural changesYesWalls, foundations, etc.
Electrical workUsuallyBeyond basic fixture swaps
Plumbing changesUsuallyBeyond fixture replacement
HVAC modificationsYesNot filter replacement
New decks/porchesYesMost jurisdictions
Basement finishingYesEgress, electrical, etc.
Roof replacementSometimesStructural changes yes, re-shingling often no
Window/door replacementSometimesSize changes yes, like-for-like sometimes no
PaintingNoInterior or exterior
FlooringNoUnless structural implications
LandscapingNoUsually
FencesSometimesDepends on height and material

Work that typically requires permits:

  • Decks, porches, exterior structures
  • Fireplaces and chimney work
  • Garages (attached or detached)
  • Any additions
  • Furnace/HVAC changes
  • Plumbing modifications
  • Structural electrical work
  • Adding or removing walls
  • Basement walkouts
  • Swimming pools
  • Solar panel installations

Work that typically doesn’t need permits:

  • Interior painting
  • Cabinet installation (no plumbing changes)
  • Flooring installation
  • Basic landscaping
  • Replacing fixtures like-for-like
  • Freestanding structures under 10 square meters
  • Minor repairs

Requirements vary by municipality. When in doubt, call your local building department before starting work. A five-minute phone call beats finding out you needed a permit after the work is done.

The Permit Process

Building permits are handled at the municipal level. Most cities now have online portals for applications, fees, and inspection scheduling. If not, in-person or mail-in applications work.

What you typically need to submit:

  • Detailed project plans
  • Site plans showing property boundaries
  • Engineering calculations (for structural work)
  • Contractor licensing information
  • Previous permit history for the property

Fees depend on project scope—typically calculated by square footage and work type. Request fee schedules from your building department so you can budget accurately.

Processing time varies wildly. Simple projects might approve in days. Complex renovations can take weeks. You control one thing: submitting complete, accurate documentation initially. Missing information creates delays.

Working with experienced contractors who know your jurisdiction’s requirements streamlines everything. They know what inspectors look for and how to prepare documentation that doesn’t get rejected.

When Permits Get Denied

Don’t panic. Denial notifications explain why you were rejected. That’s your roadmap for fixing the application.

Common rejection reasons:

  • Missing documentation
  • Zoning violations
  • Code compliance issues
  • Setback or height violations
  • Fire safety concerns
  • Inadequate structural specifications

For most issues, revising your plans and resubmitting works. Consult with architects or engineers if you need help understanding what modifications are required.

If you can’t resolve issues through plan changes, formal appeals exist. But appeals take time and possibly legal fees. Exhaust resolution options before going that route.

The Danger of Working Without Permits

Let me be blunt: skipping required permits is penny wise, pound foolish.

What happens if you get caught:

  • Stop-work orders halt your project
  • You may have to demolish completed work
  • Fines that exceed what permits would have cost
  • Difficulty getting future permits
  • Property sale complications
  • Insurance claim denials

When you go to sell the property, buyers will discover unpermitted work. Then you face retroactive permitting—which often means opening up finished walls for inspection and potentially redoing work to meet current codes.

Not worth it. Just get the permits.

Working with Licensed Contractors

Only hire licensed contractors for permitted work. This matters more than you might think.

Licensed contractors:

  • Understand permit requirements
  • Can prepare proper documentation
  • Know how to pass inspections
  • Carry required insurance
  • Have accountability through licensing boards

If you’re caught working with unlicensed contractors:

  • Liens can be placed on your property
  • Permits can be suspended or revoked
  • You may face fines
  • Insurance coverage may be voided
  • You’re liable for injuries and damages

Request contractor license numbers and verify them before signing contracts. The five minutes this takes prevents potentially massive complications.

Financing Renovations

If you’re buying a property that needs significant work, ask your mortgage professional about purchase-plus-improvements financing.

These products let you borrow additional funds specifically for planned renovations, rolled into your primary financing. Often you get better rates than separate renovation loans.

The additional funds release as work progresses, typically requiring inspections before each disbursement. This aligns nicely with the permit inspection process—you’re getting inspected anyway.

Frequently Asked Questions

How long do permits take to approve?
Simple projects: 1-2 weeks. Complex work requiring plan review: several weeks to months. Complete, accurate applications minimize review time.
Can I start work before approval?
No. Starting before permit approval can result in stop-work orders, required demolition, permit denial, and fines. Wait for official approval.
What if I already did work without permits?
You may need retroactive permitting, which often requires exposing completed work for inspection and modifications to meet current codes. The sooner you address this, the better.
Are permit requirements the same everywhere?
No. Requirements vary significantly between municipalities. What's exempt in one city may require permits in another. Always check local requirements for your specific property location.
What happens if unpermitted work is discovered during a property sale?
Buyers' inspectors often catch unpermitted work, which can derail or delay the sale. You may need to pursue retroactive permitting, which typically means opening up finished walls for inspection and potentially redoing work to meet current building codes. This costs far more than getting permits upfront.
Why should I only use licensed contractors for permitted work?
Licensed contractors understand permit requirements, can prepare proper documentation, know how to pass inspections, and carry required insurance. Using unlicensed contractors can result in liens on your property, revoked permits, fines, voided insurance coverage, and personal liability for injuries or damages.
Can I finance renovations that require building permits?
Yes. Purchase-plus-improvements mortgage products let you borrow additional funds for planned renovations rolled into your primary financing, often at better rates than separate renovation loans. Funds are released as work progresses, typically requiring inspections before each disbursement, which aligns well with the permit inspection process.

The Bottom Line

Ready to explore your financing options? Book a free strategy call with LendCity and let our team help you find the right path forward.

Building permits are part of the renovation game. Accept that, budget for the fees and timeline, and work with contractors who understand the process.

The hassle of proper permitting is nothing compared to the hassle of unpermitted work creating problems for years to come.

Do it right. Get your permits. Sleep well knowing your work is documented, inspected, and won’t come back to bite you.

Book Your Strategy Call

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Disclaimer: LendCity Mortgages is a licensed mortgage brokerage. Content on this page is for educational purposes only and does not constitute legal, tax, investment, securities, or financial-planning advice. Rates, premiums, program terms, and regulations referenced are as of the page's last updated date and are subject to change. Any investment returns, rental yields, tax savings, or case-study figures shown are illustrative only — they are not guaranteed, not typical, and individual results will vary. Consult a licensed lawyer, Chartered Professional Accountant, or registered dealer before acting on any information above. Editorial standards.

LendCity
Written by
LendCity
· 6 min read

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Key Terms
Building Permit Contractor Foundation HVAC Lien Plumbing Purchase Plus Improvements Roof Replacement STR Zoning

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