If you own a home in Calgary, there is a good chance you already have a Real Property Report (RPR) from when you bought or built. The surprise many owners discover later is everyday home improvements can quietly turn the “good” RPR into one which no longer reflects reality on the ground.
The disconnect tends to surface at the worst possible time — right before closing, when a buyer’s lawyer or the City is reviewing your documents.
This article explains what an RPR is, what “non‑compliant” really means in Calgary, and nine common home projects which can trigger RPR problems. We will also outline what happens when an RPR is non‑compliant in a transaction and what you can do before renovating so your next sale is as stress‑free as possible.
What Is An RPR And Why Does Compliance Matter?
Before you can understand how home improvements cause trouble, it helps to be clear on what an RPR is and how compliance fits into the picture. That context is what turns a technical document into something which actually protects you in a real estate deal.
A Real Property Report (RPR) is a legal survey document prepared and signed by a licensed Alberta Land Surveyor. It shows your property boundaries and the location of all permanent, visible improvements — house, garage, decks, fences, sheds, concrete pads, and similar structures — relative to those boundaries. It also identifies easements and rights‑of‑way and flags encroachments where improvements cross onto neighbouring or municipal lands.
In Calgary, the City reviews your RPR to decide whether the placement of those structures meets current land‑use bylaws. Importantly, only a recently surveyed RPR — signed within the past year — qualifies for municipal review. An older plan cannot be submitted for assessment.
When you do submit a current RPR, the City may issue:
- A Certificate of Compliance (everything acceptable from a placement standpoint),
- An encroachment advisory, or
- A requirement for a Development Permit (DP) or other remedial action.
The response you receive depends on what the RPR shows and how those conditions measure up against current bylaws. The rest of this article explains how common home improvements can affect that outcome, and what you can do about it.
When Does An RPR Stop Working For You?
RPRs do not expire on a calendar date, but they do not stay useful forever, either. Two things can undermine the RPR sitting in your filing cabinet.
- The property changes, but the RPR does not.
New projects create structures that are not shown on the plan at all. A rebuilt deck, a new shed, a widened driveway — any of these can make your existing RPR an inaccurate picture of the property.
Once that happens, the RPR is outdated. It cannot be submitted to the City, and it will not satisfy a buyer’s lawyer. A new RPR must be prepared before compliance can be assessed. - The rules change, even if the property does not.
Calgary’s bylaws and enforcement policies have been rewritten over the years. A structure that was acceptable under older rules may not meet today’s standards.
Anything from a pre‑2007 RPR is particularly risky in this respect. Even if nothing has been added to the property, a new RPR reviewed against current bylaws may come back with conditions you were not expecting.
In the first case, you are dealing with an outdated document. In the second, you may be facing a compliance issue the City identifies only once a current RPR is in front of them. Either way, the earlier you find out, the more options you have.
9 Home Improvements That Can Trigger RPR Non‑Compliance In Calgary
Not every project will put your RPR at risk, but certain exterior changes come up again and again in Third Rock’s work with Calgary homeowners and realtors. The common thread is that these projects affect setbacks, easements, and encroachments, which are among the key factors the City considers when it reviews your RPR for compliance.
1. Rebuilding Or Extending Decks
Decks are among the most frequent offenders. In Calgary, once a deck is 60 cm or more above grade, it is treated very differently from a patio at grade:
- Elevated decks are subject to minimum rear and side yard setbacks.
- A deck which steps closer to the rear line than allowed, or creeps too close to a side yard, may be flagged upon review.
If you rebuild a deck taller than the original, extend it closer to the fence, or change a small landing into a full elevated deck, the existing RPR no longer reflects what is on the ground. Once a change like this has been made, a new RPR is required.
When the new RPR is prepared and submitted, the City may flag the deck’s placement with a rejection letter and require a DP or encroachment process, even if the original, smaller deck was acceptable.
2. New Or Moved Fences
Many homeowners assume the fence marks the property line, but as Mark Sutter often reminds our clients, a fence is not the boundary.
In practice, fences are regularly:
- Built slightly inside the line,
- Built slightly onto the neighbour’s land, or
- Built into lanes or utility corridors.
If you replace a fence in a different location, move it to “straighten” things, or build a new fence on a property which had none when the original RPR was done, the next RPR may show fences closer to — or over — property lines, inside a utility or drainage easement, or creeping into the lane.
Those changes can lead to notes and encroachment advisories on your RPR which did not exist before. In some cases, the City may tolerate small intrusions; in others, it may require adjustments. Either way, the old RPR without those fences is no longer a reliable snapshot.
3. New Or Enlarged Garages
Detached garages and garage extensions are another common trigger. A new or extended garage may create problems when:
- It sits too close to a rear or side property line,
- It encroaches into a lane right-of-way, or
- It is built over an Overland Drainage easement or utility easement at the back of the lot.
If your original RPR predates the new or enlarged garage, the City’s compliance review of your updated RPR may flag setback violations or encroachment into municipal corridors. Even a small shift in location can matter, particularly on narrow or shallow lots.
4. Sheds, Accessory Buildings, And Playhouses
Small structures like sheds and detached playhouses do not always feel “permanent,” but they are very relevant to RPR compliance when they sit in the wrong place. Red‑flag locations include:
- Utility or overland drainage easements at the rear or side of the lot,
- Environmental reserve buffers, or
- Zero‑lot‑line access easements.
A shed which sits neatly in the corner of the yard may be harmless in one neighbourhood and a significant issue in another, depending on the easements that cross the land. If your last RPR predates the shed, an updated RPR may reveal it falls in a no‑build zone and needs to be addressed before the RPR will be clear of any issues.
5. Concrete Pads, Patios, And A/C Units
Concrete pads and at‑grade patios may seem too small to matter, but they often go hand‑in‑hand with more permanent features: air‑conditioning units, hot tubs, outdoor kitchens, and covered areas.
Issues tend to arise when:
- A/C units or equipment sit inside yards which are already tight,
- Pads and equipment encroach into side or rear setbacks, or
- Concrete is poured within easements that carry drainage or utility rights.
An older RPR showing a simple grass yard may no longer reflect a yard full of hardscaping and equipment. When the RPR is updated, distances to property lines and easements change, and the City may treat some of those items as encroachments or request further information, such as photos or additional details on the plan, to aid its decision.
6. Sunrooms, Additions, And Enclosed Porches
Enclosing a deck, adding a sunroom, or extending living space outward changes more than the feel of your home. It can:
- Push the main structure closer to required setbacks,
- Turn what was previously an open deck into full building mass, and
- Bring new eaves or foundations into conflict with bylaws.
If your original RPR shows a smaller footprint or an open deck, and you later build a fully or partially enclosed addition, you should expect the City will want to see a new RPR and will check it carefully against current setback rules. An addition that feels modest from the inside can be a significant issue on paper.
When the City reviews a new RPR showing a sunroom or enclosed addition, it goes to the archives and compares the current conditions against the original approved development plan for the property. If the addition represents a variation from what was last approved, the City will require a new development permit application to bring its records up to date — a process that adds time, cost, and complexity to your transaction.
7. Retaining Walls
Retaining walls matter on an RPR when they sit in the wrong place. While grades and drainage patterns are not shown on a Real Property Report, retaining walls themselves are documented as structures, and their position relative to property lines and rights-of-way is what the City evaluates.
The compliance concerns we see most often with retaining walls involve:
- Walls that encroach into neighbouring properties,
- Walls that extend onto City property, or
- Walls built within utility or drainage rights-of-way.
If a retaining wall was built without much thought to where the actual property line falls, a new RPR may reveal it sitting partially on land that belongs to a neighbour or the municipality. That can lead to encroachment advisories and additional steps before compliance can be achieved.
8. Driveway Widening And Front‑Yard Concrete
Driveway changes are easy to underestimate. Widening a driveway or adding substantial front‑yard concrete may conflict with:
- Maximum driveway width rules,
- Front‑yard landscaping requirements, and
- Utility or drainage corridors that cross the front of the lot.
An RPR which once showed a straightforward driveway can become non‑representative if a large portion of the front yard has been converted to hard surface. When the RPR is updated, those changes are captured and may trigger questions from both the City and cautious buyers.
9. Pergolas, Overhead Structures, And Tall Features
Pergolas, covered structures, and tall features such as trellises and privacy screens often straddle the line between “landscaping” and “structure.” Compliance issues tend to arise when:
- Pergolas are attached to the house or positioned less than one metre from it, effectively extending the building’s mass,
- Overhead structures sit within side or rear setbacks, or
- Tall features are placed in easements where the City expects clear access.
These changes are easy to overlook when you are thinking about aesthetics and shade. However, once a survey crew documents them on an updated RPR, they become part of the formal picture the City must evaluate. In some cases, a permit or relaxation may resolve the issue; in others, relocation or modification may be required.
What Happens If Your RPR Is Non‑Compliant?
A non‑compliant RPR does not automatically kill a deal, but it does change the conversation. Here is what typically happens when compliance issues surface:
- The City may issue a rejection letter or a compliance response highlighting specific structures and explain why they do not meet current rules.
- Buyers and their lawyers may ask you to resolve those issues before closing or to negotiate a solution, which may include repairs, permits, or financial holdbacks.
- Mortgage lenders may be unwilling to fund a deal until they are satisfied boundary, encroachment, and compliance risks are under control.
In practical terms, a non‑compliant RPR introduces delay and uncertainty into a transaction which is already stressful. The closer you are to closing when the issue is discovered, the fewer comfortable options you have. This is why Third Rock encourages owners and their realtors to surface potential problems early — ideally before the property ever hits the market.
How To Avoid RPR Compliance Problems Before Renovating
You do not need to order a new RPR for every project, but you also do not want to wake up to a compliance problem in the middle of a future sale. There are a few simple habits which reduce risk significantly.
- Look at your existing RPR before you plan major exterior changes. Notice where the house, garage, and existing improvements sit relative to property lines and easements. If you are planning to build closer to those lines, that is a cue to ask more questions.
- Check whether your project affects setbacks or easements. If you are working near a rear or side line, backing onto a lane, or building over areas labeled as utility or drainage, you may be in bylaw territory.
- Talk to a licensed surveyor before you commit. A quick call can clarify whether your plan is likely to affect compliance and whether a new RPR will be needed later.
Most importantly, assume visible, permanent changes outside the home will matter when you sell. Even if the City allowed the work at the time, your old RPR will not show it. Building with a future updated RPR in mind is one of the easiest ways to avoid a rejection letter the day before closing.
Need An Updated RPR In Calgary?
If you have made any of the changes described above since your last RPR was signed, it is worth asking whether an update or a new report is needed. In Alberta, only the surveyor who signed your existing RPR may issue an official update to the plan; any other firm must complete its own work and prepare a new RPR. Either way, the goal is the same — to bring your documentation back in line with reality and with current rules.
Third Rock Geomatics is set up to make the process as painless as possible:
- 3–5 business day turnaround on residential RPRs, plus City review time.
- Fixed, all‑inclusive pricing covers fieldwork, RPR preparation, and standard municipal application fees with no hidden line items.
- Hands‑off compliance management, where Third Rock submits your RPR to the City, tracks the response, and helps you understand any encroachment advisories or DP requirements that come back.
If you are unsure whether your home improvements have made your RPR effectively non‑compliant, you can share the date of your existing report and what has changed outside. We will tell you whether it is time for an updated or new RPR and what it means for your next transaction, so you’re not left hoping your old plan will hold up when it matters most.
Frequently Asked Questions
Can A Deck Make An RPR Non‑Compliant?
Yes. In Calgary, once a deck is 60 cm or more above grade, it must meet specific rear and side yard setbacks.
If you rebuild a deck higher, extend it closer to the rear fence, or push it into a tight side yard, the City may flag it during compliance review of your updated RPR. A deck that was fine in its original size and location can create issues after it is enlarged or raised.
Do I Need A New RPR After Renovations In Calgary?
You generally need a new or updated RPR when permanent exterior changes affect how improvements sit relative to property lines or easements. Interior renovations usually do not.
New or altered decks, fences, garages, sheds, concrete pads, window wells, A/C units, sunrooms, retaining walls, and widened driveways are the kinds of changes which may prompt a buyer’s lawyer or the City to insist on a current RPR before they are comfortable.
What Happens If My Garage Encroaches On A Setback?
If your garage is closer to a property line than current rules allow, the City may treat it as a setback infraction when it reviews your RPR. The response can range from a note on the compliance letter, to a requirement for a Development Permit, to, in more serious cases, changes to the structure.
The key is to learn about this early by getting an updated RPR and compliance review, rather than discovering it days before closing.
Can I Sell My House With A Non‑Compliant RPR?
Sometimes, but expect more negotiation and risk. A non‑compliant RPR does not automatically stop a sale, yet buyers and their lawyers will want to understand the issue and who will deal with it. This often means repairs, permits, holdbacks, or price adjustments.
The lower‑stress option is to identify and address problems before listing, so you and your realtor can set clear expectations instead of reacting under pressure.
How Long Does It Take To Update An RPR In Calgary?
For work Third Rock can perform, preparing a new or updated RPR typically takes 3–5 business days from quote approval, with the City’s compliance review time on top. Because municipal processing is outside our control, it is best to start early — well before conditions or closing dates are looming.
Does Adding A Shed Or Accessory Structure Affect My RPR?
It can. Sheds, playhouses, and other accessory structures may cause problems when they sit in utility or overland drainage easements or too close to property lines.
An older RPR showing an open yard will not capture these additions. When a new RPR is prepared, the City may flag them as encroachments or require permits or adjustments. If you are placing a shed near a rear or side boundary, it is worth checking your RPR for easements first.
