Garden Suite Potential Report for realtors and investors
One address, one honest answer: can this lot take a garden suite, roughly what would it cost, what might it rent for, and is the “income potential” line on the feature sheet actually true. $149.99 + HST per address, delivered within 2 business days, with a one-page summary you can hand straight to a client.
At a glance
After you pay, email the address and the listing link to info@gardensuiteontario.com. That is the whole intake form.
The Garden Suite Potential Report is a desk review of one Ontario address. We check the town’s garden suite rules, lot size, setbacks, servicing and septic flags, then give a rough build budget, a likely rent range and a plain value-add story. It costs $149.99 + HST, arrives within 2 business days, and includes a one-page client-ready PDF. It is not an appraisal or a zoning certificate.
“Great Garden Suite Potential!” Says Who?
Every second listing with a big backyard now says it. Some of those lots really can take a one-bedroom suite out back. Some have a septic bed exactly where the suite would go, a 4 metre side yard that blocks fire access, or a town by-law that still only allows a temporary garden suite for a family member.
We have been building since 1979 and we get the call after the sale, when the new owner finds out. It is not a fun call for anyone. The buyer feels misled, and the agent’s name is on the feature sheet.
The Real Estate Council of Ontario has been clear that agents should do their homework before advertising a second unit or rental income, and should confirm permitted use for their own client. This report is a fast, cheap way to do that homework on the “could build one” question, with sources you can point to.
Four Questions Answered for One Address
Every report covers the same ground, so you can compare one listing to the next.
1. Can this lot take one?
The town’s current rules for a detached additional unit: what it is called there, whether it is permitted as of right or only by temporary use by-law, size and height caps, setbacks, lot coverage, parking and fire access path.
- Lot size and shape from the listing, survey or municipal mapping
- Where a suite could physically sit, and what is in the way
- Conservation authority, heritage or flood flags we can see
2. Can it be serviced?
Water, sewer and hydro are the hidden half of every garden suite budget. We note what serves the house now and how far a suite would have to reach.
- Municipal water and sewer, or private well and septic
- Septic red flags: bed location, age, likely capacity issue
- Trench length and slope as a rough risk, not a design
3. What would it cost?
A rough all-in range for a typical one-bedroom suite on this lot, using the same cost standard we use across this site, adjusted for what we can see.
- Base range for about 500 sq ft
- Septic, long service runs or tight access called out separately
- Fees and development charge status for the town
4. Is the value-add real?
A likely rent range from CMHC rental market data and current local listings, and a plain-English story about what a suite does and does not do for value.
- Rent range, not a promise
- Simple payback math at the rough budget
- Honest notes: no severance, lender and appraiser caution
Rough Budget Without the Wishful Thinking
These are the site-wide ranges behind every report. The report adjusts them for the lot in front of us.
| Item | Typical range, 2026, outside Toronto | What moves it |
|---|---|---|
| One-bedroom garden suite, about 500 sq ft, all-in | $185,000 – $235,000 | Finish level, foundation, access for equipment |
| Cost per square foot | $340 – $490 per sq ft | Small buildings cost more per foot; the kitchen and bath do not shrink |
| Rural septic work, if needed | $15,000 – $45,000+ | Existing system age and size, soil, room for a new bed |
| Municipal fees and charges | Varies by town | Permit fees, any development charges, registration |
Last checked October 2026 · Source: GardenSuiteOntario.com cost standard, see Garden Suite Cost in Ontario and the cost calculator
If a client has been told a backyard suite is “about $100,000”, the table above is the conversation you want to have before they firm up an offer, not after. A $90,000 prefab shell is real. A $90,000 garden suite you can rent, with a foundation, services, permits and a kitchen, mostly is not.
On rural lots the septic line is the one that surprises people. A suite usually adds flow to the system, and an older bed that was sized for the house alone may need to be upgraded or replaced. Septic design is done through SepticReplacement.ca; the report only flags the risk.
Three Ways It Earns Its $149.99
Listing feature sheets
Instead of “garden suite potential”, you can write what the report found: “Town permits a detached additional unit on this lot type; preliminary review attached.” If the answer is no, you just saved yourself a line that would have caused trouble.
Buyer consults
Your buyer loves a property because of the backyard plan. Order a report before the offer, hand them the one-page summary, and let them see the rough budget and the risks in writing. Buyers remember the agent who told them the truth early.
Investor deal screening
Investors looking at several addresses can run a 5-pack across a shortlist and drop the lots with septic, servicing or setback problems before anyone pays for a survey or an appraisal.
Seller pre-listing advice
A seller asking whether to build a suite before selling, or just market the potential, gets a realistic budget and rent range. Building one to sell is rarely a winner on cost alone; the report says so when it is not.
Screening a few addresses?
The 5-pack is $499.99 + HST, about $100 per address, and is good for 12 months. Use it on listings, buyer shortlists or investor deals.
What Is Inside the Garden Suite Potential Report
Section headings from a typical report. Each section is short, sourced, and written for a client to read, not a planner.
| Section | What it covers |
|---|---|
| 1. Verdict | Likely yes, likely yes with conditions, unclear, or likely no, with the one or two reasons that decide it |
| 2. Town rules | The by-law term used, permitted as of right or temporary use, size and height caps, setbacks, coverage, parking, fire access, with links to the official pages |
| 3. Lot fit | Lot dimensions, a rough sketch of where a suite could go, and what is in the way: trees, easements, the septic bed, the pool |
| 4. Servicing | Municipal or private services, rough distance for water, sewer and hydro, septic red flags |
| 5. Rough budget | Base range plus lot-specific extras, permit fees and development charge status |
| 6. Likely rent | A rent range for a one-bedroom suite in the area and the sources used |
| 7. The value-add story | What a suite adds in income and use, why it usually cannot be severed and sold off, and how lenders and appraisers tend to treat it |
| 8. Next steps | What the buyer would need: survey, zoning confirmation from the town, septic inspection, permit drawings |
| One-page summary | Client-ready PDF with the verdict, budget, rent range and the not-an-appraisal disclaimer. GardenSuiteOntario.com named as the source, small, at the bottom. No builder ad. |
Last checked October 2026 · Rules sources are each town’s official by-law and planning pages, linked in every report; rent data from CMHC
Read This Part Before You Quote It
It is not an appraisal. We do not give a market value or say what the property is worth with or without a suite. For that you need a designated appraiser, such as an AACI or CRA member of the Appraisal Institute of Canada.
It is not a zoning certificate. Only the town can confirm what is permitted on a specific lot. Many towns will issue a zoning compliance letter for a fee. Our report tells you what the published rules say and where the risks are, so you know which question to ask the town.
It is not a septic inspection or design. We flag the risk from what we can see. A septic inspection tells you the condition, and design goes through SepticReplacement.ca.
It is not a quote. The budget is a range for planning a conversation. A builder’s price needs drawings and a site visit.
Think of it like a good home inspector’s walk-through, except for a building that does not exist yet. Useful, honest, and not the last word.
Pay, Email the Address, Done
Single Address
One address, full report plus the one-page client PDF, within 2 business days.
5-Pack
Five addresses, use them any time within 12 months of purchase. Same report, same 2 business day turnaround on each.
Pay through the secure checkout
Pick single or 5-pack. You get a Stripe receipt by email, with HST shown.
Email us the address and listing link
Send them to info@gardensuiteontario.com. A survey, site plan or septic records help if you have them. Not required.
Get the report within 2 business days
The clock starts when we have the address. If something needs a call to the town to settle, we tell you in the report rather than guess.
Rule of thumb: order before you write the feature sheet, not after. Fixing a listing line costs nothing. Explaining one to a buyer’s lawyer costs a lot more.
Find out if the backyard really is the selling point
One address, $149.99 + HST, back within 2 business days, with a one-page summary your client can read in two minutes.
Garden Suite Report Questions From Agents
What does the Garden Suite Potential Report cost?
A single address is $149.99 + HST. A 5-pack is $499.99 + HST, which works out to about $100 per address, and the five reports can be used any time within 12 months of purchase. Each report is delivered within 2 business days of us receiving the address.
Is this an appraisal?
No. The report does not give a market value for the property, with or without a garden suite. It covers rules, lot fit, servicing, a rough build budget and a likely rent range. If you need a value, hire a designated appraiser such as an AACI or CRA member of the Appraisal Institute of Canada.
Can I say a property is approved for a garden suite based on this report?
No. Only the municipality can confirm what is permitted on a specific lot, and many towns issue a zoning compliance letter for a fee. The report tells you what the published rules say and flags the risks. A fair way to use it in marketing is to say a preliminary garden suite review is available, and attach the one-page summary.
How do I send you the property after I pay?
Email the full address and the listing link to info@gardensuiteontario.com. If you have a survey, site plan, septic records or photos of the backyard, attach them. They help, but they are not required. The 2 business day clock starts when we have the address.
Does the report work for rural properties on well and septic?
Yes, and that is where it is most useful. Rural lots often allow a garden suite only by temporary use by-law, and the septic system is the usual deal-breaker. The report flags septic risk and notes that rural septic work commonly adds $15,000 to $45,000 or more. Septic design itself goes through SepticReplacement.ca.
Where does the rent estimate come from?
We use CMHC rental market data for the area along with current local listings for comparable one-bedroom units. It is a range, not a promise. A brand new detached suite with its own entrance often rents near the top of the local range, but vacancy, finishes and tenant demand all matter.
Does a garden suite add value to the property?
Usually it adds income and use, but not always dollar-for-dollar value. In most Ontario towns a garden suite cannot be severed and sold separately, so it sells with the house. Appraisers and lenders vary in how much credit they give it. The report explains this plainly, so your client does not assume a $220,000 build adds $220,000 to the price.
Is the one-page summary full of builder advertising?
No. The summary names GardenSuiteOntario.com as the source in small print at the bottom, with the disclaimer. There is no builder ad and no sales pitch, so you can hand it to a client or attach it to a feature sheet without it looking like someone else’s brochure.
Can investors order the report, or only agents?
Anyone can order it. Investors use the 5-pack to screen a shortlist of addresses and drop the lots with servicing, septic or setback problems before paying for surveys or appraisals. Homeowners planning their own build usually want the deeper $399 + HST Feasibility Report instead.