Treadstone Associates
Case File № 941 · Construction & Land

The garden had a ceiling

a Kamloops well's domestic-use limit

A Kamloops-area acreage self-build relied on a new well the province classes as exempt from licensing -- but only for domestic use. The owners' plan to irrigate a small orchard exceeded the domestic garden allowance in BC's own definition, tipping the well into a licensable, non-domestic use before the lender would rely on it as a confirmed water source.

British ColumbiaSelf-build · ConventionalFiled August 11, 20265 min read
1,000 m²

the maximum garden area BC's Water Sustainability Act still counts as domestic use, exempt from licensing

1,400 m²

the planned orchard block -- past the domestic-garden line and into a licensable irrigation purpose

80%

loan-to-value on the conventional construction-to-permanent mortgage

Anonymized illustration. The borrowers, dollar figures, and rates in this file are an illustrative composite — no real client is identifiable, and any rate shown is illustrative, not a quote. The rules are real: every regulatory figure is cited to its source in the Sources section, and the math computes exactly as shown.

№ 01

The client

A couple building on a 4-hectare acreage outside Kamloops, financing off a newly drilled well with a certified flow and potability test. Alongside the household well they planned a small orchard block for personal use and a couple of goats.

Property

4-hectare acreage, Kamloops area

New drilled well, potability and flow tested

Appraised value on completion

$780,000

Down payment

$156,000 (20%)

Mortgage

$624,000 conventional

Planned use

Household water, plus a 1,400 m² orchard block

№ 02

The problem

The lender's construction-to-permanent commitment was conditional on a confirmed water source -- not just a passed flow and potability test, but a lawful right to use the water for what the property actually needed. The file's first read assumed the exemption applied: household wells are commonly told they don't need a licence at all.

What ‘domestic purpose’ actually covers

  • BC's Water Sustainability Act exempts groundwater used only for a domestic purpose from licensing: drinking water, food preparation and sanitation; fire prevention; watering animals or poultry kept for household use or as pets
  • The exemption's own definition includes irrigating a garden -- but only up to 1,000 m² adjoining and occupied with the dwelling
  • Water used for a larger planting, described in the Act as an irrigation purpose, is a separate, non-domestic use category -- and non-domestic use requires a provincial water licence and the fees and rentals that come with it
  • A well can be exempt for household use and still require a licence the moment any use on the same property crosses into irrigation purpose

The couple's household use -- drinking water, sanitation, the goats -- stayed squarely inside the domestic exemption on its own. The 1,400 m² orchard block did not: at 40% over the Act's 1,000 m² domestic-garden ceiling, it read as an irrigation purpose, not a garden, the moment the site plan showed it drawing from the same well.

№ 03

The numbers

This is a conventional 80% LTV mortgage -- 44% shown below is the lender's own applied policy, not an insurer's ceiling.

The buildAmount
Appraised value on completion$780,000
Down payment (20%)$156,000
Mortgage$624,000

Domestic garden vs. irrigation purpose

Use on the propertyDomestic (exempt) or licensable?
Household drinking water, sanitation, fire preventionDomestic -- exempt
Water for the goats, kept for household useDomestic -- exempt
Garden up to 1,000 m² adjoining the dwellingDomestic -- exempt
Orchard block at 1,400 m²Irrigation purpose -- licence required

Sizing and ratios

Mortgage mathFigure
Minimum qualifying rate — greater of contract + 2% and 5.25%7.29%
Monthly payment at the qualifying rate$4,483
Monthly payment at the 5.29% contract rate$3,733
GDS (qualifying payment + $380 tax + $160 heat) ÷ income39.9%
TDS (housing + $300 other debt) ÷ income42.2%
№ 04

The solution

The broker had the couple's environmental consultant re-draw the site plan with the orchard scaled to fit inside the 1,000 m² domestic-garden allowance, which removed the licensing question for that block entirely -- the goats and household use were never in dispute.

For the small remaining acreage they still wanted planted beyond the garden line, the file proceeded with a provincial groundwater licence application filed alongside the mortgage application rather than after it, so the loan-to-value structure and the lender's water-source condition weren't racing each other at the finish.

A submortgage broker in BC is required to hold a current licence with BCFSA before advising on or arranging a mortgage of this kind.

№ 05

The outcome

The mortgage funded at $624,000, 80% LTV, on a five-year fixed at 5.29%, qualifying payment $4,483, GDS 39.9% and TDS 42.2%, once the domestic-use portion of the well was confirmed exempt and the larger planting was reduced to fit the same exemption -- no licence application needed to hold up the closing at all.

№ 06

What to take from this file

  • 01'Domestic use' has a defined ceiling, not a general household exception. BC's Water Sustainability Act caps the domestic-garden allowance at 1,000 m² adjoining the dwelling -- past that line, irrigation is a separate, licensable use category.
  • 02Household animals and a garden within the line stay exempt on their own. Don't assume any additional planting or livestock use automatically pulls the whole well into licensing -- check what's actually over the threshold.
  • 03A passed potability and flow test is not the same thing as a confirmed water source. A lender's condition can also require a lawful right to the intended use, which a physical test alone doesn't establish.
  • 04Scaling a planned use to fit an existing exemption can be faster than licensing it. Redesigning the orchard's footprint solved the problem in a week; a water licence application would not have.

Sources

Every regulatory figure in this file traces to one of these primary sources. Client details and anything that varies by lender are illustrative, as flagged below.

Illustrative in this file — lender-specific, not rules:

  • 5.29% contract rate — rates move daily; not a quote.
  • $380 property tax / $160 heat / $300 other debt — illustrative carrying costs for this file.
  • 44% TDS shown for context — this is a conventional mortgage; this is the lender's own applied policy, not an insurer's rule.

Authority & provenance

How this case file was built

We publish the origin, the verification method and the reviewer for every case file, so you can judge how far to trust it before you rely on it with a client.

Where it comes from

Derived from files handled by Treadstone’s fulfillment desk and from scenarios contributed by partner brokerages. Names, employers, exact amounts and dates are changed so no client or file is identifiable.

Provenance: Composite — a pattern seen repeatedly on fulfilled files, not a single transaction.

What is verified

Every regulatory figure traces to a primary source listed above and was checked against it on the date shown. The arithmetic is recomputed by machine on every rebuild.

Anything that varies by lender is labelled illustrative rather than stated as a rule.

Who reviewed it

Reviewed for Canadian regulatory accuracy before publication, and re-checked whenever a cited rule changes.

Reviewed by: Nicholas Parson, Treadstone Associates — reviews every case file before publication.

First published 11 August 2026Rules last verified 11 August 2026Next scheduled review 11 February 2027

This case file is professional reference material for licensed mortgage professionals. It is not advice to a borrower, and it is not a lender commitment. Insurer rules, qualifying rates and provincial taxes change — confirm the current position with the insurer, regulator or lender before you rely on any figure here in a live file.

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Files like this are daily work for our desk.

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