Can I dig and lay the drain myself?

In Saanich the district's own page says anyone may install perimeter foundation drainage, with the restriction falling on the storm lateral, the sanitary line, rainwater leader systems and water lines. In Oak Bay and Central Saanich you may even hold the plumbing permit yourself, if you can demonstrate code knowledge and produce an isometric drawing. Whether you should is a different question: depth, shoring and fall are where this work goes wrong.

Which municipality is strictest?

On the connection, North Saanich — municipal crews only, plus an inspection chamber at the property line. On the drain itself, Highlands and North Saanich both refuse to let it be concealed without acceptance, and Victoria inspects before backfill. Strict is good news for a homeowner: it is free oversight of the part you can never see again.

My contractor says no permit is needed. Is that a red flag?

Not on its own. In several municipalities the drain itself genuinely is not named as permitted work while the connection to the storm system is. It becomes a red flag when they cannot say which rule they are relying on — and in four municipalities nobody can say, because it is not published.

Does a permit make the work better?

A permit makes the work inspected, which is not the same thing but is the closest a homeowner gets. It also creates a record, which matters when you sell.

Something on this page is out of date. What now?

Tell us, with a link if the municipality publishes it. Every rule here was read from the municipality's own page, form or bylaw on 22 September 2026, and bylaws get amended — corrections are how this page stays right.

Does this need a permit in my municipality, and can anyone do it?

Permits, and who is allowed to do the work

Direct answer · reviewed 2026-09-22

It depends which municipality you are in and which part of the work you mean, because those two things are answered separately everywhere. The drain around your footings and the pipe carrying its water away to the street are different jobs, and the second is the one that is regulated. Three municipalities require the drain to be inspected before it is backfilled, which is the single most useful thing on this page for a homeowner: it is the only moment an independent person sees the pipe, the stone and the dampproofing. One municipality lets only its own crews make the connection to the main. Four publish a plumbing permit but say nothing about perimeter drainage at all, and those four are listed as unconfirmed rather than assumed.

Conditions and exceptions

This page reports what each municipality publishes, read from its own page, form or bylaw. It is not legal advice and it does not replace a call to your municipal office.
Where a municipality publishes nothing, we say so rather than assuming it matches its neighbour.
A contractor pulling the permit is normal and usually preferable. Confirm in the quote who is responsible for it.

Compare drainage quotes

Local evidence

Every figure below is quoted from the source shown or is our labelled estimate. Verified dates are the day we last checked the source; a figure whose check is overdue is withheld rather than shown.

Which municipalities inspect the drain before it is buried: Three publish the rule in their own bylaws: Victoria, Highlands and North Saanich; This is the one moment an independent person sees the pipe, the stone and the dampproofing · The other ten municipalities do not publish an equivalent rule; that is not the same as there being none; City of Victoria, Permits and Inspections Division · quoted · verified 2026-09-22
North Saanich: who may connect to the main: Municipal crews only — all sewer connections to municipal mains or laterals on municipal property or rights-of-way are to be made by municipal crews unless express written permission is given by the Director of Infrastructure Services; A contractor quoting the connection as their own work in North Saanich should be asked how · The drain on your own property is a separate question from the connection at the street; District of North Saanich · quoted · verified 2026-09-22
Oak Bay: replacing a storm drain lateral: A plumbing permit is required, and the page names it: new or altered plumbing systems include replacing storm drain and sanitary sewer laterals on private property; This is the only municipality found that names the private-property storm lateral explicitly · If the plumbing permit relates to a building permit, the building permit must be issued first; District of Oak Bay · quoted · verified 2026-09-22
Saanich: who is allowed to do which part of the work: Anyone may install perimeter foundation drainage, but storm laterals, sanitary sewer lines, rainwater leader systems and water lines may only be done by a certified plumber, a supervised indentured apprentice, or the registered owner-occupant with approved drawings; The drain itself and the pipe that carries its water away are governed differently — a quote can be legitimate for one and not the other; District of Saanich · quoted · verified 2026-09-22
Can a homeowner hold the plumbing permit?: In Oak Bay and Central Saanich, yes, on conditions: the homeowner must demonstrate plumbing code knowledge and submit an isometric drawing of the proposed plumbing; Central Saanich also requires a current business licence of a ticketed plumber · Holding the permit and being able to do the work safely are different questions; District of Oak Bay · quoted · verified 2026-09-22
Where we have not been able to confirm the rule: Four municipalities — Esquimalt, Colwood, Langford and Sidney — publish a plumbing permit but nothing about whether perimeter drainage itself is permitted work; Published-nothing is not the same as no rule; phone the municipality before you rely on it · Langford's published trigger is any installation, alteration or repair of a plumbing system, which may or may not be read to include a foundation drain; Township of Esquimalt · quoted · verified 2026-09-22

The inspection that happens before the trench is filled

Start here, because it is worth more to you than any warranty. Three publish the rule in their own bylaws: Victoria, Highlands and North Saanich

Highlands puts it in a list of things that may not be concealed without a Building Official's acceptance, alongside footing forms and rough-in plumbing. North Saanich's bylaw names perimeter drains and rain water leaders in the same list, and adds the sanitary, storm and water services before backfilling as a separate line. Victoria has its own version.

So in three of thirteen municipalities there is an independent set of eyes on the work at the one moment it can still be seen. Ask whether your job is being inspected, and ask for the result. If a contractor says no inspection applies, ask which municipality's rule they are relying on.

Who is allowed to do which part

This is where the municipalities genuinely differ, and the difference is always about the connection rather than about the trench beside your house.

Saanich draws the line explicitly. Anyone may install perimeter foundation drainage, but storm laterals, sanitary sewer lines, rainwater leader systems and water lines may only be done by a certified plumber, a supervised indentured apprentice, or the registered owner-occupant with approved drawings

North Saanich draws it much harder. Municipal crews only — all sewer connections to municipal mains or laterals on municipal property or rights-of-way are to be made by municipal crews unless express written permission is given by the Director of Infrastructure Services A quote in North Saanich that prices the connection as the contractor's own work should be able to explain how that squares with the bylaw.

Oak Bay is the only municipality found that names the private-property storm lateral directly. A plumbing permit is required, and the page names it: new or altered plumbing systems include replacing storm drain and sanitary sewer laterals on private property

And in two municipalities the permit can be yours rather than a contractor's. In Oak Bay and Central Saanich, yes, on conditions: the homeowner must demonstrate plumbing code knowledge and submit an isometric drawing of the proposed plumbing An isometric drawing is a real requirement, not a formality.

What each municipality publishes about drainage work
Municipality	What is published	Drain inspected before backfill
Victoria	Plumbing permit for a stormwater utility connection	Yes
Saanich	Anyone may install perimeter drainage; the storm lateral is restricted	Not published
Oak Bay	Plumbing permit names replacing storm drain laterals on private property	Not published
North Saanich	Connection to the main is municipal crews only; inspection chamber at the property line	Yes
Highlands	Perimeter drain tiles and dampproofing may not be concealed without acceptance	Yes
Central Saanich	Plumbing permit; a homeowner may hold it on conditions	Not published
View Royal	A named Drainage Connection Permit under Streets Bylaw No. 980	Not published
Sooke	Permit to connect to the municipal sanitary or storm sewer	Not published
Metchosin	Plumbing permit schedule includes altering storm and sewer, and sumps	Not published
Esquimalt	Plumbing permit covers sumps, catch basins and roof drains	Not published
Sidney	Stormwater system and a covenant on title, for new construction	Not published
Colwood	Separate building, plumbing, engineering and sewer connection applications	Not published
Langford	Plumbing permit for any installation, alteration or repair of plumbing	Not published

Three municipalities with a rule worth knowing by name

View Royal has a permit named after the job itself. A Drainage Connection Permit, issued under Streets Bylaw No. 980, Section 10.3, to install a storm sewer service connection

Sooke publishes the trigger plainly. A permit is required to connect to a municipal sanitary or storm sewer system, and to install or alter plumbing within a building or on a property — which Sooke notes applies to piping rather than to changing fixtures

North Saanich requires something the others do not, and it will matter to you years later. Every connection to a sanitary sewer or storm sewer service shall be fitted at the property line with an inspection chamber, except where one conforming to the Subdivision and Development Control Bylaw already exists A property with no chamber is harder and dearer to inspect for the rest of its life, which is a reason to ask for one even where it is not required.

Metchosin and Esquimalt both answer the question indirectly, through the schedule on their own forms. A plumbing permit item — the application form's own schedule lists “Altering Storm/Sewer”, “Storm/Sewer”, “Sump Pump/Catch Basin”, “Building Drain” and “Floor Drains” The application form's schedule of permitted items includes “AREA SUMP & CATCH BASIN”, “ROOF DRAIN” and “INTERNAL ROOF LEADER/RWL'S”; perimeter drainage itself is not mentioned anywhere the Township publishes

Sidney's published rule is aimed at a different situation. Applications for new construction, or projects that decrease site permeability, will likely require a storm water management system designed by a professional civil engineer, and a covenant must be registered on the property title before a building permit can be issued

Where the answer is genuinely not published

Four municipalities — Esquimalt, Colwood, Langford and Sidney — publish a plumbing permit but nothing about whether perimeter drainage itself is permitted work

This is not the same as those municipalities having no rule. It means their published material does not answer the question, and a homeowner relying on a neighbouring municipality's wording is guessing. The call is short and gets a quick answer.

Ask: does replacing perimeter drain tile need a plumbing or a building permit here?
Ask: does the connection to the storm system need a separate permit, and who is allowed to make it?
Ask: is there an inspection before backfill, and will I get the result?
Write down who you spoke to and when, and put it in the file with your quotes.

Questions homeowners ask

Can I dig and lay the drain myself?: In Saanich the district's own page says anyone may install perimeter foundation drainage, with the restriction falling on the storm lateral, the sanitary line, rainwater leader systems and water lines. In Oak Bay and Central Saanich you may even hold the plumbing permit yourself, if you can demonstrate code knowledge and produce an isometric drawing. Whether you should is a different question: depth, shoring and fall are where this work goes wrong.
Which municipality is strictest?: On the connection, North Saanich — municipal crews only, plus an inspection chamber at the property line. On the drain itself, Highlands and North Saanich both refuse to let it be concealed without acceptance, and Victoria inspects before backfill. Strict is good news for a homeowner: it is free oversight of the part you can never see again.
My contractor says no permit is needed. Is that a red flag?: Not on its own. In several municipalities the drain itself genuinely is not named as permitted work while the connection to the storm system is. It becomes a red flag when they cannot say which rule they are relying on — and in four municipalities nobody can say, because it is not published.
Does a permit make the work better?: A permit makes the work inspected, which is not the same thing but is the closest a homeowner gets. It also creates a record, which matters when you sell.
Something on this page is out of date. What now?: Tell us, with a link if the municipality publishes it. Every rule here was read from the municipality's own page, form or bylaw on 22 September 2026, and bylaws get amended — corrections are how this page stays right.

Your next step

Who pulls the permit is a line most quotes leave out, and the tool reports silence as silence.

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Sources

Plumbing permits — what needs one and who may do the work — District of Saanich, accessed 2026-09-22
Plumbing permits — City of Victoria, accessed 2026-09-22
Required Building Inspections (0021BLDG2021, 27 May 2022) — City of Victoria, Permits and Inspections Division, accessed 2026-09-22
Plumbing permits — District of Oak Bay, accessed 2026-09-22
Building and Plumbing Bylaw No. 1150, consolidated to 18 March 2019 — District of North Saanich, accessed 2026-09-22
Building permits and inspections — District of Highlands, accessed 2026-09-22
Drainage Connection Permit Application (November 2019) — Town of View Royal, accessed 2026-09-22
Building and renovating: when a permit is required — District of Sooke, accessed 2026-09-22
Residential permits — District of Central Saanich, accessed 2026-09-22
Plumbing Permit Application (November 2024) — District of Metchosin, accessed 2026-09-22
Application for Plumbing Permit (April 2023) — Township of Esquimalt, accessed 2026-09-22
Building permits and inspections — Town of Sidney, accessed 2026-09-22
Building permits and application forms — City of Colwood, accessed 2026-09-22
Building permits — City of Langford, accessed 2026-09-22

Code and municipal requirements are quoted from the sources above; price ranges are what named local companies publish, and the companies that publish them sell the work. Nothing here is a diagnosis of a particular house: only a camera in your own drain can tell you what is wrong with it. Report a correction.