A laneway home sits at the back of a Vancouver lot that is already serviced. Water, sewer, storm and electrical have to reach the new home from where they are today. The route runs under the yard section 11.3.8.6 of the Zoning and Development By-law requires between the main house and the laneway home: at least 4.9 metres of ground that both buildings share.
This post walks through each service in the order the plans are drawn, and the choices that keep the cost down. If you want the by-law rules first, start with the laneway home guide or the deeper post on what the R1-1 rules allow.
Water
The City of Vancouver reviews the water plan during the permit application. A laneway home can share the main house's water service or have its own service to the City main. The civil engineer draws the route from the City's main to each home. The route under the shared yard runs around the trees the arborist report asks you to keep, under section 2.2.2 of the R1-1 District Schedule.
A shared service costs less to install than two separate services, because the trench, the connection to the main and the shutoff are counted once. A separate service makes sense when the main service to the house is already at its capacity, or when the owner plans to sell the laneway home separately later. The City's Strata Title Policies tell you that selling the laneway home on its own is restricted, so a separate service for that reason alone is not a decision to make in isolation. Read our laneway home guide for the strata rules before you choose.
Sewer and Storm
Sewer and storm are two separate systems in Vancouver, and both have to reach the laneway home. The sewer line ties into the main house's sewer, the lot's existing sewer connection, or a new connection to the City's sewer main, whichever the City accepts in the permit. The storm line carries roof water and surface water from the laneway home to the lot's storm connection, with the slope the civil engineer specifies.
Three things drive the cost of this work. The depth of the City's main under the lane, which sets how deep the trench goes. Rock in the trench, which the geotechnical report finds. The length of the run across the yard, which depends on where the house sits.
On a tight lot, a storm interceptor or a soakaway may be needed because the City's storm main cannot accept more flow. The civil engineer tells you during feasibility whether the lot is likely to need either one.
Electrical: The Subpanel and the Main Service
A Vancouver laneway home almost always runs as a subpanel fed from the main house's electrical service. That means one meter, one service drop from the lane or the street, and one bill, with a subpanel in the laneway home that carries its loads.
Whether the main service can handle the laneway home depends on what else is on it. A single detached house with a secondary suite inside and a laneway home at the back is three homes on one service. The electrical designer calculates the main service load for all three, plus the Level 2 charging outlets section 4.11.1 of the Parking By-law requires at every parking space, and compares that total to the service size. If the total exceeds the service, the service drop, the meter and the main panel are upgraded first.
Louis Nguyen, Costar's Director of Sales, has talked about this on a different building, the We Killarney multiplex, where the design put a one-bedroom unit at the ground level for a parent "with no stairs" and "mobility and accessibility" at the centre of the plan (REW video, 2026). A laneway home for the same person asks the same question of the electrical plan. A stair lift, a heat pump sized for an older parent's comfort, and a Level 2 outlet for a future electric car are loads to size the service for on day one. An electrical panel that cannot carry them later is the kind of change that runs new wire through finished walls.
Gas and Heating
A Vancouver laneway home may share the gas service with the main house or have its own, if gas is used at all. Many new laneway homes use electric heating and hot water instead. A heat pump handles space heating and cooling. A heat pump water heater or an electric water heater handles hot water. Cooking runs on an induction cooktop or an electric range. The result is a laneway home with no gas line at all, which simplifies the plumbing design and takes one connection charge out of the budget.
A fully electric laneway home costs more in service capacity, because the main electrical service has to carry what gas would have carried. The trade-off is one the mechanical designer sets up early. Our heat pumps for new homes and multiplexes post covers how a heat pump sits in a small new building and what sizing it correctly means for the service.
Carport and Parking Spaces
Section 4.1.1 of the City of Vancouver Parking By-law says no parking spaces are required for any development in Vancouver, except visitor and accessible spaces where the by-law lists them. A laneway home is not required to have a parking space. If you choose to add one, three things come with it. The parking space counts against the site coverage limit set in section 11.3.8.5. A carport over the space, open on at least 2 sides and under 7.3 metres long, stays out of the floor area under section 11.3.8.9. And a Level 2 charging outlet is required at the space under section 4.11.1.
Some families give the ground floor of the lane side to a carport, so the car sits under cover and the laneway home has one more wall of the lane to work with. Others use every square metre of the laneway home's footprint for living space and park on the lane or on the main house's driveway.
Civic Address and Mail
The laneway home has its own civic address from the City. That address is assigned during the permit stage and is used for mail, utility accounts, emergency response and the tenant's lease. Make the house number legible from the lane. A courier or a paramedic coming down the lane for the first time will look there first.
What This Means for the Budget
Servicing is the part of a laneway home budget most owners under-plan. The construction cost figures circulated online are for the building itself. The service work: trenching the yard, connecting water and sewer, upgrading the main electrical service, and paying the City's connection charges, is a separate line that the civil engineer and the electrical designer size during the permit stage.
The right time to ask about servicing is at feasibility, before you have paid for a design that assumes everything will fit. Costar prepares a scope with the civil engineer and the electrical designer at that stage, so the servicing cost is on the table before any drawings are drawn. Our laneway home service page covers how we deliver these projects in Vancouver, Burnaby and New Westminster.
