Delta allows up to two detached accessory dwelling units — a garden suite and/or a coach house — on the majority of URBAN single-family and duplex lots, with no rezoning or development permit needed. The hard gates are the Urban Containment Boundary and the ALR, not servicing: outside the UCB a lot gets one detached ADU (Bylaw 7600 s.6.1.2(h)(v)), and ALR lots get none — a farm house, secondary suite and accessory farm dwelling only (s.6.1.2(h)(iv)). Parking is one space per unit, waived under 33 m2 and within 400 m of frequent transit on Scott Road.
Rules verified 2026-08-02 · Pre-screening only, not a permit determination.
Each statement below was read from the document it links to, on the date beside it. Where the wording is precise, that is because the bylaw is.
The 19 zone codes we have mapped for Delta, and the reading recorded for each. The list can include commercial, industrial, agricultural and site-specific codes, so its length is not necessarily a count of residential zones. This is a statement about the zone, not a verdict on any particular lot, and it is not the whole bylaw — a zone that is not listed here has not been read individually.
Likely the reading recorded for this zone is favourable. Unlikely the reading recorded for this zone is not favourable.
| Zone | Detached suite | Why |
|---|---|---|
| RD1 | Likely | Duplex/Single Detached Residential 1 (s.12.10) — the s.6.1.2 ADU entitlement runs to lots whose permitted uses include single-detached or duplex dwellings; UCB/ALR carve-outs apply. |
| RD2 | Likely | Duplex/Single Detached Residential 2 — same UCB/ALR-gated entitlement as RD1. |
| RD3 | Likely | Duplex/Single Detached Residential 3 — same UCB/ALR-gated entitlement as RD1. |
| RD4 | Likely | Duplex/Single Detached Residential 4 — same UCB/ALR-gated entitlement as RD1. |
| RS1 | Likely | Single Detached Residential 1 — up to two detached ADUs (garden suite and/or coach house) inside the Urban Containment Boundary; one detached ADU outside the UCB; none on ALR land (Bylaw 7600 s.6.1.2(g)/(h)). |
| RS2 | Likely | Single Detached Residential 2 — same two-ADU entitlement as RS1 inside the UCB; one ADU outside the UCB; none on ALR land. UCB and ALR status are the deciding checks, not septic-vs-sewer. |
| RS3 | Likely | Single Detached Residential 3 — same UCB/ALR-gated ADU entitlement as RS1. |
| RS4 | Likely | Single Detached Residential 4 — same UCB/ALR-gated ADU entitlement as RS1. |
| RS4A | Likely | Single Detached Residential 4A — same UCB/ALR-gated ADU entitlement as RS1. |
| RS5 | Likely | Single Detached Residential 5 — same UCB/ALR-gated ADU entitlement as RS1. |
| RS6 | Likely | Single Detached Residential 6 — same UCB/ALR-gated ADU entitlement as RS1. |
| RS7 | Likely | Single Detached Residential 7 — same UCB/ALR-gated ADU entitlement as RS1. |
| RSC | Likely | Single Detached Residential Coach House Zone (Bylaw 7600 s.11.80) — a DECLARED LEGACY ZONE: s.11.80.1 states it is 'not intended for new development'. Existing RSC lots keep the same UCB/ALR-gated detached-ADU entitlement as other RS zones, but do not treat RSC as Delta's pathway for new coach-house development. |
| A1 | Unlikely | Agriculture zone — garden suites and coach houses are NOT permitted uses in A1 (s.10.10.2/10.10.3): only a farm house, accessory farm dwelling unit, additional farm house, secondary suite and migrant worker housing. s.6.1.2(g) expressly excludes A1 from the SSMUH uplift, and A1 residential floor areas mirror the ALR Use Regulation (farm house 500 m2; accessory farm dwelling 90 m2 up to 40 ha / 186 m2 above). |
| A2 | Unlikely | Golf Course and Agriculture zone — no garden-suite/coach-house use; ALR rules typically apply. |
| A3 | Unlikely | Urban Interface Agriculture zone — no garden-suite/coach-house use; ALR rules typically apply. |
| MA1 | Unlikely | Musqueam lands zone — outside the standard municipal ADU entitlement. |
| RSF | Unlikely | Not an ADU-eligible single-detached zone under the s.6.1.2 entitlement — a specialist confirms any exception by hand. |
| TA1 | Unlikely | Tsawwassen First Nation adjacent zone — outside the standard municipal ADU entitlement. |
Each detached ADU must be LESS THAN 50% of the gross floor area of the principal dwelling, excluding an attached garage (Bylaw 7600 s.6.1.8(a)(ii)); up to 42 m2 of each coach house/garden suite is excluded from the lot's maximum floor area (s.6.2.17(a)(v)). Heights (Bylaw 8507, 2025): garden suite 1.5 storeys — 4 m mid/flat roof, 5.5 m pitched ridge; coach house 2 storeys — 6.75 m mid/flat, 8 m pitched. Setbacks 1.5 m interior/exterior side and rear; the ADU may sit no closer to the front lot line than the principal dwelling.
| Build | Planning estimate |
|---|---|
| One bedroom | $355,000 |
| Two bedroom | $485,000 |
| Utility connections, on top | $30,000 – $80,000 |
These are KYRAX's own mid-range planning figures, not Delta's and not a quote. They are for working out whether the idea is worth pursuing. Real quotes for a completed build in this region have ranged from roughly $275,000 to $840,000 depending on size, site access, servicing and finish, and only a site visit narrows that.
| Suite | Indicative band |
|---|---|
| One bedroom | $1,550 / month |
| Two bedroom | $1,760 / month |
Indicative band for Delta as of 2025-10, drawn from: CMHC Rental Market Survey, October 2025 — Vancouver CMA Zone 20 (Delta), private apartment average rents: 1BR $1,550 (reliability b) / 2BR $1,760 (a); rmr-vancouver-2025-en.xlsx No survey measures laneway suites specifically, so these describe comparable rentals rather than laneway homes as a class.
This page is the rule for the zone. Your lot is specific — its width, what is already built on it, and how it is serviced all change the answer. The check reads Delta's own zoning and parcel data for your address, then tells you which of those things it could and could not confirm.
Delta allows up to two detached accessory dwelling units — a garden suite and/or a coach house — on the majority of URBAN single-family and duplex lots, with no rezoning or development permit needed. The hard gates are the Urban Containment Boundary and the ALR, not servicing: outside the UCB a lot gets one detached ADU (Bylaw 7600 s.6.1.2(h)(v)), and ALR lots get none — a farm house, secondary suite and accessory farm dwelling only (s.6.1.2(h)(iv)). Parking is one space per unit, waived under 33 m2 and within 400 m of frequent transit on Scott Road.
Each detached ADU must be LESS THAN 50% of the gross floor area of the principal dwelling, excluding an attached garage (Bylaw 7600 s.6.1.8(a)(ii)); up to 42 m2 of each coach house/garden suite is excluded from the lot's maximum floor area (s.6.2.17(a)(v)). Heights (Bylaw 8507, 2025): garden suite 1.5 storeys — 4 m mid/flat roof, 5.5 m pitched ridge; coach house 2 storeys — 6.75 m mid/flat, 8 m pitched. Setbacks 1.5 m interior/exterior side and rear; the ADU may sit no closer to the front lot line than the principal dwelling.
As a planning estimate, around $485,000 for a two-bedroom build and $355,000 for a one-bedroom, plus utility connections. These are KYRAX's own mid-range figures for budgeting, not Delta's and not a quote — real quotes in this region have ranged from roughly $275,000 to $840,000.
An indicative band for Delta is about $1,550 a month for a one-bedroom and $1,760 for a two-bedroom, as of 2025-10. No survey measures laneway suites specifically, so that is drawn from comparable rentals: CMHC Rental Market Survey, October 2025 — Vancouver CMA Zone 20 (Delta), private apartment average rents: 1BR $1,550 (reliability b) / 2BR $1,760 (a); rmr-vancouver-2025-en.xlsx
Delta's own documents use both terms, and this page treats them as one question: a self-contained home behind the main house. Where a particular zone treats them differently — a lane requirement that applies to one and not the other, for instance — that zone's row in the table above says so in the bylaw's own words.
The reading recorded as favourable covers RD1, RD2, RD3, RD4, RS1, RS2, RS3, RS4, RS4A, RS5, RS6, RS7, RSC. Others are conditional, need individual review, or are not favourable; the table above lists all 19 zones that were read. Which zone your lot is in is what the address check resolves.
When you enter an address, the check reads Delta's own parcel and zoning data for that specific lot. It resolves the parcel, reads the zone, and tests whether a suite of the size the bylaw permits fits behind the existing house once coverage and setbacks are taken out.
It reports what it could not establish as plainly as what it could. A favourable answer requires a real zoning read — the absence of an objection is not treated as a permission. Pre-screening only, not a permit determination.
BC Building Code 2024 · checked 2026-09-10
Outside the City of Vancouver, a laneway home in the Lower Mainland is designed to the BC Building Code 2024, which took effect on 8 March 2024 and is based on the National Building Code of Canada 2020. It applies to projects whose building permit was applied for after that date, so the edition that governs your build is fixed by when you apply, not by when you break ground.
The 2024 edition's earthquake design and adaptable dwelling requirements did not arrive with the rest of it. The 2018 rules stayed in force for permits applied for up to 9 March 2025, and from 10 March 2025 the 2024 requirements apply to all new projects. A set of drawings prepared under the older seismic rules is therefore only still usable if the permit application beat that date.
Projects already in stream when the edition changed can qualify for an extended exemption running to 8 March 2027. If a design has been sitting for a couple of years, which edition it was drawn to is worth confirming before it goes any further.
The provincial code takes Delta's design value at the Ladner station, 3 m up: a 1-in-50 ground snow load of 1.3 kPa, plus 0.2 kPa for rain falling on that snow.
Across the stations the provincial table lists for these municipalities, the ground snow load runs from 1.3 kPa at Ladner to 2.9 kPa at Burnaby (Simon Fraser Univ.) — more than double. Coquitlam, which the table does not list, publishes its own values, and they reach 5.7 kPa between 401 and 425 m. That is why the same laneway design can need a heavier roof structure in one city than the next. Wind barely varies: at the stations the table lists, 1-in-50 hourly wind pressures run 0.44–0.47 kPa.
These are ground loads at a named weather station and elevation, not the load on a roof: the code derives roof loads from them, and a station is not a lot. The designer of record works out the value for the actual site.
Code editions, effective dates and station design values. The values for a specific building are for its designer of record. www2.gov.bc.ca · verified 2026-09-10 · www2.gov.bc.ca (PDF) · verified 2026-09-10 · coquitlam.ca · verified 2026-09-10
The documents the statements above were read from, with the date each was last checked.
The rules change at every city line. These pages are built from the same bylaw reads.
This page describes Delta's rules as they read on 2026-08-02. Bylaws change. Nothing here is a permit determination or legal advice, and only the municipality can approve a build.