Custom Homes
What Hillside Lots Demand: A Technical Guide to Building in Capitol Hill and Burnaby Heights
Two of Burnaby's most coveted custom-home neighbourhoods sit on real grade. Here's what changes when the lot has a slope, a view, and a tree canopy that all want different things from the design.
Capitol Hill and Burnaby Heights are two of the most desirable custom-home neighbourhoods in the entire Lower Mainland. Both sit on the lower flanks of Burnaby Mountain, both deliver mountain and inlet views from the right elevation, and both routinely sell to owners who specifically want a hillside lot. They are also two of the most technically demanding sites we build on. The combination of slope, soil variance, mature tree canopy, and view-driven massing produces design constraints you don't see on a flat infill lot in Brentwood or Metrotown.
This piece is what we walk Burnaby clients through when their target lot has real grade. We build across Greater Vancouver — Burnaby first, then Vancouver, North Vancouver, Coquitlam, West Vancouver, and out into the Fraser Valley — but Capitol Hill and Burnaby Heights are where hillside design pays off the most when it's done right.
The geological context most owners don't know
Burnaby Mountain rises to about 370 metres at its summit, and Capitol Hill, Burnaby Heights, and the upper portions of Forest Glen and Buckingham Heights all sit on its lower slopes. The geology of the mountain is not uniform.
On the steeper northern slopes and where construction has historically scraped away the original surface, soils are shallow. Topsoil sits on a layer of silty sands and gravel that overlies more variable substrates as you move into the mountain itself. On the gentler southern aspect, where most of Capitol Hill sits, the soil profile tends to be deeper and more forgiving, but it can still vary materially from one lot to the next.
What that means in practice: the soils report on a Burnaby Mountain lot is not optional. We've seen adjoining lots on Capitol Hill where one is straightforward stripped-and-poured footings and the next requires either deep piers down to competent material or a properly engineered stepped foundation. The cost difference between those two approaches is substantial, and you don't want to discover it after the structural drawings are issued.
The geotechnical report is the cheapest decision you'll make
A proper geotechnical report on a hillside Burnaby lot does three things:
- Identifies the depth and quality of competent bearing material under the building footprint
- Surfaces any existing fill from prior construction or grading work, and where the natural soil starts
- Recommends a foundation type appropriate to the slope, soils, and drainage of the specific lot
The third item is where the design decision lives. Three foundation strategies show up regularly on Capitol Hill and Burnaby Heights:
- Conventional stripped footings on a daylight basement. Best for moderate-grade lots where competent material is reasonably shallow. Most cost-efficient, most familiar to local trades.
- Stepped foundations. The footings step down the slope rather than excavating to a single elevation. Reduces excavation cost on steeper grade, allows the building to follow the lot rather than fighting it.
- Deep piers or caissons to bedrock. Reserved for the steepest lots, the lots with deep fill, or the lots where competent material is several metres down. More expensive, but the right tool when the soils call for it.
The structural and architectural sets have to be designed for the foundation type the geotech recommends. Putting that decision in the right place — at the start of design, not after the building permit is in — is the single biggest planning move on a hillside Burnaby site.
Hillside design wants a different floorplate
Owners moving up to a Capitol Hill lot from a flat Burnaby lot in Big Bend or Edmonds frequently bring a floorplate that wants a single-storey rambler footprint or a wide two-storey box. Neither is what the lot is asking for.
A hillside lot rewards a different geometry. Three patterns we use repeatedly:
- Walkout daylight basement. The downhill side of the home opens to grade, with full-height windows and sometimes a covered patio. The basement reads as a primary living level, not as storage. On a sloped Burnaby Heights lot facing south, this can recover what would otherwise be a buried, dark level.
- Cantilevered upper level. The upper level extends past the lower envelope on the view side, with the cantilever supported by the structure rather than additional foundation. Reduces the footprint footprint, increases the experiential drama of the view, and avoids further foundation excavation downhill.
- Stepped massing. The roofline and the floor levels step with the slope, instead of presenting a single tall vertical face on the downhill elevation. Better for the streetscape, better for the neighbours, often better for the structural calculation.
These aren't trendy moves. They're responses to the lot. A hillside floorplate done well looks intentional from the street, comfortable inside, and inevitable when you walk the property.
Why orientation beats view
A common mistake on a Capitol Hill or Burnaby Heights lot is to orient every primary room toward the view. The view from Capitol Hill is real — on a clear day you can see across Burrard Inlet to the North Shore mountains and on the right lots out to English Bay — and the temptation to face every window at it is understandable.
It's also a mistake. The view is north-facing on most of these lots, which means the rooms with the best sight lines are also the rooms with the worst light. A primary living space oriented purely north loses the warm afternoon light, the morning sunrise, and the seasonal arc of the sun across the year.
A better hillside design uses the view as one input and the light as another. The breakfast room and the kitchen want morning light, which is east. The living room benefits from the late-afternoon south light. The view becomes a feature on selected walls rather than the dominant axis of the entire floorplan. The result is a home that feels good in February at 4pm, not just in July at 6pm.
The tree canopy is part of the design problem
Capitol Hill and Burnaby Heights are also tree neighbourhoods. Mature Douglas fir, western red cedar, and big-leaf maple anchor most of the lots, and the canopy is part of why owners buy in. It's also why the Burnaby Tree Bylaw lands harder here than anywhere else in the city.
Any tree on the lot with a trunk diameter of 20 cm or larger is a Protected Tree under the bylaw when the property is the subject of a development application. That captures most of the mature canopy on a typical hillside lot. The implications cascade:
- Removed protected trees must be replaced one-for-one or more, with replacement coniferous trees a minimum of 2 metres tall and replacement deciduous trees a minimum of 5 cm trunk diameter
- Tree-protection zones during construction extend out to the drip line of each retained tree, which on a mature Douglas fir can be a six-metre radius from the trunk
- Grade changes within the tree protection zone can compromise root health even when the tree visually looks fine
For a hillside lot where the design wants a daylight walkout basement, the tree-protection zones around mature firs at the back of the lot can directly conflict with the excavation footprint of the basement. Resolving that conflict at the schematic stage — by adjusting the building footprint, the basement geometry, or the tree retention plan — is a different conversation than discovering it during framing.
Drainage on a slope is an underestimated decision
Lower Mainland rainfall is real, and on a hillside lot it's a structural problem, not a landscaping problem. The water is going to land on the upper part of the lot and want to move downhill. If your design doesn't decide where that water goes, gravity will decide for you.
Three drainage moves we plan from day one on a Capitol Hill or Burnaby Heights site:
- Perimeter foundation drains. Standard practice, but on a slope the design has to think about where the perimeter drains discharge. A perimeter drain that empties into the downhill neighbour's yard is not a design.
- French drains and surface swales. Above the building footprint, intercepting upslope water before it reaches the foundation. Often the difference between a dry basement and a damp one in February.
- Roof drainage and downspout strategy. On a steep lot, downspouts dumping water at the foundation are an active liability. Connecting roof drainage to a managed discharge path — to a stormwater connection, a rain garden, or a graded swale — is part of the building design, not the landscape budget.
The grading plan is its own discipline. On a complex Capitol Hill site we'd rather have a civil engineer involved early than improvise drainage in the field.
A hillside Burnaby lot has the most upside of any lot we build on, and the most downside if the design doesn't respect what the lot is doing. The work is in the planning. The construction is the easy part.
— Sanj Aggarwal, CHBA BC Master Residential Builder
The 2026 permit context still applies
A hillside site doesn't get a special exemption from the 2026 changes happening across Burnaby. As of January 1, 2026, building permit applications submitted to the City of Burnaby are processed digitally, and the package needs to include the architectural set, structural set, geotechnical report, energy compliance documentation, and tree bylaw declaration as a coordinated submission.
The energy code applies the same way it does to a flat lot. Per the BC Energy Step Code, every new Part 9 home in Burnaby has to meet at least Step 3 of the Energy Step Code and EL-4 of the Zero Carbon Step Code. On a hillside lot the envelope decisions can be more subtle — the wall assembly on a partially buried daylight basement is different from a fully above-grade wall — but the targets are the same.
What the lot is asking for
The shortest version: a Capitol Hill or Burnaby Heights lot is not a flat lot with a view. It's a site with grade, soil variance, tree retention obligations, drainage demands, and a view that wants a specific architectural response. The owners we see succeed are the ones who treat all of those as design inputs rather than as obstacles.
Walk the lot with a builder. Get the geotechnical report done before the design brief is finalised. Inventory the trees. Talk through the foundation type before the architect produces a structural set. Plan the drainage as part of the design, not the landscape. Specify the envelope to where the energy code is heading, not just where it is today.
If you're considering a custom home on a hillside in Burnaby, Vancouver, North Vancouver, West Vancouver, or anywhere across Greater Vancouver, the early hours of planning are worth weeks at the back end of the build. A hillside lot rewards patience at the start. It punishes shortcuts at the end.
If you're looking at a specific lot, our Burnaby Heights and Capitol Hill area pages cover the neighbourhood context, lot conditions, and how we approach each one.
Related on the Journal
