What Soft Costs Should You Expect Before Building a Custom Home?

When homeowners start budgeting for a custom home, most of the attention goes to construction cost.

That makes sense. It is the biggest number in the project.

But before construction even begins, there is another category of expenses that can have a major impact on the total budget: soft costs.

These are the costs tied to planning, design, approvals, consultants, and pre-construction work. They are not the visible part of the build, but they are essential to getting the project off the ground properly.

If you do not plan for them early, they can catch you off guard.

What Are Soft Costs?

Soft costs are the professional fees, applications, studies, and pre-construction expenses required before and during the early stages of a custom home project.

They are separate from hard construction costs such as framing, concrete, windows, finishes, and labour on site.

In simple terms:

• Hard costs are what it takes to physically build the home
• Soft costs are what it takes to design, plan, coordinate, approve, and prepare the project

Both matter. And both need to be budgeted from the beginning.

Why Soft Costs Matter More Than Most Homeowners Expect

Many homeowners underestimate soft costs because they are spread across different consultants, approvals, and phases of work.

Instead of one large contract, they often show up as separate line items:

• design fees
• engineering fees
• permits
• surveys
• energy modelling
• consultant reports
• legal and financing costs

Individually, each one may feel manageable. Together, they can represent a meaningful part of the total project budget.

That is why soft costs should never be treated as an afterthought.

The Main Soft Costs to Expect Before Building a Custom Home

1. Design fees

This usually includes the architect, residential designer, or design team developing the plans for the home.

Depending on the project, this may also include:

• schematic design
• design development
• permit drawings
• construction drawings
• consultant coordination
• interior detailing or finish selections

The more custom and complex the home is, the more time and coordination the design phase usually requires.

2. Structural engineering

Most custom homes require structural engineering.

This includes the engineering work needed to support the design and prepare the structural drawings required for permits and construction. More complex homes with large spans, cantilevers, retaining conditions, or structural steel will usually involve higher engineering costs.

3. Survey and site information

Before design can move forward properly, the team usually needs accurate information about the lot.

This often includes:

• a legal survey
• topographic survey
• site measurements
• elevations
• property line and setback information

Without that information, the design team may be working from assumptions, which can create expensive problems later.

4. Geotechnical and site-specific reports

Some sites require additional technical review before construction begins.

Depending on the property, this may include:

• geotechnical investigations
• soil testing
• excavation recommendations
• retaining wall input
• drainage or servicing review
• arborist reports
• environmental or site-specific consultant input

These costs vary widely depending on the property, but they can be important, especially on sloped or more challenging lots.

5. Permit and application fees

Every municipality has its own fees and approval requirements.

These may include:

• building permit fees
• utility or servicing charges
• application fees
• deposits
• inspection-related costs
• municipal review fees

These numbers can vary significantly depending on location, lot conditions, and project scope. That is one reason it helps to understand local City of Vancouver home and property development requirements, or the rules in the municipality where you plan to build.

6. Energy advisor and Step Code requirements

For new custom homes in BC, energy performance is no longer optional.

Projects now often require:

• energy modelling
• Energy Advisor involvement
• blower door testing
• documentation tied to Step Code and Zero Carbon compliance

This is a growing part of pre-construction planning, and it should be included in the soft cost budget from the beginning. We talk more about this in What Homeowners Need to Know About Step Code Before Building a Custom Home in BC.

7. Interior design and specifications

Not every homeowner hires an interior designer, but many custom home projects benefit from it.

Interior design fees may include:

• finish selections
• cabinetry design
• millwork detailing
• lighting and plumbing fixture coordination
• interior elevations
• material specifications

This part of the process can have a major effect on both budget and timing, especially if the home has a high level of detail.

8. Legal, financing, and insurance-related costs

There may also be soft costs related to:

• legal review
• lender requirements
• builder's risk insurance
• appraisal or financing setup
• title review
• accounting or tax advice, where applicable

These are not always the first costs homeowners think about, but they still form part of the total picture.

How Much Should You Expect Soft Costs to Be?

There is no one number that applies to every project.

Soft costs vary depending on:

• the size of the home
• the complexity of the design
• the municipality
• the lot conditions
• the number of consultants involved
• the level of detail required before permits and construction

What matters most is not trying to guess a universal percentage. What matters is building a realistic pre-construction budget based on the actual property and the actual project.

That is one reason early budgeting matters so much.

Why Soft Costs Feel Smaller Than They Are

Soft costs often feel smaller because they arrive in stages.

You may pay for a survey first. Then design work. Then engineering. Then energy modelling. Then permit fees. Then consultant coordination.

Because they do not usually show up as one large number at once, it is easy to underestimate how much they add up to.

That is why homeowners can feel surprised later, even when every individual line item seemed reasonable on its own.

Why Early Builder Involvement Helps

Soft costs are one of the clearest reasons to bring the builder into the conversation early.

At Venture Pacific, we help clients look at the whole project before construction begins. That includes not only what the home may cost to build, but also the consultant work, reports, approvals, and planning expenses needed to get there.

When the builder is involved early, the project usually has:

• a more realistic budget
• better alignment between design and cost
• fewer surprises in pre-construction
• a clearer path from lot to permit to construction

This is also why selecting your builder early in the custom home process can make such a meaningful difference.

Soft Costs Are Part of the Real Budget

A custom home budget is not just the construction contract.

It also includes everything required to make the project possible before the build begins.

When homeowners understand soft costs early, they make better decisions. They can plan more clearly, avoid budget surprises, and move into design with a more realistic view of what the full project will require.

If you also want to understand the larger construction side of the budget, it may help to read our guide on custom home cost in Vancouver.

Ready to Plan Your Custom Home Budget More Clearly?

If you are starting to think about a custom home and want a better understanding of both construction cost and soft costs before moving too far ahead, we would be happy to help.

If you want to explore the next steps, book a free consultation with our team.