Why the “Three Bid Rule” Doesn’t Always Work for Custom Homes

For many homeowners beginning a construction project, the advice is familiar:“Make sure you get three bids.” On the surface, this sounds like a practical way to compare contractors and protect your investment. In many industries, comparing multiple proposals helps clarify value and pricing.

But in custom residential construction, particularly for high-end homes and complex renovations, the three-bid rule often creates more confusion than clarity.

The reality is that construction proposals are rarely apples-to-apples. Understanding why can help homeowners make more informed decisions as they begin the building process.

Custom Homes Are Not Commodities

Unlike purchasing a standard product, building a custom home involves hundreds of decisions, dozens of trade partners, and significant coordination and management.

Every builder approaches a project differently.

Differences may include:

• Project management structure

• Level of site supervision

• Quality and consistency of subcontractors

• Construction methods and detailing

• Communication systems and scheduling processes

Two proposals might appear similar on paper, yet represent very different approaches to building the same home.

The result is that price alone rarely reflects the full scope of what is being offered.

Pricing Only Works When the Scope Is Identical

For bids to be truly comparable, every contractor would need to price the exact same scope, specifications, and assumptions.

In practice, this rarely happens.

For example, one proposal may include:

• Full-time site supervision

• Detailed pre-construction planning

• Highly specialized subcontractors

• Higher allowances for finish materials

Another proposal may rely on different assumptions or exclude certain elements entirely.

When this happens, the numbers can appear significantly different even though the proposals are not pricing the same project.

The Lowest Bid Often Tells an Incomplete Story

When homeowners review multiple bids, the natural instinct is to focus on the lowest number.

However, the lowest proposal does not always represent the most complete one.

Sometimes items are deferred into:

• Allowances

• Future upgrades

• Change orders during construction

While allowances and adjustments are normal in construction, large discrepancies between bids often indicate that the scope of work is not fully aligned across proposals.

This can lead to unexpected costs or project adjustments once construction begins.

Collaboration Often Produces Better Projects

Many successful custom homes are built through early collaboration between the architect, builder, and homeowner, rather than through a competitive bidding process.

When a builder is involved earlier in the process, they can help:

• Align the design with the project budget

• Identify potential cost drivers before construction

• Provide insight into construction methods and sequencing

• Avoid unnecessary redesign or delays

This collaborative approach allows the team to focus on problem-solving and planning, rather than simply submitting numbers.

How Many Architect-Led Projects Begin

In architect-led projects, it is common for the architect and homeowner to select a builder based on experience, communication style, and project fit.

Rather than inviting multiple bids, the builder may be brought in during the design phase to provide pre-construction guidance and budgeting support.

This process often leads to smoother construction, clearer expectations, and a more cohesive project team.

Choosing the Right Builder in Wayne

For homeowners considering a custom home or significant renovation, selecting a builder involves more than comparing proposals.

Important considerations often include:

• Experience with similar projects

• Reputation within the design community

• Communication and transparency

• Project management structure

• Long-term craftsmanship and quality

Building a home is a significant undertaking, and the builder becomes a central partner throughout the process.

The Cullen Approach

At Cullen Construction, we view every project as a collaborative partnership between the homeowner, architect, designer, and builder.

By working together early and maintaining clear communication throughout construction, the goal is always the same: to build homes with lasting quality, thoughtful craftsmanship, and a process that feels as strong as the finished result.

Schedule an appointment with us to learn how we can make your custom home a reality with transparent bidding and an expert team.