Why Good Design Always Costs Less: The Whole-Life Value Argument

The case for investing in design quality, and what it actually means for your building over twenty, thirty, and fifty years.

There is a persistent idea in construction that good design is a luxury. That it adds cost. That if budgets are tight, design quality is the first thing to compromise.

We believe the opposite is true. In our experience, good design always costs less in the long run. Not as a slogan, but as a measurable, provable reality when you look at what a building actually costs over its lifetime rather than just what it costs to build.

The Problem With Thinking Only About Construction Cost

When most people talk about the cost of a building, they mean the construction cost: the price on the tender, the figure in the contract. That number is important, but it represents only a fraction of what the building will cost over its useful life.

Research consistently shows that the construction cost of a commercial or public building accounts for somewhere between 20% and 40% of its total cost over a 30-year period. The rest is operational: heating, cooling, lighting, cleaning, maintenance, repairs, and eventual refurbishment. For every euro spent on construction, between two and five euro will be spent operating and maintaining the building over its lifetime.

This means that design decisions made in the first few months of a project have financial consequences that play out over decades. A building that is cheap to construct but expensive to heat, difficult to maintain, or inflexible to changing needs is not a saving. It is a cost deferred.

What "Good Design" Actually Means in Financial Terms

When we talk about good design in this context, we are not talking about aesthetics alone. We mean design that is technically resolved, carefully considered, and optimised for long-term performance. In practice, this translates into several things.

Lower Energy Costs

A fabric-first approach, prioritising high levels of insulation and airtightness from the outset, dramatically reduces the amount of energy a building needs to operate. Under Ireland's Nearly Zero Energy Building (nZEB) regulations, all new buildings must now achieve high levels of thermal performance. But there is a meaningful difference between a building that just meets the minimum standard and one that is genuinely designed around energy efficiency.

The difference in construction cost between a competent nZEB-compliant building and one designed with a more ambitious energy strategy is typically modest, often in the range of 2-8% of construction cost. But the operational savings compound year after year. A well-designed public building can save thousands of euro annually on heating and electricity compared to one that merely ticks the regulatory boxes. Over thirty years, that modest additional investment in design quality pays for itself many times over.

Reduced Maintenance and Repair

Material selection is one of the areas where design quality has the most direct impact on long-term cost. Choosing durable, appropriate materials that are suited to their context and exposure, rather than defaulting to the cheapest option that meets the specification, significantly reduces maintenance frequency and cost.

Equally important is designing for maintainability. Can the building's mechanical systems be accessed and serviced without disrupting occupants? Are external finishes in exposed locations robust enough to weather the Irish climate without frequent intervention? Are drainage, ventilation, and waterproofing details resolved properly, or will they become the source of callbacks and repairs within a few years?

These questions are answered at the design stage, not on site. An architect who invests time in getting the technical details right delivers a building that costs less to look after for its entire life.

Fewer Variations During Construction

One of the most common sources of cost overrun in construction is variations: changes to the design or specification during the build, typically because something was not properly resolved in the drawings, or because a coordination issue between trades was not identified until it was too late.

Rigorous technical design, where drawings and specifications are thorough, coordinated, and buildable, is the most effective way to minimise these costly surprises. A well-documented project attracts more competitive tender prices (because contractors can price with confidence) and delivers fewer claims during construction (because there is less ambiguity to exploit).

The cost of thorough design documentation is a fraction of the cost of resolving problems on site. Every euro invested in getting Stage 3 right saves multiples during Stage 4.

Flexibility and Adaptability

Buildings outlast their original purpose. Schools change their teaching methods. Offices reorganise. Community centres adapt to serve new needs. A building designed with some consideration for future flexibility, through sensible structural grids, accessible service routes, and adaptable internal layouts, avoids the need for expensive and disruptive retrofitting when requirements change.

This does not mean over-specifying or building in features that may never be used. It means making intelligent choices about structure and servicing that keep future options open at minimal additional cost. The best time to design in flexibility is at the beginning, when it costs almost nothing. Retrofitting it later costs a great deal.

The Architect's Fee in Context

Architectural fees for a full service on a new-build project in Ireland typically range from 5-12% of the construction cost, depending on the scale and complexity of the work. For a public building, this might represent 7-10%.

Set against the total cost of the building over its lifetime, the architect's fee is a very small percentage, often less than 2-3% of the whole-life cost. Yet it is during the design stages, when the architect's work is concentrated, that the decisions with the greatest long-term financial impact are made.

Reducing the design fee to save money is one of the most counterproductive decisions a client can make. A lower fee means less time for design development, less coordination, less technical resolution, and less attention to the details that determine how the building performs over decades. The savings on the fee are typically dwarfed by the additional costs that emerge during construction and operation.

The RIAI has consistently argued that current procurement practice in Ireland too often focuses on minimising the cost of design and construction rather than achieving genuine value for money. Their position, which we share, is that design quality and long-term value should take priority over short-term cost reduction.

A Real-World Example

Consider two approaches to the same brief: a new community building with a construction budget of around one million euro.

Approach A minimises design fees, rushes through the technical stages, specifies the cheapest compliant materials, and produces a building that meets minimum regulatory standards. Construction comes in on budget at one million euro.

Approach B invests properly in design, achieves a more ambitious energy performance, specifies durable and maintainable materials, and produces thoroughly coordinated construction documents. Construction comes in at one million and fifty thousand euro, a 5% premium.

Over thirty years, Approach A costs an additional fifteen to twenty thousand euro in energy per decade compared to Approach B. It requires two significant maintenance interventions (roof, external finishes) that Approach B avoids through better material choices. Its mechanical systems need replacement five years sooner due to less efficient design. And when the building needs to adapt to new requirements after fifteen years, the inflexible original layout means a costly internal reconfiguration.

The total thirty-year cost of Approach A is substantially higher. The building that was "cheaper" to build becomes the more expensive building to own.

What This Means For Clients

If you are commissioning a building, whether as a public body, a developer, or a private client, the most important financial decision you will make is not choosing the lowest tender. It is choosing the right design team and giving them the time and resources to do their work properly.

Good design is not an indulgence. It is the most reliable way to control the total cost of your building over its lifetime. It reduces energy bills. It reduces maintenance. It reduces construction risk. It creates spaces that remain fit for purpose as needs evolve. And it delivers buildings that people genuinely enjoy using, which, while harder to put a number on, has real value for any organisation.

We often say that good design always costs less. We mean it literally, not as aspiration but as a consistent, observable outcome of investing in quality at the right stage of the process.

If you are weighing up how much to invest in design, the question to ask is not "what does the architect cost?" but "what will this building cost me over the next thirty years, and how much of that can good design reduce?"

The answer, in our experience, is always significant.