Most people hear "value engineering" and think cost cutting. They picture a QS crossing items off a specification to bring a project back within budget. That assumption costs projects more than it saves.
So what is value engineering, and why does it matter at the groundworks and enabling works stage of a project?
What is Value Engineering?
Value engineering is a structured approach to improving the value of a project by examining its functions and finding ways to deliver the same or better outcomes for less cost, less programme risk, or both.
It is not about removing items from a specification. It is about questioning whether the current design is the most efficient way to achieve what the project actually needs.
The concept originated in manufacturing during the 1940s and was formalised as a methodology by Lawrence Miles at General Electric. In construction, value engineering has become a standard part of pre-construction planning, particularly on projects where budgets are under pressure or programmes are tight.
In groundworks, earthworks, and enabling works, value engineering often delivers the largest savings because these packages sit at the front of the programme. Changes made at this stage cascade through the entire project. A revised foundation design, a different approach to materials management, or an alternative drainage solution can reduce cost and compress programme without any reduction in the finished product.
Value Engineering vs Cost Cutting
The distinction between value engineering and cost cutting matters. They are not the same thing, and confusing the two leads to poor decisions.
Cost cutting removes scope, specification, or quality to reduce price. The project gets cheaper, but it also gets worse. Value engineering maintains the required function while finding a more efficient way to deliver it. The project gets cheaper and the outcome stays the same or improves.
The table below sets out the key differences:
| Value Engineering | Cost Cutting | |
|---|---|---|
| Objective | Deliver the same or better function for less cost | Reduce cost by removing scope or specification |
| Impact on quality | Maintained or improved | Often reduced |
| Timing | Pre-construction, during design development | Often reactive, after budget overrun |
| Approach | Structured, collaborative, function-led | Top-down, often unilateral |
| Risk | Managed through analysis and testing | Often transfers risk to later stages |
| Example | Revising foundation design from piled to pad based on actual GI data | Removing ground investigation to save upfront cost |
A simple example: on a residential development, cost cutting might mean removing the ground investigation to save upfront fees. Value engineering would use the ground investigation data to revise the foundation design from a worst-case piled solution to a pad foundation that the actual ground conditions can support. The first approach saves money now and creates risk later. The second approach saves more money and reduces risk at the same time.
It is also worth distinguishing value engineering from value management. Value management is a broader strategic process that examines project objectives and priorities at an early stage, often before detailed design has started. Value engineering is the more focused, technical exercise that follows, targeting specific elements of the design and specification. In practice, the two overlap. Value management sets the direction. Value engineering delivers the specific changes. On most groundworks and enabling works packages, the value engineering element is where the measurable savings come from.
When does Value Engineering happen?
Value engineering can happen at any stage of a project, but the earlier it starts, the more impact it has. The relationship between design stage and VE potential is well understood. Changes at feasibility stage cost almost nothing to implement. Changes during construction are expensive, disruptive, and limited in scope.
In practice, the most productive window for value engineering on groundworks and enabling works packages is during RIBA Stage 2 (Concept Design) through to Stage 4 (Technical Design). This is when foundation designs, drainage strategies, earthworks volumes, and site preparation sequences are being finalised.
This is also why early contractor involvement matters. A specialist groundworks contractor brought in at pre-construction stage can identify VE opportunities that a design team working without site delivery experience will miss. The contractor knows what works on the ground, what plant is available, and what alternatives exist for common specifications.
By the time a project reaches site, most of the value engineering opportunity has passed. The design is fixed, materials are ordered, and subcontracts are let. Any changes at this stage are reactive, not strategic.
This is a common frustration on projects where the groundworks contractor is appointed late. By the time they see the design, the foundation scheme is locked, the earthworks strategy is set, and the drainage layout has been coordinated with utilities and highways. The contractor may recognise immediately that a simpler, cheaper solution would work, but the cost of changing the design at that point exceeds the saving. The value engineering window has closed.
The Value Engineering Process: Step by Step
A structured value engineering exercise typically follows six stages. The process can be formal (a dedicated workshop over one or two days) or integrated into pre-construction meetings, but the sequence is the same.
Information gathering. The team reviews the current design, specification, cost plan, and programme. The goal is to understand what each element of the project is supposed to do and what it currently costs.
Function analysis. Each element is assessed in terms of its function. What does it achieve? Is the current specification the only way to achieve it? This is where the discipline of value engineering is sharpest. It forces the team to separate what the project needs from how it is currently designed.
Creative phase. Alternatives are generated. This is not about filtering ideas. It is about generating as many as possible. Could a different foundation type work? Could earthworks volumes be rebalanced to avoid off-site disposal? Could temporary works be shared across phases?
Evaluation. Each alternative is assessed for feasibility, cost, programme impact, risk, and compliance. Some ideas will be impractical. Others will be marginal. A few will deliver meaningful savings.
Development. The best alternatives are developed into proposals with enough detail to support a decision. This includes revised cost estimates, programme implications, design changes required, and any risks that need managing.
Presentation and implementation. Proposals are presented to the client and design team for approval. Approved changes are incorporated into the design and specification before construction begins.
Value Engineering in Groundworks and Earthworks
Groundworks and earthworks packages are where value engineering often has the biggest impact. These packages are cost-significant, programme-critical, and directly influenced by ground conditions that are rarely as bad as worst-case design assumptions suggest.
Common value engineering opportunities at this stage include the following.
Cut and fill optimisation. Rebalancing earthworks volumes to minimise off-site disposal and imported fill. On sites where the cut and fill model is driven by design levels, small adjustments to formation levels or platform heights can eliminate thousands of cubic metres of material movements.
Foundation type revisions. Ground investigation data often supports less conservative foundation solutions than those assumed at feasibility stage. Moving from piled foundations to pad or strip foundations where ground conditions allow can deliver significant cost and programme savings.
Drainage design alternatives. Integrating sustainable drainage systems (SuDS) can reduce traditional below-ground drainage infrastructure. Combined attenuation and drainage solutions reduce excavation volumes and material costs.
Materials reuse. Site-won materials that can be treated and reused as engineered fill or capping layers reduce both disposal costs and the cost of importing virgin aggregates. A Materials Management Plan under the CL:AIRE Definition of Waste Code of Practice provides the regulatory framework.
Temporary works rationalisation. Shared access roads, phased site compound arrangements, and reduced temporary works durations all contribute to lower preliminary costs. A contractor experienced in sequencing multi-phase sites can identify where temporary works overlap and where they can be consolidated.
Project Example: TQA1, University of Bristol Temple Quarter Campus
Churngold first delivered the enabling works package directly for the University of Bristol. We were then appointed by Sir Robert McAlpine under a 12 month PCSA, and went on to win the main groundworks package on the £21M, 191 week project.
The site is complex. It has river frontage, runs alongside major railway lines, and involved contaminated ground and groundwater.
During the PCSA, our team attended design workshops with engineer Buro Happold and concrete supplier Heidelberg. That early involvement shaped the approach before specifications were fixed. We produced the Materials Management Plan with Buro Happold. We also coordinated pour sequences with Heidelberg to support a programme target of 500m³ of concrete per day on the substructure.
Who should be involved?
Value engineering works best when the right people are in the room. The most productive exercises involve a mix of design knowledge, delivery experience, and commercial awareness.
Client or developer to confirm project priorities and approve changes
Design team to assess feasibility and update specifications
Specialist contractor to bring site delivery experience and identify practical alternatives
Cost consultant or QS to quantify savings and assess commercial implications
Relevant specialists (geotechnical, environmental, structural) to validate technical changes
The people who will build the project are often the ones who identify the most practical savings. Contractors deal with the consequences of overdesigned specifications every day. They know which elements of a package are carrying unnecessary cost because they have priced and delivered similar work before.
What to look for in a contractor
Not every contractor approaches value engineering in the same way. When appointing a specialist for groundworks, earthworks, or enabling works, look for the following.
Pre-construction capability. A contractor who can engage at design stage, not just at tender stage, is better positioned to contribute to value engineering.
Track record on comparable projects. Ask for examples of VE savings delivered on similar sites. A contractor who has optimised cut and fill on a brownfield residential scheme will identify opportunities on yours.
Willingness to challenge specifications. The best VE comes from contractors who are comfortable questioning design assumptions constructively, not from those who price whatever they are given.
Transparency on cost and risk. Value engineering should be open-book. If a proposal saves cost, both the saving and any associated risk should be clearly stated.
In an environment where development costs are under increasing pressure, the ability to deliver value engineering at the substructure stage is a genuine differentiator.
Frequently Asked Questions
What is value engineering in construction?
Value engineering is a structured approach to improving the value of a construction project by examining its functions and finding ways to deliver the same or better outcomes for less cost, less programme risk, or both. It is not about reducing quality or cutting corners.
What is the difference between value engineering and cost cutting?
Cost cutting removes scope, specification, or quality to reduce price. Value engineering maintains the required function while finding a more efficient way to deliver it. A cost cut removes something from the project. A value engineering solution replaces it with something that works as well or better for less money or programme time.
When should value engineering start on a construction project?
The most productive window is during RIBA Stages 2 to 4, when foundation designs, drainage strategies, and earthworks volumes are being finalised. Changes at this stage cost very little to implement compared to changes made during construction.
Who should be involved in a value engineering exercise?
The client or developer, design team, specialist contractors with delivery experience, cost consultants, and relevant technical specialists. The people who will build the project often identify the most practical savings.
What are common value engineering opportunities in groundworks?
Common opportunities include optimising cut and fill volumes, revising foundation types based on actual ground conditions, integrating SuDS to reduce below-ground drainage, reusing site-won materials, and rationalising temporary works.
How does value engineering affect project programmes?
Value engineering can shorten programmes as well as reduce cost. Simplifying foundation designs, reducing material movements, and rationalising temporary works all reduce the number of operations on site.
Does value engineering reduce quality?
No. If a proposed change would reduce quality, structural performance, or design life, it is not value engineering. A genuine VE solution delivers the same outcome through a more efficient method, material, or sequence.
What is value management and how does it differ from value engineering?
Value management is a broader strategic process that examines project objectives and priorities at an early stage. Value engineering is a more focused, technical exercise that targets specific elements of the design and specification. In practice, value management sets the direction and value engineering delivers the specific changes.
Talk to our team
If you are planning a development and want to explore how value engineering could reduce cost and programme risk on your groundworks or enabling works package, get in touch. We work with developers, main contractors, and design teams from pre-construction through to delivery.