Value retention in the built environment
Not automatically replacing or expanding, but first using what already exists: the Refuse strategy at the top of the R-ladder. The report translates value retention into 10 opportunity cards for market parties and 3 programme lines for governments, with concrete opportunities to lower costs, save materials and CO₂, and develop new business models.
Use what already exists first
Construction and renovation practice is often geared towards adding and replacing. Value retention asks a different question: which function is really needed, and how can it be delivered with as little new material as possible. Steering on use, performance and lifespan makes total value over the lifespan the guiding principle, not only the initial investment cost.
About this project
- Prepared by
- New Economy, built environment, circular economy and construction sector.
- The question
- How does value retention deliver cost and material savings in the built environment, and which business models fit this.
- The core
- Not automatically replacing or expanding, but first using what already exists. The Refuse strategy at the top of the R-ladder prevents material demand at the source.
- The result
- 10 opportunity cards for market parties and 3 programme lines for governments, with gains in money, materials and CO₂.
In short
New Economy researched how value retention in the built environment saves costs and materials. The built environment is under pressure: the renovation and sustainability task is growing, while materials, labour, capital, grid capacity and delivery times become scarcer. Buildings, installations and infrastructure hold a great deal of value that in practice is not fully used.
The report translates value retention into practical courses of action: 10 opportunity cards for private and market parties, and 3 programme lines for governments, sector organisations, knowledge institutions and sector-wide parties.
Refuse sits at the top of the R-ladder. The greatest structural impact comes from preventing material demand at the source, not from processing waste better afterwards.
Why value retention matters now
The reflex is often to add more, install larger or replace sooner, and that is exactly where value gets lost. Three structural forms of value loss recur again and again.
Oversizing
Systems designed for peak load and generous margins lead to extra capacity, higher investment costs and unnecessary material use.
Premature replacement
Installations and building components are replaced on fixed cycles instead of technical necessity. Residual value is lost.
Unused capacity
Buildings and systems are set up for maximum demand but only partially used: high costs, low utilisation.
From replacement logic to value retention
Current practice translates a heat demand into an installation, a comfort problem into extra technology, and an outdated component into full replacement. Value retention looks first at the function and steers on use, performance and lifespan, including management, maintenance, residual value, material impact, comfort and flexibility.
Within the R-ladder, Refuse, Rethink and Reduce sit at the top. Refuse does not mean doing nothing, but critically examining whether a product, installation, extension or replacement is really needed, and then redesigning how the same value can be delivered with less material. In the built environment, that can look like this:
- sizing an installation down after demand reduction
- replacing glass without replacing the whole window frame
- tuning existing installations better
- organising comfort per zone instead of the whole home
- making better use of shared facilities
- letting outdoor space, shade, greenery, soil and water contribute
Function first, then technology. Steer on needs rather than products, and calculate with total value over the lifespan rather than only acquisition cost.
10 opportunity cards for earning with less
Each card combines a business model with value gains in money, materials and CO₂.
| Opportunity card | Value gain |
|---|---|
| Actual-use renovation | Sizing down after demand reduction saves CAPEX, space and maintenance. |
| Shading shell | Outdoor shading, trees, pergolas or seasonal shade keep homes cooler and avoid extra cooling installations. |
| Replace the glass, not the frame | More comfort and insulation without replacing the entire window frame. |
| Climate core in the home | Making one usage zone truly comfortable avoids unnecessarily conditioning the whole home. |
| The fine-tuner | Better tuning of existing installations lowers energy use, complaints and premature replacement. |
| Solar chimney ventilation | Natural draught and night ventilation provide fresh air with less mechanical cooling. |
| Collective neighbourhood cooling | Heat adaptation, liveability and lower cooling demand in one area-based approach. |
| Less floor area, more shared | Compact homes and shared facilities lower material use and housing costs. |
| Demountable fit-out | Preserving residual value at turnover lowers waste, labour and replacement costs. |
| Let the outdoors help | Shade, greenery, soil, water and wind lower heat, peak run-off and indoor load. |
3 programme lines for governments
For governments, sector organisations, knowledge institutions, regional development agencies and sector-wide parties, the report shows how value retention can be structurally placed on the agenda and scaled up, along three tracks.
Policy and agenda-setting
Embedding value retention in policy, frameworks and client roles, so that retention and optimisation become the starting point.
Pilots and programmes
Testing opportunities in concrete pilots and programmes, with measurable gains in cost, materials and CO₂.
Collaboration and scaling
Sharing knowledge, business models and experience between parties to scale proven approaches sector-wide.
Who it’s for and how to start
Relevant for anyone working on sustainability, renovation, real estate development, circularity or material savings in the built environment: housing associations, owners’ associations and their managers, municipalities, provinces, project developers, property owners and investors, installers and renovation companies, designers, advisors and engineers, sector organisations and knowledge institutions.
Key figures and lessons
The key figures and insights from the analysis of value retention and urban mining. Each insight refers to the underlying analysis.
Urban mining from construction and demolition residual streams in the Amsterdam Metropolitan Area.
Urban mining of e-waste in the Amsterdam Metropolitan Area, alongside €688 million from construction and demolition.
Available annually from construction and demolition in the Amsterdam Metropolitan Area, equivalent to around 1,200 homes.
Optimising before replacing saves both cost and materials; Refuse sits at the top of the R-ladder.
Frequently asked questions
Value retention means that existing buildings, installations, materials and infrastructure remain functionally, economically and ecologically valuable for as long as possible. The focus is on retention, optimisation, lifespan extension and smarter use before replacement or expansion.
Refuse is one of the highest circular strategies on the R-ladder. It is about preventing unnecessary material demand: instead of recycling afterwards, the question is examined upfront whether a product, installation or intervention is really needed.
By using fewer new materials, sizing installations down, making better use of existing systems, postponing replacement and organising maintenance more smartly. This lowers investment costs, operating costs and failure costs.
The opportunity cards are intended for market parties such as housing associations, owners’ associations, developers, installers, advisors, homeowners and entrepreneurs. The programme lines are intended for governments, sector organisations, regional development agencies and knowledge institutions.
The energy transition requires changes to buildings and installations, and those changes themselves also require materials, labour, grid capacity and capital. Value retention helps achieve the same comfort, energy and climate goals with less material use and lower system pressure.
Related reading
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