Standards · Energy retrofit of public buildings
Roof, façade and windows are the same task everywhere.
Every municipality plans that retrofit on its own building.

around 3,700 Envelope retrofits a year
Municipalities retrofitting their buildings describe together what roof and façade must deliver. Requirements, tender documents and financing are then ready to go. Because many order the same thing, solution providers prefabricate in series, faster and cheaper than on a single building.
Behind this project is .GUT. We bring municipalities and solution providers together, so that what holds every municipality up on its own gets solved. More about our system here.
- Pooling demand
- 2 Standards workshop
- 3 Publication
- 4 Framework agreement
- 5 Delivery
We are pooling demand.
As soon as enough municipalities and solution providers register interest, we schedule the standards workshop.
What the standards workshop works on.
Five topics that municipalities and solution providers work on in the standards workshop.
- 1Surveying the building stock Which buildings, what condition, what priority.
- 2Prefabrication of elements How much of the façade can be built in the factory.
- 3Building while in use How to retrofit an occupied building without moving out.
- 4Guaranteed savings Who is liable for consumption after the retrofit.
- 5Procurement and financing Joint framework agreement, grants, contracting models.
Who is at the table.
- Municipalities Towns, municipalities and municipal housing companies with their own building stock.
- Solution providers Companies in façade, roofing, window construction and prefabrication that deliver in series.
- Experts Energy consulting, funding law, building physics and heritage protection.
Still wanted: Municipalities, solution providers and experts for all five topics.
What comes out of it.
- Solution-neutral All services described in modules, no products prescribed.
- Tender-ready Legally reviewed, through to call-off.
- Financeable Grants planned in, private capital where it fits.
- Fully planned Every step prepared through to handover.
- Measurable Metrics from day one.
Frequently asked questions.
Do I commit to anything if my municipality joins?
What does it cost, and who pays .GUT?
Solution providers sit at the table in the workshop. Is that a problem for procurement?
Who is the contracting authority for the joint framework agreement?
Does our solution have to match the standard exactly?
Prefer to talk? 20 minutes, online.
Book a callHow to join.
Your municipality is planning this too?
- 1Tell us what you are planning Two minutes online. No documents, no obligation.
- 2Come to the standards workshop With municipalities planning the same. Free to attend, a few sessions.
- 3Procure under the standard From the joint framework agreement, without a procedure of your own. Whether at all is your municipality's decision.
Your solution fits this project?
- 1Tell us what you deliver Two minutes online. No contract, no costs.
- 2Positioning Once the workshop is in sight, we place your solution in a conversation: demand, topics, readiness. Then you know your seat and the terms.
- 3Standards workshop and framework agreement With the municipalities you define what the solution must do. Then you bid once and deliver to many.
Who is behind .GUT.
Marc Bernath
Founder, .GUT Future Cities.GUT is a privately run initiative based in Berlin. We bring together municipalities that plan the same and, with them and with solution providers, develop shared standards and joint procurement.
.GUT is financed from the savings that standardisation and pooled orders bring on both sides. Participation is free for municipalities. Solution providers pay for the workshop and a share of the orders that result from it. How the system works