---
title: "CTE DB-HE compliance and energy certificates | Roca"
description: "CTE DB-HE, HE 0, HE 1 and HE 4 compliance and energy performance certificates coordinated with architectural projects in Spain."
canonical: "https://roca.ing/en-gb/servicios/green-buildings/"
language: "en"
---

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3.  CTE compliance and energy certificates

Energy engineering for architects

# CTE compliance and energy certification integrated into the design

We resolve DB-HE compliance alongside the building fabric and services, from design stage through to the completed building.

[Review CTE and energy for my project](https://roca.ing/en-gb/contacto/?tipo=green-building&disciplina=cte)

![Ilustración técnica de estrategias energéticas en una vivienda](https://roca.ing/_astro/energy-technical-drawing.DvSRy8nE_1QKck.webp)

Esquema técnico · Energía

We support architecture practices with the applicable CTE DB-HE checks and energy performance certificates, keeping the calculations connected to the design decisions that produce the result.

First conversation

## We help define the next step

With the objective, location, stage and available information, we can advise you and prepare a clear scope.

01

## What we resolve

-   Check HE 0 and HE 1 from the first decisions on fabric, use and building services.
-   Coordinate HE 4 and the other applicable energy requirements without introducing solutions that conflict with the architecture.
-   Prepare project, completed-building or existing-building energy certification where required.

02

## What we deliver

-   HE 0 and HE 1 calculations and compliance documentation.
-   HE 4 and other applicable DB-HE section checks.
-   Coordinated criteria for fabric, HVAC, lighting, renewables and EV charging.
-   Project, completed-building or existing-building energy performance certificate, according to the appointment.

03

## What we need to start

-   Model or drawings, construction build-ups, use and intervention scope.
-   Available HVAC, lighting and renewable-generation data for each stage.

How we work

## A clear process from first information to delivery

1.  01
    
    Review use, intervention scope, geometry, fabric and proposed services.
    
2.  02
    
    Check the applicable requirements and coordinate adjustments with the architect.
    
3.  03
    
    Prepare calculations, compliance documents and certification for the appointed stage.
    

Applications

## Projects and teams this service can support

[01For professionals↗

### Architects

We can join from feasibility and concept design through detailed design, quantities, legalisation and construction support. Our proposal identifies disciplines, milestones, formats and responsibilities.](https://roca.ing/en-gb/para/arquitectos/)[02For professionals↗

### Developers

We provide engineering where an early decision can prevent costly change and where documentation must keep pace with the completed asset.](https://roca.ing/en-gb/para/promotoras/)[03Project type↗

### Hotels

Bedrooms, common areas, kitchens, pools and technical zones need different criteria and careful coordination with operation and construction phases.](https://roca.ing/en-gb/sectores/hoteles/)[04Project type↗

### Homes and villas

HVAC, hot-water production, electricity and photovoltaic decisions affect space, cost, comfort and maintenance in residential projects.](https://roca.ing/en-gb/sectores/viviendas/)[05Project type↗

### Industrial buildings

An industrial building is not defined by structure alone. Use, process, services, fire safety, power and future expansion must be coordinated from the outset.](https://roca.ing/en-gb/sectores/naves-industriales/)

[View all sectors ↗](https://roca.ing/en-gb/sectores/)

You may also need

## Services that complete the project

[01↗

### Air conditioning and HVAC

The project coordinates thermal demand, ventilation, indoor air quality, generation and distribution with architecture, electricity and controls.](https://roca.ing/en-gb/servicios/climatizacion/)[02↗

### Electrical installations

The electrical solution starts from expected loads, distribution, protection and coordination with other services.](https://roca.ing/en-gb/servicios/instalaciones-electricas/)[03↗

### Photovoltaics

We size and integrate photovoltaic installations from consumption, available area and the building's electrical and construction conditions.](https://roca.ing/en-gb/servicios/fotovoltaica/)

FAQ

## Preguntas frecuentes

Which CTE DB-HE sections can you cover?

We work on HE 0, HE 1 and HE 4 and coordinate any other applicable sections —HE 2, HE 3, HE 5 or HE 6— according to use, intervention type and project scope. We confirm the requirements before calculations begin.

Do you prepare energy performance certificates?

Yes. We prepare project, completed-building and existing-building certificates where required, using the information and checks applicable to each case. Submission or registration is defined in our proposal according to the autonomous community and agreed scope.

Can you work as part of an architecture practice's team?

Yes. We receive the model or drawings at the available stage, return traceable criteria and results, and coordinate changes so energy compliance fits the rest of the project.

Siguiente paso

## CTE compliance and energy certification integrated into the design

[Review CTE and energy for my project](https://roca.ing/en-gb/contacto/?tipo=green-building&disciplina=cte)