Start with how and when the house is used
Tell your designers whether the home will be occupied all year, visited for holidays or left empty for extended periods. Describe working hours, sleeping preferences and the rooms used most often. These details help frame discussions about comfort, control and operation without assuming every home needs the same system.
Think about winter mornings as well as summer afternoons. Ask how the design responds to orientation and exposure, and what comfort expectations are realistic for the proposed approach. The technical team should explain the relationship between the building and its services rather than treating the equipment as a separate purchase.
Coordinate shading, glazing and the envelope
Large windows can support views and a strong connection with the terrace, but their design needs to be considered alongside shading and the rest of the envelope. Ask the team to explain the proposed glazing, external shading and junction details. A change to one element can affect the assumptions behind another.
Discuss how insulation and construction details are coordinated around openings, roofs and transitions. The appointed professionals should define the technical solution and required performance. During construction, ask how the specified details will be communicated and checked. A product label alone does not describe the quality of its installation.
Plan ventilation and equipment together
Ventilation, cooling, heating and hot water need space, routes and maintenance access. Ask where units, ducts, pipes and controls will be located and how they fit with ceilings and furniture. Identify any equipment that could affect noise or the use of outdoor spaces. These are design questions that are easier to resolve before finishes are selected.
Keep the controls understandable. Discuss whether individual room control, remote monitoring or simpler operation suits your household. Ask for a coordinated proposal and the relevant professional calculations rather than selecting equipment only by comparing catalogue capacities.
Discuss water, landscape and upkeep
Outdoor planning can influence maintenance routines as well as the appearance of the home. Ask the project team to consider planting, irrigation, surface drainage and access to pool equipment together. Record the care requirements of the materials and systems you select, particularly when the property will be unoccupied for part of the year.
Solar equipment or other optional systems should be considered in the context of the design and use of the home. Ask the appointed specialists to assess suitability, integration and operation. Avoid assuming a particular saving without a project-specific assessment and clearly stated assumptions.
Use official references and verify the handover
The official Código Técnico de la Edificación site publishes the building-code documents, including DB-HE on energy saving. Ask your designers to explain the applicable requirements and how the proposal addresses them. This guide introduces useful questions; it does not replace the technical design or confirm compliance for an individual home.
At handover, request the relevant commissioning information, manuals and demonstrations for the installed systems. Ask how filters, equipment and controls are maintained and which tasks need specialist attention. A well-documented home is easier to operate, especially when you are learning several new systems at once.
Related questions: Villa construction · Pools & outdoors · Build a home
Official reference: CTE DB-HE: energy-saving documents. Ask your appointed technical team to explain applicability to your project.