A convincing picture can make a proposed home feel settled before the important decisions have been made. You can imagine breakfast beside the glazing, guests around the dining table and a quiet evening on the terrace. That is useful. Trouble starts when the picture is treated as evidence of dimensions, privacy or an included finish that nobody has actually checked.

For a Spanish building project, review images alongside the documents that define the work. If you are buying a home off plan, ask the developer for the relevant sales information. If you are commissioning the design yourself, agree what your architect needs you to approve at this stage.

Start with one decision, not a general reaction

Instead of responding “we love it”, identify the features that would make you change your mind if they were different. Perhaps the living room must fit existing furniture, the bedroom needs afternoon shade or the terrace must feel private. Write those requirements beside the image. This turns an aesthetic discussion into questions your design team can answer.

Ask whether the view is an early concept or represents an agreed drawing revision. Keep the image date, drawing number and finish schedule together. A later floor plan may have changed the window or stair without the visual being regenerated. Our explanation of basic and execution projects in Spain helps you distinguish the level of design definition. A polished image cannot replace the technical project documentation described by the CTE.

Check whether the room works with real objects

Use dimensions from your own furniture or an identified product, rather than assuming the attractive items shown are a standard size. Put the bed, desk or table onto the measured plan and consider use as well as fit. Drawers open, chairs move backwards and people carry laundry past furniture. These movements can change a comfortable-looking room into a narrow route.

A useful rehearsal is to mark a proposed arrangement on your existing floor with removable tape. Treat it as a personal comfort test, not proof of compliance with building rules. For an existing property, the guide to making a checked phone-based floor plan explains how to organise measurements. Never scale an entire room from the perspective image alone.

QuestionEvidence to request
Will our dining arrangement fit?Furniture dimensions and a plan showing occupied chairs
Can we open the wardrobe?Door operation alongside bed and bedroom entrance
Is the garden route comfortable?Levels and threshold detail, not only the exterior view

Separate beautiful lighting from a daylight assessment

Ask which direction the windows face, what time the image represents and which surrounding obstructions were included. A rendering can communicate an intended atmosphere without modelling the hours you will actually use the room. Your architect should explain the relevant shading and daylight decisions using appropriate plans or studies, particularly where large areas of glazing affect comfort.

Views deserve their own check. An empty neighbouring plot, a temporary fence or a newly planted tree may look different later. Identify which parts of the scene are inside your control and which rely on neighbouring land or future growth. For an overseas buyer who has visited only once, photographs from the actual site and a separate location visit can reveal questions the visual never set out to answer.

Trace important finishes to the priced specification

Choose a handful of visually important elements and ask where they appear in the specification and quotation. A slender window frame, flush door or continuous stone surface involves more than a colour choice. Product dimensions, supporting construction, joints and installation details all matter. Mark an undecided item as undecided, with an allowance and a decision date.

For example, a timber-lined ceiling shown in the picture may be absent from a builder's painting allowance. This is an illustrative mismatch, not a claim about typical quotations. Resolve it by comparing fully described alternatives and recording which one was selected. Use our turnkey building contract checklist to consider substitutions and changes, so a later product replacement does not quietly alter an important part of the design.

Ask where the everyday equipment goes

Walk through the proposed home carrying imaginary shopping, wet coats and a full laundry basket. Where do they stop? Then ask about ventilation grilles, access panels, drains and outdoor equipment. An image may omit these for clarity, but the project still needs workable locations and maintenance access. A concealed service is not necessarily an unresolved one; ask where the solution is documented.

Pay particular attention to intersections: glazing beside a kitchen unit, a downpipe next to a balcony, or a plant enclosure near the place you intend to sit. Request clarification before making an irreversible selection. Keep the issue proportionate. You do not need every technical component rendered, but you do need confidence that somebody has coordinated it with the space you are approving.

Record approval in a form you can revisit

Use a short decision log containing the issue, response, revised document and approval date. Keep unresolved questions separate from accepted items. Spain's Royal Decree 515/1989 addresses housing advertising and information in professional consumer transactions within its scope, so retaining the sales material and written clarifications is sensible. Seek advice on any material discrepancy rather than assuming a disclaimer or an image automatically settles the legal position.

Review the financial effect before accepting a change. The project budget calculator can help you reorganise allowances, provided you identify estimates as estimates. Keep the same documentary habit at handover; our new-build defects and warranties guide explains how to record concerns. To discuss the next step, tell us about your project and the design decisions you still need to resolve.

Sources and further reading

Sources checked on 22 September 2026. Your property documents and local requirements determine how the guidance applies to your project.