Do you really need a permit to change your windows in Spain? Usually yes — but whether it's a quick declaración responsable or a full licencia de obra menor depends on your town hall, your community and whether the façade changes. This step-by-step guide covers permits, community approval, protected zones, costs, timelines and the real consequences of skipping the paperwork.
In a Spanish apartment block, your windows are not entirely yours. The Ley de Propiedad Horizontal divides the building into private and common elements, and the façade belongs to everyone — so changing how your windows look can need a community vote. This guide explains elementos comunes vs privativos, façade uniformity, the majorities you need, balcony enclosures, and how to avoid a dispute.
Old, draughty windows in a protected building are a frustration — but you can't simply swap them for modern PVC. Catalogued buildings, BIC monuments and conjuntos históricos come with heritage rules on profiles, colours, divisions and materials. This guide explains what you can and can't change, how heritage approval works, and the special glazing that improves comfort while keeping the historic look.
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