A conservatory provides valuable extra living space and can significantly increase your home's resale value when you decide to sell.
Building a conservatory counts as a home extension, so it must comply with local planning rules. Since the Alur law took effect on April 14, 2014, you no longer need town hall approval for land use coefficients or COS. The process depends on the conservatory's floor area.
For areas up to 40 square meters, a prior declaration of works is sufficient. However, if your property is in a subdivision, an architect's approval is required regardless of size to ensure compliance with planning regulations. Expect a 30-day wait, or 2 months for sites with protected status.
Over 40 square meters? You'll need a full building permit from the town hall, typically processed in two months. Submit four copies including a site plan, floor plan, sectional plans for land and structure, project description, facade and roof plans, and a photo showing the site in its surroundings.
For conservatories exceeding 170 square meters, an architect must be involved—that's a substantial addition!
First, choose the best location—ideally one with maximum sunlight exposure, suited to your property's layout. Then, select your material.
Four main options: PVC is the budget-friendly choice and most popular for its affordability. Aluminum offers flexibility with endless shapes, designs, and colors, though it's less insulating. Wood brings natural warmth and authenticity, excelling in thermal and sound insulation while supporting heavy roofs like slate or tiles. Opt for durable hardwoods like oak, beech, maple, or cherry to withstand weather extremes, but expect a premium price.
Finally, wrought iron delivers unmatched elegance and luxury aesthetics. As the priciest option, it's far more expensive than wood or aluminum but worth it for its sophisticated appeal.
