Renovating a house on the Costa da Morte: Costs, grants and practical advice

How Much Does It Really Cost to Renovate on the Costa da Morte?

Renovating a property on the Costa da Morte is one of the smartest investment decisions you can make. Properties in need of renovation start from just €60,000, and a well-executed renovation can multiply the property's value. But what is the real cost?

The average renovation cost ranges from €600 to €1,200 per square meter, depending on the property's condition, material quality, and complexity. A full renovation of a 120m² stone house typically costs between €72,000 and €144,000.

Cost Breakdown by Renovation Level

Basic Renovation (€600-750/m²)

• Complete electrical and plumbing installations.
• Standard flooring and tiling.
• Basic fitted kitchen and complete bathroom.
• Interior and exterior painting.

Quality Renovation (€750-1,000/m²)

• All of the above with mid-to-high-end materials.
• Porcelain or oak floating floor.
• Branded kitchen appliances.
• Improved thermal and acoustic insulation.
• Restoration of original stone and wood elements.

Premium Renovation (€1,000-1,200/m²)

• Top-quality materials and custom design.
• Smart home systems and advanced energy efficiency.
• Full granite façade restoration.
• Exposed chestnut beams restored.
• Underfloor heating with heat pump.

Xunta de Galicia Rehabilitation Grants

The Programa Rehabilita from the Xunta de Galicia is the primary source of renovation grants. It can cover up to 40% of your renovation budget. Key requirements include: the property must be over 15 years old, works must improve accessibility or energy efficiency, and the budget must be approved by a qualified technician.

Additionally, many local councils offer IBI tax reductions of up to 50% for 3-5 years after renovation.

Municipal Building Licences

• Major works licence: For structural changes — takes 2-4 months.
• Minor works licence: For interior work — typically 2-4 weeks.
• Prior notification: For minor work that only requires informing the council.

Properties in Historic Quarters (such as Corcubión's old town) also require Heritage Service authorization from the Xunta.

Common Issues with Galician Stone Houses

• Rising damp: With over 1,200mm of annual rainfall, moisture management is critical. Waterproof membranes and cross-ventilation are essential.
• Poor insulation: Granite walls (40-60cm thick) have good thermal mass but poor insulation. Interior lining with rock wool or cork can improve efficiency by up to 60%.
• Roof deterioration: Complete roof replacement for a 120m² house costs €8,000-€15,000.

Recommended Local Materials

• Galician granite: From local quarries. €40-80/m².
• Chestnut wood: The queen species of Galician forests, perfect for exposed beams and flooring.
• Traditional curved roof tiles: €0.80-1.20/unit.
• Lime mortar: Essential for stone walls — allows breathability.

Energy Certificate (CE3X)

All properties for sale or rent need an Energy Performance Certificate. In Galicia, the CE3X program is used. A full renovation with improved insulation and efficient heating can upgrade the rating from E/F to B/C, increasing market value by 5-10%.

Realistic Timelines

• Project and permits: 2-4 months.
• Construction: 3-6 months.
• Finishing and furnishing: 1-2 months.

Total: 6 to 12 months from purchase to move-in ready.

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Related articles

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• Renovating a stone house in Galicia: costs, permits and traditional techniques - General stone renovation guide for all of Galicia
• Guide to renovating a stone house on the Costa da Morte - Specific renovation guide for the Costa da Morte

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