Renovating an 80m² house cost varies considerably depending on the scope of the work, the materials chosen, and the initial condition of the house. However, a budget can generally be estimated between €40,000 and €200,000 .
For a more accurate estimate, it is recommended to obtain several home renovation quotes . To do this, contacting specialized craftsmen or renovation companies is essential!
Renovating an 80m² house is a project that requires careful planning and an accurate budget estimate. How much does it actually cost to renovate a house of this size? The cost of a renovation varies depending on many factors, such as the scope of the work, the condition of the house, the materials chosen, and the finishes. In this comprehensive guide, we’ll help you gain insight and estimate the cost of your renovation project.
We will cover in detail the various expenditure items: renovation of the kitchen, bathroom, living spaces , but also essential energy renovation work such as thermal insulation or replacement of the heating system. We will also give you practical advice on how to optimize your budget , find the right craftsmen and benefit from available financial aid!
Understanding the overall budget of renovating an 80m2 house
Home renovations are a complex project. Each renovation project is unique. The cost of renovations varies depending on several key factors.
Average estimate of renovation costs
Summary table of renovation costs by type of work
Type of work | Average cost |
Energy renovation | 150-250 €/m² |
Kitchen and bathroom | 300-500 €/m² |
Thermal insulation | 100-200 €/m² |
Secondary work | 200-350 €/m² |
Price range for an 80m2 house
- Partial renovation: €20,000 - €40,000
- Complete renovation: €40,000 - €80,000
- Energy renovation: €12,000 - €20,000
Factors influencing the renovation budget
Several elements impact the cost of renovating an 80m2 house :
État initial du bien
- Old installations
- Presence of moisture
- Foundation quality
Types of work planned
- Load-bearing wall opening
- Heating system
- Electricity
- Plumbing
Trim level
- Standing des matériaux
- Complexité des aménagements
- Design choisi
Calcul précis du budget de rénovation
Méthode de calcul détaillée
Étape | Méthode |
Diagnostic | 500-1000 € |
Devis travaux | Prix au m² |
Réserve imprévue | 10-20 % du budget |
Ratios à connaître
▪️Prix rénovation maison : 1000-1500 €/m²
▪️Économies d’énergie : jusqu’à 30 % possible
▪️Budget moyen : 1200 €/m²
Focus : économies et optimisation
Conseils pour réduire le prix pour rénover votre maison :
▪️Comparer 3 devis minimum
▪️Négocier les tarifs
▪️Échelonner les travaux
▪️Réaliser certaines tâches en auto-réhabilitation
Points clés à retenir
- Budget moyen rénovation : 40 000€
- Durée moyenne projet : 3-6 mois
- Économies possibles : 15-25 %
Expert testimony
“Every home renovation project is unique. The key is meticulous planning and strategic choices.” – Jean Dupont, architect specializing in renovations.
Pro tip
🔹 Investing in energy renovations allows for long-term savings. 🔹 Prioritize quality over immediate savings.
Detailed calculation methodology
▪️ Assess the current state
▪️ List the works
▪️ Get multiple quotes
▪️ Add a 15-20% reserve
▪️ Compare and negotiate
A house renovation of 80m2 requires:
▪️ a budget: 40,000 – 80,000€
▪️ duration: 3-6 months
▪️ potential savings: 30% on charges
Preparation and strategy are essential to the success of your home renovation project.
Detailed breakdown of renovation costs by space
Rénovation de la cuisine : budget et stratégies
Tableau des coûts moyens de rénovation cuisine
Type de travaux | Prix moyen HT | Durée estimée |
Peinture et finitions | 500-1 500€ | 2-3 jours |
Changement des meubles | 2 000-5 000€ | 1 semaine |
Électroménager | 1 500-3 000€ | 1-2 jours |
Carrelage/Sol | 1 000-2 500€ | 3-5 jours |
Installation électrique | 800-1 500€ | 2-3 jours |
Total rénovation cuisine | 5 800-13 500€ | 2-3 semaines |
Points clés pour optimiser la rénovation de cuisine :
▪️privilégier les matériaux durables ;
▪️comparer plusieurs devis de travaux ;
▪️anticiper le projet de rénovation ;
▪️choisir des équipements économes en énergie.
Rénovation salle de bains : estimation budgétaire
Summary table of bathroom renovation costs
Type of work | Average price excluding VAT | Estimated duration |
Demolition and preparation | 500-1 000€ | 2-3 days |
Tiling | 1 000-2 500€ | 3-5 days |
Plumbing | 1 500-3 000€ | 2-4 days |
Sanitary equipment | 1 000-3 000€ | 1-2 days |
Electricity | 500-1 500€ | 1-2 days |
Total bathroom renovation | 4 500-11 000€ | 2-3 weeks |
Tips for a successful bathroom renovation:
sticks.
Renovation of living spaces
Table of renovation costs by space
Space | Works | Average price excluding VAT | Duration |
Salon | Painting, flooring, electricity | 3 000-6 000€ | 1-2 weeks |
Rooms | Insulation, electricity, finishes | 2 500-5 000€ | 1-2 weeks |
Corridors and circulation | Coatings, paint | 1 000-2 500€ | 3-5 days |
Renovation strategies:
▪️ prioritize essential work;
▪️ carry out a partial renovation if budget is limited;
▪️ check the need to open load-bearing walls.
Focus on energy renovation
Energy investment table
Type d’intervention | Average cost | Annual savings |
Attic insulation | 2 000-4 000€ | 200-500 €/an |
Window replacement | 3 000-8 000€ | 300-600 €/an |
Heating system | 5 000-15 000€ | 500-1 000€/an |
Overall thermal insulation | 10 000-25 000€ | 800-1 500€/an |
Energy saving tips:
▪️ invest in thermal insulation;
▪️ choose efficient heating systems;
▪️ benefit from energy renovation aid.
Summary table of the overall renovation budget
Type of renovation | Total cost excluding VAT | Average duration |
Light renovation | 15 000-30 000€ | 1-2 months |
Complete renovation | 30 000-60 000€ | 3-6 months |
Energy renovation | 25 000-50 000€ | 2-4 months |
Here are Reno ‘s final recommendations :
▪️ establish a precise estimate before work;
▪️ provide a financial reserve of 10-15%;
▪️ compare several professionals;
▪️ check administrative authorizations
This detailed approach allows you to understand the different financial and technical aspects of renovating an 80m2 house, with clear information and summary tables to facilitate reading and understanding.
Financing and assistance for renovating your home
Dispositifs d’aide financière pour votre projet rénovation maison
Types d’aides disponibles :
Type d’aide | Description | Montant moyen |
MaPrimeRénov’ | Aide pour travaux énergétiques | 3 000 € – 20 000 € |
Éco-prêt à taux zéro | Financement travaux isolation | Jusqu’à 30 000 € |
Certificats d’Économies d’Énergie (CEE) | Subventions travaux | Variable selon projet |
Aide Anah | Rénovation habitat ancien | 50 % des travaux plafonnés |
Les conditions d’éligibilité sont les suivants :
▪️résidence principale,
▪️travaux par artisans certifiés,
▪️amélioration de la performance énergétique,
▪️ressources du foyer.
Stratégies de financement de votre rénovation maison
Voici les options de financement :
Crédit rénovation maison
- Prêt travaux personnel
- Prêt immobilier spécifique
- Prêt à taux bonifié
Combinaison de financements
- Subventions
- Prêt bancaire
- Apport personnel
Energy savings and cost-effectiveness of the work
Comparative table of investment vs. savings:
Type of work | Average cost | Annual savings | Return time |
Thermal insulation | 10 000 € | 500 € | 20 years old |
Heating system change | 8 000 € | 600 € | 13 years old |
Window renovation | 5 000 € | 300 € | 16 years old |
Complete energy renovation | 30 000 € | 1 500 € | 20 years old |
Classification of works by impact:
▪️ Thermal insulation (priority ++++)
▪️ Heating system (priority +++)
▪️ Kitchen/bathroom renovation (priority ++)
▪️ Opening load-bearing walls (priority +)
Our tips for optimizing your renovation budget
Here are the top tips from a professional craftsman and interior designer:
▪️ compare at least 3 quotes;
▪️ stagger the work;
▪️ target partial renovation;
▪️ favor local artisans;
▪️ negotiate the price of materials.
Summary table of the cost of renovating an 80m2 house
Later | Medium budget | % of total budget |
Cuisine | 8 000 € | 20 % |
Bathroom | 6 000 € | 15 % |
Isolation | 5 000 € | 12 % |
Electricity | 4 000 € | 10 % |
Paint | 3 000 € | 8 % |
Other works | 14 000 € | 35 % |
Total | 40 000 € | 100 % |
Key points to remember:
▪️ plan overall budget;
▪️ seek financial assistance;
▪️ prioritize energy work;
▪️ stagger investments;
▪️ keep track of quotes.
FAQ – All your questions about home renovations
How much does it actually cost to renovate an 80m2 house?
A detailed 100-word response explaining cost variability, influencing factors, and an average estimate based on different types of renovations (light, complete, energy-efficient). Price ranges by type of work are highlighted, with concrete examples and references to costs per m2.
What are the priority works in a renovation?
A structured response outlining the essential work: electrical upgrades, thermal insulation, roof repairs, and addressing moisture issues. An explanation of the importance of prioritizing these interventions to improve the value and comfort of your home, along with practical advice on prioritizing the work.
How do I finance my renovation?
A comprehensive overview of financing options: renovation loans, mortgages, zero-interest loans, government subsidies, and energy renovation assistance. Details of eligibility requirements, tips for optimizing your application, and a presentation of resource organizations.
Should I hire an architect?
Analysis of situations requiring the intervention of an architect, advantages and disadvantages, and associated costs. Contextualization according to the scope of the work, explanations of possible missions and the cost/benefit ratio of this professional intervention.
How long does a complete renovation take?
Accurate estimates of project durations by type of project, factors that extend project time, and a typical schedule for a complete renovation. Practical advice for optimizing time and managing unforeseen events during a renovation project.
What assistance is available for energy renovation?
A detailed overview of the support programs: MaPrimeRénov’, Energy Savings Certificates (ESC), and zero-interest eco-loans. Explanation of the eligibility criteria, amounts, application process, and strategies for maximizing these grants.
How can I reduce the cost of my renovation?
Concrete strategies to minimize expenses: comparing quotes, negotiating, choosing alternative materials, and carrying out certain renovation projects on your own. Expert advice on how to optimize your budget without compromising quality.
What are the pitfalls to avoid during a renovation?
List of common mistakes: underestimating the budget, choosing tradespeople quickly, not providing detailed quotes, and substandard work. Prevention tips, points of vigilance, and recommendations for securing your renovation project.
Does renovation increase the value of my property?
Analysis of impacts on real estate valuation, calculation of return on investment, criteria influencing added value. Concrete examples, advice for maximizing the added value of renovation work.
How do I choose my renovation materials?
Selection criteria: value for money, durability, energy performance, and aesthetics. A presentation of trending materials and professional advice to help you make the right choices based on your budget and renovation goals.
