Renovation Mortgage: How It Works and How to Apply

Want to renovate your home? Discover how a renovation mortgage works: the complete guide on how to apply, the necessary documents, and disbursement based on work progress.

Published on Dec 05, 2025
Updated on Dec 05, 2025
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In Brief (TL;DR)

Discover how a renovation mortgage works: a complete guide explaining how to present your project, what documents are needed, and how the loan is disbursed for your home improvement work, often based on the progress of the project.

We will delve into the application process, from project presentation to the necessary documents, with a focus on disbursement based on the statement of work progress (SAL).

Finally, we explain what documents are necessary and the correct procedure for submitting the application to the bank.

The devil is in the details. 👇 Keep reading to discover the critical steps and practical tips to avoid mistakes.

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Renovating your home, whether it’s an old family residence in the heart of a village or an apartment in a European metropolis, is a significant step that blends tradition and innovation. Often, turning this desire into reality requires financial support. The renovation mortgage is the tool designed for this very purpose: a specific loan to cover the costs of modernizing, upgrading the energy efficiency of, or maintaining a property. This financial product adapts to various needs, allowing you to increase the value of your real estate assets and improve your quality of life.

Understanding how it works, what the requirements are, and how to apply is essential to navigate the process with peace of mind. Unlike a standard personal loan, a renovation mortgage often offers more advantageous terms regarding interest rates and duration, but it requires a more structured procedure. This is because it is tied to a specific project and secured by a mortgage on the property itself. Undertaking a renovation means investing in the future, combining the charm of Italian architectural heritage with modern needs for comfort and sustainability.

Person analyzing architectural plans for a building renovation with a calculator and documents on a table.
Planning is the first step to renovating your home. Discover in our guide how a renovation mortgage can turn your projects into reality.

What Is a Renovation Mortgage and Why Choose It

A renovation mortgage is a medium-to-long-term loan granted by a bank or credit institution to cover the expenses of construction work on a property you own. It can be requested for both a primary residence and a second home. Its purpose is restricted: the disbursed sum must be used exclusively for the documented work. This feature clearly distinguishes it from a personal loan, which offers non-earmarked liquidity but generally comes with higher interest rates and shorter terms.

Choosing a renovation mortgage is particularly advantageous for large-scale projects, such as re-roofing, changing interior layouts, seismic retrofitting, or a complete energy efficiency upgrade. For projects with significant costs, exceeding 30,000-50,000 euros, a mortgage is almost always the most beneficial solution. Furthermore, it offers access to significant tax benefits, such as a 19% deduction on interest paid, under certain conditions. This advantage, combined with more competitive rates, can significantly reduce the total cost of the operation.

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Types of Financed Projects

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Not all renovation projects are equal in the eyes of the bank. The required documentation and sometimes the mortgage conditions depend on the nature of the work. Generally, there are three main categories of eligible projects:

  • Routine Maintenance: This includes repair, renovation, and replacement of finishes, such as painting walls, repairing systems, or replacing floors. For these projects, presenting the contractor’s cost estimate is often sufficient.
  • Extraordinary Maintenance: This involves more substantial work that does not alter the building’s volume but renews structural parts, such as replacing windows and doors, redoing systems (electrical, plumbing), creating new partition walls, or consolidating foundations. In this case, in addition to the estimate, planning documentation like the SCIA (Certified Notification of Commencement of Activity) is required.
  • Major Renovation Works: These include projects that can modify the structure and floor plan of the property, such as extensions, adding stories, or interventions that result in a building that is wholly or partially different from the previous one. These operations require a building project prepared by a qualified professional (architect, engineer, or surveyor) and a Building Permit issued by the Municipality.
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How Disbursement Works: The SAL Mechanism

One of the distinctive features of a renovation mortgage, especially for major projects, is the disbursement method. The bank can grant the sum in two main ways: in a single lump sum or based on a Statement of Work Progress (SAL).

A lump-sum disbursement is more common for routine maintenance or smaller projects. The sum is paid into the applicant’s account after the mortgage contract is signed. For more complex and expensive projects, however, disbursement based on SAL is standard practice. This means the capital is not released all at once, but in several installments, as the work progresses and is certified.

The SAL mechanism works as follows: after a phase of the project is completed (e.g., re-roofing or system installation), an appraiser appointed by the bank conducts a site visit to verify the actual progress. Once the completed work and the increase in the property’s value are certified, the bank disburses the corresponding installment of money. This process protects both the borrower, who is not exposed to the full debt from the start, and the bank, which ensures the financing is actually used for its stated purpose. During the SAL disbursement period, you typically only pay interest on the amount already disbursed (pre-amortization), and the actual amortization plan begins only after the work is completed.

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Requirements for Applying for the Mortgage

To obtain a renovation mortgage, the bank assesses a series of requirements concerning both the applicant and the property undergoing the work. The evaluation is similar to that for a mortgage to purchase a primary residence, but with some specifics related to the renovation project.

Personal and Income Requirements

The applicant must demonstrate a solid and reliable financial situation. The main personal requirements include:

  • Age: Generally between 18 and 75 years at the end of the amortization plan.
  • Stable Income: You must have a demonstrable income (from employment, self-employment, or a pension) sufficient to support the mortgage payment. As a rule, the monthly payment should not exceed one-third of the household’s net monthly income.
  • Creditworthiness: The bank will check for any negative reports in credit bureaus like CRIF, which could indicate past debt problems.

Property and Project Requirements

The property itself is a fundamental guarantee for the bank, which will carefully evaluate its characteristics. The bank will place a lien on the property to secure the loan. Through a property appraisal, an appointed expert will assess:

  • The current value of the property and its future value once the work is completed. The maximum mortgage amount is usually calculated as a percentage (up to 80%) of the post-renovation value.
  • Zoning and land registry compliance: The property must comply with building regulations and have no unpermitted structures.
  • Project consistency: The appraiser verifies that the work described in the estimate is consistent, necessary, and technically feasible.
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The Application Process: Key Steps and Documents

Applying for a renovation mortgage follows a well-defined path. Being prepared and having all the documentation ready can significantly speed up the process. Here are the fundamental steps and necessary documents.

The first step is to gather the documentation. This is divided into three categories:

  1. Personal documents: ID card, tax code, certificate of residence, and family status certificate.
  2. Income documents: The latest pay stubs and CUD (annual income statement) for employees; the Modello Unico tax return and professional registry enrollment for the self-employed; the pension slip for retirees.
  3. Technical documents for the property and works: This is the most specific part. It includes the property’s deed of origin, the land registry plan, and, depending on the work, the detailed contractor’s estimate, the bill of quantities, the SCIA, or the Building Permit. For a deeper look at standard documents, it is useful to consult the complete guide on documents for a mortgage.

Once the application is submitted, the process continues with the underwriting phase, during which the bank analyzes the documentation and assesses the feasibility of the operation. This is followed by the technical appraisal of the property. If the outcome is positive, the bank approves the loan, and the process moves to the signing of the notarial deed of mortgage, which formalizes the contract and the registration of the lien. Finally, the sum is disbursed, either in a lump sum or as the first installment of the SAL.

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Costs and Tax Benefits to Consider

In addition to the cost of the work, applying for a renovation mortgage involves a series of ancillary expenses that are good to know in order to plan your budget correctly. The main costs include loan processing fees, appraisal fees, the substitute tax (equal to 0.25% of the amount for a primary residence and 2% for a second home), and the notary’s fee for the mortgage deed.

However, there are significant tax advantages. If the mortgage is for the renovation of your primary residence, it is possible to deduct 19% of the interest paid and ancillary charges from your IRPEF (personal income tax), on a maximum amount of 2,582.28 euros per year. To qualify, the mortgage contract must be signed within the 6 months prior to or 18 months after the start of the work, and the property must be used as a primary residence within 6 months of their completion.

This deduction can be combined with the building bonuses provided by law, such as the Renovation Bonus. For 2025, the Renovation Bonus provides a 36% deduction on a maximum expenditure of 48,000 euros. If the work improves energy efficiency, you can also access the Ecobonus. Taking advantage of these benefits, along with a conscious choice of the type of interest rate, is the key to optimizing the investment.

Conclusion

disegno di un ragazzo seduto a gambe incrociate con un laptop sulle gambe che trae le conclusioni di tutto quello che si è scritto finora

The renovation mortgage proves to be a powerful and versatile financial tool, capable of breathing new life into properties while respecting tradition and looking towards innovation. Whether for small modernization projects or large-scale redevelopment works, this loan offers a structured and often more economically advantageous solution compared to other forms of credit. The key to success lies in careful planning: from precisely defining the project and costs, to meticulously gathering documentation, to choosing the bank and product best suited to your needs. Understanding how disbursement based on a Statement of Work Progress works and taking advantage of available tax benefits allows you to transform a complex operation into a strategic investment in your housing future. Renovating your home is not just a matter of bricks and design, but a way to improve comfort, increase the value of your assets, and contribute to a more sustainable development model.

Frequently Asked Questions

disegno di un ragazzo seduto con nuvolette di testo con dentro la parola FAQ

What is the difference between a renovation mortgage and a personal loan?

The main difference lies in the purpose, amount, duration, and collateral. The renovation mortgage is an earmarked loan, meaning the disbursed sum must be used exclusively for work on the property. It requires a lien on the house as collateral, allows for higher amounts (generally over 30,000 euros) with long terms (up to 30 years) and lower interest rates. A personal loan, on the other hand, is not earmarked, is quicker to obtain, and does not require a lien, but it finances smaller amounts with shorter terms and higher interest rates.

How much can you get with a renovation mortgage?

The maximum amount you can finance with a renovation mortgage depends on the property’s value and the cost of the work. Generally, banks grant an amount up to 80% of the value the property will have after the renovation, as estimated by the technical appraisal. For example, if a house is worth 150,000 euros and after 50,000 euros of work its estimated value rises to 200,000 euros, the bank could finance up to 160,000 euros (80% of 200,000), thus covering both a potential purchase and the work. In some specific cases, such as for green mortgages or with additional guarantees, some banks may exceed this threshold.

Is it possible to get a mortgage to renovate a second home?

Yes, it is absolutely possible to apply for and obtain a mortgage to renovate a second home. The procedures and requirements from banks are very similar to those for a primary residence. The main difference concerns the tax treatment: the substitute tax on the mortgage amount is 2% instead of the 0.25% for a primary residence. Furthermore, you cannot take advantage of the 19% deduction on interest paid, which is reserved exclusively for mortgages on a primary residence.

What happens if the work stops during a SAL mortgage?

The disbursement mechanism based on a Statement of Work Progress (SAL) provides protection for this very eventuality. If the work were to stop for any reason, the borrower would be required to repay the bank only the amount that has actually been disbursed up to that point. Subsequent installments of the loan will not be released, and the total debt will be limited to the sum already received. This reduces the risk for both the client, who does not have to repay an amount greater than what was spent, and for the bank.

Are tax bonuses for renovation compatible with the mortgage?

Yes, the tax benefits are fully compatible and can be combined. You can apply for a mortgage to finance the work and, at the same time, benefit from building bonuses like the Renovation Bonus (currently 36% for 2025 on a cap of 48,000 euros) or the Ecobonus for energy efficiency projects. Furthermore, if the mortgage is for your primary residence, you can add the 19% IRPEF deduction on the mortgage interest itself to these advantages, further optimizing the overall savings.

Frequently Asked Questions

What is the difference between a renovation mortgage and a personal loan?

The main difference lies in the amount, duration, and collateral. A renovation mortgage is ideal for major projects and large sums (generally over 30,000 euros), has a term that can go up to 30 years, and requires a lien on the property as collateral. A personal loan is more suitable for smaller projects, has a quick disbursement time, a maximum term usually of 10 years, and does not require a lien, but it has interest rates that tend to be higher.

What documents are needed to apply for a renovation mortgage?

To apply for a renovation mortgage, you need personal documents (ID card, tax code, family status certificate), income documents (latest pay stubs, CUD or Modello Unico), and technical documents related to the property. The latter include the land registry plan, the deed of origin, and, depending on the work, the cost estimate, the building project, and necessary permits like CILA or SCIA.

How is the renovation mortgage amount disbursed?

Disbursement can occur in two main ways. The first is in a single lump sum, usually for smaller projects. The second, more common for significant work, is based on the Statement of Work Progress (SAL). In this case, the bank disburses the amount in several installments, after an appraiser has verified the actual completion of a portion of the work as per the project.

What type of renovation projects can be financed with a mortgage?

A renovation mortgage can finance various types of projects. These range from routine maintenance, such as painting or replacing finishes, to extraordinary maintenance, which includes redoing systems, replacing windows and doors, or modifying partition walls. It is also possible to finance major renovation works that modify the building’s structure and energy efficiency upgrade projects.

Is it possible to apply for a mortgage to renovate a second home?

Yes, it is possible to apply for a mortgage to renovate a second home. The application procedures and requirements are similar to those for a primary residence. However, the conditions may be slightly different, for example with a lower maximum loan amount (often up to 60% of the value) and potentially higher interest rates. Furthermore, tax benefits, such as the deduction of interest paid, are generally only provided for a primary residence.

Francesco Zinghinì

Electronic Engineer expert in Fintech systems. Founder of MutuiperlaCasa.com and developer of CRM systems for credit management. On TuttoSemplice, he applies his technical experience to analyze financial markets, mortgages, and insurance, helping users find optimal solutions with mathematical transparency.

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