Maintenance & Structural Repairs in Aragon Commercial Leases

Managing a retail storefront, warehouse, or office building in Aragon is fundamentally different from residential renting when infrastructure fails. The crux of commercial maintenance obligations in Spain lies entirely in the explicit drafting of the lease.

Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed Spanish attorney for advice specific to your situation. Information last verified: March 2026.

The Danger of Silence: Reverting to Residential Rules

If an Aragonese commercial lease is drafted poorly and is silent on "who repairs what," the Spanish Urban Leases Act (LAU) defaults to its residential framework (Article 21).

This is disastrous for landlords: It means the property owner becomes legally responsible for funding all major, structural, and necessary repairs to keep the commercial space operational—from replacing a collapsed roof in a Huesca warehouse to fixing internal building plumbing required by a Zaragoza restaurant—without the ability to charge the commercial tenant.

"Triple Net" (NNN) and Transferring Risk

Because commercial contracts thrive on the "freedom of pacts" (libertad de pactos), landlords in the B2B sector standardly push the absolute maximum operational and structural burden onto the corporate tenant.

A prevalent strategy in Aragonese commercial real estate is drafting an agreement where the business operates on what is internationally known as a Triple Net (NNN) basis:

• Complete Maintenance Shift: The tenant legally agrees to fund all preventative and corrective maintenance, including fixing specialized machinery, electrical grids, and commercial facades.
• Tax and HOA Shift: The contract explicitly forces the business tenant to pay the annual municipal property tax (IBI) and the monthly building community fees (Comunidad), completely insulating the landlord’s base rental yield.
• Insurance: The tenant must secure comprehensive civil liability and structural insurance policies, naming the landlord as an additionally insured party.

Modifying the Premises: Works by the Tenant

A commercial tenant usually needs to drastically transform the "raw" space to fit their brand identity (a process known as obras de adecuación).

The Golden Rule: Prior Written Consent

Under Aragonese and Spanish law, a commercial tenant cannot execute significant structural works without the express, prior written consent of the landlord.

• Knocking down load-bearing walls, altering the building's facade, or merging the space with an adjacent local without permission is a direct cause for immediate contract termination and eviction.
• Furthermore, upon eviction or the natural end of the contract, the landlord has the right to demand that the tenant fund the complete restoration of the premises back to its original state, unless the landlord prefers to retain the improvements without paying any compensation (which must be explicitly stated in the contract).

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