PBSA Series: Outside the residential regime
Spain's 2023 housing law reset the economics of residential rental. Institutional PBSA sits outside it — not through a loophole, but through a contract structure that is long-established and widely used. It is the most underpriced feature of the asset class, and the one that has to be earned operationally rather than inherited.
Across this series we have argued the Spanish PBSA case from supply, from sub-market, from the operator model and from the listed market. Each of those arguments assumes something it has not yet examined: that the income line on a Spanish student residence is free to move with the market.
That assumption is not automatic. Spain has spent three years building a residential rent-control regime, and a considerable amount of institutional capital has quietly written off Spanish Living exposure on the strength of it. The assumption holds — but it holds because of the contract the building sits under, not because of the building itself. This piece sets out what that contract is, what it does, and what it does not do.
I. Three contracts, one asset class
A Spanish PBSA building can be held under more than one legal structure, and the distinction is not academic. It sets where the rental income line is allowed to go. Three contracts matter.
The residential lease. A standard home rental in Spain runs under the Ley de Arrendamientos Urbanos (the LAU), specifically the Article 2 lease for a tenant's habitual residence.1 This is the contract the 2023 housing law was written for, and it carries the full weight of that law: indexed rent increases, mandatory renewal rights, and the stressed-market provisions discussed below. Build-to-rent and conventional residential sit here. Institutional PBSA generally does not.
The lodging contract — contrato de hospedaje. This is the most common structure for a Spanish student residence. It is a services contract rather than a property lease, closer in legal character to a hotel arrangement than to a tenancy: the operator provides a bundle of services and retains control of the premises, and the resident contracts for a stay rather than for possession of a dwelling.2 Because it is not a residential lease, it sits outside the LAU Article 2 regime entirely.
The non-residential lease — LAU Article 3. Some buildings cannot be operated as a contrato de hospedaje, often for reasons tied to the building's authorised planning use. For those, the LAU offers the Article 3 lease for use other than dwelling (uso distinto de vivienda).1 It is still a lease, but a non-residential one, and it also falls outside the Article 2 residential regime. It reaches the same commercial position as the lodging contract by a different route. It asks for more deliberate structuring to get there, because the lease must be drafted and operated so that its non-residential character is clear, but it is well understood and widely used.
A note on substance over form. The legal treatment of any of these contracts follows the commercial reality of how the asset is operated, not the label on the document. A building that drifts toward residential lease behaviour — long undifferentiated stays, minimal services — invites recharacterisation by the courts or the tax authority, and a recharacterised asset loses exactly the income treatment the rest of this piece describes. The contracted-stay position has to be earned by structuring and operating the asset as one.
Bottom line: Institutional PBSA in Spain is generally held under either the contrato de hospedaje or the LAU Article 3 lease. Both sit outside the residential tenancy regime — provided the asset is genuinely operated as a contracted-stay product. What follows is what that means for income, for comparison sets, and for the underwrite.
II. What sits outside the rent cap
The 2023 housing law (Ley 12/2023, por el derecho a la vivienda) introduced a reference index for the annual review of residential rents, the IRAV, replacing CPI indexation for tenancies covered by the law from 26 May 2023.3 The index moved from close to 2.2% in early 2025 to 2.48% on the most recent published reading. The underlying cap has itself proven more contested than the headline number suggests: an extraordinary decree fixing a temporary 2% ceiling was in force for five weeks in March and April 2026 before Congress declined to ratify it, at which point the ordinary IRAV mechanism resumed.6 The index applies to the Article 2 residential lease, and to the rent on new contracts formalised in an area declared a strained residential market.
It does not apply to the contrato de hospedaje, and it does not apply to the LAU Article 3 lease.2
The practical consequence for the underwrite is that the income line on a Spanish PBSA asset is market-linked rather than statutorily capped. A caution sits alongside that. Contractual freedom to track the market is only worth something where the market is actually moving. In a price-sensitive, well-supplied sub-market the headroom exists on paper, but the demand curve sets the ceiling regardless of the contract. The regulatory feature converts into income growth most directly in the supply-starved central segment that Part 2 of this series identified — which is the segment this series has focused on throughout.
One separate point worth flagging. The tenancy regime and the building's authorised planning use are two different regulatory questions. They do not always align, and which of the two contracted-stay routes is available for a given building is often a function of its planning position rather than a free choice. Planning sits outside the scope of this piece, but it shapes which legal structure an asset can actually adopt.
Bottom line: Both the rent cap on new contracts in a strained residential area and the annual review cap for contracts signed from May 2023 are residential-regime instruments. Spanish PBSA, held under a contrato de hospedaje or an Article 3 lease, is not in the residential regime. The income line moves with the market, not with the index.
III. How that compares with the other Living options in Spain
For an investor allocating to Spanish Living, the relevant comparison is not Spanish PBSA against PBSA elsewhere. It is Spanish PBSA against the other things the same capital could buy in the same country.
Conventional residential and BTR are the obvious alternatives. Both have a genuine demographic and yield case. Both also sit squarely inside the residential regime: IRAV-indexed income, mandatory renewals, exposure to stressed-market designation. The regulatory overhang that has built up around Spanish housing policy over the last three years falls on these assets directly.
PBSA carries a second structural feature the residential options do not. The contracted-stay framework supports more than one demand pool in the same building under the same legal structure. A residence can hold academic-year students through the standard September-to-June cycle and short-stay residents through the summer: language-school students, visiting researchers, interns, the broader mobile cohort Spanish cities have actively courted. A nine-month income profile becomes an eleven or twelve-month one without a change of contract type. For an asset class whose main perceived weakness is the summer void, that matters — and it is a regulatory point as much as an operational one. Where planning permits, the flexibility extends further: short-stay summer bookings captured at higher ADR than academic-year rents, on the same legal structure.
A third feature is VAT. The contrato de hospedaje is a services contract and falls within the reduced rate of VAT applicable to hospitality (10%), with the operator able to recover input VAT on capex and operating costs. Conventional residential leases are VAT-exempt — which sounds favourable to the tenant, but means the landlord cannot reclaim VAT on the building's capex or operating expenses. That VAT becomes a permanent leakage on the asset's economics. The LAU Article 3 lease typically falls within the standard VAT rate when operated for a non-residential commercial use, again with input recovery. For an institutional underwriter the impact is twofold: a meaningful recovery of construction or conversion VAT during the development phase, and a cleaner gross-to-net spread on stabilised income.7 Both flow from the same point — PBSA is not, for tax purposes, a residential asset.
Bottom line: Against Spanish residential and BTR, PBSA offers a market-linked income line, a multi-pool demand base, and a VAT-recovery position — all flowing from the same contractual position outside the residential regime.
IV. How that compares with PBSA abroad
Across borders the picture is more mixed, and it is worth being precise rather than sweeping. In several European markets purpose-built student housing is not heavily rent-controlled, so a blanket claim that Spain is less regulated than its peers would not survive scrutiny. The sharper and more defensible point is about the direction of regulation, not its current level.
The Netherlands is the clearest case. The Wet betaalbare huur, the Affordable Rent Act in force since July 2024, extended the regulated mid-market segment and pulled a large part of the student studio and room stock into rent regulation through the points-based valuation system.4 A market institutional capital had underwritten as lightly regulated moved, within a single piece of legislation, into the regulated category. The lesson for a Spanish underwriter is not the Dutch rent level. It is that the boundary between regulated and unregulated student housing can move, and recently did.
Spain's own boundary is not immovable either, and the honest place to show that is at home rather than abroad. In Catalonia, Ley 11/2025, in force from 1 January 2026, extended the region's rent-containment regime to certain study-purpose temporary leases.5The genuine contrato de hospedaje sits outside that measure, but the Article 3 temporary-lease route is more exposed to it within Catalonia. The framework is not political insurance: it has been stable for decades, and the political pressure around residential and BTR has not so far attached to PBSA in the same way — but it is a policy position rather than a constitutional guarantee, and the Catalan measure shows it can be legislated at regional level. We read this less as a threat to the thesis than as a confirmation of how the thesis has to be underwritten. The contracted-stay position is real, it has to be earned, and it has to be monitored region by region.
Bottom line: The cross-border case for Spain — and particularly for Madrid — is about regime stability rather than a snapshot of today's rent caps. Spain's contracted-stay framework is long-established. The Dutch and Catalan examples show the line can be redrawn.
V. 404 View
The Spanish PBSA regulatory framework is well understood by the institutional capital deploying into the sector. What is less consistently priced is how much of that framework's value is operationally earned rather than structurally inherited.
The features that make Spanish PBSA different from residential — market-linked income, annual contract turnover, multi-pool demand, VAT recovery — are not features of the asset. They are features of the contracted-stay regime, and they are only realised by an asset that is genuinely operated as one. A passive landlord owning a Spanish PBSA building captures none of them by default. The treatment depends on services delivered, occupancy churn managed, demand pools sequenced through the year, and contracts drafted and renewed correctly. Each of those is an operational discipline, not a real estate one.
The implication for institutional underwriting is significant. An asset under a third-party operating contract captures the regulatory features only to the extent the operator delivers on them — and the operator typically takes a meaningful share of the resulting NOI uplift through management and performance fees. An asset under an in-house operating capability captures the same features at lower fee leakage, with the additional flexibility to sequence demand pools across the year, price dynamically against them, and optimise the contracted-stay structure as the asset matures.
This is the structural feature PBSA Series Part 2 referred to as making the deployable cost basis condition workable in Spain — and it is why, in our view, a fully vertically-integrated platform is meaningfully advantaged over a real-estate-only sponsor relying on third-party operators. The contracted-stay regulatory framework is, in our view, the single largest source of operationally-captured alpha in European PBSA today. It is not a passive feature. It is an operating one.
Bottom line: The rent cap does not reach Spanish PBSA — but the exemption is not a gift. It is a position that has to be structured, operated and defended. Which is precisely why it rewards operators rather than landlords.
About 404 Capital
404 Capital (“404”) is a London-based real estate investment firm that identifies supply-starved sectors and builds operational real estate platforms from the ground up. Our first platform is Cuatro Urban Living (“Cuatro”). Cuatro is the next generation of student and young-professional living in Spain — boutique hospitality, residential at heart, with PBSA as the primary product and flex residences as a secondary one. Design-led, boutique-scale residences (typically 70–120 beds) with high-quality finishes and amenities, situated near educational institutions and in well-connected locations across Spain's leading university cities. Operated in-house by Cuatro with a tech-forward operating model.
Disclaimer
For professional investors only; not intended for retail clients. 404 Capital Ltd is not authorised or regulated by the FCA. This material is for discussion purposes only and does not constitute investment, legal or tax advice. The Spanish regulatory framework described is general in nature; the distinction between contracted-stay and residential tenancy treatment turns on the specific facts of each asset and each contract. Investors should take their own qualified Spanish legal advice on any specific transaction. 404 Capital is not a law firm.
References
1. Ley 29/1994, de 24 de noviembre, de Arrendamientos Urbanos, Arts. 2, 3 and 5. Boletín Oficial del Estado, boe.es.
2. On the contrato de hospedaje as a services contract distinct from a residential lease, and therefore outside the LAU Article 2 regime and the IRAV: Uría Menéndez, “El contrato de hospedaje: residencias de estudiantes y coliving,” Actualidad Jurídica Uría Menéndez no. 56 (2021); Clifford Chance, “Modalidades contractuales de alojamiento” (July 2024). The exclusion follows from the structure of the LAU rather than from a single codified provision, and is treated as settled in the practitioner literature cited.
3. Ley 12/2023, de 24 de mayo, por el derecho a la vivienda, and the Índice de Referencia de Arrendamientos de Vivienda (IRAV), published monthly by the Instituto Nacional de Estadística (ine.es). Boletín Oficial del Estado, boe.es.
4. Wet betaalbare huur (Affordable Rent Act), Netherlands, in force 1 July 2024, extending the regulated mid-market segment via the woningwaarderingsstelsel points system. Rijksoverheid, rijksoverheid.nl.
5. Ley 11/2025, de 29 de diciembre, de medidas en materia de vivienda y urbanismo (Catalonia), DOGC núm. 9574, 31 December 2025; in force 1 January 2026, adding Arts. 66 bis–66 ter to Ley 18/2007. DOGC, dogc.gencat.cat.
6. Real Decreto-ley 8/2026, of 20 March, on urgent measures for rent containment, establishing a temporary 2% cap on the annual updating of primary-residence rents, in force 22 March to 28 April 2026. The Congress of Deputies declined to ratify the decree on 28 April 2026, at which point it ceased to have effect and the ordinary IRAV mechanism resumed. Boletín Oficial del Estado, boe.es.
7. Spanish VAT treatment of student housing: Ley 37/1992, del Impuesto sobre el Valor Añadido, Arts. 20.Uno.23º (residential exemption) and 91.Uno.2.2º (reduced rate for hospitality services). Application to contratos de hospedaje follows Dirección General de Tributos consultas, including DGT V0991-22 and related rulings.
