Syplo and Dalo respond to two distinct logics within the French system of access to social housing. The former is an operational management tool for the prefectural quota. The latter is a legal right that can be enforced, based on the law of March 5, 2007, which holds the state accountable before the administrative judge in case of non-rehousing. Confusing the two amounts to mixing a dashboard with a legal appeal.
Syplo as a management tool for the prefectural quota
Syplo (Système Priorité Logement) is a computer application managed by the decentralized services of the state. Its primary function is to centralize the files of priority populations in a unique pool, accessible by prefectures and social landlords during housing allocation commissions (CAL).
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In practice, Syplo does not create any rights. A household registered in the tool does not acquire any additional legal status. Registration signals to the landlord that the file falls under an identified priority (DALO, PDALPD, exit from accommodation, domestic violence, disability) and that the prefecture is actively monitoring the housing proposal.
We observe that to better understand the difference between Syplo and Dalo, one must think in terms of function: Syplo organizes the flow of priority applications to landlords, while Dalo opens an appeal when this flow does not result in an offer.
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Social workers enter the applicant’s information directly into Syplo. This entry conditions the visibility of the file to the reservists. A file absent from Syplo, even if recognized as a priority, risks never being presented in CAL for the prefectural quota.
Dalo recognition and automatic transfer to Syplo
Any household recognized as priority and urgent by the mediation commission (COMED) is automatically integrated into Syplo in most departments, without any additional steps from the household or the social worker. The COMED decision is transmitted to the prefecture, which registers the file in the Syplo pool.
This automatic transfer has a measurable effect on the frequency of proposals. The DALO household enters a restricted subset of files that state services actively follow up with landlords. In practice, this results in more regular presentations in CAL.
However, this mechanism does not eliminate delays. In tense areas, the legal deadlines for rehousing (three months for housing, six months in Île-de-France after the COMED decision) are regularly exceeded. It is precisely at this stage that the legal dimension of Dalo takes over from the Syplo tool.
Dalo appeal before the administrative court: what Syplo does not allow
Dalo is the only one of the two systems that opens a legal appeal against the state. When a household recognized as priority and urgent has not received any suitable proposal within the deadlines, it can appeal to the administrative court. The judge can then order the state to rehouse the applicant under financial penalty.
Syplo does not intervene at any point in this judicial procedure. It serves as a documentary source: the prefecture can extract from Syplo the history of proposals made (or not made) to the household, any refusals, and the reasons. Before the judge, this data becomes part of the case file.
A technical point often overlooked: the refusal of a housing proposal recorded in Syplo can weaken the Dalo appeal. If the household has declined an offer deemed suitable by the prefecture, the administrative judge may determine that the state has fulfilled its obligation. Thus, traceability in Syplo works both ways.
Reasons for refusal and consequences on the enforceable right
Acceptable reasons for refusal remain framed. A housing unit too far from the workplace, unsuitable for the applicant’s disability, or whose rent clearly exceeds the household’s financial capacity constitutes a legitimate refusal. Conversely, a refusal based on neighborhood or floor preferences is likely to be held against the applicant.
We recommend that social workers document each refusal precisely in Syplo, with supporting documents (employer’s certificate, medical certificate, tax notice). This rigor protects the household in case of subsequent litigation.
Interaction between Syplo and Dalo: common pitfalls
The most common confusion is to believe that registration in Syplo is sufficient to benefit from the enforceable right. This is not the case. Syplo manages administrative priorities, not legal rights. A household can appear in Syplo under the PDALPD without ever having filed a DALO appeal.
Conversely, some households file a DALO appeal without having an active social housing application in the national registration system (SNE). The COMED can hardly recognize a household as priority if it is not a social housing applicant. The two processes are complementary, not substitutable.
Here are the key steps for a coherent process:
- Submit a social housing application on the SNE and obtain a unique registration number, a prerequisite for any follow-up
- Contact the mediation commission (COMED) if the situation meets Dalo criteria (no proposal despite an abnormally long delay, accommodation with a third party, inadequate housing, disability)
- Check with the social worker that the file appears in Syplo after the COMED decision, to ensure its visibility to landlords
- In case of non-rehousing within the legal deadlines, appeal to the administrative court within the framework of the Dalo legal appeal
Households labeled PDALPD and Syplo registration without Dalo
Households identified as priority under the departmental action plan for housing and accommodation for disadvantaged persons (PDALHPD) can be registered in Syplo without going through the COMED. This labeling, decided at the departmental level, provides access to the prefectural quota but does not open any enforceable right before the judge.
This distinction has major practical consequences. A PDALPD household registered in Syplo that does not receive a proposal has no judicial leverage. To obtain one, it must separately initiate a Dalo appeal with the COMED.
The coexistence of these two access routes to the prefectural quota within the same computer tool creates confusion. Syplo displays files with very different legal statuses, and only the priority reason indicated in the application allows them to be distinguished. A landlord consulting the pool does not spontaneously see which of these files holds the state accountable and which falls under a simple departmental recommendation.