APL Saint-Germain-en-Laye: how much will you receive?
Find out your APL amount in Saint-Germain-en-Laye, zone 1. Free calculation based on current CAF rates.
Housing in Saint-Germain-en-Laye with APL support
45,286
Inhabitants
Zone 1
APL classification
78100
Postal code
Saint-Germain-en-Laye, with 45,286 inhabitants, is a medium-sized city in the Yvelines department in the Île-de-France region. Classified in APL zone 1, it falls under that zone's rent caps (€336,97 for a single person). APL provides significant financial support, particularly for single individuals and young households.
The Île-de-France housing market remains the most competitive in France, with demand far exceeding supply. Rents are among the highest in the country, making housing aid particularly important for residents.
Understanding the calculation
The calculation uses your actual rent up to the zone 1 cap — €336,97 for a single person — plus a flat-rate charges allowance. Above that cap, a higher rent no longer increases the aid. File your claim as soon as you sign the lease: APL is not backdated. Also check that the home meets decency standards and, where relevant, is under a CAF agreement.
APL zoning and high-demand housing zoning use separate registers. Check the official Service-Public tool for the notice period in Saint-Germain-en-Laye.
Check the notice period for your municipality on Service-Public
Despite higher average incomes compared to the rest of France, housing costs in Île-de-France absorb a considerable share of household budgets, making APL essential for many residents.
APL 2026 rates in Saint-Germain-en-Laye
Monthly rent caps for zone 1, effective 1 October 2026. These are not housing aid amounts.
| Household | Tenant | Shared tenant |
|---|---|---|
| Single person | 336,97 € | 252,73 € |
| Couple without dependants | 406,40 € | 304,80 € |
| 1 dependant | 459,32 € | 344,49 € |
| 2 dependants | 525,97 € | 394,48 € |
| 3 dependants | 592,62 € | 444,47 € |
Specific rules apply to rooms and supported accommodation. Source: CAF — housing aid rates.
Estimate your housing aid in Saint-Germain-en-Laye
Your actual rent, resources and circumstances determine the estimate.
Student
Prepare your rent excluding charges, scholarship status and accommodation type. University residences may use specific rules.
Couple
Include the resources of both partners and declare that you live together. A couple is not treated as two unrelated flatmates.
Family
Declare the people dependent on your household and your resources. Household size alone does not determine your entitlement.
Indicative estimate. CAF or MSA determines your entitlement.
APL application in Saint-Germain-en-Laye: the 4 steps
4 steps to get your housing aid
Check your eligibility
Before submitting your application, estimate your APL entitlements in Saint-Germain-en-Laye using our simulator. In zone 1, rent ceilings and income conditions are specific.
Simulate my entitlementsGather your documents
For your APL application with the CAF Yvelines, you will need: your signed lease, an ID, a bank account number (RIB), and the additional documents requested in your personal account.
Submit your application online
Visit the CAF Yvelines website to create your account and submit your application. The process is entirely online, 7 days a week.
Access the CAF YvelinesReceive your first payment
After validation of your application by the CAF Yvelines, check your personal account for the payment date. Processing times depend on your file and any missing documents.
FAQ: APL in Yvelines
Everything you need to know before running your simulation
1 How much APL can I get in Saint-Germain-en-Laye in 2026?
In Saint-Germain-en-Laye, housing aid depends on rent excluding charges, household circumstances and resources over the last 12 months, updated quarterly. Specific rules apply to students. The rent cap for a single tenant in zone 1 is €336,97, effective 1 October 2026. It is not an aid amount. CAF or MSA determines entitlement.
2 How do I apply for APL in Yvelines?
Apply through caf.fr or MSA, depending on your scheme. Prepare your lease, identity documents and bank details. Check the exact documents and processing status in your personal account. The lease start date alone does not guarantee a payment date.
3 Why is Saint-Germain-en-Laye in APL zone 1?
APL zoning uses an official municipality register. In Saint-Germain-en-Laye, zone 1 determines the rent caps used in the calculation. It cannot be inferred from population or department alone. Check the municipality in the official Service-Public tool.
4 Is the APL zone in Saint-Germain-en-Laye the same as a high-demand housing zone?
No. APL zoning is used to calculate housing aid. The high-demand classification uses a separate official register. Check your municipality in the Service-Public notice-period simulator.
5 Is APL paid directly to the landlord in Saint-Germain-en-Laye?
APL can be paid either directly to the tenant's bank account, or to the landlord who deducts it from the rent (known as "third-party payment"). In social housing (HLM), payment to the landlord is almost always the default. In private housing, the landlord requests this via the rent certificate. In Saint-Germain-en-Laye, as everywhere in France, the landlord chooses the payment method when setting up the file with the CAF Yvelines.
6 What benefits can be combined with APL in Yvelines?
APL can be combined with RSA, the activity bonus, family allowances, AAH (disability allowance), and student scholarships. However, it cannot be combined with ALF or ALS — the CAF automatically assigns the most advantageous aid. The Yvelines department may offer additional support (FSL — housing solidarity fund) for security deposits or rent arrears.
Contact the CAF Yvelines
For any questions about your APL entitlements in Saint-Germain-en-Laye, contact your departmental CAF directly.
Learn more about APL
Deepen your knowledge of housing aid
Understand your APL amount
Examples with explicit assumptions
APL income and rent caps
Distinguish rent caps from aid amounts
How APL is calculated
Parameters used to estimate housing aid
Student APL
Eligibility, amounts and procedures for students
APL for shared housing
How to get APL when sharing accommodation
Retiree APL
Housing aid for retired people
All cities in zone 1
Rates and caps for APL zone 1
Compare APL around Saint-Germain-en-Laye
Calculate your housing aid in neighbouring cities of Saint-Germain-en-Laye
Estimate your housing aid in Saint-Germain-en-Laye
Free, official 2026 scale. Your amount appears on screen; the itemised calculation and the documents to gather are sent by email, in a single message.
Non-binding estimate. Visit caf.fr for your exact entitlements.
Updated March 2026 — CAF 2026 rates. Non-binding estimate. Visit caf.fr for your exact entitlements.