---
title: "Hélène Billery"
id: "685"
type: "collaborateur"
slug: "helene-billery-2"
published_at: "2025-12-29T09:27:13+00:00"
modified_at: "2026-03-31T15:17:38+00:00"
url: "https://augustdeboustg.wpenginepowered.com/en/collaborateur/helene-billery-2/"
markdown_url: "https://augustdeboustg.wpenginepowered.com/en/collaborateur/helene-billery-2.md"
taxonomy_language:
  - "English"
taxonomy_post_translations:
  - "pll_6952497182847"
taxonomy_tax_expertise:
  - "Administrative and Public Law Litigation"
  - "Environmental and ESG Litigation"
  - "Environmental and Urban Planning Law"
  - "Public Law"
  - "Public Procurement"
  - "Real Estate and Construction"
  - "Real Estate, Construction, and Land Use Litigation"
taxonomy_tax_fonction:
  - "Partner"
taxonomy_tax_gouvernance:
  - "Partners’ Assembly"
taxonomy_tax_langue:
  - "English"
  - "French"
taxonomy_tax_localisation:
  - "Paris"
---

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: 06H 45M 08.9173S

Vertical : -16° 42' 58.017"

# Hélène Billery

0

0

- Position Partner
- Email hbillery@august-debouzy.com
- Phone Number +33145618838
- Languages English, French
- Location Paris
- Barreau Barreau de Paris

## Practice Areas

- [Administrative and Public Law Litigation](https://augustdeboustg.wpenginepowered.com/en/expertise/administrative-and-public-law-litigation/)
- [Environmental and ESG Litigation](https://augustdeboustg.wpenginepowered.com/en/expertise/environmental-and-esg-litigation/)
- [Environmental and Urban Planning Law](https://augustdeboustg.wpenginepowered.com/en/expertise/environmental-and-urban-planning-law/)
- [Public Law](https://augustdeboustg.wpenginepowered.com/en/expertise/public-law/)
- [Public Procurement](https://augustdeboustg.wpenginepowered.com/en/expertise/public-procurement/)
- [Real Estate and Construction](https://augustdeboustg.wpenginepowered.com/en/expertise/real-estate-and-construction/)
- [Real Estate, Construction, and Land Use Litigation](https://augustdeboustg.wpenginepowered.com/en/expertise/real-estate-construction-and-land-use-litigation/)

0

## Biography

Hélène Billery advises public and private entities in all areas of business public law. She has specific expertise in advisory and litigation matters in environmental law, urban planning law, public procurement law, and public health law.

Committed to sharing her knowledge, Hélène lectured on administrative law and introduction to law at the universities of Paris I and Paris IV for several years, and now regularly organizes and leads training sessions on public law for our clients.

Hélène began her career as a lawyer with the business law firm Sygna Partners. She then developed expertise in litigation and health and biotechnology law at law firms in Montreal and New York.

She was admitted to the Paris Bar in 2008 and joined our firm the same year.

> “Hélène Billery is a brilliant lawyer specializing in public law. Hélène listens very closely to her clients and provides a high-quality service.” - Legal 500

## Background

: 06H 45M 08.9173S

Vertical : -16° 42' 58.017"

- 2004 Paris 1 - Université Panthéon Sorbonne | Master's degree (DEA) in Comparative Public Law
- 2003 AMU - Université d'Aix-Marseille III | Post-graduate degree (Maîtrise) in Public Law
- 2003 UCM - Universidad Complutense de Madrid | Post-graduate degree (Maîtrise) in Public Law

## *Latest* News

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[07/01/25 Communiqués de Presse 5 min August Debouzy Strengthens Its Full-Service Client Offering with Two New Partners: Jennifer Hinge and Hélène Billery](https://augustdeboustg.wpenginepowered.com/en/communiques-de-presse/august-debouzy-strengthens-its-full-service-client-offering-with-two-new-partners-jennifer-hinge-and-helene-billery/)

[23/05/24 Legal Article 5 min Economic and Administrative Simplification Bill: What’s New in Public Procurement?](https://augustdeboustg.wpenginepowered.com/en/legal-article/economic-and-administrative-simplification-bill-whats-new-in-public-procurement/)

[09/11/23 Deal 1 min August Debouzy advises AESC on the construction of the Douai electric car battery gigafactory, due to open in 2025](https://augustdeboustg.wpenginepowered.com/en/deal/august-debouzy-advises-aesc-on-the-construction-of-the-douai-electric-car-battery-gigafactory-due-to-open-in-2025/)

[04/04/23 Deal 2 min August Debouzy assisted Ingka Centres with the acquisition of the Italie 2 shopping center, its high-street extension Italik and the Apollo office complex](https://augustdeboustg.wpenginepowered.com/en/deal/august-debouzy-assisted-ingka-centres-with-the-acquisition-of-the-italie-2-shopping-center-its-high-street-extension-italik-and-the-apollo-office-complex/)

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