95111

Sannois

Set up your business in Sannois (95111), Val-d'Oise: economic data, elected officials and support from CEEVO.

Photo: Spedona · CC BY-SA 3.0 (new tab) · Wikimedia Commons (new tab)

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Communauté d'Agglomération Val Parisis Canton Argenteuil-1 INSEE code 95582

  • 26,924Population
  • 2,279Businesses
  • 11,925Working population
  • 0Offers

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Overview

Sannois (95111) is a municipality in Val-d'Oise (INSEE code 95582), located in the canton of Argenteuil-1. It belongs to the intercommunality “Communauté d'Agglomération Val Parisis”. It has 26 924 inhabitants, of whom 20,6 % are under 15. The working population numbers 13 312 people, of whom 11 925 are in employment; the estimated unemployment rate is 11,3 %. 2 279 establishments are recorded (sources: INSEE, CEEVO). 4 business parks (ZAE) are recorded in the area. The “local employment” indicator is 5 010. The average income per tax household is 35 020 €. The business property tax rate (CFE, excluding ZAE) is 28,08 %. Published offers can be viewed in the catalogue; the full listing is reserved for registered users.

Location

Key figures

The key facts about Sannois, compared with Val-d'Oise and Île-de-France.

At a glance

  • 97%FibreArcep, Ma connexion internet, T2 2026
  • €3,233/m²Housing price (apartments)DVF, DGFiP / Etalab, 2025
  • 2 haFarmlandInstitut Paris Région, MOS, 2025
  • 4,255Private-sector jobsUrssaf, 31/12/2025
Location in Val-d'Oise

Comparison with the surrounding area

Sannois against the reference areas. Each chart gives its values, source and reference year.

Population

View the chart data
Population
hab.
Sannois26,924 hab.
Average town: CA Val Parisis19,393 hab.
Average town: Val-d'Oise7,004 hab.

Source : Insee, population census, RP 2023. Population of an average town: total divided by the number of towns.

Average income per tax household

View the chart data
Average income per tax household
€
Sannois35,020 €
CA Val Parisis36,986 €
Val-d'Oise32,489 €
Île-de-France42,208 €

Source : DGFiP, income tax by local authority (IRCOM), IRCOM 2025. Groups of towns: average of the towns weighted by population; Val-d'Oise and Île-de-France: official values.

Unemployment rate

View the chart data
Unemployment rate
%
Sannois11.3 %
CA Val Parisis10.3 %
Val-d'Oise11.8 %
Île-de-France11.2 %

Source : Insee, population census, RP 2023. Groups of towns: average of the towns weighted by the active population; Val-d'Oise and Île-de-France: official values (ages 15 to 64).

Share of under-15s

View the chart data
Share of under-15s
%
Sannois20.6 %
CA Val Parisis21.1 %
Val-d'Oise21.2 %
Île-de-France18.7 %

Source : Insee, population census, RP 2023. Groups of towns: average of the towns weighted by population; Val-d'Oise and Île-de-France: official values.

Establishments per 1,000 inhabitants

View the chart data
Establishments per 1,000 inhabitants
Establishments per 1,000 inhabitants
Sannois84.6
CA Val Parisis78.2
Val-d'Oise79.4
Île-de-France118.5

Source : Insee, business demography (SIDE), 31/12/2024. Active establishments relative to population; Val-d'Oise and Île-de-France: official totals.

CFE rate (business property tax)

View the chart data
CFE rate (business property tax)
%
Sannois28.08 %
CA Val Parisis28.08 %
Val-d'Oise25.56 %

Source : DGFiP, local direct taxation (REI), REI 2025. Town rates; groups of towns and Val-d'Oise are the simple average of the towns (no official overall value).

Premises connectable to fibre

View the chart data
Premises connectable to fibre
%
Sannois98.5 %
CA Val Parisis98.6 %
Val-d'Oise98.2 %

Source : Arcep, broadband and ultra-fast broadband observatory, Q2 2026. Connectable premises relative to all premises; groups of towns: sum of the towns.

Census unemployment rate (declared by census respondents, ages 15-64): it is higher by construction than Insee's localised unemployment rate (annual average, ILO definition), which is not available at municipal level.

Economic DNA

Breakdown of establishments

View the chart data
Breakdown of establishments
Breakdown of establishments%
Tertiary1,96786.3 %
Industry662.9 %
Construction24610.8 %

Source : CEEVO town database, from Insee (SIDE), 31/12/2024. Active establishments by sector.

Detailed figuresArea, businesses, population, taxes, income, workforce

Territory

Number of ZAE
4
Total floor area of ZAE
4,56 hA
Available floor area in ZAE
0
No. of location offers (source: CEEVO)
0

Establishments (sources: INSEE, CEEVO)

Industry
66
Construction
246
Commerce / Services
1,967
Agriculture
-
Total establishments
2,279

Population

Total population
26,924 inhabitant(s)
Share of under-15s (%)
20.6 %
Share of over-75s (%)
6.5 %
Share of the population (over 15, not in education) with a qualification above Bac +2
39.3 %
Share of the population (over 15, not in education) with no qualification
17.3 %
Share of graduates relative to non-graduates
2.26

Overall taxes

Undeveloped land property tax
109.51 %
Developed land property tax
45.07 %
CFE (Cotisation Foncière des Entreprises, excluding ZAE)
28.08 %

Overall 2025 rate applicable in the municipality: municipality, intercommunal authority, syndicates, special equipment taxes, GEMAPI tax and special annual additional tax (CFE: outside business zones) — DGFiP, REI 2025.

Income

Average income per tax household
35,020.0 €
Compared with the Val-d'Oise average
20 %
Share of taxable households
53 %

Working population - Jobs

Working population
13,312
In employment
11,925
Unemployed (INSEE definition)
1,510
Estimated unemployment rate
11.3 %
Local jobs
5,010

Sources : CEEVO town database ; listings published in the CEEVO catalogue on 11/10/2026.

Photographs of Sannois

Freely licensed photographs from Wikimedia Commons: author, licence and link under each picture.

Offers available in Sannois

Premises available in Sannois from Val-d'Oise commercial agents.

No offers currently available in this municipality.

Subscribe : Business premises and land in Sannois (95111) All RSS feeds

Other municipalities in the same inter-municipal body

News from Sannois

Sale prices of business premises

Industrial, commercial or similar premises

2,613 €/m² median price per m², over 2021-2025 · 36 sales

Half of the sales are between €1,164 and €3,285 per m² (quartiles). Median surface sold: 100 m².

Change in the median price from 2021 to 2025: −2 %.

Comparison: 25 % above the Val-d'Oise median (€2,090 per m² over 2021-2025).

Median price and number of sales per year
YearMedian price (€/m²)Sales
20211,45010
20223,0218
20233,5866
20243,1507
20251,4165

Building plots (all uses)

547 €/m² median price per m², over 2021-2025 · 11 sales

Half of the sales are between €478 and €675 per m² (quartiles). Median surface sold: 376 m².

Comparison: 28 % above the Val-d'Oise median (€426 per m² over 2021-2025).

Median price and number of sales per year
YearMedian price (€/m²)Sales
20216406
2023fewer than 5 sales< 5
2024fewer than 5 sales< 5

Actual sale values, excluding rents. One sale = one transaction for a single premises, excluding housing, off-plan sales and bundled sales; outliers removed. The price includes the underlying land.

Source: DVF, DGFiP / Etalab. Sales from 2021 to 2025 (latest transaction on Dec. 31, 2025, files published on May 18, 2026). No median is published below 5 sales (statistical confidentiality).

Land and zoning

Brownfield sites listed (Cartofriches)

  • 1Brownfield sites listed (Cartofriches)
  • 1Brownfield with a project
Brownfield sites listed (Cartofriches)
SiteStatusTypeLand unit area (m²)
95582_37540Brownfield with a projectUnknown type1,519

The area is that of the land unit (all parcels of the same owner), not of the brownfield itself: it is not an available surface.

Cartofriches, the national brownfield map (Cerema)

Planning document

Local urban plan (PLU), approved on Oct. 2, 2025

Read the document on the Géoportail de l'urbanisme

Zones giving access to aid or exemptions

  • Priority urban district (QPV) 2024 Businesses setting up there may, under conditions, benefit from tax exemptions and support.Districts: Bas Des Aulnaies - Carreaux Fleuris - Fontaine Bertin

Grants, taxes and costs: what these schemes offer

Sources: Cerema, Cartofriches (updated April 7, 2025); Géoportail de l'urbanisme; ANCT; AFR 2022-2027 zoning.

Business premises started (construction starts)

Floor area started by type of premises
Type of premisesTotal 2016-2024 (m²)Yearly average (m²)
Offices627
Retail and trade2,606290
Total business premises2,668296

Floor area of construction starts, by actual date. The latest years are incomplete (late reporting) and 2025 is not available. Authorised floor areas are not published: their series is not reliable.

Source: SDES, Sitadel database (September 2026 file), premises started from 2016 to 2024.

Private-sector employment

  • 4,255Private-sector employees, end of 2025
  • 3,846Private-sector employees, end of 2015
  • +10.6 %Change between 2015 and 2025
  • 568Employing establishments
  • 19 of 183Rank in Val-d'Oise

Private-sector employees by broad sector

View the chart data
Private-sector employees by broad sector
employees
Other market services (excl. temp work)1,540 employees
Trade921 employees
Non-market services687 employees
Construction617 employees
Industry237 employees
Hotels and restaurants161 employees
Temporary work92 employees

Source : Urssaf, headcount at 31 December 2025.

Employees under the general social-security scheme, excluding agriculture and household employees.

Source: Urssaf, open.urssaf.fr (ODbL licence), private-sector headcount at 31 December 2025.

Companies based in Sannois

All 14 companies with 50 or more employees ›

All companies based in Val-d'Oise ›

Access

Population reachable by car

  • 2,700,000Within 30 min · inhabitants
  • 10,900,000Within 60 min · inhabitants
  • 16,500,000Within 120 min · inhabitants

Rounded orders of magnitude: theoretical travel times without traffic; population living in France.

Station in the municipality

Sannois

Lines: Transilien J

Sources: implantation95.com calculation from IGN Géoplateforme isochrones (network of Oct. 1, 2026), Insee 2023 legal populations and Filosofi 2021; stations: Île-de-France Mobilités (updated Oct. 2, 2026).

Facilities and services in the municipality

Education

  • 15nursery and primary schoolsof which 1 private
  • 4collèges (lower secondary)1,946 pupils
  • 3lycées (upper secondary)729 pupils
  • 6nurseries (under 3)

Lycées (3)

  • Lycée Nature et Services Saint-Jean Privé, sous contrat etablissement agricole
    • vocational track
    • apprenticeship
    • boarding
    Rond-point de la Tour du Mail, 95110 · 01 34 11 46 60 · Onisep page
  • Lycée Notre-Dame Privé, contrat d'association toutes classes · 624 pupils
    • general track
    • technological track
    • European or oriental-language section (unspecified)
    106 boulevard Charles de Gaulle, 95110 · 01 39 81 22 98 · Onisep page
  • Lycée professionnel Saint-Jean Privé, contrat d'association toutes classes · 105 pupils
    • vocational track
    • apprenticeship
    • boarding
    school-business office : 0950805J@ac-versailles.fr
    5 vocational qualifications

    BMA ébéniste · Bac pro artisanat et métiers d'art option marchandisage visuel · CAP menuisier fabricant · CAP ébéniste · CAP équipier polyvalent du commerce

    Rond-point de la Tour du Mail, 95110 · 01 34 11 46 48 · Onisep page

The full “Education, higher education and research” section

See on the map : education

Sources: Ministry of Education, education directory (2 Oct 2026); Onisep; Ministry of Higher Education, regional atlas; Insee, permanent facilities database 2025 (nurseries).

Sport

  • 1swimming pools
  • 44sports halls
  • 15stadiums and pitches
  • 8tennis courts
  • 32other facilities

100 sports facilities (37 per 10,000 inhabitants) · 5,738 sports licences · 35 clubs

Most common types of facility : Bassin de natation (1), Boulodrome (4), Court de tennis (7), Divers équipements Sports de nature (1), Equipement d'activités de forme et de santé (3), Equipement d'athlétisme (9)

Major sports venues (1)

  • COMPLEXE SPORTIF JEAN CLAUDE BOUTTIER Structure Artificielle d'Escalade · 1,019 stand seats

All sport in Val-d'Oise: map, clubs, athletes

See on the map : sport

Sources: Ministry of Sport, census of sports facilities (Data ES); Paris 2024, Games preparation centres; INJEP, licences and clubs; Wikidata.

Health

  • 4community health centres
  • 9pharmacies
  • 13general practitioners
  • 15dentists
  • 12nurses

See on the map : health

Sources: IGN, BD TOPO (hospitals and clinics, 19 June 2026); Insee, permanent facilities database 2025 (health centres, emergency departments, practitioners and pharmacies).

Transport

  • 1railway stations

Railway stations (1)

  • Sannois Transilien J

See on the map : transport

Sources: Île-de-France Mobilités, stops and associated lines (2 Oct 2026, ODbL licence); IGN, BD TOPO (airfields and ports).

Culture

  • 1libraries and media libraries
  • 1performance venues

See on the map : culture

Source: Insee, permanent facilities database 2025 (facilities at 1 January 2025).

Shops and public services

  • 1markets
  • 1shopping centres

See on the map : shops and public services

Source: IGN, BD TOPO (markets, shopping centres, waste centres, water and sanitation, 19 June 2026).

Culture

4 cultural venues and facilities on record

Culture, media and cinema in Val-d'Oise

Digital and energy

  • 98.5%of premises can connect to fibre (Q2 2026)
  • 22licensed 5G sites
  • 0.3 MWof grid-connected generating capacity · 67 generating installations

Mobile sites by operator (30/06/2026)

  • Orange : 6 4G · 5 5G
  • SFR : 5 4G · 4 5G
  • Bouygues Telecom : 6 4G · 6 5G
  • Free Mobile : 7 4G · 7 5G

Sources: Arcep, ANFR, Agence ORE, Enedis and RTE open data; reference years given on the section page.

The full “Digital and energy infrastructure” section

Electricity consumption and gas

  • 76,353Electricity consumption (MWh) (year 2024)
  • 3,266of which industry (MWh)
  • 26,842of which services (MWh)
  • Gas network : GRDF
  • Heat network : yes

Source: open data from the network operators (Enedis, GRDF, RTE). A missing value is not published (statistical confidentiality).

Ecology and transition

  • 0.3MW of connected solar capacity (67 installations)
  • Heat networks
  • 45EV charging points

Ecology and transition · Check the risks at an address (Géorisques)

Major public projects in Sannois

All key players in Val-d'Oise ›

Key people

All key people ›

News from Sannois

All news from Sannois ›

Headlines and short quotations are reproduced as published by the local authorities, in their original language. The full article is on the source's website.

Official social media accounts

Sources : official website (new tab), checked on 02/10/2026

Contacts

Contacts for Sannois: town hall, canton, constituency and département.

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