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Municipality profile · department 76

Property in Gonfreville-l'Orcher

In Gonfreville-l'Orcher (76), the median price per m² stands at €2,412/m² (DVF 2025 release).

Median price per m² in 2025
€2,412/m²
+4.0% over one year
Sales in 2025
40
-13.0% over one year
flats and houses
Population
8,916
-2.6% since 2012
Median living standard
€23,080
per year per consumption unit

Public data cross-referenced (DGFiP, INSEE, ADEME), recorded on October 2, 2026.

The municipality has 8,916 inhabitants, a change of -1.6% ; median living standard there reaches €23,080 a year.

Prices and sales

In 2025, a dwelling in Gonfreville-l'Orcher sold at a median price of €2,412/m², +4.0% over one year.

Median price per m² over time in Gonfreville-l'Orcher

Median price per m² in Gonfreville-l'OrcherFlat: 2,134 in 2014, 2,260 in 2021 ; House: 1,735 in 2014, 2,402 in 20252,000201520172019202120232025€2,402/m²€2,260/m²
FlatHouse
Median price per square metre of recorded sales, by property type and by year.

Over 7 years, the median flat price has changed by +5.9%.

View the data
Median price per m² by property type
YearFlatHouseSales included
2014€2,134/m²€1,735/m²46
2015€2,200/m²€1,661/m²65
2016€2,182/m²€1,892/m²53
2017—€1,835/m²50
2018€2,105/m²€2,030/m²65
2019—€1,965/m²62
2020—€2,117/m²54
2021€2,260/m²€2,166/m²68
2022—€2,281/m²55
2023—€2,139/m²57
2024—€2,159/m²46
2025—€2,402/m²39

Source: DVF (DGFiP), land value request data · recorded on October 2, 2026

Number of sales per year in Gonfreville-l'Orcher

Sales of flats and houses recorded each year. This is the market's thermometer: a price is only meaningful if sales are actually completed.

40 sales in 2025, -13.0% compared with 2024 (46). The peak of the period remains 2021, with 68 sales.

View the data
Sales and median price by year
YearSalesMedian price per m²Total sales value
201653€2,032/m²€7.4M
201752€1,845/m²€8.7M
201865€2,034/m²€10.5M
201962€1,979/m²€10.4M
202054€2,117/m²€9.2M
202168€2,167/m²€12.0M
202255€2,288/m²€10.6M
202358€2,170/m²€11.3M
202446€2,320/m²€8.6M
202540€2,412/m²€7.8M

Source: DVF (DGFiP), land value request data · recorded on October 2, 2026

Median price per m² in 2025€2,412/m²
House — median price per m²€2,402/m²
Sales in 202540
Average of the previous five years56
Total sales value in 2025€7.8M
Sales recorded over ten years666

How to read these figures. The median price splits the market in two: half of sales were made below it, half above. It withstands the few extreme sales that distort a small commune better than the average does.

The data come from DVF, the file of sales actually recorded by notaries, not from advertised prices, which are asking prices rather than agreed ones. Only sales of a flat or a house with a known floor area are counted. DVF does not cover Alsace-Moselle, which is governed by the land register (livre foncier).

Source: DVF (DGFiP) · recorded on October 2, 2026

Rents

Reference rents (2025)

Median advertised rent per m² by property type in Gonfreville-l'Orcher, 2025
Property typeMedian rent (€/m²)Range (€/m²)
Flats, all sizes12.710.2 – 15.8
Flats with 1-2 rooms13.910.7 – 18.1
Flats with 3 or more rooms10.58.5 – 13.0
Houses11.88.9 – 15.7

How to read this table. This is a predicted advertised rent, including service charges, per square metre per month — not the rent signed in the lease. The range brackets the estimate: most listings in the municipality fall within it. These estimates are recalculated every year with a new model, so two releases cannot be compared with each other.

Estimations ANIL, à partir des données du Groupe SeLoger et de leboncoin · Rent map 2025

Energy performance of the housing stock

Breakdown of homes in Gonfreville-l'Orcher by energy performance certificate (EPC) band. Since the loi Climat & Résilience (Climate and Resilience Act), it is this band that determines whether a home may be let.

Breakdown of energy performance certificates in Gonfreville-l'Orcher

  • A371.2%
  • B2648.8%
  • C1,55952.2%
  • D66722.3%
  • E36512.2%
  • F571.9%
  • G401.3%

2,989 homes surveyed. 3.2% of the surveyed housing stock is rated F or G — that is 97 homes already affected, or about to be, by the letting ban. Including band E, targeted for 2034, the share rises to 15.5%.

Rental ban timeline
  1. 2025Gbanned
  2. 2028Fbanned
  3. 2034Ebanned

2021 loi Climat & Résilience (Climate and Resilience Act) — applies to new leases.

Counts and shares by band, across all energy surveys recorded in the municipality.

Source: ADEME, energy performance certificate database · recorded on October 2, 2026

Change in EPC (DPE) assessments in Gonfreville-l'Orcher

Change in EPC (DPE) assessments in Gonfreville-l'OrcherA, B and C labels: 54 in 2022, 61 in 2025 ; F and G labels: 5.1 in 2022, 2.9 in 2025050202220232024202561%2.9%
A, B and C labelsF and G labels
Among the assessments carried out each year: the share of well-rated dwellings (A, B, C) and that of thermal sieves (F, G).

The share of F and G labels among assessments is falling: 5.1% in 2022, 2.9% in 2025.

View the data
Assessments carried out by year and by band
YearABCDEFGTotal
2022222284148891019574
2023133261919686196971
20241819926815612175774
2025242241142492379
2026*07122313644204

* current year, incomplete

Source: ADEME, energy performance certificate database · recorded on October 2, 2026

Why this breakdown matters. A dwelling rated G can no longer be let under a new lease since 1st January 2025; F will follow in 2028 and E in 2034. A commune whose stock is largely rated F or G therefore faces a wall of renovation work, or an exit from the rental market.

Note: these figures cover surveyed homes, not the entire stock. A survey is only required on sale or letting, so homes occupied for a long time are under-represented.

The trend line starts in 2022: the assessment changed its calculation method in July 2021, and earlier labels cannot be compared with later ones. It describes the dwellings assessed during the year (those being sold, let or just renovated), not an annual census of the housing stock.

Housing stock

Gonfreville-l'Orcher has 4,099 dwellings at the 2023 census, of which 94.6% are main residences; the rest is split between second homes and vacant dwellings.

What are dwellings used for?

Housing categories in Gonfreville-l'OrcherMain residences : 94.4%Second homes and occasional dwellings : 0.7%Vacant dwellings : 4.9%
  • Main residences94.4%
  • Second homes and occasional dwellings0.7%
  • Vacant dwellings4.9%
A vacant dwelling is one unoccupied on the census date: awaiting sale, letting or works, or simply left empty.

Source: INSEE, census

Who lives in main residences?

Housing tenure of residents of Gonfreville-l'OrcherTenants : 56.4%Owner-occupiers : 43.1%Housed free of charge : 0.5%
  • Tenants4,97256.4%
  • Owner-occupiers3,79843.1%
  • Housed free of charge410.5%
Share of RESIDENTS according to whether their household owns, rents or is housed free of charge, not the share of dwellings.

Source: INSEE, census

Between 2012 and 2023, the housing stock grew by +11.7% while the population changed by -2.6%: homes are being built faster than the commune gains residents, a sign of smaller households, second homes or rising vacancy.

Dwellings (2023)4,099
Households3,877
Housing: Gonfreville-l'Orcher compared with its département, its region and France
Gonfreville-l'OrcherSeine-MaritimeNormandieFrance
Main residences202394.5%+12.1 pts vs France87.9%82.4%82.4%
Second homes20230.7%−9.1 pts vs France4.4%10.1%9.8%
Vacant dwellings20234.9%−2.9 pts vs France7.7%7.5%7.8%
Residents who own their home43.1%−17.7 pts vs France57.3%62.7%60.8%
Tenant residents56.4%+19.0 pts vs France41.5%36.0%37.4%

Under each value for the municipality: its gap with France. For a rate, the gap is in percentage points (12.4% vs 7.8% = +4.6 pts); for an amount or a ratio, as a percentage of the national value.

Long-term empty dwellings

Private dwellings vacant for more than two years (2025)30
Share of private housing stock1.8%

Why vacancy of more than two years. A dwelling that stands empty for a few months is waiting for a buyer, a tenant or the end of building work: that is the normal breathing of the market. Empty for more than two years, it has left the market — a run-down property, a blocked inheritance, an owner who will neither let nor sell. We do not publish total vacancy from the same file: its national level varies by a third from one year to the next without the housing stock having changed, which rules out any comparison.

Source: LOVAC (Cerema, DGFiP), vacant dwellings in the private housing stock · recorded on October 2, 2026

Dwellings authorised for construction in Gonfreville-l'Orcher

Dwellings for which a building permit has been granted, by year of authorisation. An authorised dwelling is not yet built: allow two to three years before delivery.
View the data
Dwellings authorised by year
YearFlats (multi-dwelling buildings)Detached housesTotal
2021077
2022055
2023033
2024033
2025011
2026*56561

Source: Sit@del, ministry responsible for housing · recorded on October 2, 2026

Sources: INSEE (census), Sit@del · recorded on October 2, 2026

Population and households

Population8,916
Households3,877
People per household2.30

Change in the population of Gonfreville-l'Orcher

Population trendPopulation: 8,636 in 1968, 8,916 in 20239,00010 k196819821999201220238,916 inhab.
Municipal population at each census. INSEE does not publish a population every year: the points are the census years available.

Between 2012 and 2023, the population changed by -2.6%.

Source: INSEE, population census · recorded on October 2, 2026

Age breakdown

Age breakdown of the population of Gonfreville-l'OrcherUnder 18 : 22.8%18 to 24 : 7.9%25 to 29 : 5.2%30 and over : 64.1%
  • Under 181,99022.8%
  • 18 to 246907.9%
  • 25 to 294535.2%
  • 30 and over5,60064.1%
Population aged 2 and over, 2023 census.

Source: INSEE

What do people aged 15 and over do?

Employment status of residents aged 15 and over in Gonfreville-l'OrcherEmployed workers : 46.6%Unemployed : 9.1%Retired people : 27.2%Pupils and students : 6.9%Other economically inactive : 10.2%
  • Employed workers3,33546.6%
  • Unemployed6509.1%
  • Retired people1,95127.2%
  • Pupils and students4966.9%
  • Other economically inactive73210.2%
Each resident aged 15 or over is counted once, 2023 census.

Source: INSEE

Gonfreville-l'Orcher compared with its département, its region and France
Gonfreville-l'OrcherSeine-MaritimeNormandieFrance
Population trend2012-2023-2.6%−7.0 pts vs France+0.6%+0.7%+4.4%
Median age202340.8 years−1.7 yr vs France41.9 years43.9 years42.5 years
Share aged under 25202332.1%+3.3 pts vs France30.1%28.5%28.8%
Share aged 65 and over202318.7%−2.6 pts vs France21.2%23.0%21.3%
People per household20232.3+6% vs France2.12.12.2

Under each value for the municipality: its gap with France. For a rate, the gap is in percentage points (12.4% vs 7.8% = +4.6 pts); for an amount or a ratio, as a percentage of the national value.

Why the number of people per household matters. A household is everyone who shares the same dwelling. The fewer people it has, the more demand shifts towards small homes — studios and one-bedroom flats, sought by people living alone, students and retirees; the more it has, the more demand shifts towards family homes with three or more rooms.

In Gonfreville-l'Orcher, a household has 2.30 people on average, compared with 2.17 in France: more families, so demand leans more towards larger homes.

Source: INSEE, population census · recorded on October 2, 2026

Income and employment

Income and employment: Gonfreville-l'Orcher compared with its département, its region and France
Gonfreville-l'OrcherSeine-MaritimeNormandieFrance
Median living standard (per year)2023€23,080−11% vs France€24,940€25,200€25,920
Poverty rate202320.0%+4.1 pts vs France16.6%14.7%15.9%
Unemployment rate (aged 15-64)202316.3%+5.3 pts vs France12.5%11.1%11.0%
Activity rate (aged 15-64)202371.9%−3.8 pts vs France74.0%75.3%75.7%
Share of retired people (aged 15 and over)202327.2%−0.9 pt vs France29.2%31.3%28.1%
Share of pupils and students (aged 15 and over)20236.9%−0.7 pt vs France7.7%6.8%7.6%

Under each value for the municipality: its gap with France. For a rate, the gap is in percentage points (12.4% vs 7.8% = +4.6 pts); for an amount or a ratio, as a percentage of the national value.

How to read these figures. The standard of living is a household's disposable income (salaries, pensions and benefits, after tax) divided by its number of consumption units: the first adult counts as 1, other people aged 14 or over as 0.5, and each child as 0.3. It allows a single person and a family to be compared.

The poverty rate is the share of residents whose standard of living is below 60% of the national median. INSEE does not publish it for small communes, for reasons of statistical confidentiality: its absence is not a zero.

The unemployment rate here is the census one: people who declare themselves without work and looking for it, among the economically active aged 15 to 64. It is higher than INSEE's quarterly rate, which follows a stricter international definition.

Sources: INSEE (census, Filosofi) · recorded on October 2, 2026

Economic fabric

Number of businesses located in Gonfreville-l'Orcher

Number of businesses located in Gonfreville-l'OrcherBusinesses: 464 in 2014, 539 in 2024500201420162018202020222024539
Businesses in market activities, excluding agriculture, located in the commune and counted at 31 December each year. This is a stock: it shows the size of the local economy, not how much it is being renewed.

539 businesses in 2024, compared with 464 in 2014: +16.2% over the period.

View the data
Number of businesses by year
YearBusinesses
2014464
2015472
2016479
2017479
2018467
2019475
2020475
2021512
2022518
2023540
2024539

Source: INSEE, business demography information system · recorded on October 2, 2026

Businesses: Gonfreville-l'Orcher compared with its département, its region and France
Gonfreville-l'OrcherSeine-MaritimeNormandieFrance
Number of businesses202453987,435249,4236,437,729
Change in the number of businesses2019-2024+13.5%−11.5 pts vs France+24.5%+24.2%+25.0%
Businesses per 1,000 inhabitants202460.5−38% vs France69.374.597.3

Under each value for the municipality: its gap with France. For a rate, the gap is in percentage points (12.4% vs 7.8% = +4.6 pts); for an amount or a ratio, as a percentage of the national value.

In what form do businesses operate?

Legal forms of businesses in Gonfreville-l'OrcherSole traders : 40.3%SAS and SASU : 29.5%SARL and EURL : 15.0%Civil companies, including SCI : 11.0%Other forms : 4.2%
  • Sole traders37140.3%
  • SAS and SASU27229.5%
  • SARL and EURL13815.0%
  • Civil companies, including SCI10111.0%
  • Other forms394.2%
Businesses with an open establishment in Gonfreville-l'Orcher, by legal form. A sole trader operates in their own name — this is the status of micro-entrepreneurs; an SCI most often holds property assets rather than running an activity. This count is broader than the INSEE one above, which only includes market businesses with an economic activity.

Sources: INSEE (SIRENE register), INPI (national business register) · recorded on October 2, 2026

Registrations and insolvency proceedings

* current year, incomplete

On one side, announcements of registrations, business creations and takeovers; on the other, court-ordered safeguard, recovery and liquidation proceedings. Legal notices published under postcode 76700. A postcode may cover several communes: in a village, these figures describe the wider catchment area, not the commune alone.

From 2021 to 2025, 508 registrations for 257 insolvency proceedings.

View the data
Registrations and insolvency proceedings
YearRegistrationsInsolvency proceedings
202111154
20228355
202310548
202410649
202510351
2026*8339

Source: BODACC, official bulletin of civil and commercial announcements · recorded on October 2, 2026

Sources: INSEE, BODACC · recorded on October 2, 2026

Local taxation

In 2024, the overall property tax rate on built properties is 44.42% in Gonfreville-l'Orcher.

Rate voted by the commune44.31%
Intercommunal body, syndicates and special taxes0.11%
Overall rate on built properties (total)44.42%
Household waste collection tax (TEOM)5.49%
Overall rate on undeveloped land67.25%
Worked example

A dwelling with a cadastral rental value of €3,000 has a tax base of €1,500: the law sets it at half the rental value. In Gonfreville-l'Orcher, its property tax (taxe foncière) is €1,500 × 44.42% = €666 a year.

On top of this comes the household waste collection tax (TEOM), calculated on the same base: €1,500 × 5.49% = €82. A landlord can recover it from their tenant; the property tax (taxe foncière), by contrast, remains payable by the owner.

These amounts are before the collection charges retained by the State. Your property's rental value is shown on your property tax (taxe foncière) notice.

Property tax rate by year
YearCommunal rateOverall rate on built propertiesHousehold waste
202144.31%44.42%4.01%
202244.31%44.43%4.01%
202344.31%44.42%4.01%
202444.31%44.42%5.49%

The overall rate remained stable between 2021 and 2024.

How to read these rates. Property tax (taxe foncière) is calculated by multiplying the property's tax base by the overall rate: this is the figure to compare between communes, not the communal rate alone. Since 2021, départements no longer collect property tax on buildings; their former share is included in the communal rate.

A high rate does not mean a high tax. The cadastral rental value is not the market rent: it is an administrative estimate based on 1970 rents, revalued each year by a national coefficient. In a town with old, low rental values, a 50% rate can cost less than a 25% rate elsewhere.

Source: DGFiP, local taxation for individuals (2024 scale) · recorded on October 2, 2026

Living environment

Services and shops in the commune

Health
General practitionerPharmacyDentistNurseHousing for older people
Shops
BakeryGrocery or convenience storeSupermarketHypermarketButcher'sPetrol station
Education and early years
Nursery or early-years childcareNursery or primary schoolCollège (lower secondary school)
Services and transport
Post office or postal pointFrance servicesPolice or gendarmerie

How to read this list. It shows the services for which at least one establishment is recorded in the commune. A service that does not appear is not necessarily absent: INSEE does not locate every facility with the same precision, and the list only includes the main ones.

Source: INSEE, permanent facilities database 2024

Public transport

74 public transport stops are located in the municipality, or 8.3 stops per 1,000 inhabitants.

Public transport stops in Gonfreville-l'Orcher

Map of public transport stops in Gonfreville-l'Orcher
  • Stops74

Outline of the commune, north at the top.

Each dot is a bus, tram, metro or train stop. The map shows where the network is dense: it says nothing about frequency of service.

Source: transport.data.gouv.fr, scheduled timetables of networks · recorded on October 2, 2026

Stops by network

  • Agrégat des réseaux urbains et interurbains de Normandie71
  • Réseau urbain LiA3

Fixed internet

  • Dwellings and premises connectable to fibre95.4%
    4,698 connectable out of 4,922

Connectable means that optical fibre reaches the building or the street and a subscription can be taken out, not that the dwelling is already subscribed.

Source: ARCEP, fibre rollout · situation as at June 2026

Electric cars

Of the 255 passenger cars registered in the commune in 2024:

  • Electric cars13.7%
  • Plug-in hybrids7.1%

Why this share may look high. These are cars registered during the year, not all those on the road: electric vehicles weigh far more in recent purchases than in the overall fleet. Company and rental vehicles are also registered at the company's address, which inflates the share in communes that host head offices or rental firms.

Source: Ministry of Ecological Transition, passenger car registrations · recorded on October 2, 2026

Natural and technological risks

The risks identified by the State in the territory of Gonfreville-l'Orcher, what they mean, and what they change for a property.

Clay shrink-swell

Low exposurelevel 1 out of 3

Clay soil swells when wet and shrinks when it dries. These movements crack houses with shallow foundations, especially after a drought.

For a property: At this level, no soil survey is required by law.

Seismicity

Very lowlevel 1 out of 5

France is divided into five seismicity zones, from 1 (very low) to 5 (high, in the Antilles).

For a property: In this zone, no seismic rules apply to detached houses.

Radon potential

Low potentiallevel 1 out of 3

Radon is a natural radioactive gas that rises from granitic and volcanic soils and can build up in poorly ventilated rooms, especially on ground floors and in basements.

For a property: At this level, no particular information is required when selling or letting.

Risk prevention plans

4in the commune

The commune is covered by a prevention plan for: flooding, ground movement, technological risk. This is a document issued by the prefect that delimits the exposed zones.

For a property: In the delimited zones, building or extending may be prohibited or subject to requirements. The plan does not necessarily cover the whole commune: only the risk statement provided before a sale or letting says whether the address is affected.

Upper-tier Seveso sites

8in the commune

An upper-tier Seveso site is an industrial installation that stores or uses large quantities of hazardous substances.

For a property: A prevention perimeter regulates planning around each site: protective works may be required of existing dwellings there.

Classified installations (ICPE)

74in the commune

A classified installation is an activity that the law subjects to declaration or authorisation because it may cause nuisance: factory, warehouse, livestock farm, petrol station, waste recycling centre, boiler room.

For a property: Their number mainly reflects the commune's economic activity: most pose no danger to neighbours. What matters is their nature and their distance from the property.

Underground cavities

21in the commune

Former quarries, cellars, galleries or military works recorded beneath the commune.

For a property: A cavity can cause localised subsidence or collapse of the ground. Before buying, check whether the plot is close to a known cavity.

Installations and cavities recorded in Gonfreville-l'Orcher

Map of classified installations and underground cavities in Gonfreville-l'OrcherClassified installations — ZURCHER Eric (Transports)Classified installations — OISSEL TRANSPORTSClassified installations — Pollution d'un fossé Avenue Lemignot-GOClassified installations — ENVIE 2E LE HAVREClassified installations — LAFARGE BETONSClassified installations — BOUYGUES TRAVAUX PUBLICSClassified installations — SVMClassified installations — PROMAT SécuritéClassified installations — ADRAHClassified installations — Bâtiments limitrophes CHEVRON ORONITEClassified installations — GUILLAUME CONTROLE AUTOClassified installations — IMAGIE'N'AIRClassified installations — MAGNUM NORMANDIEClassified installations — M-LOC NORMANDIEClassified installations — BTH COUVERTUREClassified installations — GNC AGENCEMENTClassified installations — LYRECOClassified installations — TECHNIC PEINTUREClassified installations — DUBOCAGEClassified installations — ENTREPOSAGE HAVRAISClassified installations — BATEAU DE BROTONNEClassified installations — RECREACTIONClassified installations — EMBALLAGE INDUSTRIE CONCEPTClassified installations — MATERIAUX BAIE DE SEINEClassified installations — ASPELL POLYMERESClassified installations — SAFRAN NACELLESClassified installations — DISTILLERIE HAUGUEL SAClassified installations — REVIVALClassified installations — TANK SEREP NORMANDIEClassified installations — SEVSClassified installations — SAS GONFREVILDISClassified installations — GIRPIClassified installations — ETABLISSEMENTS RICHIERO SAClassified installations — NORMANPLASTClassified installations — MICHEL LAVAGEClassified installations — CHIMIREC VALRECOISE SASClassified installations — IPODEC NORMANDIEClassified installations — TOFFOLUTTIClassified installations — YARA FRANCEClassified installations — LOGISTIQUE ESTUAIREClassified installations — TANK SOLUTIONS NORMANDIEClassified installations — ADVANTAILClassified installations — LE HAVRE SEINE METROPOLEClassified installations — NORMANDIE TERRE D'ENERGIE (SAS)Classified installations — NORFRIGOClassified installations — SOCIETE D'EXPLOITATION DE CHAUFFAGE DE GONFREVILLE L'ORCHERClassified installations — CAP GELClassified installations — BAUDIN CHATEAUNEUFClassified installations — DEPOT DECHETS Gonfreville l'OrcherClassified installations — OSILUBClassified installations — ADELINE SARLClassified installations — ENGIE ENERGIE SERVICESClassified installations — PPG DISTRIBUTIONClassified installations — BATAILLEClassified installations — TRAPIL Gonfreville l'OrcherClassified installations — BIOSTEAMClassified installations — PROFFINAClassified installations — PMS CITERNESClassified installations — ENTREPRISE PHILIPPE LASSARATClassified installations — AIR LIQUIDE FRANCE INDUSTRIEClassified installations — ILSClassified installations — LORANY CONSEILSClassified installations — AJM 832Classified installations — GIE GONFREVILLE L'ORCHERClassified installations — HERVE THERMIQUEUnderground cavities — 76305 - 001Underground cavities — 76305 - 002Underground cavities — 76305 - 003Underground cavities — 76305 - 021Underground cavities — 76305 - 022Underground cavities — 76305 - 023Underground cavities — 76305 - 024Underground cavities — 76305 - 025Underground cavities — 76305 - 027Underground cavities — 76305 - 028Underground cavities — 76305 - 029Underground cavities — 76305 - 035Underground cavities — 76305 - 036Underground cavities — 76305 - 037Underground cavities — 76305 - 047Underground cavities — 76305 - 051Underground cavities — 76305 - 052Underground cavities — 76305 - 063Underground cavities — 76305 - 065Underground cavities — 76305 - 066Underground cavities — 76305 - Ville 1Seveso sites — TOTALENERGIES RAFFINAGE FRANCESeveso sites — CHANE TERMINAL LE HAVRESeveso sites — YARA FRANCESeveso sites — SIGALNORSeveso sites — TOTALENERGIES RAFFINAGE FRANCESeveso sites — CHEVRON ORONITE SASSeveso sites — NORGALSeveso sites — PPG COATINGS SASeveso sites — CHANE TERMINAL LE HAVRE
  • Classified installations74
  • Underground cavities21
  • Seveso sites9

Outline of the commune, north at the top.

Location of known classified installations, Seveso sites and underground cavities.

Source: Géorisques, Ministry of Ecological Transition · recorded on October 2, 2026

A prevention plan is not a bad sign in itself. It shows that the risk is mapped and regulated; it is its absence for a known hazard that should raise questions.

This page describes the commune, not an address. Before a sale or a letting, the seller or landlord must provide a risk statement drawn up for the property. You can obtain one free of charge for any address at georisques.gouv.fr.

Source: Géorisques, Ministry of Ecological Transition · recorded on October 2, 2026

Frequently asked questions — Gonfreville-l'Orcher

What is the price per m² in Gonfreville-l'Orcher?
The median recorded price is €2,412/m² — that is €2,783/m² for a flat and €2,402/m² for a house (source DVF/INSEE, data as of October 2, 2026).
How many inhabitants does Gonfreville-l'Orcher have?
Gonfreville-l'Orcher has 8,916 inhabitants, with a change of -1.6% (INSEE census).
What share of energy-inefficient homes are there in Gonfreville-l'Orcher?
15.5% of surveyed homes are rated E, F or G on the energy certificate (source ADEME).
What is the property tax rate in Gonfreville-l'Orcher?
The overall property tax rate on built properties is 44.4%, of which 44.3% is voted by the commune (source DGFiP).

The same data, put to work.

What the observatory publishes, the five MORYA tools put to use.