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Municipality profile · department 02

Property in Oulchy-le-Château

In Oulchy-le-Château (02), the median price per m² stands at €1,504/m² (DVF 2025 release).

Median price per m² in 2025
€1,504/m²
+1.5% over one year
Sales in 2025
11
flats and houses
Population
785
-5.3% since 2012
Median living standard
€23,910
per year per consumption unit

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

The municipality has 785 inhabitants, a change of -4.6% ; median living standard there reaches €23,910 a year.

Prices and sales

In 2025, a dwelling in Oulchy-le-Château sold at a median price of €1,504/m², +1.5% over one year.

Median price per m² over time in Oulchy-le-Château

Median price per m² in Oulchy-le-ChâteauHouse: 1,111 in 2014, 1,504 in 20251,0001,2001,400201520172019202120232025€1,504/m²
Median price per square metre of recorded sales, by property type and by year.

Over 11 years, the median house price has changed by +35.4%.

View the data
Median price per m² by property type
YearFlatHouseSales included
2014—€1,111/m²5
2015—€1,370/m²11
2016—€1,085/m²6
2017—€1,329/m²7
2018—€1,000/m²11
2019—€1,286/m²11
2020—€1,419/m²7
2021—€1,250/m²9
2022—€1,048/m²12
2023—€1,139/m²6
2024—€1,361/m²6
2025—€1,504/m²11

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

Number of sales per year in Oulchy-le-Château

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

11 sales recorded in 2025. The peak of the period remains 2022, with 12 sales.

View the data
Sales and median price by year
YearSalesMedian price per m²Total sales value
20166€1,140/m²€681,100
20177€1,329/m²€964,500
201811€1,000/m²€1.0M
201911€1,286/m²€951,000
20207€1,419/m²€1.2M
20219€1,250/m²€1.0M
202212€1,074/m²€1.2M
20236€1,207/m²€685,900
20246€1,481/m²€836,200
202511€1,504/m²€1.3M

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

Median price per m² in 2025€1,504/m²
House — median price per m²€1,504/m²
Sales in 202511
Average of the previous five years8
Total sales value in 2025€1.3M
Sales recorded over ten years102

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 Oulchy-le-Château, 2025
Property typeMedian rent (€/m²)Range (€/m²)
Flats, all sizes11.49.3 – 14.0
Flats with 1-2 rooms12.710.2 – 15.8
Flats with 3 or more rooms9.98.0 – 12.2
Houses9.37.2 – 12.1

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 Oulchy-le-Château 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 Oulchy-le-Château

  • A21.0%
  • B52.6%
  • C3518.1%
  • D6835.2%
  • E4121.2%
  • F115.7%
  • G3116.1%

193 homes surveyed. 21.8% of the surveyed housing stock is rated F or G — that is 42 homes already affected, or about to be, by the letting ban. Including band E, targeted for 2034, the share rises to 43.0%.

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 Oulchy-le-Château

Change in EPC (DPE) assessments in Oulchy-le-ChâteauA, B and C labels: 23 in 2023, 19 in 2025 ; F and G labels: 40 in 2023, 8 in 2025020402023202519%8%
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: 39.6% in 2023, 8.0% in 2025.

View the data
Assessments carried out by year and by band
YearABCDEFGTotal
2023111014631853
2025021236191575

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

Oulchy-le-Château has 393 dwellings at the 2023 census, of which 83.8% are main residences; the rest is split between second homes and vacant dwellings.

What are dwellings used for?

Housing categories in Oulchy-le-ChâteauMain residences : 85.6%Second homes and occasional dwellings : 3.6%Vacant dwellings : 10.8%
  • Main residences85.6%
  • Second homes and occasional dwellings3.6%
  • Vacant dwellings10.8%
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 Oulchy-le-ChâteauTenants : 30.4%Owner-occupiers : 65.7%Housed free of charge : 3.9%
  • Tenants23030.4%
  • Owner-occupiers49965.7%
  • Housed free of charge303.9%
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 +3.4% while the population changed by -5.3%: homes are being built faster than the commune gains residents, a sign of smaller households, second homes or rising vacancy.

Dwellings (2023)393
Households330
Housing: Oulchy-le-Château compared with its département, its region and France
Oulchy-le-ChâteauAisneHauts-de-FranceFrance
Main residences202385.6%+3.2 pts vs France86.7%88.6%82.4%
Second homes20233.6%−6.2 pts vs France3.4%4.0%9.8%
Vacant dwellings202310.8%+3.0 pts vs France9.9%7.4%7.8%
Residents who own their home65.7%+4.9 pts vs France63.9%60.3%60.8%
Tenant residents30.4%−7.0 pts vs France34.5%38.3%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)18
Share of private housing stock5.5%

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 Oulchy-le-Château

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
2021044
2022011
2023011
2024000
2025000
2026*011

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

Population785
Households330
People per household2.38

Change in the population of Oulchy-le-Château

Population trendPopulation: 721 in 1968, 785 in 202375080085019681982199920122023785 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 -5.3%.

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

Age breakdown

Age breakdown of the population of Oulchy-le-ChâteauUnder 18 : 19.4%18 to 24 : 5.7%25 to 29 : 3.8%30 and over : 71.1%
  • Under 1814919.4%
  • 18 to 24435.7%
  • 25 to 29303.8%
  • 30 and over54671.1%
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 Oulchy-le-ChâteauEmployed workers : 45.9%Unemployed : 8.6%Retired people : 34.5%Pupils and students : 4.6%Other economically inactive : 6.5%
  • Employed workers29945.9%
  • Unemployed568.6%
  • Retired people22434.5%
  • Pupils and students304.6%
  • Other economically inactive426.5%
Each resident aged 15 or over is counted once, 2023 census.

Source: INSEE

Oulchy-le-Château compared with its département, its region and France
Oulchy-le-ChâteauAisneHauts-de-FranceFrance
Population trend2012-2023-5.3%−9.7 pts vs France-3.2%+0.3%+4.4%
Median age202345.7 years+3.2 yrs vs France43.4 years40.8 years42.5 years
Share aged under 25202326.7%−2.1 pts vs France29.0%31.0%28.8%
Share aged 65 and over202324.8%+3.5 pts vs France22.0%19.4%21.3%
People per household20232.4+10% vs France2.22.32.2

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 Oulchy-le-Château, a household has 2.38 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: Oulchy-le-Château compared with its département, its region and France
Oulchy-le-ChâteauAisneHauts-de-FranceFrance
Median living standard (per year)2023€23,910−8% vs France€23,360€23,950€25,920
Unemployment rate (aged 15-64)202315.9%+4.9 pts vs France15.3%13.8%11.0%
Activity rate (aged 15-64)202376.6%+0.9 pt vs France74.0%73.3%75.7%
Share of retired people (aged 15 and over)202334.5%+6.4 pts vs France30.3%26.8%28.1%
Share of pupils and students (aged 15 and over)20234.6%−3.0 pts vs France6.3%8.1%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 Oulchy-le-Château

Number of businesses located in Oulchy-le-ChâteauBusinesses: 49 in 2014, 50 in 202440455020142016201820202022202450
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.

50 businesses in 2024, compared with 49 in 2014: +2.0% over the period.

View the data
Number of businesses by year
YearBusinesses
201449
201545
201642
201741
201842
201937
202038
202142
202245
202344
202450

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

Businesses: Oulchy-le-Château compared with its département, its region and France
Oulchy-le-ChâteauAisneHauts-de-FranceFrance
Number of businesses20245030,539405,6146,437,729
Change in the number of businesses2019-2024+35.1%+10.1 pts vs France+20.8%+25.0%+25.0%
Businesses per 1,000 inhabitants202463.7−35% vs France58.467.797.3

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 Oulchy-le-ChâteauSole traders : 49.2%SAS and SASU : 16.9%SARL and EURL : 10.2%Civil companies, including SCI : 20.3%Other forms : 3.4%
  • Sole traders5849.2%
  • SAS and SASU2016.9%
  • SARL and EURL1210.2%
  • Civil companies, including SCI2420.3%
  • Other forms43.4%
Businesses with an open establishment in Oulchy-le-Château, 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 02210. A postcode may cover several communes: in a village, these figures describe the wider catchment area, not the commune alone.

From 2021 to 2025, 214 registrations for 44 insolvency proceedings.

View the data
Registrations and insolvency proceedings
YearRegistrationsInsolvency proceedings
2021558
20224712
20233210
2024319
2025495
2026*2710

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 48.23% in Oulchy-le-Château.

Rate voted by the commune44.62%
Intercommunal body, syndicates and special taxes3.61%
Overall rate on built properties (total)48.23%
Household waste collection tax (TEOM)9.24%
Overall rate on undeveloped land58.77%
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 Oulchy-le-Château, its property tax (taxe foncière) is €1,500 × 48.23% = €723 a year.

On top of this comes the household waste collection tax (TEOM), calculated on the same base: €1,500 × 9.24% = €139. 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
202144.62%47.63%9.24%
202244.62%47.71%9.24%
202344.62%47.73%9.24%
202444.62%48.23%9.24%

Between 2021 and 2024, the overall rate changed by +0.60 point.

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 practitionerPharmacyNurseHousing for older people
Shops
BakeryGrocery or convenience storeSupermarket
Education and early years
Nursery or primary 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

3 public transport stops are located in the municipality, or 3.8 stops per 1,000 inhabitants.

Public transport stops in Oulchy-le-Château

Map of public transport stops in Oulchy-le-Château
  • Stops3

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

  • Réseau scolaire de l'Aisne (02)2
  • Réseau interurbain - Aisne (02)1

Fixed internet

  • Dwellings and premises connectable to fibre99.6%
    450 connectable out of 452

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

Natural and technological risks

The risks identified by the State in the territory of Oulchy-le-Château, 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

1in the commune

The commune is covered by a prevention plan for: flooding. 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.

Classified installations (ICPE)

1in 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

16in 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 Oulchy-le-Château

Map of classified installations and underground cavities in Oulchy-le-ChâteauClassified installations — EARL DE L'OURCQUnderground cavities — Rue PotelUnderground cavities — Rue Quinquet de MonjourUnderground cavities — Rue du Docteur ManichonUnderground cavities — Avenue de la GareUnderground cavities — Rue PoupelaineUnderground cavities — Rue de la FournelleUnderground cavities — Avenue de PrieuréUnderground cavities — Rue des maraisUnderground cavities — Rue des MancesUnderground cavities — Rue PetiteUnderground cavities — Ruelle du MoulinUnderground cavities — Rue des FossésUnderground cavities — Ruelle des Remparts
  • Classified installations1
  • Underground cavities16

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 — Oulchy-le-Château

What is the price per m² in Oulchy-le-Château?
The median recorded price is €1,504/m² — that is €1,504/m² for a house (source DVF/INSEE, data as of October 2, 2026).
How many inhabitants does Oulchy-le-Château have?
Oulchy-le-Château has 785 inhabitants, with a change of -4.6% (INSEE census).
What share of energy-inefficient homes are there in Oulchy-le-Château?
43.0% of surveyed homes are rated E, F or G on the energy certificate (source ADEME).
What is the property tax rate in Oulchy-le-Château?
The overall property tax rate on built properties is 48.2%, of which 44.6% is voted by the commune (source DGFiP).

The same data, put to work.

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