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Municipality profile · department 35

Property in Coësmes

In Coësmes (35), the median price per m² stands at €1,720/m² (DVF 2025 release).

Median price per m² in 2025
€1,720/m²
-1.5% over one year
Sales in 2025
15
flats and houses
Population
1,426
-0.8% since 2012
Median living standard
€24,930
per year per consumption unit

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

The municipality has 1,426 inhabitants, a change of -3.3% ; median living standard there reaches €24,930 a year.

Prices and sales

In 2025, a dwelling in Coësmes sold at a median price of €1,720/m², -1.5% over one year.

Median price per m² over time in Coësmes

Median price per m² in CoësmesHouse: 1,206 in 2014, 1,720 in 20251,2001,4001,6001,800201520172019202120232025€1,720/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 +42.6%.

View the data
Median price per m² by property type
YearFlatHouseSales included
2014—€1,206/m²12
2015—€1,154/m²9
2016—€1,128/m²17
2017—€1,244/m²25
2018—€1,366/m²17
2019—€1,176/m²19
2020—€1,293/m²24
2021—€1,410/m²22
2022—€1,624/m²24
2023—€1,435/m²17
2024—€1,747/m²9
2025—€1,720/m²15

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

Number of sales per year in Coësmes

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

15 sales recorded in 2025. The peak of the period remains 2017, with 25 sales.

View the data
Sales and median price by year
YearSalesMedian price per m²Total sales value
201617€1,128/m²€1.8M
201725€1,244/m²€3.1M
201817€1,333/m²€2.0M
201919€1,176/m²€2.4M
202024€1,317/m²€3.6M
202122€1,418/m²€3.5M
202224€1,629/m²€4.1M
202317€1,435/m²€3.1M
20249€1,747/m²€1.3M
202515€1,720/m²€2.5M

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

Median price per m² in 2025€1,720/m²
House — median price per m²€1,720/m²
Sales in 202515
Average of the previous five years19
Total sales value in 2025€2.5M
Sales recorded over ten years210

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 Coësmes, 2025
Property typeMedian rent (€/m²)Range (€/m²)
Flats, all sizes9.27.3 – 11.7
Flats with 1-2 rooms10.07.9 – 12.7
Flats with 3 or more rooms7.96.2 – 10.1
Houses7.96.0 – 10.3

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 Coësmes 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 Coësmes

  • A1910.2%
  • B2111.3%
  • C3921.0%
  • D5127.4%
  • E2915.6%
  • F2211.8%
  • G52.7%

186 homes surveyed. 14.5% of the surveyed housing stock is rated F or G — that is 27 homes already affected, or about to be, by the letting ban. Including band E, targeted for 2034, the share rises to 30.1%.

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 Coësmes

Change in EPC (DPE) assessments in CoësmesA, B and C labels: 41 in 2022, 31 in 2025 ; F and G labels: 16 in 2022, 23 in 20250204060202220232024202531%23%
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 rising: 16.2% in 2022, 22.9% in 2025.

View the data
Assessments carried out by year and by band
YearABCDEFGTotal
20223571244237
20234811874042
20249291763248
2025353977135

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

Coësmes has 628 dwellings at the 2023 census, of which 88.7% are main residences; the rest is split between second homes and vacant dwellings.

What are dwellings used for?

Housing categories in CoësmesMain residences : 90.4%Second homes and occasional dwellings : 2.2%Vacant dwellings : 7.4%
  • Main residences90.4%
  • Second homes and occasional dwellings2.2%
  • Vacant dwellings7.4%
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 CoësmesTenants : 24.1%Owner-occupiers : 75.9%
  • Tenants33924.1%
  • Owner-occupiers1,07075.9%
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 +6.2% while the population changed by -0.8%: homes are being built faster than the commune gains residents, a sign of smaller households, second homes or rising vacancy.

Dwellings (2023)628
Households557
Housing: Coësmes compared with its département, its region and France
CoësmesIlle-et-VilaineBretagneFrance
Main residences202390.3%+7.9 pts vs France86.7%80.2%82.4%
Second homes20232.2%−7.6 pts vs France7.2%13.1%9.8%
Vacant dwellings20237.4%≈ France6.0%6.6%7.8%
Residents who own their home75.9%+15.1 pts vs France65.6%70.7%60.8%
Tenant residents24.1%−13.3 pts vs France33.3%28.1%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)21
Share of private housing stock3.4%

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 Coësmes

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
202101010
20225712
20235914
2024033
2025033
2026*066

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

Population1,426
Households557
People per household2.56

Change in the population of Coësmes

Population trendPopulation: 1,191 in 1968, 1,426 in 20231,0001,2001,400196819821999201220231,426 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 -0.8%.

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

Age breakdown

Age breakdown of the population of CoësmesUnder 18 : 25.1%18 to 24 : 6.3%25 to 29 : 6.0%30 and over : 62.7%
  • Under 1835025.1%
  • 18 to 24886.3%
  • 25 to 29836.0%
  • 30 and over87762.7%
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 CoësmesEmployed workers : 57.9%Unemployed : 4.5%Retired people : 23.7%Pupils and students : 6.7%Other economically inactive : 7.1%
  • Employed workers65257.9%
  • Unemployed514.5%
  • Retired people26723.7%
  • Pupils and students756.7%
  • Other economically inactive807.1%
Each resident aged 15 or over is counted once, 2023 census.

Source: INSEE

Coësmes compared with its département, its region and France
CoësmesIlle-et-VilaineBretagneFrance
Population trend2012-2023-0.8%−5.2 pts vs France+11.2%+6.6%+4.4%
Median age202339.9 years−2.6 yrs vs France40.0 years44.9 years42.5 years
Share aged under 25202332.7%+3.9 pts vs France31.4%27.6%28.8%
Share aged 65 and over202315.8%−5.5 pts vs France18.9%23.8%21.3%
People per household20232.6+18% vs France2.22.12.2

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 Coësmes, a household has 2.56 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: Coësmes compared with its département, its region and France
CoësmesIlle-et-VilaineBretagneFrance
Median living standard (per year)2023€24,930−4% vs France€26,670€26,240€25,920
Unemployment rate (aged 15-64)20237.2%−3.8 pts vs France8.8%9.3%11.0%
Activity rate (aged 15-64)202377.6%+1.9 pt vs France76.5%75.7%75.7%
Share of retired people (aged 15 and over)202323.7%−4.4 pts vs France26.1%32.3%28.1%
Share of pupils and students (aged 15 and over)20236.7%−0.9 pt vs France9.2%7.2%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 Coësmes

Number of businesses located in CoësmesBusinesses: 43 in 2014, 65 in 202440506020142016201820202022202465
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.

65 businesses in 2024, compared with 43 in 2014: +51.2% over the period.

View the data
Number of businesses by year
YearBusinesses
201443
201542
201641
201739
201845
201945
202042
202149
202255
202355
202465

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

Businesses: Coësmes compared with its département, its region and France
CoësmesIlle-et-VilaineBretagneFrance
Number of businesses202465103,662303,5206,437,729
Change in the number of businesses2019-2024+44.4%+19.4 pts vs France+29.9%+27.1%+25.0%
Businesses per 1,000 inhabitants202445.6−53% vs France92.588.097.3

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 CoësmesSole traders : 54.5%SAS and SASU : 11.8%SARL and EURL : 12.4%Civil companies, including SCI : 19.7%Other forms : 1.7%
  • Sole traders9754.5%
  • SAS and SASU2111.8%
  • SARL and EURL2212.4%
  • Civil companies, including SCI3519.7%
  • Other forms31.7%
Businesses with an open establishment in Coësmes, 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 35134. A postcode may cover several communes: in a village, these figures describe the wider catchment area, not the commune alone.

From 2021 to 2025, 81 registrations for 6 insolvency proceedings.

View the data
Registrations and insolvency proceedings
YearRegistrationsInsolvency proceedings
2021141
2022110
2023261
2024183
2025121
2026*154

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 39.44% in Coësmes.

Rate voted by the commune37.64%
Intercommunal body, syndicates and special taxes1.80%
Overall rate on built properties (total)39.44%
Household waste collection tax (TEOM)7.07%
Overall rate on undeveloped land65.07%
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 Coësmes, its property tax (taxe foncière) is €1,500 × 39.44% = €592 a year.

On top of this comes the household waste collection tax (TEOM), calculated on the same base: €1,500 × 7.07% = €106. 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
202137.27%38.64%6.41%
202237.27%38.84%6.41%
202337.27%38.98%6.98%
202437.64%39.44%7.07%

Between 2021 and 2024, the overall rate changed by +0.80 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
Nurse
Shops
BakeryGrocery or convenience store
Education and early years
Nursery or primary school
Services and transport
Post office or postal point

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

Fixed internet

  • Dwellings and premises connectable to fibre98.3%
    764 connectable out of 777

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 Coësmes, 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

Lowlevel 2 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

Significant potentiallevel 3 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, the seller or landlord must inform the buyer or tenant. Good ventilation and a sealed ground floor are usually enough to reduce exposure.

Classified installations (ICPE)

19in 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

6in 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 Coësmes

Map of classified installations and underground cavities in CoësmesClassified installations — ALAIN FrédéricClassified installations — AVEL BREIZHClassified installations — TOUFFE (VHU ILLICITE)Classified installations — MG GARAGEClassified installations — EARL DU MATZClassified installations — BREIZH LAITClassified installations — SAS LE BREIL NERETClassified installations — DUTERTRE EmmanuelClassified installations — GAEC MARSOLLIERClassified installations — GAEC LEBRETONClassified installations — SARL LES HAROUILLERESClassified installations — BREIZH LAITClassified installations — GAEC DES SENTIERSClassified installations — SCEA LA HERMANIEREClassified installations — EARL LA CHEVRONNIEREClassified installations — EARL LE JAUNAYClassified installations — GAEC DES TROIS VALLEESClassified installations — DES ONDESClassified installations — EARL LE FRESNE MOISONUnderground cavities — Coesmes_1Underground cavities — Coesmes_2Underground cavities — Coesmes_3Underground cavities — Coesmes_4Underground cavities — Coesmes_5Underground cavities — Coesmes_6
  • Classified installations19
  • Underground cavities6

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 — Coësmes

What is the price per m² in Coësmes?
The median recorded price is €1,720/m² — that is €800/m² for a flat and €1,720/m² for a house (source DVF/INSEE, data as of October 2, 2026).
How many inhabitants does Coësmes have?
Coësmes has 1,426 inhabitants, with a change of -3.3% (INSEE census).
What share of energy-inefficient homes are there in Coësmes?
30.1% of surveyed homes are rated E, F or G on the energy certificate (source ADEME).
What is the property tax rate in Coësmes?
The overall property tax rate on built properties is 39.4%, of which 37.6% is voted by the commune (source DGFiP).

The same data, put to work.

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