Renovation of your home in Copenhagen.
Copenhagen Municipality is Denmark's most populous municipality with nearly 670,000 residents and continued growth. As the country's unrivalled primate city — in economy, culture, education and employment — Copenhagen has Scandinavia's most complex housing market. Apartment buildings dominate completely, and renovation of flats, co-operative housing and owner-occupied flats is the everyday reality for hundreds of thousands of homeowners.
Copenhagen in brief — context for your renovation.
apartmentThe apartment city — 90% flats
90% of homes are apartments. Detached houses are a curiosity, terraced houses a rarity. Renovation in Copenhagen is about flats, co-operative housing and owner-occupied flats in buildings from the 1850s to the 1980s. The building's collective decisions are decisive.
location_cityContinuous population growth
The municipality grew from 500,000 to nearly 670,000 in 20 years and is expected to surpass 700,000 by 2040. This pushes property prices up and creates sustained demand — but also raises the bar for renovation quality and energy standards.
local_fire_departmentHOFOR covers 98% with district heating
HOFOR (hofor.dk) supplies almost the entire Copenhagen Municipality with district heating — approximately 98% of heat needs. The district heating is undergoing a green transition and is already one of Europe's cleanest. Almost all homes in Copenhagen are connected.
Your housing type.
Owner-occupied flat in older building (1850–1940)
45% of homes in Copenhagen — approx. 140,000 dwellings (source: Statistics Denmark 2025)
Classic brick apartment buildings, the working-class neighbourhood's canonical buildings and courtyard wings. These flats are sought-after and expensive — but require ongoing renovation. The building determines much: collective decisions on roof, façade and drainage stacks cost more per owner than in a detached house.
What's typical?
- — Brick façade from 1880–1930
- — High ceilings and original detailing
- — HOFOR district heating
- — Shared courtyard and stairwells
- — Owners' association or co-operative housing association
Common weaknesses
- — Worn drainage stacks and drainage systems
- — Leaking roof or zinc edges
- — Insufficient insulation in loft flats
- — Outdated electrical installation (old socket type)
Typical costs
New bathroom
120,000–350,000 kr
Copenhagen prices are 20–30% above the national average. Complex access, high ceilings and plumbing in older systems push the price up. . Source: Bolius
New kitchen
100,000–400,000 kr
Large variation from flat-pack solutions to bespoke joinery. Copenhagen pricing. . Source: Bolius
Loft flat — insulation and roof lights
150,000–500,000 kr
Insulation of eaves spaces and installation of roof lights in loft flat. Often requires a collective decision. . Source: Bolius
Shared roof replacement (per m²)
1,200–2,500 kr/m²
Felt or zinc roof including scaffolding. Shared among owners. Copenhagen pricing including parking fees and logistics. . Source: Bolius
Do you need an architect?
Probably not necessary for:
- — Interior renovation of a single apartment
- — New bathroom and kitchen
Architect recommended or required for:
- — Apartment mergers
- — Rooftop terrace projects
- — Façade changes and balconies
- — Larger collective renovations
Owner-occupied flat in concrete construction (1960–1980)
25% of homes in Copenhagen — approx. 77,000 dwellings (source: Statistics Denmark 2025)
Post-war housing blocks — many in Brønshøj, Vanløse, Valby and Amager. Typically better insulated than older buildings, but with worn bathrooms, kitchens and façades. Many social housing units in this category.
What's typical?
- — Concrete element façade or brick from the 1960s–70s
- — HOFOR district heating
- — Flat or slightly sloping roofs
- — Shared installations
Common weaknesses
- — Worn flat roofs
- — Thermal bridges in concrete elements
- — Outdated bathroom and kitchen
- — Common areas in need of renovation
Typical costs
Do you need an architect?
Probably not necessary for:
- — Interior apartment renovation
Architect recommended or required for:
- — Façade renovations
- — Roof renovations
- — Lift installations
Co-operative flat in older building
18% of homes in Copenhagen — approx. 55,000 dwellings (source: Statistics Denmark 2025)
Co-operative housing makes up approximately 18% of Copenhagen's housing stock — a share unique to Copenhagen and the major Danish cities. Co-operative housing is organisationally different from owner-occupied flats: you own a share in the association, not the property. This fundamentally shapes the renovation process — the association has great influence.
What's typical?
- — Older buildings from 1880–1940
- — HOFOR district heating
- — Shared operation and maintenance via the board
- — Co-operative value based on valuation
Common weaknesses
- — The association must approve major alterations
- — Shared roof, façade and drainage stacks decided collectively
- — Co-operative value limits financing options
- — Risk of large shared assessments
Typical costs
New bathroom in co-operative flat
110,000–300,000 kr
Remember to obtain the association's approval before plumbing work. Connection to shared drainage stacks requires coordination with the property manager. . Source: Bolius
New kitchen in co-operative flat
100,000–350,000 kr
Copenhagen pricing. Check whether electrical work requires the association's approval. . Source: Bolius
Do you need an architect?
Probably not necessary for:
- — Surface renovation
- — New paint and floors
Architect recommended or required for:
- — Alterations affecting load-bearing walls
- — Moving plumbing installations
- — Apartment mergers
Local conditions in Copenhagen.
local_fire_department District heating — HOFOR
HOFOR (hofor.dk) supplies almost the entire Copenhagen Municipality with district heating and covers approximately 98% of heat needs. The heat is produced from waste, biomass and large heat pumps and is undergoing continuous green transition. Almost all apartments in Copenhagen are connected.
account_balance Heritage value
Large parts of Copenhagen's inner city and the working-class neighbourhoods are heritage-listed or fully listed. Façade changes, window replacement and balconies often require municipal approval. Always check with Copenhagen Municipality and possibly the Danish Agency for Culture and Palaces before external changes.
Look up your address at the Danish Heritage Agency's FBB register
assignment Building permit in Copenhagen
Apply for a building permit via Byg & Miljø. Interior renovation of a single apartment normally does not require a building permit. Apartment mergers, loft conversions and façade changes require a permit.
savings Grants for energy renovation
Subsidies for energy renovation are available via Sparenergi.dk. Many co-operative housing associations apply jointly for support for façade renovation and roof insulation.
Copenhagen in figures.
Data from Statistics Denmark (2025) and the Danish Heritage Agency — context for your property.
Dwellings total
4.8% vacancy rate
Listed buildings
Source: Danish Heritage Agency FBB
Social housing units
Source: Landsbyggefonden
CO₂ emissions by sector
Energy
511,194 tonnes CO₂
Transport
222,919 tonnes CO₂
Chemical processes
40,056 tonnes CO₂
Agriculture and land use
-1,069 tonnes CO₂
Waste disposal and biogas
45,592 tonnes CO₂
Wastewater
15,846 tonnes CO₂
Frequently asked questions
about renovation in Copenhagen.
A complete renovation of a 75 m² apartment in Copenhagen — new bathroom, kitchen, floors, paint and electrical — typically costs 400,000–900,000 kr. Prices are 20–30% above the national average due to high trades prices, logistics and complexity.
Almost. HOFOR covers approximately 98% of Copenhagen Municipality's heat needs. Almost all apartments are connected. Check your address at hofor.dk.
Interior renovation — new bathroom, kitchen, floors, paint — normally does not require a building permit. Apartment mergers, loft conversions, balconies and façade changes require approval from Copenhagen Municipality.
Drainage stacks and shared drainage systems are typically the most expensive items — and they require a collective decision in the building. A full stack renovation can cost 1–3 million kr for an entire building. Roof and façade are next.
No, if you live in a co-operative or owners' association, major works — plumbing, electrical, load-bearing walls — typically require the association's approval. Always check the association's articles of association and house rules before starting.
Yes — Copenhagen's property prices are high and stable. A well-renovated bathroom and kitchen significantly increases value. Energy renovation also reduces monthly costs and improves the energy rating at sale.
Next steps.
HOFOR district heating in Copenhagen
Almost all apartments are connected — learn about district heating.
assignmentBuilding permit in Copenhagen
What requires a permit and what can you do freely?
apartmentRenovation of an apartment building
Drainage stacks, roof, façade — collective decisions in buildings.
Tell us about your project in Copenhagen.
We help homeowners in Copenhagen prioritise renovation and get started — from the first assessment to completed project.
Start your dream here