Renovation of your home in Alleroed.
Allerød is a North Zealand commuter municipality 35 km north of Copenhagen with 27,000 residents. The municipality was one of the few to choose to remain independent when the 2007 municipal reform took place — 70% of residents voted in favour. Allerød is characterised by affluent families, high levels of education and a quiet, green quality of life. The housing market is strong with high prices and low vacancy.
Alleroed in brief — context for your renovation.
trainS-train to Copenhagen in 30 minutes
Allerød Station is on S-train line A — 32 minutes to Christianshavn. The fast connection to the city centre attracts well-resourced families and is the primary driver of the municipality's strong housing market.
parkForest and nature as a neighbour
Allerød is surrounded by forests and lakes — Furesøen, Lynge Skov and Stubbemosen. The North Zealand natural landscape is a key attraction for newcomers and keeps property prices high.
homeA detached-house municipality with high prices
51% of homes are detached houses — mainly from the 1960s–80s. Prices are significantly above the national average. A well-executed renovation in Allerød can deliver an excellent increase in value.
Your housing type.
Detached house from 1960–1985
51% of homes in Alleroed — approx. 5,544 dwellings (source: Statistics Denmark 2025)
Detached houses dominate Allerød — mainly brick villas from the 1960s–80s in Lillerød, Lynge and Blovstrød. Prices are high (2–5 million kr for an average house), and a good renovation is almost always profitable. North Zealand trades prices are 15–20% above the national average.
What's typical?
- — Brick exterior walls
- — Pitched roof with concrete tiles or clay tiles
- — District heating from AK Fjernvarme / Norfors
- — Garden of 700–1,200 m² with forest or meadow views
Common weaknesses
- — Insufficient insulation in houses from the 1960s–70s
- — Worn roof covering
- — Outdated bathroom and kitchen
- — Ageing district heating installations
Typical costs
New concrete tile roof
105,000–250,000 kr
North Zealand pricing — 15–20% above the national average. Plan 3–6 months ahead. . Source: Bolius
Energy windows (per window)
5,000–10,000 kr
Installed energy window. North Zealand pricing. . Source: Bolius
New bathroom
100,000–260,000 kr
Full renovation including plumbing. High demand — book early. . Source: Bolius
Do you need an architect?
Probably not necessary for:
- — Roof replacement using the same material
- — Extension under 50 m²
- — Interior renovation
Architect recommended or required for:
- — Extension over 50 m²
- — Façade alterations
- — Loft conversion
Terraced house from 1970–1990
29% of homes in Alleroed — approx. 3,095 dwellings (source: Statistics Denmark 2025)
Terraced houses mainly in Lillerød and Lynge. Solid North Zealand construction. Many have good potential for extensions and energy renovation.
What's typical?
- — Brick terraced houses in one to one-and-a-half storeys
- — Pitched roof
- — District heating
Common weaknesses
- — Insufficient loft insulation
- — Ageing windows and patio doors
Typical costs
Energy renovation of terraced house
200,000–450,000 kr
Roof, windows and insulation. North Zealand pricing. . Source: Bolius
Do you need an architect?
Probably not necessary for:
- — Interior renovation
Architect recommended or required for:
- — Extensions and façade alterations
Apartment building
19% of homes in Alleroed — approx. 2,085 dwellings (source: Statistics Denmark 2025)
Apartment buildings mainly in Lillerød town centre. A mix of social housing and private rental connected to the district heating network.
What's typical?
- — 3–4 storeys in brick
- — District heating
- — Shared basement
Common weaknesses
- — Outdated plumbing
- — Insufficient façade insulation
Typical costs
Façade renovation with insulation
1,600–2,800 kr/m²
Including new surface finish. North Zealand pricing. . Source: Bolius
Do you need an architect?
Probably not necessary for:
- — Interior apartment renovation
Architect recommended or required for:
- — Façade renovations
- — Roof renovations
Local conditions in Alleroed.
local_fire_department District heating — AK Fjernvarme / Norfors
Allerød Municipality owns two combined heat and power plants under the AK Fjernvarme brand. The district heating is based on surplus heat from electricity production and waste incineration via Norfors. It is a green, efficient and quiet form of heating. Check alleroed.dk for coverage and connection.
alleroed.dk/borger/bolig-forsyning-og-udearealer/varme-og-energi/fjernvarme
account_balance Heritage value
Allerød has relatively few heritage-listed buildings. Most homes date from the post-war era. If your home is registered, the usual rules apply.
Look up your address at the Danish Heritage Agency's FBB register
assignment Building permit in Alleroed
Apply for a building permit via Byg & Miljø on alleroed.dk. North Zealand municipalities generally have efficient case processing.
savings Grants for energy renovation
Subsidies for energy renovation are available via Sparenergi.dk. AK Fjernvarme provides guidance on connection and energy savings.
Alleroed in figures.
Data from Statistics Denmark (2025) and the Danish Heritage Agency — context for your property.
Dwellings total
3.4% vacancy rate
Social housing units
Source: Landsbyggefonden
CO₂ emissions by sector
Energy
45,512 tonnes CO₂
Transport
35,604 tonnes CO₂
Chemical processes
1,597 tonnes CO₂
Agriculture and land use
3,183 tonnes CO₂
Waste disposal and biogas
1,757 tonnes CO₂
Wastewater
615 tonnes CO₂
Frequently asked questions
about renovation in Alleroed.
Yes — Allerød has one of North Zealand's strongest housing markets. High prices and stable demand make renovation investments very profitable. A fully renovated villa can easily gain 500,000–1,000,000 kr in value.
Yes, Allerød is covered by AK Fjernvarme (the municipality's own district heating company) and Norfors. The district heating is based on surplus heat and waste incineration — green and competitively priced. Check alleroed.dk for coverage.
North Zealand trades prices are 15–20% above the national average. On the other hand, property prices are high enough that a good renovation more than pays for itself.
Roof, additional insulation, energy windows and bathroom. With Allerød's high property prices, a good renovation can deliver an excellent increase in value. Plan the project as a whole and consider using an architect to coordinate.
North Zealand trades prices are 15–20% above the national average. A new roof costs 105,000–250,000 kr, energy windows 5,000–10,000 kr each and a bathroom 100,000–260,000 kr. Property prices are high enough that a good renovation clearly pays off.
Next steps.
District heating in Allerød
AK Fjernvarme and Norfors — green and efficient heating in the municipality.
assignmentBuilding permit in Allerød
What can you do without a permit, and what requires approval?
buildExtension to a detached house
Take advantage of Allerød's good prices and space — plan a well-considered expansion.
Tell us about your project in Alleroed.
We help homeowners in Alleroed prioritise renovation and get started — from the first assessment to completed project.
Start your dream here