Buy a flat with someone on your side
The app that helps you understand the home and its surroundings, from first listing to moving in.
Understand the association’s finances
The association's debt (foreningens gæld), whether the boligafgift can rise if its loans are refinanced, and for an andelsbolig: how the andelskrone sets the maksimalpris. We read the accounts for you and say plainly what the numbers mean.
What we found
- Association's debt High
- Boligafgift Raised
- Maintenance Backlog
- Andelskrone No data, ask
What you pay each month
See the monthly cost in one place. In the app, adjust the interest rate and your circumstances to see how your buffer changes.
Monthly cost →
13 950 kr/mo
At 6% rate: 16 400 kr/mo
Get to know the area
See what is nearby and how everyday life could work. Explore the surroundings and find out what to check in person.
Explore areas →
Nørrebro, København
- Public transport
- Grocery shops
- Schools and childcare
Go into bidding with a plan.
See what different bids mean for your monthly cost and set a limit that fits your finances.
Monthly cost
13 950 kr/month
Follow up unanswered questions before bidding.
Compare what sets them apart
Put two homes side by side: monthly cost, commute and condition.

Birkevej 8

Fyrrestien 3
- Monthly cost
- 13 950 kr/month15 800 kr/month
- Commute
- 17 min33 min
- Debt per m²
- 9 600 kr4 100 kr
Everything to check at the viewing
A checklist and questions for the agent, tailored to this home's age and association. The key-information sheet (nøgleoplysningsskema) and the important things are not forgotten.
Know what to do next.
Keep track of what remains, from viewing to signing and handover. If you need to sell first, your sale fits into the same plan.
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Prepare to buy
Bring together your budget and what you are looking for.
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Go to the viewing
Save questions and observations for each home.
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Plan your bids
Choose your limit and follow up what you need to know.
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Before signing
Get help understanding what to check before you sign.
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Before handover
Keep track of what remains before you get the keys.
Start with one home.
Analyse a homeNumbers you can trust
We keep track of what needs checking and fixing, so you don’t have to hold it all in your head.
- Every number can be adjusted, and you see what it builds on.
- When a figure is missing we say so, rather than guess.
- Amounts, rules and thresholds are checked against official sources.
10,000+
housing co-ops
600+
areas with price data
2026
loan and tax rules
See everything about the flat and its association
See a finished analysis, or start with a home you're looking at.
Read on
Common questions
What does Heimer cost?
Your first analysis is free. After that, Premium is 249 kr a month for unlimited analyses.
Which sites work?
A link from Boligsiden, Boliga or most agent sites works fine.
Do you find the association's debt?
We read what's in the listing, the accounts and the key-information sheet. If a figure is missing, we say so plainly instead of guessing.
Is Heimer on the buyer's side?
Yes. We're on your side, helping you understand the listing so you can feel sure about the decision.
Looking for a different property type? House