Buy a flat with someone on your side

We follow you from the first viewing to the bid, flagging what makes a cheap flat expensive: the building's finances and what you pay each month.

or see an example

Årsta, Stockholm

12 375 kr/mo

within your budget

33,000+

housing co-ops

130+

checks per analysis

2026

loan and tax rules

The co-op's finances in five seconds

Debt per square metre, how the fee is trending and whether a pipe replacement is coming. What decides if a cheap flat gets expensive after you move in.

What we found

Debt per m² High
Pipe job Planned 2027
Monthly fee Raised recently
Leasehold No data, ask

What you pay each month

Interest, amortisation and the monthly fee add up to what you actually pay each month. Change the rate and watch it move.

12 375 kr/mo

Mortgage 7 100 kr/mo

Fee 4 200 kr/mo

Running 1 075 kr/mo

At 6% rate: 14 667 kr/mån

What similar flats actually sold for

We compare it with what similar homes in the area actually cost, so you can see if the asking price was set low to draw bids.

Asking price Likely final price

The neighbourhood you’re moving to

How far to work, the price level in the neighbourhood and the risks that come with the place itself.

Årsta, Stockholm

18 min to work

Area price vs the average −6 %

Traffic noise

Compare what sets them apart

Put two homes side by side: monthly cost, commute and condition.

Björkvägen 8 Tallstigen 3 Monthly cost 12 375 kr 14 100 kr Commute 18 min 34 min Debt per m² 3 200 kr 8 900 kr

Everything to check at the viewing

A checklist and questions for the agent, tailored to this flat's age and co-op. Nothing important slips through.

How to get started

01.

Paste the link

A link to the listing is all it takes, from most listing sites.

02.

Get a clear verdict

Monthly cost, risks and what to check.

03.

Go to the viewing prepared

A checklist and questions for the agent, for that exact home.

04.

Bid with confidence

You know the monthly cost and where the question marks are.

Analyse a home

Numbers 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.

Ready to check an apartment?

See a finished analysis, or start with a home you're looking at.

See an example

Search your co-op

Read on

BRF finances: how to read the annual report before you buy Seven mandatory key figures since 2023, rule-of-thumb levels for debt and savings per sqm, and what interest sensitivity means. How to judge a BRF. Stambyte (pipe replacement) and fee increases in a BRF: what it means for you as a buyer A stambyte often costs 250,000-300,000 kr per flat and is needed after 30-50 years. How to check the BRF has saved for it, and what pushes the fee up. Bidding on a Swedish home 2026: how it works, underpricing and hidden bids How bidding works in Sweden 2026: no bid is binding, underpricing requires a price well below market value, and hidden bids explained. With worked examples. Can I afford it? Swedish mortgage budget and stress test at 6 percent Work out if you can afford the home. Stress-test the monthly cost at 6-7 percent, the way the bank does, and see what you have left to live on. Buying a home together in Sweden: unequal deposits and the samboavtal Buying a home together but putting in different deposits? How to protect whoever pays more, using ownership shares or a samboavtal plus a debt note. Buying new-build: the risks of a brand-new bostadsrätt association The biggest risk in a new-build is not bankruptcy but high debt in the association. Here is how to read the economic plan before you sign. Calculate Is the BRF healthy? Work out the association's debt per m² and whether it's low, normal or high.

Common questions

What does Heimer cost?

Your first analysis is free. After that, Premium is 349 kr a month for unlimited analyses.

Which sites work?

A link from Hemnet, Booli or most agent sites works fine.

Do you find the co-op's debt?

We read what's in the listing and the annual report. 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