Terms of use and purchase

Draft for legal review. Last updated 1 October 2026. These terms do not apply until they have been approved and published.

Who we are

House Madness is made and provided by MEE AS (“we”, “us”), organisation number 912 185 001.

• Address: Svendsemarka 38, 3409 Tranby, Norway
• Email: [email protected]

There is more about the company on the company details page.

What these terms cover

These terms apply when you use the website housemadness.app, the app and your account, and when you buy something from us. The contract consists of

• these terms
• the prices and the description of what you buy, as shown on the pricing page and in the checkout when you buy
• the privacy policy, which explains how we handle personal data

You accept the terms when you create an account or buy something. If you use the app without an account, the terms apply as far as they are relevant.

If you buy as a consumer, you always keep your rights under the law, whatever these terms say. If you buy for a business, “Business customers (Proff)” also applies. Where that section says something different from the rest of the terms, it takes precedence.

The service

House Madness is a drawing app that runs in your browser. You can draw your house, import old drawings, plan a loft and changes to the load-bearing structure, see the house in 3D, bring in the site and maps, and make drawings for a building application. The AI assistant can change the drawing for you when you type or talk to it.

• Your drawings are stored with you. Projects are kept in the browser on the device you use. We have no copy, and they are not synced between devices. Save the project file regularly. If you clear your browser data or lose the device, we cannot get your houses back.
• The rules in the app are Norwegian. The checks in the app are based on Norwegian regulations and standards, such as the building regulations (TEK17) and NS 3940. If you build in another country, other rules apply.
• Data from others. Maps, property data and elevation data come from Kartverket (the Norwegian mapping authority) and other sources. We don’t control this data.
• Browser. Use an up-to-date version of a common browser.

Accounts

• You must be at least 16 to create an account.
• To buy anything and to use the AI assistant, you must be at least 18 and have reached the age of majority where you live.
• Give your correct name and email address, and keep them up to date.
• Your account is personal. Don’t share your password or your account. You are responsible for what happens on your account.
• If you think someone else has got into your account, change your password and tell us.
• If you log in with Google, Apple or Vipps, their terms for logging in also apply.

You can delete your account at any time under Account. If you have a paid plan, see “If you delete your account”.

Free

Free costs nothing, and you don’t need to give a card. The plan never turns into a paid plan by itself.

Free gives you

• one house with every floor and every tool
• import of PDFs and images, with automatic tracing of the drawing
• lofts, area calculations and an analysis of what the walls carry, with rough beam estimates on screen
• 3D with walk mode, and the site and maps from Kartverket
• a watermarked preview of the application drawings
• saving the project file and exporting images (PNG)
• with an account: 10 minutes of live calls with the AI assistant, once, and a set number of typed questions to the assistant each month

The limits of Free are

• one house
• no printing or PDF to scale, and no SVG or GLB export
• personal use only (see “Personal and commercial use”)

Paid plans

Pluss monthly

Pluss is a subscription that renews every month until you cancel it. You get

• as many houses as you like
• printing and PDF to scale without a watermark, including application drawings and work drawings
• SVG and GLB export
• 30 AI minutes a month

Project pass

The Project pass (Prosjektpass) gives you the same as Pluss for 12 months, for one payment. It never renews by itself. We remind you that it is about to end 30 and 7 days before. You get 30 AI minutes at the start of each of the 12 months.

If you buy a new pass while the old one is still running, the new 12 months start when the old pass ends. Until then, you can cancel the new pass and get all your money back.

Proff

Proff is for businesses and for anyone who uses House Madness in work for clients. You get everything in Pluss, plus

• a commercial licence
• your firm’s name, logo and organisation number in the title block
• 120 AI minutes per user a month

Proff is priced per user and paid monthly or yearly. Prices exclude VAT. See “Business customers (Proff)”.

AI minutes and top-ups

• AI minutes are used for live calls with the assistant. We count the time from when the call connects until it ends, in tenths of a minute (per started 6 seconds).
• Typed questions, including those with photos, don’t use minutes. They have a monthly limit instead, currently 20 questions on Free and 300 on Pluss and Proff. The limits are also on the pricing page.
• Unused included minutes on Pluss carry over to the next month, but you can have at most 90 included minutes at a time.
• You can buy top-ups of 60 or 180 minutes. Bought minutes don’t expire for as long as you have your account.
• We use your included minutes first, then the bought ones.
• A call ends when your minutes run out, when nobody has said anything for a while, or after 30 minutes at the most. You can start a new call.
• Minutes cannot be exchanged for money. The exceptions are under “Right of withdrawal”, “Money back” and “If we end the contract”.

Founder price

The first 1,000 customers who pay for Pluss get the founder price. It applies for as long as the subscription runs without a break. If you have a Project pass at the founder price, you keep that price if you buy a new pass no later than 60 days after the old one ended.

Revision week

If the municipality asks for changes to your application after your plan has ended, you can get 7 days of Pluss for free, once per house. Just write to us.

Personal and commercial use

Free and Pluss are for personal use: your own house, cabin or project, and helping family and friends without payment. You can use the drawings in your own projects, including your own building application.

If you use House Madness in work for clients or for payment, for example as a carpenter, builder, architect, drafting firm or consultant, you need Proff.

Prices and VAT

The price you pay is the price shown in the checkout when you buy. The prices on the pricing page and in the tables below are total prices for consumers:

• In Norway, 25 % VAT (MVA) is included.
• In the EU, the VAT of the country where you live is included.
• Elsewhere, taxes and duties are included where they apply.

Proff prices exclude VAT. See “Business customers (Proff)”.

You see the price and pay in the currency of the country or language you have chosen on the website. Your bank may charge a fee for currency exchange. We have no control over that.

Prices from 30 September 2026:

Pluss and top-ups (total price, VAT included)

Proff (per user, excluding VAT)

Payment

• You pay by card or another payment method shown in the checkout, such as Apple Pay, Google Pay or Vipps. Payments are processed by Stripe.
• We charge you when you buy, and for subscriptions at the start of each new period.
• You get a receipt by email.
• We never store your card details.
• If a renewal doesn’t go through, we try again. You keep access for 7 days while we do. If it still fails, the subscription ends and you move to Free.

Renewal and cancellation

Subscriptions

• Pluss monthly renews automatically every month until you cancel. There is no minimum term.
• You cancel online, under Account → “Manage subscription”. It’s quick and costs nothing.
• Cancellation takes effect at the end of the period you have paid for. You keep access until then.
• At least every six months, we remind you that your subscription is running and how to cancel it. If we don’t, you can cancel free of charge and get back what you paid for the time after the reminder should have been sent at the latest.
• You can change plan under Account. We then adjust the price for the rest of the period.

The Project pass

• The Project pass ends by itself after 12 months. You don’t need to cancel it.
• The pass is paid in advance, at a lower price than 12 monthly payments. If you want to end it early, you can do so once the first six months have passed. You then get back 1/12 of the price for each whole month left.

When your plan ends

• You move to Free. Nothing is deleted.
• You can still open and view all your houses and save the project files.
• Printing, PDF to scale and SVG and GLB export need a paid plan again.
• You keep the AI minutes you have bought.

If you delete your account

• Your plan ends straight away. This also applies to subscriptions.
• The rest of the period, the rest of a Project pass and unused AI minutes are lost. You don’t get money back for them unless you are entitled to it under the right of withdrawal, “Money back” or the law. Before you confirm, we show you what you will lose.
• The drawings in your browser stay where they are.

Right of withdrawal

If you buy as a consumer, you have a 14-day right of withdrawal under the Norwegian Cancellation Act (angrerettloven) and the consumer laws of the EU/EEA. You don’t need to give a reason. The withdrawal period ends 14 days after the day you bought.

Access starts straight away

You get access as soon as you have paid. So when you buy, we ask you to

1. request that we start providing the service before the withdrawal period is over, and
2. confirm that you know you lose the right of withdrawal once the service has been fully provided, for example when you have used all the minutes of a top-up.

You tick a box for this yourself before you pay. The box is never ticked in advance. We confirm your choice in the receipt email.

If you withdraw

• We refund what you paid no later than 14 days after we are told that you are withdrawing. The money goes back the way you paid, unless we agree otherwise. It costs you nothing.
• If you asked us to start straight away, we may deduct an amount for what you received up until you withdrew:
  • for Pluss and the Project pass: a proportionate part of the price, based on the number of days you had access compared with the whole period you paid for
  • for top-ups: a proportionate part of the price, based on how many of the minutes you have used
• If you have used all the minutes of a top-up before you withdraw, you no longer have a right of withdrawal for that top-up.
• Your access ends when you withdraw.

For your first Pluss payment, we deduct nothing. See “Money back”.

How to withdraw

Choose whichever way suits you:

• Use the “Withdraw from contract here” button under Account. You confirm your name, which purchase you are withdrawing from, and the email address we should send the confirmation to. Then press “Confirm withdrawal”. We email you a confirmation straight away.
• Send an email to [email protected] or a letter to our address, clearly saying that you are withdrawing.
• You are welcome to use the model withdrawal form at the bottom of this page, but you don’t have to.

It is enough to send your message before the withdrawal period ends.

Money back

On top of the right of withdrawal, we promise you this: if you change your mind within 14 days of your first payment for Pluss, monthly or the Project pass, you get the whole amount back, even if you have used the service. You don’t need to give a reason.

The promise applies once per customer. It does not apply to AI minute top-ups, where the right of withdrawal applies. When we refund you, the plan ends.

Write to [email protected], or use “Withdraw from contract here” under Account.

Your drawings

• The drawings and projects you make are yours. We claim no ownership of them.
• When you use features that send content to us, such as the AI assistant, you give us a limited right to process that content. We may send it to our subcontractors (Anthropic and OpenAI) and send the answer back to you. This right only covers providing the service to you and protecting it against misuse, and only for as long as needed. It is free of charge and non-exclusive.
• We don’t use your content to train AI models, for marketing or for anything else without your permission.
• We claim no rights to the suggestions the assistant makes for you.
• You are responsible for having the right to use drawings, photos and anything else you import or send. Older drawings may, for example, be protected by an architect’s copyright.

Our software

• The service, the software, the design, the symbols, the texts and the videos belong to MEE AS or those who license them to us.
• You get a personal right to use the service according to your plan for as long as the contract lasts. The right is non-exclusive and cannot be transferred.
• You may not copy, sell, rent out or pass on the service, or try to extract its source code, beyond what the law allows.
• Parts of the service are built on open-source software with its own licences.
• Maps and data from Kartverket, OpenStreetMap and others have their own licences. Don’t remove the credits the app puts on the drawings.

Acceptable use

You may not

• use the service for anything illegal, or to infringe the rights of others, such as copyright or privacy
• try to break into, overload or disrupt the service, or send malicious code
• get around payment, usage limits or security measures
• share your account with others
• extract content or data automatically (scraping), or use the service to build a competing service. You may still use the app’s tool interface in your own browser, for example to let your own AI agent draw your own houses.
• use the AI assistant to create illegal, harmful or abusive content, or break the rules of our AI providers (Anthropic and OpenAI)
• give the impression that drawings or calculations from House Madness have been checked or approved by us or by a professional when they have not

If you break these rules, we may stop the use in question, limit your account or close it. See “If we end the contract”.

Calculations, drawings and building applications

House Madness is a tool for drawing and understanding your house. It does not replace professionals.

• Structural figures are rough estimates. Loads, beams, posts, footings and other structural values in the app are simplified estimates (pre-sizing). They are not structural design, and no engineer has checked them.
• An engineer must check. Before you change the load-bearing structure – for example removing or altering a load-bearing wall, making an opening, converting the loft or adding a new beam – a qualified structural engineer in the country where you build (in Norway, a rådgivende ingeniør bygg, RIB) must check and design the change. This must happen before any work starts.
• Nothing is approved. Nothing in the app or from the assistant means that a solution is approved, lawful or safe to build.
• The application is your responsibility. You must find out yourself whether your project needs a permit, and apply for it. Many projects, including changes to the load-bearing structure, need a permit and professionals with formal responsibility, such as a responsible applicant and a responsible designer. The municipality decides what your case requires.
• Measurements and areas are guidance. Areas under NS 3940, stair checks under TEK17, and distances and heights from map data are for guidance only. Check the measurements on site.
• You are responsible when you use the drawings, for example in a building application, in a neighbour notice or with tradespeople.

The AI assistant

• It is a machine. The AI assistant is artificial intelligence (AI). You are not talking to a person, whether you type or are in a live call.
• It can be wrong. The answers are generated automatically. They can be wrong, incomplete or entirely made up, even when they sound confident.
• You decide. Changes the assistant suggests show as grey suggestions. Nothing becomes part of your drawing until you accept it yourself. Look over a suggestion before you accept it.
• Structural suggestions are estimates. Beam sizes and other structural suggestions from the assistant are rough estimates, just like the rest of the app, and must be checked by a qualified structural engineer (in Norway, a RIB). See “Calculations, drawings and building applications”.
• A photo doesn’t show everything. A photo cannot show what is inside a wall or a ceiling. The assistant cannot conclude from a photo that a wall is not load-bearing.
• Not legal advice. Answers about laws and rules are guidance only. Ask the municipality or a professional.
• Early access. The assistant is new. Its features, limits and quality may change.
• Providers. The assistant currently uses Anthropic (typed questions) and OpenAI (live calls). We may change provider or model to make the service better or cheaper. Before a new provider receives any of your personal data, we update the privacy policy.

Availability and changes to the service

Availability. We work to keep the service available and working as it should, but we cannot promise that it will never have errors or interruptions. Now and then we need to take it down for maintenance. The drawing tools keep working in your browser when our server is down; only your account, payments and the assistant stop working then. Some features depend on others, such as Kartverket, Stripe and the AI providers.

Updates. For as long as the contract lasts, we give you the updates needed for the service to work as agreed, including security updates.

Changes. We develop the service all the time. We may add, change or remove features when there is a good reason, such as new laws, security, technical developments, changes at our providers or to make the service better. Changes cost you nothing extra within the plan you have, and we tell you about them clearly.

If a change makes the service more than slightly harder for you to use, we notify you by email well in advance. You can then end the contract free of charge within 30 days of the notice or the change, whichever is later. If you have paid for time after the contract ends, you get that money back.

Faults

If you are a consumer, the service must be as we have described it and work as agreed for as long as you have it. If it doesn’t, you have rights under the Norwegian act on the supply of digital services to consumers (digitalytelsesloven), or under the equivalent rules of your country if you live in the EU or EEA:

• Tell us within a reasonable time after you discover the fault.
• We fix the fault within a reasonable time and at no cost to you.
• If we don’t fix it, or the fault is serious, you can get a price reduction, or end the contract and get back what you paid for the time the service was faulty.
• You may be entitled to compensation under the law.

Liability

Your rights as a consumer. If you are a consumer, nothing in these terms limits your rights under the law.

What you are responsible for. You are responsible for how you use the drawings, the calculations and the assistant’s answers. As far as the law allows, we are not liable for losses that arise because they were used for building, demolition or an application without the professional checks these terms require. Nor are we liable for the loss of drawings that were only in your browser, where the loss is due to browser data being cleared or the device being damaged or lost, and you had not kept a copy.

What we never limit. We never limit our liability for personal injury, for damage we have caused intentionally or through gross negligence, or where the law does not allow it.

Business customers have their own limitations of liability. See “Business customers (Proff)”.

If we end the contract

• We may stop or limit your use, or close your account, if you seriously or repeatedly break these terms, if you don’t pay, if the law requires it, or if it is needed to protect the service or others.
• Normally we tell you first and give you a chance to put things right. If the matter is serious or urgent, we may act straight away.
• If we close your account through no fault of yours, you get back what you paid for time you can no longer use, and for bought minutes you have not used.
• If we shut down the whole service, we email you at least three months before. You get back what you paid for time after the shutdown, and for bought minutes you have not used. Save your project files and print what you need before the service closes.

Changes to these terms

• We may change these terms when there is a good reason, such as new laws, changes to the service, security, or to make them clearer. The date at the top shows which version applies.
• If a change matters to you, we tell you by email at least 30 days before it applies.
• If you don’t want to accept a change, you can cancel before it applies. If you have paid in advance, for example for a Project pass, and the change is to your disadvantage, you get back what you paid for the time after you cancel.

Prices. If we raise the price of a subscription you have, we tell you at least 30 days before, and you can cancel before the new price applies. You keep your price for at least 12 months after you started paying it. The founder price is locked for as long as your subscription runs without a break. If we lower the price, the new price also applies to you from your next payment. The price of a Project pass you have already bought never changes.

Governing law and courts

The contract is governed by Norwegian law.

If you are a consumer living in another country, you keep the protection of the mandatory rules of the country where you live. You can also take legal action in the courts where you live, and we can only take legal action against you there.

Complaints and disputes

If you are not happy, please contact us first at [email protected]. We solve most issues quickly.

Consumers in Norway. If we can’t agree, you can get free help from the Norwegian Consumer Council, Forbrukerrådet, which can mediate between us. If that doesn’t settle it, the case can be brought before the Consumer Complaints Board, Forbrukerklageutvalget. The Norwegian Consumer Authority, Forbrukertilsynet, supervises marketing and contract terms, and you can report to them if you think we are breaking the rules.

Consumers in the EU. The European Consumer Centre in your country (ECC-Net) gives free help with disputes with businesses in other countries. You can also use the complaint bodies and courts in the country where you live.

Contact

MEE AS
Svendsemarka 38, 3409 Tranby, Norway
Email: [email protected]

Business customers (Proff)

This section applies when you buy Proff, or buy House Madness for a business. Where it says something different from the rest of these terms, it takes precedence.

The contract. The customer is the business. The person who accepts these terms confirms that they are authorised to bind the business. Rules that only apply to consumers, such as the right of withdrawal, the consumer rules for digital services (digitalytelsesloven) and the consumer complaint bodies, do not apply. The “Money back” promise still applies to your first Proff payment.

Users. Proff is bought per user. Each person who uses Proff needs their own account and their own subscription. Accounts cannot be shared.

Commercial licence. Proff gives you the right to use House Madness in work for clients and for payment. You are responsible for the firm details in the title block being correct.

Prices and VAT. Prices exclude VAT.

• Norwegian businesses pay 25 % VAT (MVA) on top.
• Businesses in the EU with a valid VAT number are invoiced without Norwegian VAT. The buyer accounts for VAT under the reverse-charge rules. Give your VAT number when you buy, and we will check it. Without a valid VAT number, we charge VAT as for consumers.
• Businesses in other countries pay any taxes and duties that apply there themselves.

Payment and renewal. Proff is paid by card through Stripe, or by invoice if we have agreed that. An invoice must be paid by the due date shown on it. If you pay late, we may charge interest under the Norwegian Late Payment Interest Act (forsinkelsesrenteloven). Proff renews automatically every month or every year until you cancel. Cancellation takes effect at the end of the period you have paid for. We don’t refund the rest of a period that has started, except under the “Money back” promise for the first payment. We tell you before a yearly subscription renews.

Professional responsibility is yours. House Madness is a tool. You have full professional responsibility for the work you deliver, including structural design and calculations, compliance with the Planning and Building Act and the building regulations, formal responsibility (ansvarsrett) and your relationship with your clients. Structural figures and suggestions from the app and the assistant must be checked by a qualified engineer before they are used. We are not liable for claims from your clients.

Limitation of liability. As far as the law allows,

• we are not liable for indirect losses, such as lost profit, lost data, lost contracts or claims from others, and
• our total liability is limited to what you paid us in the 12 months before the claim arose.

These limitations do not apply in cases of intent or gross negligence.

Complaints. Tell us about faults within a reasonable time after you discover them.

Your clients’ personal data (data processing agreement). If you send personal data about your clients through the service, for example their address in a conversation with the assistant, your business is the controller and we are the processor. This then serves as the data processing agreement under Article 28 of the GDPR:

• Purpose and duration: We process the data only to provide the service to you, that is, to send it to the AI assistant and the answer back to you. The processing lasts as long as the contract.
• Data and data subjects: information about your clients and their properties, such as names, addresses, drawings and photos, that you choose to send.
• Instructions: We process the data only on your documented instructions. These terms and the way you use the service are those instructions. We tell you if we think an instruction is unlawful.
• Confidentiality and security: The people who process the data at our end are bound by confidentiality. We apply the security measures described in the privacy policy.
• Sub-processors: You approve the sub-processors listed in the privacy policy. We tell you at least 30 days before we start using a new one, and you can object. Sub-processors are bound by the same obligations as we are.
• Assistance: As far as is reasonable, we help you respond to requests from data subjects and meet your obligations on security, breaches and impact assessments.
• Breaches: We notify you without undue delay if we become aware of a personal data breach affecting your data.
• Deletion: We don’t store the content of conversations with the assistant. When the contract ends, we delete any of your client data we may hold, unless the law requires us to keep it.
• Audits: We give you the information you need to see that we comply with this agreement, and we contribute to audits as agreed.
• Transfers: The data may be transferred to the United States on the bases described in the privacy policy.

Governing law and venue. Norwegian law applies. Disputes are settled by the Norwegian courts, with the district court (tingrett) where MEE AS has its business address as the agreed venue.

Appendix: Model withdrawal form

(complete and return this form only if you wish to withdraw from the contract)

To: MEE AS, Svendsemarka 38, 3409 Tranby, Norway, email: [email protected]

• I/We (*) hereby give notice that I/We (*) withdraw from my/our (*) contract of sale of the following goods (*)/for the provision of the following service (*):
• Ordered on (*)/received on (*):
• Name of consumer(s):
• Address of consumer(s):
• Signature of consumer(s) (only if this form is notified on paper):
• Date:

(*) Delete as appropriate.

It helps if you also give the email address you use with us, so we can find your purchase quickly.