# Attefall Sundsvall: Rules, Building Permits and Rental Opportunities

*Tuva Sundström*
*7 september 2026*

> Discover how to build or rent an attic house in Sundsvall – from building permits to rental income in 2026.

Attefall Sundsvall offers a unique opportunity to increase housing supply and generate new rental income in a demand-driven city. This guide walks you through every step from building permits to rental opportunities for attic houses in Sundsvall.

## Building Permits and Regulations for Attic Houses in Sundsvall

To obtain a building permit for an attic house in Sundsvall, special review of planned measures is required. Attic houses are limited to a maximum of 25 square meters and must be adapted to the existing building's structure.

### Requirements for Attic Houses

- Maximum 25 square meters
- Maximum 15% of the existing dwelling's area
- Must connect to the same electricity and water networks
- Requires special approval from Sundsvall's building authority

### Permit Process

1. Verify that your property is suitable for an attic house
2. Create a drawing of the planned area
3. Submit the application to Sundsvall's building authority
4. Wait for decision (typically 4-8 weeks)
5. Start construction after approval

Hyresgästföreningen notes that attic houses often yield 8-12% higher rental returns compared to standard apartments.

## Renting or Living in Your Attic House in Sundsvall

Many choose to rent out attic houses in Sundsvall to capitalize on demand for small dwellings. Alternatively, you can live in your attic house as part of your primary residence.

### Renting Attic Houses in Sundsvall

Renting attic houses in Sundsvall is attractive for students and young couples. The market for small units is strong, especially near the city center and university.

### Living in an Attic House

Living in an attic house provides extra living space without moving. It can also increase the value of your main dwelling.

## Rental Opportunities and Economic Benefits

Attic houses in Sundsvall can be rented for 5,000-7,000 SEK per month for a 25 square meter unit. This varies by location and condition.

### Rental Income Comparison

| Area | Average Rent | Annual Rental Income |
|------|--------------|---------------------|
| 15 sqm | 4,000 SEK | 48,000 SEK |
| 25 sqm | 6,000 SEK | 72,000 SEK |
| 30 sqm | 7,000 SEK | 84,000 SEK |

### Tax and Rules

Rental income from attic houses is taxable. You pay municipal tax on the profit, and total returns typically range from 5-8% of the property's value.

## Practical Examples of Attic Houses in Sundsvall

There are several successful examples of attic houses in Sundsvall. In the Sunnanå district, a property on Kungsgatan 12 built a 22 square meter attic house that now rents for 6,500 SEK per month.

### Case Study: Kungsgatan 12

- Year: 2023
- Area: 22 sqm
- Rent: 6,500 SEK/month
- Rental yield: 6.8% of property value

### Other Examples

Ongoing projects in North Sundsvall include attic houses of 18-25 sqm in multi-family buildings, often with separate entrances.

## Contact and Next Steps

For detailed information on building permits and regulations, contact Sundsvall's building authority. They have a website with forms and guidelines.

[Hyresgästföreningen](https://www.hyresgastforeningen.se/) offers support for landlords and tenants.

[Boverket](https://www.boverket.se/sv/samhallsplanering/bostadsmarknad/) provides national guidelines for housing development.

[Jordabalken (Riksdagen)](https://www.riksdagen.se/sv/dokument-och-lagar/dokument/svensk-forfattningssamling/jordabalk-1970994_sfs-1970-994/) regulates agricultural and housing-related matters.

## FAQ

### What is the maximum area for attic houses in Sundsvall?

The maximum area for attic houses is 25 square meters, which applies throughout Sundsvall.

### How long does it take to get a building permit for an attic house?

Building permits for attic houses typically take 4-8 weeks to process.

### Can you rent out an already built attic house?

Yes, you can rent out an already built attic house, but the rental contract must comply with specific rules.

### What are the biggest advantages of attic houses?

The biggest advantages are increased living space, potential rental income, and improved housing quality.

### What requirements exist for electricity and water connections?

Attic houses must connect to the same electricity and water networks as the main dwelling, with approved connections.