Average Cost of a Loft Conversion in Birmingham | Average Prices 2026

Loft conversions are popular in Birmingham. It’s a cost-effective way to create more space without the expense of moving home. And, if you live in area, you like and your children are happy in school, moving might not be an option you want to consider.

Loft conversions make the most of your unused roof space A standard 20m2 dormer conversion in Birmingham will cost between £29,000 and £34,000. That should give a large room with an en-suite which you can use as an extra bedroom for your growing family, or as a guest room. You could also use the conversion as a home office or an entertainment space.

Comparing quotes from local loft conversion specialists can help you to find out the likely cost of a loft conversion on your property so that you can budget accordingly.

Average Cost of a Loft Conversion in Birmingham

The average cost of a loft conversion depends on the type of conversion and the structural work involved. Other factors that will affect the price include:

• Your property type
• The condition of the roof
• Ease of access
• Specification
• Trades required

Velux Conversion – A basic Velux conversion will be your cheapest option as this doesn’t require any external alterations apart from the addition of windows.

Dormer Conversion – Dormers are more expensive, but popular because they increase the floor space.

Hip-to-Gable Conversion – This conversion involves major changes to the roof and therefore costs more.

Mansard Conversion – A Mansard conversion involves major structural changes and creates the largest amount of space, it’s the most expensive of all the conversion types.

Below you can see the average costs of various loft types and design choices. Prices for a loft conversion in Birmingham are on average, between £1,450 and £2,100 per m².

Factors Affecting Loft Conversion Costs

Every property in Birmingham is different and so the cost of a loft conversion will depend on various factors. For example, a loft that’s a good height and easy to access will normally cost less than a loft that needs major structural alterations. Where you live in Birmingham will also affect costs. If you are in a busy area where parking is limited, then bringing in materials may take longer which will increase labour costs.

Other factors that will influence the final price include:

• Type of loft conversion
• Size of the loft
• Existing roof structure
• Roof pitch and available head height
• Whether steel beams are needed
• Staircase installation
• Insulation and ventilation
• Electrical work
• Plumbing work
• Adding a bathroom or en-suite
• Quality of fixtures and finishes
• Scaffolding
• Waste removal
• Access to the property

Loft Conversion Types and Costs

Velux Conversion

A basic Velux conversion involves reinforcing the floor, insulating the walls and adding windows. There are no structural modifications. Cost per m² on average is between £1,450 and £1,700

Dormer Conversion

Dormers are popular because they increase the floor space and create a flat ceiling, which is done by building a box-shaped structure within the pitched roof. Cost per m² on average is between £1,700 and £1,950

Hip-to-Gable Conversion

to-Gable Conversion – These conversions are used in semi or detached houses where the sloping end of the roof is replaced with a vertical gable wall. This creates a lot more space. Cost per m² on average is between £1,850 and £2,050

Mansard Conversion

Mansard conversion changes the shape of the roof completely and are the most expensive type of loft conversion, as they add the most space to your home. Cost per m² on average is between £2,000 and £2,100 but can be more.

Additional Costs to Consider

When you are planning your budget for a loft conversion, there are some additional costs you may need to consider. Below are some of the most common costs associated with a loft conversion in Birmingham. These may or may not apply to your project as only some are obligatory.

Do You Need Planning Permission for a Loft Conversion in Birmingham?

In the majority of cases loft conversion planning permission isn’t necessary if the conversion complies with certain planning regulations:

• The conversion must not increase the roof height or extend beyond the existing roof slope at the front of the house
• The new roof space cannot be larger than 40m³ for a terraced home and 50m³ for a detached or semi-detached property
• There can’t be any raised platforms, balconies or verandas added to the construction and the materials used must be similar to the original building
• Side-facing upper-floor windows must be glazed with obscure glass. They must also be non-opening if they are less than 1.7 metres above the floor level

All loft conversions in Birmingham must comply with building regulations for:

• Structural integrity
• Fire safety
• Staircase design
• Insulation
• Ventilation

How Long Does a Loft Conversion Take?

The amount of time it takes to build a loft conversion in Birmingham depends on a number of factors. These include;

• The planning requirements (If a party wall agreement is needed this may prolong the timescale)
• Structural work (new steel beams and strengthened floor joints)
• Whether there is a bathroom installation (You may have to wait until a plumber is available)
• The level of finish (this can add between 1-3 weeks)
• The weather (bad weather may stop work)

Average Timescales for a Loft Conversion in Birmingham

Benefits of a Loft Conversion

If you have unused loft space and you need extra living space, but you don’t want to move home then a loft conversion might be the solution.

Depending on the property you’re living in, its location and the quality of the conversion, it may also increase your property value. A professionally built loft conversion may add between 15% and 20% to the value of your home. For example, a good quality loft conversion in the North East will add around £38,000 to the value of your home, while the same conversion in the South East will add around £97,000.

A loft conversion can transform an empty space into an en-suite bedroom for guests, or a family member. If you work from home, you could use it as a home office. Or you might want a family gym, an entertainment space or a teenager’s den.

Hiring a Loft Conversion Specialist in Birmingham

A loft conversion needs to be structurally safe and meets with building control regulations. By hiring a professional loft conversion specialist in Birmingham, you can ensure that your loft conversion is not only functional and attractive but is safe and meets with building control standards.

Use MyJobQuote to find loft conversion specialists in Birmingham and when you have each quote it’s a good idea to check the following:

• Experience with similar loft conversions
• Positive reviews
• If structural calculations are included
• Knowledge of building regulations and standards
• Whether they will manage other trades
• Payment terms and timescales
• Insurance cover
• Workmanship guarantees

You can get up to 3 quotes from loft conversion specialists in Birmingham by using MyJobQuote. This allows you to compare prices and services.

By browsing the profiles of specialists near you and reading the reviews of previous customers, you can choose a loft conversion specialist in Birmingham that suits your needs.

Get Quotes

The total cost of a loft conversion in Birmingham will depend on the type of conversion you choose the structure and finish and any additional features such as an en-suite bathroom.

The easiest way to find out how much it will cost to covert your loft is to post your job on MyJobQuote to receive no obligation quotes from local loft conversion specialists in Birmingham.