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Glam Journal

Can you put a VELUX window in a flat roof?

Author

David Craig

Updated on April 07, 2026

Can you put a VELUX window in a flat roof?

Can you put a VELUX window in a flat roof? VELUX do produce roof windows suitable for Flat Roofs. In fact, VELUX Flat Roof Skylights are available in a range of sizes, making it easy for you to choose and install.

Do I need building regs for a VELUX window?

Approval under the Building Regulations will generally be needed for the installation of a new rooflight for the following reasons: To install a rooflight, the roof structure will generally need to be altered to create the opening. The roof will have to be able to carry the load (weight) of the new rooflight.

Can you put skylights in a flat roof?

It is possible to install a skylight on a flat roof and you can trust it will look stunning. However, like with any building project, planning permission may be required, and this will depend heavily on your chosen product.

Do you need planning permission for a flat roof skylight?

You will always need planning permission for skylights or roof windows if you’re a leaseholder or you live in a building where your local authority has made an Article 4 Direction, removing your permitted development rights.

How much does it cost to put a skylight in a flat roof?

How much does it cost to put in a skylight? Roof skylight costs range between £70 and £130, and there are several different types to choose from based on your individual needs. The cost of professional installation with a flashing kit, collar, insulation and roof alterations ranges between £800 and £1,100 in labour.

Do you need planning permission for a VELUX balcony?

It doesn’t clarify the installation of VELUX or FAKRO balcony windows though. Our friends at VELUX say none of their windows need planning permission but they can’t guarantee the renovation work you’re planning for your home won’t.

Can a VELUX window be installed on a flat roof?

I live in an unprotected period house in Dublin city centre and wish to put a Velux window on the rear-facing aspect of the roof. It won’t overlook the neighbours as there is a flat roof beyond it – will the planning authority mind?

Do you need planning permission for roof windows?

If you’re converting your loft or building a house extension and you want to get your VELUX windows fitted, the first thing you should do is to find out whether you need planning permission. Usually, you’ll be able to install roof windows under permitted development rules, but only when they are installed in accordance with the given conditions.

Do you need planning permission for a skylight?

When it comes to inserting rooflights or skylights into your home, generally there isn’t a need to apply for planning permission as long as the following limits and conditions are met: Any windows installed must protrude no more than 150 millimetres above the existing roof plane

It doesn’t clarify the installation of VELUX or FAKRO balcony windows though. Our friends at VELUX say none of their windows need planning permission but they can’t guarantee the renovation work you’re planning for your home won’t.

I live in an unprotected period house in Dublin city centre and wish to put a Velux window on the rear-facing aspect of the roof. It won’t overlook the neighbours as there is a flat roof beyond it – will the planning authority mind?

When it comes to inserting rooflights or skylights into your home, generally there isn’t a need to apply for planning permission as long as the following limits and conditions are met: Any windows installed must protrude no more than 150 millimetres above the existing roof plane

When do you need to get planning permission for a roof window?

You don’t usually need planning permission to install a roof window or skylight into your home, especially when replacing an existing window of the same dimensions. Typically, you will only require roof window planning permission if you’re making very visible changes to your property.