Loft Conversion in County Londonderry

Obtain Loft Conversion Prices in County Londonderry

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Loft conversion companies in County Londonderry

Searching for attic room conversion consultants in County Londonderry? Our loft area conversion renovators in County Londonderry can supply you the best quotations to have a loft area altered in your household.

The installation of a loft space extension in your house can be achieved promptly, enabling you to make full use of the modified living space and start benefitting from an added room. The attic alteration will be carried out by a vetted, approved business and as soon as this has been completed you'll be ready to start making use of the new region right away. With your newly modified attic you'll be able to have an extra bedroom, study or possibly a rec room.

With a number of loft area transformation styles and designs you'll be able to find something that matches your taste, whilst being practical and attractive.

We'll provide you with no obligation quotations from loft area transformation companies in County Londonderry who will be able to provide you no cost surveys and quotations for your conversion. Then you can compare these attic room conversion prices and guarantee to get the best value for your money. Request a free home survey from reputable companies.

Average Loft conversion cost in County Londonderry

The regular cost of a Loft conversion is £25000. Costs differ based upon the materials and the firm selected. The upper price range can be as high as £28750. The material costs are mainly approximately £6250

Average price per Loft conversion job in 2026

Avg. price low

Avg. price low
£18,750

Avg. price

Avg. price
£25,000

Avg. price high

Avg. price high
£28,750

£29300

£21975

£14650

£7325

£0

Prices based on actual Loft conversion costs for County Londonderry, as reported by local LeadsDoWork members.

Loft conversion installation cost in County Londonderry 2026

Labour cost £17,500
Material cost £6,250
Waste removal £1,250
Time frame: 6-12 weeks
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Loft conversion searches in October 2026

Loft conversion Projects in County Londonderry in September 2026

2,391

Requests for quotations in County Londonderry in September 2026

20

Requests for Loft conversion quotations in County Londonderry in September 2026. -33% change from August 2026.

441

Requests for Loft conversion quotations in Northern Ireland in September 2026. -5% change from August 2026.

We noted 2,391 requests for property or home quotations in County Londonderry. Of these quote requests the number of loft conversion quotations in County Londonderry was 20. Local Quotes would have been able to match these consumers with up to 4 suitable contractors who were available for work within County Londonderry at that time. Request a free property survey from reputable companies within County Londonderry.

Source: Numbers calculated based on the search volumes in major search engines

Loft conversion searches in cities and towns near County Londonderry September 2026

10

Requests for quotations in Londonderry in September 2026

10

Requests for quotations in Coleraine in September 2026

1

Requests for quotations in Magherafelt in September 2026

1

Requests for quotations in Limavady in September 2026

1

Requests for quotations in Portstewart in September 2026

Loft conversion near you

County Londonderry

The county of Londonderry, known as Derry, is among one of Northern Ireland's 6 counties and it has a population of 233,500. It takes its name from the city of the same name, which is the second biggest in Northern Ireland. With a contrast of classic and modern houses there are a variety of household renovations necessary to keep home value and ensure aesthetic attractiveness. Be sure to make use of professional tradesmen in Londonderry for all your house improvement work and guarantee high quality.

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Similar Customer Enquiries for Loft conversion in County Londonderry

19 Jul

Conversion | Loft

Londonderry - BT47

Enquiry from: Ruairi M

Start Date: Immediate

Velux loft conversion . Two bedrooms stairs and maybe bathroom

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22 May

Conversion | Loft

Magherafelt - BT45

Enquiry from: Neil V

Start Date: Immediate

loft converted to a bedroom with stair access through hot press and possible velux/dormer windows on one of both sides. are you the property owner: owner of the property property type: semi detached w...

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11 May

Conversion | Loft

Londonderry - BT47

Enquiry from: Noreen M

Start Date: Immediate

Loft conversion two rooms on s two bed terraced house

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15 Nov

Conversion | Loft

Londonderry - BT48

Enquiry from: Stephany C

Start Date: Immediate

loft converted into a bedroom are you the property owner: tenant (with permission) property type: semi detached what are you looking to convert the space into: bedroom/s are you looking to have stairs...

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30 Jan

Conversion | Loft

Magherafelt - BT45

Enquiry from: Pete P

Start Date: Immediate

i wanna convert a loft 2 at least a 2bedroom + 1ensuite or else a huge poolroom with bar and toilet

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12 Jan

Conversion | Loft

Londonderry - BT47

Enquiry from: Sean H

Start Date: Immediate

attic conversion, floored and walled, water tank moved and velux window. area for conversion around 10ft x 20ft. thanks are you the property owner: owner of the property property type: detached what...

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19 Apr

Conversion | Loft

Limavady - BT49

Enquiry from: Veronica L

Start Date: Immediate

loft converted into a dressing room and ensuite are you the property owner: owner of the property property type: terrace what are you looking to convert the space into: other are you looking to have s...

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14 Mar

Conversion | Loft

Coleraine - BT51

Enquiry from: Eve F

Start Date: Immediate

A velux window loft conversion

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16 Jan

Conversion | Loft

Londonderry - BT47

Enquiry from: Faye O

Start Date: Immediate

2 bedroom loft conversion, this house is for sale which i would be interested in but i need more space, the seller said it is ideal for an additional two bedrooms, before i make an offer on the house ...

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11 Jan

Conversion | Loft

Londonderry - BT48

Enquiry from: Emma B

Start Date: Immediate

Loft conversion to habitable bedroom

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15 Oct

Conversion | Loft

Londonderry - BT47

Enquiry from: Stephen D

Start Date: Immediate

wanted a floor in attic, a stair ladder and electricity ie lighting in attic to be used as a storage area are you the property owner: owner of the property property type: detached what are you looking...

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07 Jul

Conversion | Loft

Portstewart - BT55

Enquiry from: Sandra S

Start Date: Immediate

***droom and bathroom with walk in shower in loft and flooring rest of loft are you the property owner: owner of the property property type: semi detached what are you looking to convert the space int...

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24 Jan

Conversion | Loft

Londonderry - BT47

Enquiry from: Ann B

Start Date: Immediate

Hi there Could I please get a quote to convert my attic to a bedroom with ensuite please. Thanks Ann Are you the property owner: Owner of the property What are you looking to convert the space...

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29 Oct

Conversion | Loft

Limavady - BT49

Enquiry from: DECLAN B

Start Date: Immediate

Looking for quote for attic conversion for Home office. No plumbing required only electrics. Plans not started yet. Are you the property owner: Owner of the property Property Type: Detached What are...

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21 Sep

Conversion | Loft

Londonderry - BT48

Enquiry from: Aine W

Start Date: Immediate

Loft conversion

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10 Jul

Conversion | Loft

Coleraine - BT51

Enquiry from: Garyth Q

Start Date: Immediate

Conversion of a large attic room which already has a skylight window by flooring the area to provide an office area and a play room, with additional electrical connections (lights & sockets).

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08 May

Conversion | Loft

Londonderry - BT48

Enquiry from: Natalie S

Start Date: 1 to 3 months

A one bedroom with dorma window or to keep cost down a velux window. A separate ensuite toilet, shower and sink. So the 1st floor can get access as the main bathroom is situated down the stairs. Plug ...

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28 Feb

Conversion | Loft

Londonderry - BT47

Enquiry from: Lisa Y

Start Date: Immediate

Dormer loft conversion ,two windows at front oh house and two at back of house

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19 Dec

Conversion | Loft

Coleraine - BT52

Enquiry from: Ronnie G

Start Date: Less than one month

Water tank replacement, 2 Dormer Windows, full width working desk for computer, printer, scanner and work surface etc on adjoining wall, shelving ( 1ft x 50ft for books and ledgers starting at floor l...

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18 Aug

Conversion | Loft

Londonderry - BT48

Enquiry from: David M

Start Date: Immediate

Customer visited the myloftconversionprices.co.uk site and submitted an enquiry. Property type: Semi detached, Property owner: Tenant (with permission), Looking to convert into: Bedroom, Work descri...

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FAQs

do you need planning permission for a loft conversion?

Typically, loft conversions do not require planning permission except in certain situations. They’re usually covered under what’s known as Permitted Development. Certain building works like loft conversion, rear extension and conservatories are granted planning permission by local authorities. Permitted Development, however, gives you a free range to improve your home without having any issues from the councils or regulations. Before your planned loft conversion can be covered under Permitted Development, there are some certain criteria that must be met. This criteria includes the following:

✓ The extension must not go beyond the existing slope of the roof at the front of the house.

✓ The loft space converted must not go beyond 40 cubic metres in a terraced house.

✓ The roof’s height must not be increased by the extension.

✓ The loft space converted must not reach beyond 50 cubic metres in a detached or semi detached house.

✓ The plan for the extension mustn’t involve structures like balconies, verandas or anything other structures of this nature.

✓ The roof extension should be positioned as far back as possible or at least 20cm from the existing eaves.

✓ The side that faces the window openings should be at least 1.7m beyond the floor and the windows should also be obscured.

✓ The roof extension must not overhang the existing roof or wall of the house.

✓ The materials that are to be used must be similar or the same to the materials that has already been used on the house’s exterior.

However, you should bear in mind that there are some properties that are exempt from Permitted Development. Examples of these type of properties include conservation areas, Areas Of Outstanding Natural Beauty and World Heritage sites. Permitted Development does not also provide coverage for listed buildings.

Will I need planning permission to convert my loft?

Planning permission is not normally needed for a loft conversion as they are covered by permitted development rights. A conversion company will tell you if you do and help you with this. For more information, see our article about planning permission.

what is a dormer loft conversion?

A dormer loft conversion is a type of loft conversion that’s built making use of a roof’s existing slope. In other words, it’s an existing roof’s extension which is constructed in such a way that allows for an additional floor as well as head room especially suitable for lofts lacking good amount of usable space. The dormer loft conversion is simply an addition to the existing roof looking much like a box-like build constructed onto a pitched roof as it creates walls that are vertical to the slope while also being 90 degrees to the floor.

This type of loft conversion is the most common amongst homeowners in the UK mainly because it represents a cost effective means through which you can add an additional usable space to your home or property. The structure extends for the slope of the existing roof and can easily be altered to suit various tastes or styles. Furthermore, if you’re looking for a type of loft conversion that aids to foster reduced disruption to work, then dormer loft conversion is also your best bet. This is due to the fact that the structure is built from a scaffolding made outside a home.

There are different types of dormer loft conversion and the one which will best suit your property will depend on the property type, be it detached, semi detached or terraced as well as the existing roof shape and size. The dormer loft conversion is a popular choice for a lot of homeowners for a variety of reasons. Let’s have a look!

✓ It’s very cost effective

✓ The dormer loft conversion does not require planning permission so far it complies with certain conditions and limitations

✓ It adds an extra headspace as well as floor space.

Can my loft be converted?

Many types of loft are suitable for a loft conversion. In general, you will need at least 2.3 metres of headroom in your existing loft. This is to make sure there is enough headroom after the conversion. Speak to a conversion specialist about the probability and possibility of doing this in your house.

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