Loft Conversion in County Londonderry

Obtain Loft Conversion Prices in County Londonderry

Home > Loft Conversions Projects > Loft conversion > County Londonderry

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

Loft conversion searches in July 2026

Loft conversion Projects in County Londonderry in June 2026

2,391

Requests for quotations in County Londonderry in June 2026

20

Requests for Loft conversion quotations in County Londonderry in June 2026. -33% change from May 2026.

441

Requests for Loft conversion quotations in Northern Ireland in June 2026. -5% change from May 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. Quotatis 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 June 2026

10

Requests for quotations in Londonderry in June 2026

10

Requests for quotations in Coleraine in June 2026

1

Requests for quotations in Magherafelt in June 2026

1

Requests for quotations in Limavady in June 2026

1

Requests for quotations in Portstewart in June 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.

Looking for Loft conversion in County Londonderry?

Get free quotes from local builders

Get free quotes

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

Post a similar request >

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...

Post a similar request >

11 May

Conversion | Loft

Londonderry - BT47

Enquiry from: Noreen M

Start Date: Immediate

Loft conversion two rooms on s two bed terraced house

Post a similar request >

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...

Post a similar request >

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

Post a similar request >

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...

Post a similar request >

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...

Post a similar request >

14 Mar

Conversion | Loft

Coleraine - BT51

Enquiry from: Eve F

Start Date: Immediate

A velux window loft conversion

Post a similar request >

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 ...

Post a similar request >

11 Jan

Conversion | Loft

Londonderry - BT48

Enquiry from: Emma B

Start Date: Immediate

Loft conversion to habitable bedroom

Post a similar request >

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...

Post a similar request >

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...

Post a similar request >

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...

Post a similar request >

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...

Post a similar request >

21 Sep

Conversion | Loft

Londonderry - BT48

Enquiry from: Aine W

Start Date: Immediate

Loft conversion

Post a similar request >

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).

Post a similar request >

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 ...

Post a similar request >

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

Post a similar request >

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...

Post a similar request >

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...

Post a similar request >

Local & reliable builders near me

Tell us about your loft conversion project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in County Londonderry

Get free, no-obligation local loft conversion quotes from 4 verified builders working in County Londonderry.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love Local Quotes it's a big part of my …

Love Local Quotes it's a big part of my Business I would recommend to anyone

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.

What kinds of loft conversion are there?

There’s a huge range of different types of loft conversions. The most common are dormer and skylight or Velux conversions. There are also hip to gable and mansard conversions. The type of loft conversion that’s most suitable for your property will depend on the style of roof and the size of your loft.

how long does a loft conversion take?

If you’re about to carry out a loft conversion project, you’d probably be wondering how long it’ll take to complete the task. Well, you’re not alone! This is one of the most common questions when it comes to loft conversion projects, however, providing a set timeframe for completion of such projects is impossible as all loft conversions vary. There are different factors that can determine the duration of your project. These factors include, the materials to be used, the type of the proposed loft conversion, the kind of staircase you’ll like to have installed, the number of windows included, the number of rooms to be added as well as a number of other influencing factors. As a result of these variables, the milestones and timings provided are only to be taken as guidelines. If you’d really like to have a set date, you can get in touch with a professional for help.

Generally, it’ll take up to 8 weeks to complete a loft conversion project.

✓ The first week activities will include putting up scaffolding, receiving the first materials for the build and creating an opening in the roof to gain access to the loft space.

✓ In the second week, the structure of the roof will be ammended and more support added.

✓ Third week, the floor joists will be fitted, building of the loft conversion will start, completion of the external roof works and commencement of plumbing and electric works.

✓ Fourth week, complete the building, construct the loft floor, fit the roof windows, insulation, ventilation and internal stud walls.

✓ Fifth week, apply plaster and plasterboard to the room walls, create a staircase opening and fit the new staircase.

✓ Sixth week, plaster the staircase area, complete plumbing and electrical works, hang the doors, fit skirting, handrails and bannisters and start decoration.

✓ Seventh week, complete the decoration and clean and wipe out all wastes.

✓ Eight week, complete all the remaining tasks.

how much value does a loft conversion add?

When its impossible to build out and create more space sideways, why can’t you look upwards? As more and more homeowners in the UK are carrying out their loft conversion project, one question that keeps popping up is the amount of value the loft conversion can add to their homes. However, this is a question that is impossible to provide a single and precise answer to. This is because the value that’ll be generated by a loft conversion is largely dependent on a wide range of influencing factors. To give you a vague idea of the loft conversion value to a property, we’ve put forward a research carried out by industry experts so you can know what you’re in for.

Nationwide carried out a research which shows clearly that a loft conversion including an additional bedroom as part of the building plan will increase a house’s value by up to 21 percent. Since the number of rooms a house has is one of the main metrics for house valuations, loft conversion comes in pretty handy as it’s a great and easy way to convert your house from a 4 bedroom house to a 5 bedroom house prior to sale.

Apart from the financial value aspect, loft conversion also adds more value to your lifestyle which is very unlike nearly other financial investments you can make. More space in your house automatically means more storage or a new room as you wish. A new room can be for a growing family or probably to serve as a guest room. It can also be used as a study space or even an office especially with the rapidly growing rate of people working from home. With loft conversion, the possibilities in terms of value are simply endless!

Loft conversion

Other Top Projects in County Londonderry

Customer Reviews

Overall rating:


County Londonderry Loft conversion installers are rated 0 out of 5 based on 0 reviews of 2 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with Loft conversion projects that have been connected with Loft conversion pros to help them. All Loft conversion contractors All County Londonderry Loft conversion contractors

Are you a builder in County Londonderry?

We can help you get more loft conversion work with our qualified job leads and boost your business.

Join today