Loft Conversion in Knebworth

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Loft conversion companies in Knebworth

In need of loft conversion specialists in Knebworth? Our loft area conversion renovators in Knebworth are able to offer you the best quotations to have a loft transformed in your property or home.

The installation of a attic extension in the house can be completed swiftly, enabling you to make full use of the altered room and start benefitting from an extra room. The loft conversion will be carried out by a vetted, certified company and as soon as this has been finished you'll be capable to start using the new region right away. With your newly modified loft you'll be able to have an extra bedroom, study or maybe a rec room.

With a variety of loft conversion styles you'll be in a position to discover something that suits your taste, whilst being practical and appealing.

We shall offer you no obligation quotations from attic transformation firms in Knebworth who will be able to supply you free of charge surveys and quotations on your conversion. Then you're able to contrast these attic room conversion costs and guarantee to get the best value for your money.

Average Loft conversion cost in Knebworth

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 2025

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 Knebworth, as reported by local LeadsDoWork members.

Loft conversion installation cost in Knebworth 2025

Labour cost £17,500
Material cost £6,250
Waste removal £1,250
Time frame: 6-12 weeks

Loft conversion searches in April 2025

Loft conversion Projects in Knebworth in March 2025

81

Requests for quotations in Knebworth in March 2025

1

Requests for Loft conversion quotations in Knebworth in March 2025. 0% change from March 2025.

370

Requests for Loft conversion quotations in Hertfordshire in March 2025. 0% change from March 2025.

We noted 81 requests for house quotes within Knebworth. Of these quote requests the number of loft conversion quotes within Knebworth was 1. Quotatis would have been in a position to match these consumers with up to 4 suitable fitters who were available for work in Knebworth during that time. Request a free house survey from reliable companies in Knebworth.

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

Loft conversion searches in cities and towns near Knebworth March 2025

10

Requests for quotations in Ware in March 2025

10

Requests for quotations in Letchworth Garden City in March 2025

10

Requests for quotations in Stevenage in March 2025

10

Requests for quotations in Hertford in March 2025

10

Requests for quotations in Shefford in March 2025

Knebworth

Knebworth is a village as well as civil parish in the north of Hertfordshire, England, quickly south of Stevenage. The civil parish covers an area in between the villages of Datchworth, Woolmer Green, Codicote, Kimpton, Whitwell, St Paul's Walden and also Langley, and also includes the town of Knebworth, the little village of Old Knebworth and also Knebworth House. There is evidence of people staying in the location as far back as Neolithic times and also it is stated in the Domesday Book of 1086 where it is described as Chenepeworde (the farm belonging to the Dane, Cnebba) with a population of 150. The original town, now referred to as Old Knebworth, created around Knebworth House. Advancement of the newer Knebworth town started in the late 19th century centred a mile to the eastern of Old Knebworth on the new railway station and also the Great North Road (consequently the A1, as well as now the B197 since the opening of the A1(M) freeway in 1962). At the millenium the designer Edwin Lutyens developed Homewood, southeast of Old Knebworth, as a dower home for Edith Bulwer-Lytton. Her little girl, the suffragette Constance Lytton also lived there, till prior to her fatality in 1923. Knebworth has, given that 1974, been notoriously connected with various significant outdoors rock as well as pop concerts at Knebworth House, consisting of Queen's final real-time efficiency which happened on 9 August 1986 as well as attracted an attendance approximated at 125,000, Lynyrd Skynyrd, Oasis playing to a quarter of a million people for 2 evenings in 1996 and also more recently Robbie Williams, who for 3 nights in August 2003 carried out to the biggest groups ever assembled for a solitary performer. Stats from UK Census 2011: All Residents: 5,247.

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Loft conversion pros in Knebworth

Dream the Build

19 review(s)
Based: in London, EC1V 2NX

DREAM the Build. Ltd ' Constructing your Vision Making home development exciting, fun and asset building experience , future proofing household & investors Who we are ? Starting fresh in a new country is never easy, but what we did Catal...

Latest review

A., NW7
4

Conversion | Loft in London

Good quote

Unique Lofts LTD

2 review(s)
Based: in South mimms, EN6 3NX

Professional loft conversions at Unique Lofts, we are a specialist loft company with over 15 years of experience in construction. Call us today.

Latest review

Alan P., EN11
5

Conversion | Loft in Hoddesdon

only company that quoted

London Project Management Ltd Ta Modern Attics

1 review(s)
Based: in London, N3 2DN

Modern ATTICS specialise in loft conversions and House Extensions. We cover all areas of London - North, East, West, Central and South London.

Latest review

Helen W., NW4
4

Conversion | Loft in London

Nice guy

Similar Customer Enquiries for Loft conversion in Knebworth

04 May

Conversion | Loft

Knebworth - SG3

Enquiry from: Chris M

Start Date: Immediate

loft conversion bedroom with ensuite Are you the property owner: Owner of the property Property Type: Detached What are you looking to convert the space into: Bedroom/s Are you looking to have stair...

Post a similar request >

06 Jan

Conversion | Loft

Waltham Cross - EN7

Enquiry from: Bukurie H

Start Date: Immediate

customer made an enquiry for loft conversion and confirmed on the local quotes site they would like quotes from a builder.mrs lives in the waltham cross area and would like a call to discuss options.s...

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18 Apr

Conversion | Loft

Radlett - WD7

Enquiry from: Elaine G

Start Date: Immediate

Flat or prefab roof dormer window to existing loft.

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11 Jun

Conversion | Loft

St. Albans - AL2

Enquiry from: Claudine S

Start Date: Immediate

a dormer hip to gable added to the attic bedroom already in the property are you the property owner: owner of the property property type: terrace what are you looking to convert the space into: other ...

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28 Mar

Conversion | Loft

Barnet - EN5

Enquiry from: Dinu S

Start Date: Immediate

homeowner loft conversion- no previous quotes please call to appoint

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29 Jan

Conversion | Loft

Hatfield - AL9

Enquiry from: Andy K

Start Date: Immediate

I need to add 2 Dorma windows to my existing loft conversion

Post a similar request >

21 Dec

Conversion | Loft

St. Albans - AL1

Enquiry from: Rod L

Start Date: Immediate

convert back-facing side of existing velux loft extension to a dormer with two windows, in order to add additional space through head height and conversion of the eaves. room is approx 3.3m long and w...

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27 Sep

Conversion | Loft

Waltham Cross - EN8

Enquiry from: Daniel F

Start Date: Immediate

to build a staircase from the landing above the turn in the stairs to the loft with door access. are you the property owner: owner of the property property type: terrace what are you looking to conver...

Post a similar request >

25 Jul

Conversion | Loft

St. Albans - AL2

Enquiry from: Janice P

Start Date: Immediate

dormer conversion with two enviornments(2 rooms). Each being 50cubic meters or less. One will be a bed room and the other a music room study/ office study. PLease let me know if this is possible. And ...

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25 Dec

Conversion | Loft

Waltham Cross - EN8

Enquiry from: Sam J

Start Date: Immediate

Loft saricase like this https://www.stairbox.com/stairbuilder/top-and-bottom-left-winder-staircase-with-balustrade.html?gclid=CjwKCA***BhADEiwA_pZwcIMdVRyWwSOxKkJChi***gtln***cID6Em***rtTONwpyh***QAvD...

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23 Dec

Conversion | Loft

Barnet - EN4

Enquiry from: Elitsa N

Start Date: Immediate

Staircase for loft on semi detached house house with fourteen steps and two left turns .

Post a similar request >

13 Oct

Conversion | Loft

Waltham Cross - EN8

Enquiry from: Jacqui T

Start Date: Immediate

*homeowner Loft conversion including ensuite and stairs please call to appoint

Post a similar request >

30 May

Conversion | Loft

St. Albans - AL2

Enquiry from: John D

Start Date: Immediate

i already have a converted loft room and am investigating a rear facing former to increase floor and height space. the staircase also needs to be less steep are you the property owner: owner of the pr...

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25 Apr

Conversion | Loft

Enfield - EN2

Enquiry from: Tony M

Start Date: Immediate

removal of butterfly roof, and chimney stacks. build up 1 x gable end flank wall and install new pitch roof with full rear dormer. create living space of 5600 x 4300 inc 5m2 shower room. install stair...

Post a similar request >

21 Apr

Conversion | Loft

Broxbourne - EN10

Enquiry from: Bev T

Start Date: Immediate

simple loft conversion with velux window are you the property owner: owner of the property property type: semi detached what are you looking to convert the space into: bedroom/s are you looking to hav...

Post a similar request >

07 Apr

Conversion | Loft

Borehamwood - WD6

Enquiry from: Dan B

Start Date: Immediate

indicative quote for hip to gable loft conversion of a 1930's semi detached house. anticpate installing master bedroom and en suite bathroom with bath. are you the property owner: owner of the propert...

Post a similar request >

27 Mar

Conversion | Loft

Enfield - EN2

Enquiry from: Manoj R

Start Date: Immediate

Customer visited the myloftconversionprices.co.uk site and submitted an enquiry. Property type: Semi detached, Property owner: Relative of owner, Looking to convert into: Bedroom, Work description: ...

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12 Mar

Conversion | Loft

Waltham Abbey - EN9

Enquiry from: Filiz K

Start Date: Immediate

Loft conversion 2 meters height In Waltham abbey

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05 Mar

Conversion | Loft

Broxbourne - EN10

Enquiry from: Adam A

Start Date: Immediate

loft conversion with dormer- ensuite shower and toilet are you the property owner: owner of the property property type: semi detached what are you looking to convert the space into: bedroom/s are you ...

Post a similar request >

01 Mar

Conversion | Loft

Broxbourne - EN10

Enquiry from: Adam A

Start Date: Immediate

loft conversion with dormer- ensuite shower and toilet are you the property owner: owner of the property property type: semi detached what are you looking to convert the space into: bedroom/s are you ...

Post a similar request >

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FAQs

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.

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 disruptive is a loft conversion?

Asides the questions relating to planning permission of a loft conversion as well as the total cost of completing a loft conversion project, this is perhaps the most common question on the loft conversion subject matter. Before making an investment decision, many homeowners will want to know just how disruptive a loft conversion is. Well, we’ve all heard the several horror stories when loft conversion builder with dirty boots tramples all over the fresh and just-acquired shag pile or the noise of the construction loud enough to annoy neighbours from four blocks away or an obvious shortage of teabags, sugar and lots more. Good news is, the disruption of loft conversion is not as bad as people make out. Let’s have a look at how it works!

Just like all other major building projects, a loft conversion is disruptive to your property. However, no two loft conversions are the same, therefore some are certain to be more drastic and invasive than others. In the long run, the project is worth the stress and inconveniences caused and in most cases, it’s usually a very good investment.

Normally, an average loft conversion is expected to last for about 9 to 12 weeks (depending on the complexity of the loft conversion project some might take longer). Some of the factors that affects the duration of a project includes the type of the loft, the design of the loft as well as the style of the property.

Generally, a loft conversion is a lot less disruptive than say completely moving a home. It all has to do with how you’re able to deal with it as a person. And besides, the effect it’s going to have to a large extent depends on the company you hire. A good company will always look to ensure to keep disruptions to a minimal when carrying out the loft conversion project.

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.

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Customer Reviews

Overall rating:


Knebworth Loft conversion installers are rated 4.5 out of 5 based on 5 reviews of 68 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 Knebworth Loft conversion contractors
Adding a flat roofed dormer window to an existing loft conversion in New Malden Published: 16/12/2024 Adding a flat roofed dormer window to enhance an existing loft conversion in New Malden, KT3. Expert advice on installation, materials, and local factors to consider. Read this article
Skylight installation for a loft conversion bedroom in Banbury Published: 05/12/2024 Are you looking to install a skylight in your loft conversion? Learn about skylight installation on natural slate roofs in Banbury, including costs, materials, and tips for preparation. Read this article
Installing three dormer windows in loft conversion with sloping roofs in Grays Published: 03/12/2024 Professional installation of three small dormer windows with sloping roofs in a detached property loft conversion in Grays. Read this article

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