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Loft Conversion Cost London and Hertfordshire United Kingdom

Updated: 5 days ago

Are you wondering what will your loft conversion cost? We have 3d view of how the loft conversions might look and costs associated. Unsure of what type of loft conversion would suit your property? You will gain an understanding of different types of design and build loft conversions projects in 3d view such as dormer loft conversion, hip to gable loft conversion, l shaped loft conversion, mansard loft conversion or velux loft conversion.



Loft conversion Cost


Want to get an idea of the cost right now for loft conversion on terraced house, end of terrace, semi-detached or detached house, whether it is dormer loft, hip to gable loft, L shaped loft, mansard loft or velux loft cost? Why not use our instant cost calculator for loft conversions including architecture design cost and construction cost.



Dormer loft conversion with a bedroom and en-suite.


Estimated cost: from - £36,000.00


Optional Extras:

  • Skylights, Small Lantern or Velux Windows, Side Windows

  • Bi-fold doors or French Doors with Balustrades

  • Change Front Roof Tiles, Gutters and Fascia

  • Floor finishing in carpet or wood, Oak Stairs

  • Combi System Upgrade or Consumer Units, Plumbing and Electrical Upgrades

  • Bathroom Supply and Install



Hip to Gable Loft Conversion with a double bedroom and en-suite.


Estimated cost: from - £39,000.00


Optional Extras:

  • Skylights, Small Lantern or Velux Windows, Side Windows

  • Bi-fold doors or French Doors with Balustrades

  • Change Front Roof Tiles, Gutters and Fascia

  • Floor finishing in carpet or wood, Oak Stairs

  • Combi System Upgrade or Consumer Units, Plumbing and Electrical Upgrades

  • Bathroom Supply and Install



L Shape Loft Conversion with large bedroom or two bedroom and en-suite.


Estimated cost: from - £45,000.00


Optional Extras:

  • Skylights, Small Lantern or Velux Windows, Side Windows

  • Bi-fold doors or French Doors with Balustrades

  • Change Front Roof Tiles, Gutters and Fascia

  • Floor finishing in carpet or wood, Oak Stairs

  • Combi System Upgrade or Consumer Units, Plumbing and Electrical Upgrades

  • Bathroom Supply and Install



Mansard Loft Conversion with large bedroom or two bedroom and en-suite.


Estimated cost: from - £55,000.00


Optional Extras:

  • Skylights, Small Lantern or Velux Windows, Side Windows

  • Bi-fold doors or French Doors with Balustrades

  • Change Front Roof Tiles, Gutters and Fascia

  • Floor finishing in carpet or wood, Oak Stairs

  • Combi System Upgrade or Consumer Units, Plumbing and Electrical Upgrades

  • Bathroom Supply and Install


Velux Loft Conversion with Bedroom.


Estimated cost: from - £29,000.00


Optional Extras:

  • Velux Windows, Side Windows

  • Change Front and Rear Roof Tiles, Gutters and Fascia

  • Floor finishing in carpet or wood, Oak Stairs

  • Combi System Upgrade or Consumer Units, Plumbing and Electrical Upgrades

  • Bathroom Supply and Install






What is the cost of the loft conversion and house extension?

You can use our "instant quote calculator" and find out the cost in seconds! for both design and build, architecture services or just construction services depend what stage you are in and what you have so far completed.


We have experience of over 15 years in design and construction of loft conversions and home extensions in London and Hertfordshire areas and have worked out a unique calculation formula that you can find out to what your house extension and loft conversion will cost in seconds.


How can Lccl Construction be of help?


Do you require a loft conversion and house extension to add extra space?

Do you require architecture design and construction services?

Then look no further get in touch with us for a detailed free no obligation quote. We can accommodate a very quick turnaround. Our loft conversions and house extensions come with 10 year guarantee and 12 month workmanship guarantee.


Use our instant quote calculator for a quote about your project whether construction only or design and build.


Use our Free consultation call booking system to schedule a call at the time and date that suits you best.


LCCL Construction

Telephone: 020 8037 7332

Email: info@lcclconstruction.co.uk

Web: https://www.lcclconstruction.co.uk

Free consultation call: https://www.lcclconstruction.co.uk/book-online

Instant quote online: https://www.lcclconstruction.co.uk/instant-quote

How does it work? https://www.lcclconstruction.co.uk/how-does-it-work


More related types of loft conversions and everything you need to know about them:


Dormer loft conversion




The most popular and most talked about type of loft is "Dormer Loft Conversion". So what is a dormer loft conversion? is it right for your home? dormer loft conversion guide













Hip to gable loft conversion


A Hip to Gable loft conversion is very popular on semi-detached & detached properties with sloping roofs, which is essentially a roof with a sloping side in addition to the slopes at the front and back. Hip to gable loft conversion guide






Mansard loft conversion


A mansard loft conversion, named after the 17th-century French Architect Francois Mansard, is situated to the rear of the property. This type of conversion has a flat roof, with the back wall sloping inwards at an angle of 72 degrees. Mansard loft conversion guide













L shaped loft conversion


An L shaped loft conversion is absolutely ideal for period properties with a back addition as you can also extend up the top of the back addition to get loads more space. L shape loft conversions guide








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