Comprehensive Loft Conversion Building and Planning Services in London

Make the most of your available living space with loft conversion planning and building services from Charles Jeffrey Ltd. Serving clients throughout , London, and the surrounding areas, we provide free, no-obligation surveys and quotations on all work. Understanding that every property is different, our skilled team ensure our services are personalised for your specific needs, from planning to completion. Get in touch today to book a survey.


Free Surveys and Quotations

When you choose a loft conversion from Charles Jeffrey Ltd, a member of our team will visit your property to carry out a free, no-obligation survey. This enables us to discuss your requirements and provide professional advice on your best option for your property and living space. Subsequently, you will be sent a fixed quotation detailing all proposed work and specifications, according to your needs and budget.

Should you wish to proceed, we will issue a schedule of payments and confirm the agreed work that is to be carried out. The cost of this quotation includes plans, working drawings, and structural calculations drawn up by our expert team. All plans are fully compliant with building regulations.

Upon accepting our quotation, we will ask you to forward a deposit with the completed payment plan so that we can originate plans and secure your place in our working schedule. Please note that your final payment will only be required once all work is completed and passed by local authorities/independent inspectors, and you are happy with the final result.



The proposed plans will be forwarded to you for your approval, enabling you to make any alterations before they are submitted for Local Authority Permission. If you require planning permission, we will also complete and submit the appropriate forms.

During this time, Charles Jeffrey Ltd will also liaise with the council concerning the progress of your application and act accordingly if required. Once planning permission and lawful development approval have been obtained, full plans and structural calculations will be submitted to the Building Control department or independent Building Control inspectors.

We will then send a statutory commencement notice to the council, informing them about when work on your property will begin. Working closely with the appointed inspectors without your conversion, we arrange site visits to inspect our work whenever appropriate.

Ready to Start

Once all relevant approvals have been obtained, we will confirm your start date. A team member will meet with you before work commences to keep you informed and ensure minimal disruption to your regular routine. Before commencing work, we will arrange for scaffolding to be erected and materials to be delivered.

Schedule of Work

Every loft conversion is different, depending on your property, type of loft conversion and design. However, they usually tend to follow the following format.



Page2 - Preparation

  • Independent Scaffolding Is Erected

  • Existing Loft Hatch Is Sealed Shut (This Will Be Plastered over Later)

  • Loft Area Is Accessed via an Opening in Your Roof

  • Existing Chimney and Tanks Are Removed, If Required

  • 1st Fix Materials Received

  • Skip Delivery Arranged


Structural Work

Page2 - Structural Work

  • All Load-Bearing Steels, Trimmers, and Steel Plates Designed for Your Loft and Installed

  • Structural Walls of Dormers, Hip-to-Gable-End Construction, and Mansard Formed

  • New Structural Floor Joists Are Laid


Plumbing Work – 1st Fix

Page2 - Plumbing Work – 1st Fix

  • Old Tanks Removed

  • Any Tanks in Use Disconnected and Relocated in the Void Area

  • New Pipework Laid, Ready to Accommodate New Sanitary Ware in Your Shower or Bathroom


Electrical Work – 1st Fix

Page 2 - Electrical Work – 1st Fix

  • New Wires Are Laid, Ready to Accommodate All Electrical Fittings in Your Loft Room(s)


External Work

Page 2 - External Work

  • New uPVC/Wooden Double-Glazed Windows Installed

  • Velux Skylight Windows and Flashing Kits Installed

  • Roofing Work, including Tiling, Leadwork, and Flat Roof, Is Completed

  • Fascia Boards, Guttering, and Down Pipes Fixed

  • New External Walls Rendered or Pebble-Dashed


Internal Work

Page 2 - Internal Work

  • Whole Loft Insulated to Comply with Building Regulations

  • Internal Walls Formed

  • Flooring Laid

  • Stairs to Loft Area Installed

  • Whole Loft Conversion Clad with Plasterboards

  • Two Coats of Plaster Applied to Boarded Areas


Plumbing Work – 2nd Fix

Page 2 - Plumbing Work – 2nd Fix

  • Radiators, Sanitary Ware, and New Boilers Installed

  • Waste Connections Installed in Your Existing Drainage System

  • Existing S.V.P. Is Extended


Electrical Work – 2nd Fix

Page 2 - Electrical Work – 2nd Fix

  • Wiring Connected to Your Existing Fuse Board, including Plug Sockets, Light Points, Extractor Fans, etc.


Second Fix

Page 2 - Second Fix

  • Skirting and Architrave Fixed throughout Room

  • Fire-Checked Doors with Self-Closing Devices Hung

  • Self-Closing Devices Fitted to All Existing Doors on the Stairwell



Page 2 - Completion

  • Site Cleared

  • Scaffolding Removed

  • All Skips Removed


Building Control Approval

Page 2 - Building Control Approval

  • Inspections from the Appointed Building Inspector Will Take Place throughout Conversion

  • Final Inspection Carried out upon Completion

  • Completion Certificates Issued

Bespoke Loft Conversion Services

Specialising in loft conversion planning and building, our skilled and experienced team cater to all of your needs.