Loft Conversion Plans from £850 Inclusive

Your Complete Loft Conversion Design Service including drawings, structural calculations, council paperwork, submissions, and liaison all the way through to approval !

Now is the time to get your loft conversion off to the best start possible

If you are looking to convert your loft space then you will need a set of high quality accurate drawings for your contractors to work from. You will also need to ensure you have the required council permissions in place before work commences on site.

Let us take the worry and hassle away from you with our inclusive loft conversion design service

  • Friendly, helpful staff who will be on hand from your initial phone call or email  right through to the completion of your loft conversion to assist and answer any questions you may have along the way.
  • Measured survey.  You will be visited by one of our own in house survey teams (no subcontractors) who work from fully equipped vans including ladders, lighting equipment and top of the range laser measuring devices ensuring your plans are not only incredibly accurate, they also provide a true representation of your property.
  • Our plans are produced using the industry leader Autocad software.  Your plans will include existing and proposed floor plans, roof plans and elevations (front, side and rear).  Furthermore all loft plans will include a detailed Section Thru and a structural loft floor layout, will all beams, joists and structural elements backed up by structural calculations
  • We will also provide a full builders work specification on all our drawings, tailored to your project and written by one of our specialists to ensure 100% compliance with the latest building regulations requirements.
  • KJM Design are a LABC (local authority building control) Affiliate partner.  We are also a planning portal smarter planner accredited agent this means that we are able to prepare all of your council forms and submit these to your local authority taking all of the worry and hassle away from you.  We will also liaise with them on your behalf until such time as your plans are approved/decision notices are issued and the building work can commence on site.
  • Streamlined online service.  We will produce all drawings within 10 working days from date of survey.  All drawings are in electronic format ensuring submissions, revisions and alterations are carried out with minimal delay.
  • We are a UK registered company.  We have bricks a bricks and mortar office with a comfortable meeting room should you wish to pop by and discuss your drawings with your designer, we even supply free tea and biscuits!
  • KJM Design are fully insured, carrying full professional indemnity and public liability insurances  to provide complete peace of mind to our clients.
  • Residential Specialists ! Our business model has always been to offer the residential consumer a fast and cost effective method of obtaining accurate planning and building regulations drawings – we only work in the residential sector – designing Loft Conversions, Extensions, Conversions and Alterations therefore our experience and specialised knowledge of this sector is unrivalled.
Loft Conversion Plans - Whats Included

Are you interested in our great offer and would like to know more?

If you would like to receive further information about our fixed fee loft conversion package then please complete the online form located below and a member of our team will contact you (usually within 24 hours) via your preferred contact method.

Alternatively you can call us on 01375 267 888 – our office hours are 9am-5pm (Mon-Fri)


Professionally produced 2D Planning & Building Regulations Plans as well as 3D rendered models, structural calculations, SAPS assesments and much more besides – Let us be your one stop Loft Conversion Design Specialist


As Featured on TV

Channel 4s Double Your House For Half The Money


Back in 2012 one of our projects was featured in the popular Channel 4 television show ‘Double Your House for Half The Money’ hosted by Sarah Beeney.

Our project featured in Episode 10 of Series 2 whereby we produced full building regulations plans for a complete redevelopment of an ex dental surgery in Elstree into a dream home for Mr & Mrs Herman.

Click Here to view the episode

Affordable Loft Conversion Plans, Designed by Experts


We now offer clients a fully inclusive design package for any loft conversion being carried out under permitted development.

This service is offered to all clients within 75 mile radius of our offices in Essex.  If you live outside of this area please contact us as we may still be able to assist with your project!

Our Risk Free No Quibble Guarantee

Our Quotations are guaranteed to include UNLIMITED revisions for any alterations as required by your local authority until such time as your plans are approved. There are no extra costs GUARANTEED. You can budget your costs sure in the knowledge that there are no extra architect bills further down the line.