Phone: 01933 316 044

Local service visits & remote advice throughout all of the U.K.

Over 30 years of Technical Drawing experience.

Free initial consultation and site visit.**

Architectural designs, Extensions, Planning and Building plans.

Jon Spencer Technical Drawing Services provides planning and building regulation applications for residential extensions of all types and sizes. With more than 30 years of technical drawing experience, Jon Spencer can provide practical guidance to get your project started efficiently while achieving a satisfactory build to your requirements.

What We Do

We have extensive experience in all areas of residential work:

Three houses next to eachother. Ascending in height.
  • Small, medium or large scale single storey or two storey extensions
  • Loft conversions
  • Garage conversion
  • Porches
  • Conservatories
  • New build properties
  • Conversion of existing properties into flats
  • Planning applications
  • Building regulation applications
  • Detached/attached single/double garages and outbuildings
  • Feasibility Studies
  • Design and Development
  • Scheme Drawings
  • Planning Applications
  • Building Regulations Applications
  • Working Drawings
  • Draughting Services

How We Plan

Houses Connected

Visiting our potential clients enables us to better understand the project and give advice from both a planning and construction view point.

The Process

The ProcessesVisit the project

A discussion on site about the project along with timescales, requirements and the reasons for them, assists in our aim achieve the best solution for the client.

The ProcessesEstimated costs

After this stage we will offer fixed fees for our services and advise on budget figures for building costs should they be required.

The ProcessesFinalise the initial steps

Once appointed we will visit again to undertake a measured survey within 7-10 days. This timescale can be shorter or longer depending on your availability. Shortly after that we would normally return to show you drawings and suggestions to finalise the design prior to submission of the formal application.

The ProcessesBuild regulation drawings

Once planning has been granted we will progress to the building regulation drawings. These are the plans which provide the detail about how the proposal will be built. Throughout the build process we are available for consultation should problems arise.


"We would definitely recommend."

"Although we have only recently began working with Jon we have been very impressed by his efficiency & attention to detail. He has kept us informed throughout the process, answered any questions that we’ve had promptly & generally been a pleasure to meet. We would definitely recommend."

K, Bedford

"Plans look amazing!"

"Plans look amazing! As Sandie says “it’s just how I pictured our house, can’t believe it!” If she’s happy then so am I. Well done mate. Thank you for helping me to keep her happy."

PL, Irthlingborough, Northants

Ready to start your home extension plans?

We serve Northamptonshire and most of Bedfordshire and make no charge for the initial site visit and consultation. We will still visit projects from further away but request a small fee in advance to cover additional expenses.

House under construction.
Prefer to discuss remotely?

No problem. We are able to provide the initial consultation remotely at no charge.