A bespoke drafting studio

SJH Drafting is a small bespoke Building Design and Architectural drafting studio specializing in custom designs for Residential and Commercial projects.

Owner Shaun Hagenson has over 12 years of experience in the Design and Construction Industry where he has been able to hone his skills to create unique design dwellings to meet his client’s needs.

His passion is to create unique, practical and liveable spaces that incorporate sustainable design principles and environmentally friendly design solutions. This passion led him to become a qualified Energy Assessor to further his knowledge and apply these elements to his creations.

Have a project? Would love to help

Drafting Services

SJH Drafting recognizes that each project is different and unique in its own way. To cater for this, we provide a detailed scope of works that aligns with the specific requirements of each individual project.

  • Site Feasibility
  • Site Measure & Document Existing
  • Concept Design
  • 3D Presentation
  • Residential Energy Efficiency Assessments – New homes only
  • Planning/Development Approval
  • Building Licence Approval
  • Construction Working Drawings
  • Tender
  • As Built Documentation

The SJH Drafting Difference


Our Design Process below outlines the steps we take to create your dream home

Initial Design Brief

Here we meet with you to discuss your upcoming project and take a detailed design brief of what you are hoping to achieve and your budget for the project.

Concept Design

Now we have your design brief we begin creating concept design drawings. These concepts are presented and fully explained to you so that you fully understand the thought process behind the design and we answer any queries you may have. At SJH Drafting we model your project in 3D so you can visualise your design and see how it will look on your site.

Development Approvals

Once the Concept has been finalised and approved, we can handle the Planning Approval process with your Local Authority and provide suitable Architectural documentation to meet Shires requirements to ensure the project obtains planning approval.

Building Permit / Construction

Based on the approved Development Approval we will liaise and coordinate with the required consultants (Structural, Energy, Interior) to prepare full construction working suitable to obtain a Building Licence from your Local Authority.


We will tender your project out to reputable builders that we frequently deal with on a regular basis. Once we receive the final costings from the Builders, we will present their proposals to you in order for you to appoint a builder and begin construction.

Satisfied Client Stories

We have been using SJH Drafting for our fencing projects around Perth for several years. Shaun's knowledge within the building industry and being across council regulations and requirements here in Perth has been invaluable in our dealings. This combined with the high standard of detail in his drafting makes for a service which is second to none. He has completed detailed drawings for us from boundary retaining walls to full front boundary brickwork with gate access, ensuring not only that it complies with residential design codes but that it is also functional and aesthetically pleasing. Shaun is friendly, prompt, reliable and honest and his prices are extremely competitive. As well as working with us on projects for our company, he has now completed several jobs for our home renovations too (detailed house plans and a carport addition). We highly recommend SJH Drafting, whom we will continue to use in the future.
Brad Spray
Fencing & Gate Co
We found that Shaun was easy to deal with, really personable and gave us great design ideas when we were looking to add a two story extension on to our existing home. He delivered final plans in a timely manner, consulted with both us , structural engineers and the council, making what has in the past been a tedious process fairly straightforward. I wouldn't hesitate to recommend Shaun to our family and friends when they need drafting services in the future.
Gordon Mason
Mullaloo Extension
We have worked with Shaun from SJH Drafting for over 3 years. Shaun has a great knowledge of all aspects of construction, which shows in the quality of his drawings. As a builder, this enables us to deliver projects on budget and on time.
Colin Campbell
Camstruct Design & Build
I wanted to take a few minutes to let you know how pleased we were with your service. The entire process was seamless and handled in a timely manner. Your expertise in how best to realise our vision, whilst keeping our strict budget requirements in mind, made us feel comfortable in our decision. Thank you again for your assistance and we cant wait to utilise our new space.
Alex Junior Espresso
My wife and I could not have been happier with the service and results that we received from Shaun for the renovation design of our 1940's character home. Shaun not only drew up and modelled exactly what we were after, but also made significant design improvements that we would not have considered, were it not for his innovation and advice. Shaun also displayed a comprehensive knowledge of our local councils planning requirements and facilitated the entire approvals process, saving us a lot of angst. Shaun maintained a high level of communication throughout the entire process, and provided regular status updates along the way. We would like to thank you for the exceptional level of service that you provided and would wholeheartedly recommend you to others seeking high quality drafting and design services.
Brent & Anna Aitken
Doubleview Addition

Residential Energy Efficiency Assessments

SJH Drafting provides energy assessments for all new residential dwellings, duplexes and apartments using The NatHERS (Nationwide House Energy Rating Scheme). NatHERS is the most common way to show that a new home meets the minimum state and territory building energy efficiency requirements based on the National Construction Code (NCC).

It involves modelling your design using accredited software (FirstRate™). This advanced software analyses your building and assessors the heating and cooling loads required to keep your house at a comfortable temperature and provides you a star rating from 0-10 stars based on your design. In WA you are required to achieve a minimum energy star rating of 6 stars to achieve compliance.

Energy Efficiency

By incorporating some simple Passive Design Principles into your home design, you can reduce your heating and cooling costs, improve the overall energy efficiency of your home and make it more comfortable space to live in and above all reduce the greenhouse gas emissions for the life span of you home.

Passive Design Principles relate to:

  • Orientation
  • Shading
  • Passive Solar Heating
  • Passive Cooling
  • Sealing of your home
  • Insulation
  • Thermal mass
  • Glazing
  • Type of building materials used
  • Construction methods

Residential Energy Services

  • Single Storey Homes
  • Two Storey Homes
  • Custom Designed Homes
  • Unit Developments


Alex Junior Coffee Shop

Chelmsford Residence Mt Lawley

Grand Promenade Addition Doubleview

Napier Street Cottesloe

Templetonia Barn Residence City Beach

Millimumul Addition Mullaloo

SJH Drafting is ready when you are

Architectural documentation

Architectural Documentation is one of the key facets of the design process. The process of methodically developing construction types and materials and making them dimensionally correct to form a building detail that interacts with its surrounding elements provides the builder with a detailed record of how all aspects of the building will fit together to make up the building form.  This helps the builder to estimate, plan and construct from and makes for a seamless building process.

View some previous plans

SJH Drafting

Please leave SJH Drafting a message with some information about your project
and we will get back to you ASAP!