It has come time to you needing more space within your existing home, so you are looking to do an addition. Along side of the addition may also be renovations, so also read into Home Renovations.

There are two major differences in additions which have different outcomes. One is living in town with municipal amenities & the other is living in rural countryside. Both have different Zoning by-laws & in rural areas additions can have an effect on your existing septic system. Whether in town or rural, additions do require a number of subconsultants, the septic system will require an extra subconsultant. To start the process for an addition with our firm it will require a consultation. Please feel free to contact us.

To explain the start of our process, if retained for services, Matthews Design would complete a site visit to field measure your existing house to produce “As Found” drawings in AutoCAD format, including all floor plans and exterior elevations as necessary for your specific project. These initial drawings are then used to start the Sketch Design phase. At Matthews Design we can also use these drawings to send to the relevant subconsultants to complete their work. For the Sketch Design phase, Matthews Design will produce computer generated sketch floor plans and elevations incorporating your criteria into design concepts. This is a very important phase in the designer/Client relationship as we require input from you to sort through different design concepts. Our goal is to meet 100% of your design criteria before approval and final sign off.

The final phase of Architectural process is the working drawings. At Matthews Design this does not require a lot of meeting time with you, however it does require the most amount of work to complete the required permit drawings. The working drawing package shows all structural information along with dimensions, details and construction notes. This information will provide a clear scope of work allowing professionals and tradesmen to be able to construct your project.

In addition to the working drawings is a building code review and a provincial License Stamp in order to submit the plans for building permit at your local municipality.

We will review and take responsibility for the design work on behalf of our firm registered under subsection 3.2.4 of Division C, of the Ontario Building Code. We are qualified and the firm is registered, in the appropriate classes/categories as regulated by the province.

A little earlier we were talking about subconsultants. Here is an idea of the many different subconsultants that may be required for your project. Depending where you are located you may be subject to the laws and by-laws of a Conservation Authority. There are several agencies that require different conditions and parameters to be met, again all depending on what municipality and area you live in.

Some additions are designed using engineered roof trusses, which require a stamp from the truss company. There are other structural requirements, such as when your addition exceeds Part 9 of the Ontario Building Code; the Municipal Building Department will require a Structural Engineer Review under Part 4 of the Ontario Building Code. This can be explained easier when at each specific property.

Another Subconsultant would be HVAC (Heating, Ventilation and Air Conditioning). If your addition adds living space to your home a Heat Loss/Heat Gain calculation is required and must be produced by a licensed (B.C.I.N.) consultant.

Here is an idea of the many different sub-consultants that may be required for your project. Depending where you are located you may be subject to the laws and by-laws of a Conservation Authority. There are several agencies that require different conditions and parameters to be met, again all depending on what municipality and area you live in.

Some additions are designed using engineered roof trusses, which require a stamp from the truss company. There are other structural requirements, such as when your addition exceeds Part 9 of the Ontario Building Code; the Municipal Building Department will require a Structural Engineer Review under Part 4 of the Ontario Building Code. This can be explained easier when at each specific property.

The final Sub-consultant that may be required is a Septic Engineer. Again this is only for people living in rural country side or in houses with existing septic systems. The basic Ontario Building Code rule for septic systems is, if the addition exceeds 15% of your existing liveable area or you are planning to add a bedroom or any plumbing fixtures then you are required to provide a septic system assessment to prove your existing system can withstand the addition or your existing system will require upgrading or replacement.

This may have you thinking of all kinds of scenarios, or be so much information it is overwhelming. As earlier mentioned in “How to Get Started” I hope you had a chance to write down any questions, give us a call, set up a meeting and we can lead you through your project. Remember, this is not supposed to be stressful. Look forward to hearing from you.