Second storeys, rear extensions and garage conversions that look like they were always there.
An addition is a small new house joined to an old one. We design the structure, match the exterior and tie the new roof and services into the existing building so the seam disappears.
What is included
- Feasibility study, zoning review and permit drawings
- Structural engineering and foundation work
- Framing, roofing and weather-tight envelope
- Tie-in of heating, plumbing and electrical services
- Exterior cladding matched to the existing house
- Typical timeline4–8 months
- Typical budget$250k–$700k
- Warranty2 years workmanship
How we run it
For a second storey we plan the roof opening around the weather forecast and keep the house dry with a temporary roof until the new one is sealed.
Good to know
Most additions need a zoning review. We check what your lot allows before you pay for full drawings.