Define the reason to grow
Describe the activities your current home cannot comfortably support. Compare rearranging existing rooms with adding new floor area before committing to an addition concept.
- What must the new space make possible?
- Which existing rooms should connect to it?
- Could reworking an underused room address part of the need?
Establish site and building feasibility
Property boundaries, site conditions, existing structure, and utility locations can influence a design. Ask the appropriate design professionals and local authorities which records, assessments, and approvals apply to your property.
- Are current property records or a survey available?
- Who will assess structure, foundation approach, drainage, and utility implications?
- Who confirms local land-use and building requirements before detailed design?
Resolve the connection to the existing home
A coherent addition needs more than another room. Review circulation, floor transitions, roof connections, exterior materials, and heating and cooling as one project.
- How will people move between old and new spaces?
- What changes are needed in the existing house to make the connection?
- Does the proposal include temporary weather protection and restoring affected areas?
Define responsibilities before construction
Clarify who owns design, engineering, approvals, trade coordination, and construction administration. A concept drawing and a construction-ready scope are different deliverables; establish the next decision at each stage.
- Which drawings and investigations are included in the design agreement?
- What must be approved and selected before a construction price is confirmed?
- How will access, household disruption, changes, and completion be managed?
Your planning checklist
- Describe the purpose of the additional space and your must-haves.
- Gather available property records and existing plans.
- List alternatives within the current footprint.
- Identify the professionals needed for feasibility and design.
- Ask for staged deliverables, responsibilities, exclusions, and a change-approval process.
These are general planning prompts, not a site assessment, cost estimate, or statement of local rules. Confirm project-specific requirements with qualified professionals and the authority responsible for your property.