Budget Guideline: $50,000 to ($Hundreds of thousands)

Planning Phase

The Planning Phase for Interior Additions should start a minimum of three (3) months prior to start of build. This overall time is driven by the intensive design process.

An architect is a definite must for this type of project. Depending on the complexity of the interior, an interior designer may also be required. A civil engineer may also be required for this type of job if the engineering aspects (e.g., site, etc.) necessitate one. For more simple and straightforward jobs, the architect may be able to act in all of these capacities.

Plans and drawings must pass an approval process of the county/town and the project must also meet the zoning requirements of the location. For example, an interior addition in a small rural area would be subject to much less stringent rules than an addition up for approval in Historic Downtown Leesburg, Virginia.

Once the county/town review is complete and approved, materials must be procured to ensure that the build process flows smoothly.

The type of project will also dictate whether the resident needs to find a temporary relocation. If the project disturbs the current living environment, the homeowner may have to relocate temporarily. Other projects may require the current resident to live without certain structural elements for a period of time. Still other projects may not disturb the present living space in any way.

Build Phase

The Build Process for an Interior Addition is 3 months - more than 6 months. The build steps include the following with inspections required for each part:

  • Site work (e.g., grading)
  • Dig footers
  • Pour concrete
  • Rough in utilities
  • Framing
  • Dry-in Framing
  • Roofing
  • Window and door installation
  • Exterior cladding
  • Standard interior work (drywall, flooring, paint, trim, electrical/plumbing.

Detailed drawings, budgetary estimates and zoning/permits are significant work items for the Build Process.