Ensuite bathroom

Second-Floor Addition

Adding a second floor to a 1,000 sq. ft. bungalow including full renovation of 1,000 sq. ft. ground floor.

Project Estimate



Wondering how much your home renovation project will cost? Searching online and talking to friends, family, and experts can be confusing. Accurate cost estimates can only be determined by assessing your property, understanding your needs, and running numbers with a professional.

You can use our price guide to get an idea of costs before investing in professional consulting, design, and estimating services.

Keep in mind these costs don't include taxes or rebates. Contact us today to schedule a call with one of our experienced renovation consultants.

Design & Project Management


Measure and document existing 1,000 sq.ft. home.

Prepare Plans

Prepare floor plans and elevations of existing house and site plan as required for space planning.

Define Scope

Consult with architectural designer to define project scope and feature requirements.

Prepare Concepts

Conceptual plans with required revisions.

Permit Drawings

Detailed permit drawing package with necessary engineering for structural impact of adding 2nd floor.

Prepare Finishes

Detailed bathroom and kitchen cabinet drawings and finishes selections sheet, and provide finishes assistance from interior designer.

Engineer Review

Prepare HVAC heat loss calculations and heating system design drawings by heating engineer.

Electrical Plans

Provide electrical and lighting plan for ground and second floors.

Obtain Permits

Obtain permits.

Project Management

Project management planning, oversight and supervision of construction.

Freestanding tub and french-doors opening to backyard
A space specifically designed for those moments of well-earned relaxation

Construction Scope

  1. 1.Demolish and dispose of all finishes and partitions throughout ground floor, exposing perimeter solid masonry walls. Demolish and dispose of roof.
  2. 2.Modifications to existing masonry walls to accommodate new/altered window door openings.
  3. 3.Framing for new second floor addition.
  4. 4.Perimeter and partition wall framing for revised layout at existing ground floor.
  5. 5.Provide roofing.
  6. 6.Patio door, front door and new windows throughout ground and second floors.
  7. 7.Stucco exterior cladding and required aluminum soffit, fascia, eavestroughs and downspouts for new rear addition. (existing ground floor exterior walls left as-is).
  8. 8.All new HVAC equipment and new ductwork as required.
  9. 9.Plumbing for kitchen including good quality sink and faucet.
  10. 10.Plumbing for 2.5 bathrooms including 1 freestanding tub, 1 custom shower, 1 tub/shower, 1 double sink vanity, 2 single sink vanities, 3 toilets, including good quality plumbing fixtures.
  11. 11.New wiring and lighting throughout ground and second floors.
  12. 12.Code-compliant insulation at walls, ceiling and floor of second floor, and provide 3” of two pound spray foam throughout walls of existing ground floor.
  13. 13.Drywall at walls and ceiling throughout ground and second floors.
  14. 14.Tile flooring at front entrance and provide engineered wood flooring throughout ground floor and second floors (except bathrooms).
  15. 15.Tile at kitchen backsplash, at floors of bathrooms, and at shower and tub-surround areas.
  16. 16.New oak staircases and wood guardrail and handrails at ground to second floors and at newly positioned ground to basement stairs.
  17. 17.Provide 16 solid paint grade interior doors with hardware, paintgrade jamb extensions at windows, paintgrade door jambs, paint grade casings and baseboards throughout ground and second floors.
  18. 18.Custom kitchen cabinets and solid surface countertops.
  19. 19.Basic closet interiors for bedrooms and front hall closet.
  20. 20.Priming and painting (2 finish coats) throughout ground and second floors.
  21. 21.Shower glass and bathroom accessories.

Additional Costs

$14,000 -> $35,000

Gas fireplace and decorative surround

$5,000 -> $50,000

Add electrical and/or smart home AV electronics

$8,000 -> $50,000

Add custom millwork/wall units

$10,000 -> $80,000

Kitchen appliances

Above cost range figures include the costs of trade contractors, labour, materials, additional design, permits, project management and GC fees where applicable, but do not include HST