Garage Conversion Co.
Feasibility Process Christchurch Contact
Field Guide Vol. 01 Canterbury

Fixed-fee garage conversion assessments for Christchurch and Canterbury.

On-site measure, structural check, consent pathway, written scope. One call, one visit, one document. If your garage isn't suitable, we'll tell you straight — before you spend.

Fixed fee, credited against the build if you proceed. Usually booked within a week.

Not sure yet? Check if your garage is suitable

§ 01

What you get.

  • On-site measure and photo record
  • Existing-structure and weathertightness check
  • Ceiling height, floor level, and egress assessment
  • Insulation and moisture-control plan
  • Council consent pathway analysis
  • Written scope and compliance summary
  • Indicative timeline for design and build
  • Honest call on whether to proceed

You walk away with a document you can use — whether you build with us or not.

§ 02

Quick feasibility check.

If you want a rough read before booking an assessment, run your garage through this. Takes 30 seconds.

§ 02 — Quick check

Estimate only · Not council-binding

§ change of use
§ B1 / E2
§ district plan
§ G4
§ G4
§ district plan
Consent pathway
Key code clauses
Indicative timeline
Recommended next step
Note

How to read this estimate

The feasibility check applies typical Building Code and consent pathways only. It does not replace a measured site assessment or council pre-application advice.

§ 03

Short-stay and Airbnb conversions.

Short-stay accommodation isn't a bedroom with a guest in it. Under the Building Code, it's a different use class — with stricter fire, egress, and ventilation requirements than standard residential. We've converted garages specifically for Airbnb and short-stay use in Christchurch, and we know which details councils actually check.

What changes for short-stay

  • Fire safety moves from standard residential (C/AS1) to managed sleeping use — interconnected smoke alarms, escape routes, and sometimes separation from the main dwelling
  • Ventilation must meet habitable requirements for guests who won't open windows
  • Moisture control matters more — guest laundry, towels, longer showers
  • Christchurch District Plan rules about where short-stay is permitted, restricted, or non-compliant
  • Resource consent implications if the use falls outside the permitted activity definition

What we do for short-stay clients

  • Confirm short-stay is permitted at your specific address before design starts
  • Design to the correct Building Code use class from the outset
  • Specify fixtures and finishes that survive guest wear — not domestic-spec
  • Build with the durability and cleanability that short-stay reviews depend on
  • Document the build so the property file supports resale later

Thinking about a short-stay conversion? The feasibility check above handles Airbnb as one of the intended-use options — run it, then book an assessment.

§ 04

What we build to.

H1

Insulation to current energy efficiency levels — walls, ceiling, and concrete slab edge where required.

E2 / E3

Weathertightness and internal moisture control, including damp-proof membranes on existing slabs.

G4 / G7

Ventilation and natural light sufficient for habitable use — typically openable window area ≥ 5% of floor area.

B1 / B2

Structural adequacy and durability — assessed against original construction and any modifications.

C/AS1

Fire safety: smoke alarms, escape routes, separation where conversion adjoins the main dwelling.

§ 05

Ready to know where you stand?

Book a fixed-fee site assessment. One call, one visit, one document. If your garage isn't suitable, we'll tell you straight.