Garage
Status: Conversion to habitable room planned Target: Before winter 2025 Building Regs: Required (Building Notice or Full Plans)
Current State
Section titled “Current State”- Ceiling plasterboard removed (exposed)
- Roof is leaking (discovered November 2025)
- Integrated garage, same construction as house (cavity wall, double block, DPC)
- Contains: 22mm gas pipe, fusebox, main waste stack
- Garage door opening has footings underneath
- No insulation in ceiling or against rafters
- Mock Tudor facade inspection (15 June) - needs complete redo, planned summer 2026
Needs (Immediate)
Section titled “Needs (Immediate)”- Fix roof leak
- Reinstate ceiling once roof sorted
Conversion Plan
Section titled “Conversion Plan”Why Convert
Section titled “Why Convert”- Fire separation for attached garage is strict - conversion often easier
- Adds liveable floor space (~£2-3k/m² vs £3-4k+ for extensions)
- Solves house access/flow issues
- Already 90% of way to habitable (same build standard as house)
Building Regs Required For
Section titled “Building Regs Required For”- Garage conversion to habitable room
- New door from hall into garage
- Door through block partition to utility
Structural Work
Section titled “Structural Work”- Block up garage door opening
- New doorway from hall (bottom right corner)
- Fire separation (easier as room than garage)
Insulation
Section titled “Insulation”- Warm roof: insulation on felt (roof stays warm)
- 25mm PIR minimum (pragmatic) or multifoil + PIR hybrid
- Fire-rated board on ceiling
- Add insulation to concrete slab
- Match house floor level
Services
Section titled “Services”- Space for plumbing manifold (between gas pipe, fusebox, waste stack)
- Extractor ducting through to old boiler flue hole
Options
Section titled “Options”Full conversion now:
- Proper building control sign-off
- No fire safety questions later
- More work upfront
Temporary door opening:
- Quicker access
- May face building control queries
- Kicks can down road
- One of three slabs in house (“Frankenhouse”)
- Rafters accessible from outside
- Consider bifold door where window is (shorter heating run, south-facing)
- Water leaks noted November 2025