Converting Your Attic into a Bedroom: Complete Checklist

The Complete Bedroom Conversion Checklist

Converting your attic into a bedroom? This checklist ensures you don’t miss any critical steps—from planning to completion.

Phase 1: Planning & Assessment

Initial Checks

• Measure attic: Length, width, height at multiple points
• Check headroom: Minimum 2.2m in 50% of floor area
• Assess structure: Can roof support additional load?
• Identify obstacles: Chimneys, water tanks, beams
• Check access: Where will staircase go?

Planning Permission

• Determine if needed: Exempted development or not?
• Research local rules: Conservation area? Protected structure?
• Talk to neighbours: Discuss plans before applying
• Budget for fees: €65 application + professional costs

Budget Planning

• Set total budget: Include all costs + 15% contingency
• Get multiple quotes: At least 3 contractors
• Check SEAI grants: Could save €1,500-€6,300
• Plan financing: How will you pay?

Phase 2: Design & Professionals

Professional Team

• Hire architect: For design and drawings (€1,500-€3,000)
• Structural engineer: Load calculations (€800-€1,500)
• SEAI contractor: For grant eligibility
• Building surveyor: If needed for older properties

Design Decisions

• Conversion type: Velux, Dormer, or Hip-to-Gable?
• Room layout: Bed position, storage, circulation
• Window placement: Light, ventilation, escape
• Ensuite bathroom: Include or not?
• Heating solution: Extend existing or new system?

Building Regulations

• Part B (Fire Safety): Escape route, smoke alarms, fire doors
• Part K (Stairs): Width, headroom, pitch
• Part L (Energy): Insulation, ventilation
• Part F (Ventilation): Air circulation, trickle vents

Phase 3: Pre-Construction

Contractor Selection

• Get detailed quotes: Itemised breakdowns
• Check credentials: Insurance, certifications, SEAI registration
• Review portfolios: Similar completed projects
• Contact references: Previous clients
• Sign contract: Terms, timeline, payment schedule

Material Selection

• Flooring: Type and finish
• Windows: Velux, dormer, sizes
• Insulation: Type and thickness
• Doors: Fire-rated for escape routes
• Finishes: Paint, wallpaper, trim

Site Preparation

• Clear attic: Remove all items
• Protect lower floors: Dust sheets, covers
• Arrange storage: For furniture and belongings
• Notify neighbours: About potential disruption
• Plan accommodation: If needed during construction

Phase 4: Construction

Structural Work

• Staircase installation: New or modified
• Floor strengthening: Support additional load
• Roof modifications: If dormer/hip-to-gable
• Structural openings: For windows/doors
• Beam installation: Load-bearing supports

Windows & Doors

• Window installation: Roof or dormer windows
• Weatherproofing: Flashing, sealing
• Insulation around openings: Prevent cold spots
• Test operation: Open/close properly
• Install blinds/curtains: Light control

Services

• Electrical: Lighting, sockets, smoke alarms
• Plumbing: If including ensuite
• Heating: Radiators or underfloor
• Ventilation: Extractor fans, trickle vents
• Test all systems: Proper operation

Insulation & Fire Safety

• Floor insulation: Between joists
• Wall insulation: Knee walls
• Roof insulation: Between rafters
• Vapor barrier: Prevent moisture
• Smoke alarms: Interlinked system
• Fire doors: Self-closing, rated

Finishing

• Plasterboard: Walls and ceilings
• Plastering: Smooth finish
• Painting: Walls and ceilings
• Flooring: Install chosen covering
• Skirting & architrave: Trim
• Storage: Built-in wardrobes, shelving

Phase 5: Completion

Final Checks

• Building control inspection: Get sign-off
• Electrical certification: Part P compliance
• Fire safety check: All systems working
• BER assessment: Energy rating
• Snag list: Fix any defects

Documentation

• Completion certificate: From building control
• Warranties: Materials and workmanship
• Maintenance guides: For all systems
• Update insurance: Notify insurer
• Keep all receipts: For warranties and grants

Finishing Touches

• Deep clean: Remove construction debris
• Final decorations: Curtains, blinds, accessories
• Furniture arrangement: Set up bedroom
• Final inspection: Everything complete and working

Timeline Expectations

Phase	Duration
Planning & Design	4-6 weeks
Planning Permission (if needed)	8-12 weeks
Preparation	1-2 weeks
Construction	4-8 weeks
Finishing	2-3 weeks
Total	12-24 weeks

Budget Checklist

• Construction costs: €15,000 - €55,000
• Planning permission: €0 - €5,000
• Professional fees: €2,500 - €8,000
• Contingency (15%): €2,500 - €8,000
• SEAI grants: -€1,500 to -€6,300 (savings)

Get Professional Help

This checklist covers everything, but professional guidance makes the process smoother. We’ll guide you through each step, handle all regulations, and deliver your dream bedroom on time and budget.

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Disclaimer: Every property is unique. Always consult qualified professionals for your specific project.