
HMO Conversion – Design & Build Project, Guildford
Client: Confidential
Location: Guildford
Sector: Residential Investment / HMO
Service Type: Design & Build | Property Refurbishment | HMO Conversion
Duration: 12 Weeks
Completion Date: September 2025
Project Overview
NMSM Construction was commissioned to deliver a full HMO conversion and refurbishment for a London-based property investor. The project involved transforming a standard residential house into a fully licensed House in Multiple Occupation (HMO), tailored for modern tenants and fully compliant with London’s HMO regulations.
Our integrated Design & Build team oversaw every phase — from architectural planning and regulatory submissions to complete interior fit-out, fire safety upgrades, and final certification. The outcome: a safe, stylish, and high-yield property designed for professional tenants.
Project Objectives
- Convert a single dwelling into a fully compliant six-bedroom HMO
- Enhance energy efficiency, soundproofing, and overall tenant comfort
- Deliver a premium finish suitable for long-term professional occupancy
- Complete within a 12-week construction programme, ready for market launch
Scope of Works
Architectural Design & Planning
- Layout redesign for optimal space use, ensuite integration, and communal flow
Construction & Conversion
- Partition walls, insulation, and new fire-rated doors throughout
Electrical & Mechanical Upgrades
- Full rewire, LED lighting, emergency lighting, interlinked smoke alarms, and extractor systems
Bathrooms & Kitchens
- Modern kitchens with integrated appliances and tiled splashbacks
- Refurbished bathrooms featuring walk-in showers and contemporary finishes
Bedrooms
- Fully redecorated, furnished rooms with bespoke joinery and modern lighting
Compliance
- Fire safety installations, building control sign-off, and full HMO certification
Exterior & Landscaping
- Façade cleaning, fencing, and garden redesign to enhance curb appeal
Challenges & Solutions
Challenge 1 – Maximising Occupancy Without Overcrowding Limited footprint required smart design to meet HMO spacing standards. Solution: Our design team reconfigured circulation routes to accommodate six ensuite bedrooms while preserving communal comfort.
Challenge 2 – Compliance & Inspections Navigating local authority inspections within tight deadlines. Solution: NMSM maintained early engagement with building control and HMO inspectors to ensure full compliance ahead of schedule.
Challenge 3 – Noise & Fire Safety Standards Upgrading acoustic and fire protection in a multi-level structure. Solution: Installed high-density acoustic plasterboard, soundproof flooring systems, and FD30-rated fire doors with automatic closers.
Results
- Delivered on time and within budget despite regulatory complexity
- Achieved full HMO licence approval on first inspection
- Created a stylish, energy-efficient, and profitable investment property
- Increased rental yield potential by over 45% compared to the original layout
Key Outcomes
- Demonstrated NMSM Construction’s full Design & Build capability from concept to completion
- Reinforced NMSM’s reputation as a trusted partner for landlords, developers, and property investors
- Showcased our commitment to quality, compliance, and attention to detail in London’s competitive housing market
Project Highlights:
- Full exterior refurbishment and landscaping
- Contemporary kitchen and dining area
- Ensuite bathrooms with designer tiles
- Modern bedrooms with integrated lighting and furnishings
- Fire safety installations and acoustic upgrades
💬 Client Testimonial
“NMSM Construction managed every aspect of the conversion with precision. From planning to completion, their team handled compliance, design, and delivery flawlessly. The finish is exceptional — and the property achieved full HMO licence without delays.”
Sustainability & Safety
- High-efficiency boilers and LED lighting
- Waste reduction through recycling partnerships
- Eco-friendly materials for flooring and paint
- Fully compliant with NMSM Construction’s Governance Framework and Health & Safety Standards
Why Choose NMSM Construction for HMO Conversions
- Turnkey Design & Build delivery
- In-house planning and architectural support
- Fire safety, electrical, and compliance expertise
- Proven success with HMO investors across London





























