Home Extensions & Alterations

House Extensions

At Celona Consulting, we design and deliver beautifully crafted residential extensions tailored to your lifestyle. Whether you want to create a larger kitchen, add extra bedrooms, or simply make better use of the space you already have, our expert team will guide you from the very first sketch through to planning approval, building regulations, and construction drawings.

For us, an extension isn’t just about extra square metres – it’s about creating a home that works for you and your family. It’s an opportunity to re-think layouts, improve natural light, and adapt your property to modern living. In short, it’s your chance to make a house your home.


Types of Extensions & Alterations We Offer

Single Storey Rear Extensions

The most popular choice for modern living. A rear extension can transform your ground floor, opening up space for a light-filled kitchen and dining area with views of the garden. By incorporating large sliding or bi-fold doors, skylights, or roof lanterns, we’ll design a space that feels bright, open, and welcoming — perfect for family life and entertaining.

Two Storey Rear Extensions

A smart way to expand both upstairs and downstairs. These extensions provide scope for an open-plan family space on the ground floor while adding valuable bedrooms or bathrooms above. For growing families, this option helps future-proof your home without the upheaval of moving.

Single Storey Side Extensions

Many homes have untapped potential to the side. A single storey side extension can provide a utility room, playroom, or office — or extend your kitchen into something truly special. It’s a cost-effective way to maximise every inch of your property.

Two Storey Side Extensions

Ideal for creating significant extra space while keeping your footprint compact. Imagine a new garage, snug, or home office at ground level with an additional bedroom or en-suite above. When carefully designed, these extensions blend seamlessly into your existing home.

Loft Conversions

Turn unused attic space into something special. A loft conversion is one of the most efficient ways to add extra rooms — whether for guests, teenagers, or a quiet workspace. Often achievable under permitted development, it’s a relatively straightforward way to unlock hidden potential in your home.

Dormer Loft Conversions

By adding a dormer, you gain extra headroom and usable floor area, opening up the loft to become a full master suite, children’s bedroom, or generous office. Dormers also bring in much more natural light, making the space feel truly part of the home.

Porches

A simple addition with a big impact. A well-designed porch improves kerb appeal, enhances security, and provides practical storage for coats and shoes. It’s a small change that makes daily life that bit easier.

Garage Conversions

If your garage is under-used, why not transform it into something more valuable? From a home office or playroom to a gym or even a self-contained annexe, garage conversions are a cost-effective way to create liveable space without a full extension.

Internal Alterations

An extension is the perfect moment to look inside your home and re-think how rooms flow together. Knocking through walls, opening up cramped layouts, or relocating staircases can make your property feel completely new. We can help redesign internal spaces to create open-plan living areas, better circulation, and a layout that works for modern family life.


Why Choose Celona Consulting?

  • Creative, practical design – We deliver solutions that look great and can be built efficiently.

  • Planning & building regulations – We manage applications and technical compliance for you.

  • Tailored service – Every design reflects your lifestyle, budget, and long-term needs.

  • Proven experience – 18+ years of residential architecture and extension design.

  • Value-driven – Designs that not only add space, but also increase property value.


Make Your House a Home

A well-designed extension isn’t just about adding space — it’s about creating a home that truly works for you. At Celona Consulting, we’ll help you explore your options, reimagine your layout, and design a space that reflects your way of living.

Goals of BIM

Building Information Modelling (BIM) is more than just 3D modelling—it’s about creating a smarter, more efficient way to deliver built assets. At Celona Consulting, we use BIM to drive clarity, reduce risk, and improve collaboration across the project lifecycle.

Key goals of BIM include:

  • Improved Coordination
      Align design and construction disciplines through integrated models that reduce clashes and rework.

  • Better Decision-Making
      Access to accurate, structured information enables more confident choices throughout design, procurement, and construction.

  • Enhanced Efficiency
      Automate documentation, streamline workflows, and reduce duplication across teams and phases.

  • Lifecycle Value
      Deliver structured asset data for facilities management, helping clients operate and maintain buildings more effectively.

  • Compliance & Transparency
      Meet industry standards like ISO 19650 and provide clear audit trails for stakeholders and regulators.

Environmental Benefits of Using BIM

BIM plays a critical role in supporting sustainable design and construction. By improving coordination and data visibility, it enables smarter decisions that reduce waste, energy use, and environmental impact.

Key environmental benefits include:

  • Reduced Material Waste
      Accurate quantity take-offs and clash detection help avoid overordering and rework—minimising waste on site.

  • Optimised Energy Performance
      Early-stage analysis allows teams to model daylight, insulation, and energy use—informing low-carbon design choices.

  • Smarter Construction Logistics
      Improved scheduling and sequencing reduce unnecessary deliveries, idling, and emissions.

  • Efficient Lifecycle Management
      Well-structured asset data supports energy-efficient operation and maintenance over a building’s lifespan.

  • Support for Sustainability Certifications
      BIM data can contribute to achieving standards such as BREEAM, LEED, and WELL by tracking materials, performance, and compliance.

  • Delivering the results BIM had always promised
  • Assisting construction companies to fulfil the information demands for a 21st century projects
  • Reinforcing profitability with reduced NCR’s & increased cost certainly
  • Maximum use of natural daylight with reduced number and size of lighting fixtures needed
  • Ease of renting and selling, and when sold, command a premium over conventional construction
  • Encouragement of further sustainable development within the community

Looking for a complete BIM Solution?