Our house extension projects focus on improving how homes look, feel, and function. We design extensions that add space without losing the character of the existing building. Every project is carefully planned to suit the needs of modern living while respecting its surroundings.
Explore a selection of thoughtfully designed house extension projects by Studio FRI, creating refined spaces that enhance how our clients live.
Located on Lammack Road, Blackburn, this project began with a simple ambition: to create a home that worked better for the way our clients live. With no predetermined design brief, Studio FRI developed a carefully considered response that enhances the existing property through improved space, natural light and a stronger connection between the home and garden.
Every intervention was purposeful, creating a refined extension that feels like a natural evolution of the original house.
At 7 Masonwood, Fulwood, Studio FRI reimagined an existing bungalow as a contemporary two-storey family home. The transformation gives the home a completely new architectural identity, carefully considered in proportion, form and its relationship with the surrounding streetscape.
Studio FRI transformed this dated property on Harewood Road, Preston, into a contemporary multi-generational family home. Side and rear extensions, a dormer conversion, an outhouse and complete internal reconfiguration created generous family living spaces alongside a fully independent annex for grandparents.
A traditional bungalow in Fulwood, Preston, reimagined as a refined four-bedroom family home. A considered extension, garage conversion and complete internal reconfiguration create generous, light-filled spaces with a fresh contemporary identity.
An existing single-storey extension on Chester Road, Grappenhall, has been reimagined as a refined, self-contained garden annexe for contemporary multi-generational living. Designed by Studio FRI, the scheme creates a private and considered living environment that balances independence, comfort and a natural connection to the main home.
A considered entrance and facade transformation on Bache Drive, Chester, introducing a new porch extension and subtle exterior refresh to give the home greater presence and a more contemporary identity.
House extensions and conversions provide an opportunity to transform an existing property, creating additional living space, improving functionality and adapting a home to meet changing requirements without the need to move.
A well-designed extension should do more than simply increase the size of a property. It should improve how the home works as a whole, creating better connections between rooms, introducing natural light and making more effective use of the available space.
Whether you are considering a single-storey rear extension, a double-storey side extension, a loft conversion or a garage conversion, each project presents different opportunities and constraints. The existing building, its structure, layout, architectural character and relationship with neighbouring properties all influence what can be achieved.
For homeowners, the objective is often to address limitations within their existing property. This might involve creating a larger kitchen and dining area, introducing additional bedrooms, providing a dedicated home office or reconfiguring an outdated layout to accommodate modern family life.
At Studio FRI, we believe successful house extensions and conversions should feel like a natural evolution of the existing home. By combining architectural design with a clear understanding of planning requirements and technical considerations, we develop proposals that balance appearance, practicality and long-term value.
Every property has its own characteristics, opportunities and limitations. Understanding these from the outset allows an extension or conversion to be designed around the existing building rather than treated as a separate addition.
The starting point is understanding the existing house, including its layout, structure, architectural character and relationship with the surrounding properties.
We consider factors such as available garden space, orientation, access, neighbouring windows, boundary distances and the position of existing structural walls. These considerations help establish the most appropriate form and location for an extension.
The most successful extensions address the way a household lives rather than simply providing additional floor space. We take time to understand how your existing home functions, which areas feel restricted and how your requirements may change over time.
This could include creating open-plan living spaces, improving circulation, introducing additional bedrooms, providing greater privacy or establishing stronger connections with the garden.
Once the opportunities and requirements have been established, we bring these together into a coherent architectural design. The relationship between existing and proposed spaces is carefully considered, alongside natural light, proportions, materials and the overall appearance of the property.
In some cases, a contemporary extension can provide a deliberate contrast to the original building. In others, a more traditional approach may be appropriate, allowing the new accommodation to integrate with the existing architecture. The objective is not simply to add space, but to create a home that feels more connected, functional and considered.
Understanding the planning requirements is an important early step when considering a house extension or conversion. Not every project requires a full planning application. Certain house extensions, loft conversions and garage conversions may be undertaken under permitted development rights, provided the proposal satisfies the relevant limitations and conditions.
However, permitted development rights are not universal. The type of property, previous extensions, planning conditions, conservation area restrictions and other site-specific considerations can influence what is permitted.
Where planning permission is required, the design will need to respond to the relevant local planning policies. Matters such as the scale and appearance of the extension, neighbouring amenity, overlooking, overshadowing and the character of the surrounding area may all influence the proposal.
Our planning-led approach considers these requirements from the earliest stages of design. Rather than developing a proposal and addressing planning constraints afterwards, we use our understanding of the planning process to establish what is realistically achievable.
Where appropriate, we can also advise on the use of Lawful Development Certificates, pre-application discussions and the preparation and submission of planning applications.
Planning approval cannot be guaranteed, but identifying potential constraints early can help avoid unnecessary redesign and establish a clearer route through the planning process.
A successful house extension or conversion requires careful consideration of the existing property, your requirements and the practicalities of construction. We guide homeowners through each stage of the process, from securing planning permission to developing the technical details needed to bring the project to life.
We start by discussing what you would like to achieve and how your existing home could better meet your needs. This allows us to explore potential extension or conversion options, understand your priorities and identify the most suitable approach for your project.
We assess your existing property to establish what can realistically be achieved, considering available space, structural limitations and planning requirements. This helps identify the most suitable extension or conversion options and address potential challenges before progressing with the design.
We develop the initial architectural ideas, considering the building’s position, scale, form, layout and relationship with the surrounding landscape. The design evolves through discussion and refinement to establish a clear direction for the project.
Once the design has been developed, we can prepare the information required for a planning application and guide the project through the planning process.
Following planning, the design can be developed in greater technical detail, including the information required for Building Regulations and construction.
Where our appointment extends through to construction, we can continue to support the project as the design is delivered, helping maintain the quality and intent established during the earlier stages.
A well-designed house extension or conversion can transform an existing property, creating additional living space, improving functionality and enhancing its architectural character.
Single-storey house extensions offer an opportunity to create spacious, open-plan kitchens, dining areas and contemporary family living spaces.
Whether extending to the rear or side of a property, our designs focus on maximising natural light, improving connections to the garden and integrating new accommodation with the existing home.
Double-storey house extensions provide additional accommodation across two floors, making them ideal for homeowners looking to create larger bedrooms, additional bathrooms and more generous living spaces.
Our designs carefully consider the property’s proportions, roof structure, materials and architectural detailing to ensure the extension complements the existing building.
Loft conversions transform unused roof space into valuable accommodation, including principal bedroom suites, guest bedrooms, home offices and additional living areas.
From dormer loft conversions to rooflight installations, we assess the existing roof structure, available headroom and planning requirements to develop a design that maximises usable space and natural light.
Garage conversions offer a practical way to create additional living space without extending the property’s existing footprint.
Whether converting a garage into a home office, bedroom, private gym or family room, we consider insulation, natural light, ventilation and integration with the existing layout to create a comfortable, functional space.
At Studio FRI, we combine architectural design expertise with a thorough understanding of planning and Building Regulations to deliver carefully considered house extensions and conversions.
Every project begins with an understanding of the existing property and your ambitions for the space. Our approach focuses on creating designs that improve functionality, maximise available space and complement the architectural character of your home.
With experience in single-storey and double-storey house extensions, loft conversions, garage conversions and complete residential transformations, we work with homeowners across Preston, Lancashire and the wider North West.
From initial feasibility and measured surveys through to planning permission, Building Regulations and construction support, we provide a coordinated architectural service tailored to your project.
Our focus is on delivering thoughtful, practical designs that enhance your home and create lasting value.
Not every house extension requires planning permission. Some projects may fall under permitted development rights, depending on the size, height, position and design of the extension, as well as the property’s location and planning history. Properties in conservation areas or other designated locations may face additional restrictions, and listed buildings have separate consent requirements. Studio FRI can assess your proposals at an early stage and advise on the most appropriate planning route for your project.
Studio FRI works on a range of residential projects, including single-storey and double-storey extensions, rear and front extensions, porch extensions, dormers, bungalow extensions and wider home transformations. Each project is approached individually, with careful consideration given to the existing property’s character, available space, natural light and the needs of the household.
The cost of a house extension depends on its size, complexity, structural requirements, specification and the condition of the existing property. Additional considerations include glazing, materials, internal alterations, professional fees and planning or building control requirements. Establishing a clear brief and assessing the property’s potential early can help you understand the likely scope of the project and make informed decisions before committing to construction.
The timescale varies according to the scale of the extension, the complexity of the design, whether planning permission is required and how quickly technical approvals and construction arrangements can be completed. Design development and approvals take place before building work begins, while construction times depend on the nature of the project. Studio FRI helps establish a clear process from the outset, identifying key decisions and potential planning or technical constraints as early as possible.
Planning permission considers whether a proposed development is acceptable in its surroundings, including its scale, appearance and impact on neighbouring properties. Building regulations approval focuses on technical and safety requirements, such as structural stability, fire safety, insulation, ventilation and energy performance. These are separate processes, and an extension may require building regulations approval even when planning permission is not needed. Studio FRI provides planning and technical design services to help clients understand and navigate the relevant requirements.
In many cases, extending or reconfiguring a bungalow can create the additional space a household needs without moving. Depending on the property, options may include extending outwards, introducing dormer accommodation or exploring a more comprehensive transformation into a larger family home. The best approach depends on the building’s structure, plot constraints, planning considerations and how you want to use the space. Studio FRI assesses these factors to develop a design that balances additional accommodation, functionality and the character of the surrounding area.
A successful extension should respond to the original building while improving how the home functions. Proportion, rooflines, materials, window placement and the relationship between old and new spaces all influence the result. Depending on your brief, a complementary design or a carefully considered contemporary addition may be appropriate. Studio FRI takes a context-led approach, creating extensions that feel coherent with the existing home while meeting the practical needs of modern living.
An architectural designer can help you explore what is achievable, develop an effective layout, resolve design challenges and prepare the drawings and supporting information needed for the relevant approvals. Professional input at an early stage can also help identify planning constraints and technical considerations before they become costly problems. Studio FRI combines architectural design with planning expertise, helping homeowners make informed decisions from initial feasibility through to detailed design and, where required, construction-stage support.
Considering a house extension in Lancashire or the wider North West?
Studio FRI can help you understand the potential of your site, develop an architectural approach and navigate the planning and design process through to the next stage of your project.
Studio FRI is a contemporary architectural and planning practice based in Preston, working across Lancashire and the wider North West. We specialise in bespoke residential architecture and strategic planning proposals, delivering calm, considered design solutions shaped by insight, proportion and purpose.
Cotton Court Business Centre, Preston, Lancashire, PR1 3BY
©2026. Studio FRI All Rights Reserved.