How Long Does It Take To Design & Build A Bespoke Orangery?

One of the first questions homeowners ask when considering a bespoke orangery is how long the entire process will take. Unlike off-the-shelf garden rooms, bespoke orangeries are carefully designed, manufactured and built to suit your home, lifestyle and architecture. 

Below, we break down the typical timeline from first ideas to completion, and explain what factors can influence how long your orangery project may take.

Initial consultation and site survey (one to two weeks)

The process usually begins with an initial consultation and site visit. During this stage, measurements are taken, your property is assessed, and discussions focus on how you want to use the space

This includes practical considerations such as orientation, natural light, access to the garden and how the orangery will connect to your existing home.

At this point, you may also discuss materials, roof styles, glazing options and whether the orangery should complement a period or contemporary property. 

While this stage can be completed quickly, some homeowners choose to take extra time to explore ideas and refine their brief before moving forward.

Orangery design development and approvals (three to six weeks)

Once the survey is complete, the design phase begins. This is where a bespoke orangery really differs from standard extensions. Detailed drawings are produced, often including 3D visuals, allowing you to see how the finished structure will look and feel.

This stage may involve several design revisions as details are refined, such as column proportions, roof lantern design, glazing layout and internal finishes. The more complex or traditional the design, the longer this phase may take. 

For period homes or heritage-style properties, extra care is often needed to ensure architectural accuracy. Design approval is only signed off once you are completely satisfied, making this one of the most important phases of the project.

Orangery planning permission and building regulations (eight to 12 weeks, if required)

Not all orangeries require planning permission, but if yours does, this can be one of the longest stages in the process. Local authority decisions typically take around eight weeks, although this can extend to twelve weeks in some cases.

Listed buildings or properties in conservation areas may require additional approvals, which can add time. Even where planning permission is not needed, building regulations approval is usually required, covering foundations, insulation, drainage and structural safety.

An experienced orangery supplier will manage this process on your behalf, helping to avoid delays and ensure compliance.

Manufacture of the bespoke orangery structure (six to ten weeks)

Once designs and approvals are in place, the orangery moves into production. Unlike mass-produced systems, bespoke orangeries are typically handcrafted, particularly when hardwood frames, traditional detailing or custom roof lanterns are involved.

Timber needs time to be carefully prepared, treated and finished, and glazing units are made to exact specifications. The quality of materials and craftsmanship at this stage directly affects the longevity and performance of the orangery, so this is not a step to rush.

Lead times can vary depending on material choice, level of detailing and seasonal demand.

Groundworks and base construction (two to three weeks)

Groundworks are often carried out while the structure is being manufactured. This includes excavation, foundations, drainage and the construction of the base and dwarf walls.

The duration of this stage depends on site conditions and access, as well as weather. Winter projects may take slightly longer if ground conditions are challenging, but experienced contractors will plan accordingly to keep the project on track.

Orangery installation and build (three to five weeks)

Once the structure is ready, installation begins. This includes erecting the orangery frame, fitting the roof system, installing glazing and completing external finishes.

Internal works such as flooring, lighting, heating and plastering are also completed during this phase. A well-planned installation minimises disruption and ensures the orangery integrates seamlessly with your existing home.

For more complex designs or premium finishes, installation may take a little longer, but quality control remains the priority.

Final sign-off and finishing touches (one to two weeks)

The final stage includes inspections, any snagging work and finishing details. This ensures everything meets agreed specifications and building regulations before the orangery is formally signed off.

Once complete, your bespoke orangery is ready to enjoy as a light-filled, year-round living space.

How long does a bespoke orangery take in total?

From initial consultation to completion, a bespoke orangery typically takes between six and nine months. Simpler projects without planning requirements may be completed more quickly, while larger or more complex designs can take longer.

While this may seem like a significant timeframe, the result is a beautifully crafted, permanent extension that enhances both your lifestyle and the value of your home.