Pergola structure granted Planning Permission in Feltham | Hounslow

Pergola Planning Permission for SAP at Clockhouse Place, Feltham

SAP approached 4D Planning for assistance with securing planning permission for a new pergola at Clockhouse Place in Feltham. The proposal involved the erection of a single storey pergola on the existing ground floor rear terrace of the office building.

Although a pergola may appear to be a modest addition, structures at commercial premises can raise planning, design and heritage considerations. In this case, the property is located within the Bedfont Green Conservation Area, which meant the application needed to demonstrate that the proposed works would preserve the character and appearance of the area.

4D Planning prepared the architectural drawings, Design and Access Statement, Planning Statement and Heritage Statement. We also coordinated the submission and managed the application through the planning process with the London Borough of Hounslow.

Planning permission was granted, allowing SAP to improve the quality and usability of its outdoor staff facilities.

About SAP and the Clockhouse Place Office

SAP is a global technology company that develops enterprise software used by organisations to manage business operations, finance, human resources, customer relationships, procurement and supply chains.

The company’s work relies on technical expertise, collaboration, problem solving and sustained concentration. Employees may spend significant periods working at computers, attending meetings or managing complex projects. The quality of the working environment can therefore have a direct influence on how staff experience the working day.

Clockhouse Place is a substantial office building on the north side of Bedfont Road. The planning statement describes the property as a large multi storey office building positioned within a sizeable plot containing extensive parking areas and mature boundary planting. The wider surroundings are mixed in character, with considerable variation in the scale, form and appearance of buildings.

The scale of the site provided an opportunity to improve an existing external terrace without materially changing the appearance or operation of the wider office complex.

Why SAP Approached 4D Planning

SAP wanted to make better use of an existing rear terrace by creating a sheltered outdoor amenity area for staff and other users of the building.

The terrace was already available, but its usefulness was limited by the weather. Strong sunlight, rain and changing conditions can discourage employees from using external areas, even where seating and landscaped surroundings are provided.

The proposed pergola was intended to create a more dependable outdoor environment. It would allow the terrace to be used more regularly for breaks, informal meetings and periods away from the internal office setting.

SAP approached 4D Planning because the proposal needed to be presented as more than a decorative garden structure. It formed part of a large commercial property within a conservation area and required a properly coordinated planning submission.

Our role was to explain the functional purpose of the pergola, demonstrate that its design was appropriate and establish that it would not harm the building, nearby properties or the character of the conservation area.

A 50m2 Sheltered Staff Amenity Area

The approved pergola was designed to sit within an existing recess at the rear of the office building. It covered an area of approximately 50m2 and was designed as a mostly timber structure with open sides and a solid roof.

These design details were important to the planning assessment.

Positioning the structure within an existing recess helped it relate naturally to the building. Rather than projecting prominently into the surrounding grounds, the pergola occupied a contained area beside the rear elevation.

The open sided design allowed the structure to retain the character and experience of an outdoor space. Staff would still benefit from fresh air and views across the grounds, while the solid roof would provide shelter from sunlight and rainfall.

At approximately 50m2, the pergola was large enough to create a meaningful staff facility without appearing excessive in relation to the scale of the office building and the wider site.

The structure represented an efficient use of space that was already available. It did not require additional land, extensive building works or a conventional office extension.

Making Better Use of Outdoor Office Space

Many office developments include terraces, courtyards or landscaped grounds, but these spaces are not always designed for regular use.

An uncovered terrace may be attractive during a small number of warm and dry days, yet remain empty for much of the year. This can result in potentially valuable workplace space being underused.

The purpose of SAP’s pergola was to provide an external amenity area with shelter from the elements. This objective was expressly identified within the planning submission.

The pergola would allow employees to use the terrace during a wider range of weather conditions. Staff could sit outside during light rain, find shade during warmer periods or use the space without needing to rely on completely dry and settled weather.

This transformed the terrace from an occasional outdoor seating area into a more functional part of the workplace.

How a Pergola Can Improve Staff Focus

Office employees are often required to maintain concentration across long periods. The working day may involve repeated online meetings, detailed reports, problem solving, emails and tasks that require sustained attention.

Taking a break away from the desk can help staff return to work with a clearer sense of focus. However, the character of the break space can make a difference.

Moving from a desk to an internal kitchen or meeting room provides a physical change, but it does not always provide a meaningful change of environment. Outdoor space offers natural light, fresh air and a greater sense of separation from immediate work demands.

A sheltered terrace can make it easier for staff to take short, restorative breaks without leaving the office premises. An employee might use the space for a coffee, a brief conversation with a colleague or several minutes away from a computer screen.

These small pauses can help divide the working day into more manageable periods. Staff may return to their tasks feeling refreshed and better able to concentrate.

The pergola does not need to become a replacement for the office. Its value lies in providing employees with greater choice.

Supporting Informal Meetings and Collaboration

The pergola can also support informal meetings and staff interaction.

Large office buildings commonly contain formal meeting rooms, desks, reception areas and internal breakout spaces. Each environment serves a particular function, but not every conversation requires a booked meeting room.

An outdoor terrace can provide a relaxed setting for short discussions, introductory meetings and conversations between colleagues. It may be particularly useful where staff want to review an idea, discuss a project or speak away from the distractions of the main office floor.

For a technology company such as SAP, collaboration and the exchange of ideas form an important part of day to day work. Providing different types of meeting spaces can help employees choose an environment suited to the task.

The proposed pergola gave the existing terrace a clearer identity and purpose. Rather than being an exposed space that employees might pass through, it could become a recognised place for breaks and informal collaboration.

Using Outdoor Space in Different Weather Conditions

A successful external office space needs to respond to the British climate.

During warmer weather, direct sunlight can make an uncovered terrace uncomfortable. Employees may avoid the space because of heat, glare or the lack of shade.

During cooler or wetter periods, even light rain can prevent an exposed seating area from being used.

The solid roof of SAP’s pergola was designed to provide shelter, while the open sides retained ventilation and an outdoor character. This combination allowed the structure to offer protection without creating another enclosed room.

The pergola could therefore extend the period during which the terrace remained useful. It would not guarantee comfortable outdoor conditions every day, but it would reduce the dependence on completely dry and mild weather.

Planning Advice Before the Application

An important feature of this project was the decision to seek formal advice from Hounslow Council before submitting the planning application.

A pre planning application was submitted in 2025 under reference PRE/2025/1292. The Council’s response indicated that the proposal could be viewed favourably if a planning application was submitted.

This provided a useful level of direction before the full submission.

Pre application advice can be valuable for commercial projects where the site is affected by heritage designations or where the applicant wants greater certainty before committing to the planning process.

Although favourable pre application advice does not guarantee that permission will be granted, it can identify the main planning considerations and allow the application team to address them from the outset.

In this case, the advice helped confirm that the principle of the pergola was acceptable, subject to an appropriate planning application.

The Bedfont Green Conservation Area

The Clockhouse Place site lies within the Bedfont Green Conservation Area. However, the office building is not statutorily listed or locally listed.

The conservation area designation meant that the planning application needed to consider whether the proposed pergola would affect the special architectural or historic interest of the area.

The Bedfont Green Conservation Area Appraisal identifies several elements that contribute to the area’s significance, including its historic origins, architectural interest, historic layout and large open spaces.

Importantly, the appraisal identifies the SAP property as making a neutral contribution to the conservation area. The planning statement also noted that the existing office building was of neutral architectural and visual merit.

This did not remove the need for a heritage assessment, but it provided relevant context when considering the potential effect of the pergola.

Why the Pergola Did Not Harm the Conservation Area

The location of the pergola was a significant part of the planning case.

The structure was confined to the rear of the building and positioned within the existing commercial site. It was not visible from the public realm and did not require alterations to the front elevation.

This greatly limited its potential effect on the wider conservation area.

The front elevation and public views of Clockhouse Place would remain unchanged. The pergola would be experienced mainly by employees and visitors using the rear terrace, rather than by people moving through Bedfont Road or the surrounding streets.

The planning statement also noted that pergolas or works of this nature were not identified as negative features or threats within the Conservation Area Appraisal.

On this basis, the proposal was considered capable of preserving the special character and appearance of the Bedfont Green Conservation Area.

Design and Neighbouring Amenity

The proposal was also assessed against Policy SC7 of the Hounslow Local Plan, which seeks a high standard of design and protection of residential amenity.

The planning case explained that the surrounding area does not have a single unified architectural character. Instead, it contains a range of building forms, scales and treatments.

The pergola would not appear out of place within this varied setting.

There were also no identified adverse effects on neighbouring properties. The orientation and position of the structure meant that it would not cause harmful overshadowing, while its location within the existing office site limited any potential visual impact.

These factors helped demonstrate that the pergola was appropriately designed for its location.

Flood Risk and Site Constraints

The site is situated within Flood Zone 1, which means it has a low probability of flooding.

This was relevant because the proposal involved a relatively small structure on an existing terrace rather than a new building or extensive increase in built footprint.

The site was not affected by other significant adverse designations identified within the planning statement, apart from its location within the conservation area.

The principal planning considerations were therefore the design of the pergola, its relationship with the office building, staff amenity and heritage impact.

The Role of 4D Planning

4D Planning brought together the architectural, planning and heritage elements of the application.

Our drawings showed the position, dimensions, design and relationship of the pergola to the existing terrace and office building.

The supporting statement explained the need for the structure, assessed the relevant Hounslow Local Plan policies and considered the effect on the Bedfont Green Conservation Area.

This coordinated approach gave the Council a clear understanding of what was proposed and why the development was appropriate.

The application demonstrated that the pergola would make efficient use of the site while providing additional and enhanced employee amenities. It was also found to comply with the National Planning Policy Framework and the Hounslow Local Plan.

Do Commercial Pergolas Need Planning Permission?

A pergola at an office or commercial property may require planning permission.

The planning position will depend on the size, height, location, design and permanence of the structure. Consideration will also need to be given to whether the site is listed, situated within a conservation area or affected by previous planning conditions.

Commercial properties do not always benefit from the permitted development rights that may apply to residential gardens.

Planning advice should therefore be obtained before purchasing or installing a pergola. This is particularly important where the structure has a solid roof, covers a substantial area or is attached to an existing building.

Planning a Pergola for Your Workplace?

A carefully designed pergola can make a substantial difference to how employees use an existing terrace or courtyard.

It can provide shade, shelter and a more comfortable setting for breaks, informal meetings and staff interaction. It can also help a business make better use of land that would otherwise remain underused during much of the year.

4D Planning assists businesses, office operators, schools, hotels, restaurants and commercial property owners with planning applications for pergolas, covered terraces and external staff facilities.

Contact 4D Planning to discuss your proposed pergola and obtain professional advice on the drawings, planning justification and application process.