35 New Broad Street

A landmark in sustainability

Sustainability sits at the heart of our proposals. We are committed to creating a highly sustainable, low-carbon building for the future, in line with the City of London Corporation’s climate action goals.

Our retrofit-first strategy

Our core strategy is a retrofit-first approach, prioritising the retention and adaptation of the existing structure and foundations over demolition. This significantly reduces embodied carbon, the carbon cost of construction materials and building work, and is one of the most significant environmental commitments we can make.

Circular economy and low-carbon materials

We are undertaking a full assessment of the existing building to identify materials for reuse and recycling. New materials will be selected for low carbon content and high recycled content wherever possible.

Our proposals target zero fossil fuel usage on-site, implementing market-leading energy efficiency measures and renewable energy sources. 

CGI view of proposed scheme, illustrating proposed urban greening and building materiality

Industry-leading performance targets

BREEAM Outstanding

The UK's highest sustainability rating for buildings.

A rigorous operational energy performance benchmark.

The highest energy efficiency band — targeting net zero in operation.

Recognising healthy, occupier-focused design and wellbeing.

A new gateway for Liverpool Street

CGI at ground floor level — junction of Old Broad Street and New Broad Street

We are still developing the ground floor cultural programme, and your views will directly inform what we deliver. Our survey asks what cultural uses, events and activities would draw you to this part of the City — in the evenings, at weekends and beyond the working day. 

The current building offers little to people passing through and has no cultural offer. Our proposals aim to transform this entirely — creating a vibrant new public destination that actively supports the City of London Corporation’s ‘Destination City’ ambitions, drawing people to the area beyond typical working hours. 

We are exploring opportunities to:

Sustaining the City's global competitiveness

The scheme will deliver:

Grade A office space

Efficient, wellbeing-led workspace designed for modern businesses of all sizes, with flexible floorplates and excellent natural light. 

Wellbeing and amenity

Generous landscaped terraces and high-quality end-of-trip facilities including cycle storage, promoting occupier health and productivity. 

Prime connectivity

Steps from Liverpool Street Station — the UK’s busiest transport hub — served by five Underground, Elizabeth line and National Rail routes. 

Economic stimulus

Bringing more workers and visitors to the Square Mile, supporting local retail, hospitality and service businesses. 

Office occupiers are increasingly seeking better-quality, wellbeing-focused and flexible commercial spaces with best-in-class amenity. The City Plan 2040 targets a minimum of 1.2 million sq m of new office space to meet this demand and secure London’s global position as a leading financial and professional services centre. 

View of proposed public realm improvements along New Broad Street
CGI view of proposed roof terrace

A high-quality and sensitive design

CGI of proposed building, including material palette

We want to deliver a landmark extension to 35 New Broad Street, befitting of its prominent location in the City of London — making full use of the site through the addition of new floors above the retained existing building, whilst respecting key strategic views and responding sensitively to the New Broad Street Conservation Area.

Responding to the historic streetscape

The 1980s façade will be removed, restoring the original building line at the corner of Old and New Broad Street. The proposed extension takes inspiration from the historic buildings that surround the site, matching their scale and proportions to sit comfortably in the streetscape. Details from the existing building, including its stonework, decorative cornices and carved corbels, are preserved and woven into the new façade, creating a building that feels rooted in its historic setting while looking firmly to the future.

The shape of the new building has been carefully considered at every level. It steps back from the street edges so it feels human in scale at ground level, while the upper floors angle gently inward, softening its presence when viewed from the surrounding streets. The height is designed to create a smooth transition between the lower historic streets nearby and the taller buildings of the City cluster. At the top, a crown of green planting gives the building a distinctive presence on the skyline.

The design has been rigorously tested from key public vantage points, including the proposed Liverpool Street Station roof garden. Before-and- after view studies demonstrate that the proposed 12-floor extension above the existing building sits comfortably within the surrounding cityscape when seen from multiple positions, including at seated level.

The proposed material palette of reconstituted stone, textured metal panels in a terracotta finish and integrated planting draws on the character of the surrounding area while providing a contemporary finish.

Delivering benefits beyond the building

Aviva Investors has a strong track record of maximising social value through its developments and is committed to delivering meaningful community and cultural benefits through the redevelopment of 35 New Broad Street.

Art and culture
Seed130 at 130 Fenchurch Street and Hypha Studios at 1 Liverpool Street are examples of Aviva's ongoing cultural programming in the City.
Employment and skills
The SWAP programme has supported entry-level construction training at Pegasus Mayfair and 1 Liverpool Street, with 88% of participants obtaining a CSCS card.
Supporting local businesses
At The Harrison, Hoxton, Aviva directed over £10m of supply-chain spend to local SMEs and social enterprises.
Community partnerships
Aviva has worked with New City College, London Metropolitan University and the Department for Work and Pensions to deliver skills and education programmes.

View the full proposals

The consultation information boards boards contain the complete detail of our proposals, including the site’s history, our vision, the design approach, sustainability strategy, public realm proposals and social value commitments.

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