Our One Horton Heath Story

One Horton Heath (OHH) has been close to the heart of Boyle & Summers from the very beginning.
Twelve years ago, as we set up the practice, the Outline scheme was already live on our desks — and we were proud to be among the first designers shaping what would become the UK’s largest council-led housing development to date. Today, we’re excited to see that journey continue with the recent submission of The Upper Acre for Reserved Matters approval.
Developed collaboratively between the OHH team, our architects and urban designers, and the wider consultant team, the plan sets out a clear framework for delivering high-quality, sustainable homes, supported by green spaces and a strong sense of place to meet local needs.
The Upper Acre will deliver over 420 homes on a gently sloping, south-facing site, forming a key part of the principal street network. Green links and open spaces sit at its heart, creating a connected, walkable neighbourhood. Overlooking The Lower Acre — now under construction — future residents will be just a short walk or cycle from the new local centre and primary school, with easy bus access to the rail station and employment opportunities at Hedge End.
Our vision for The Upper Acre is a vibrant network of characterful streets, framed by architecture that draws on the local vernacular while embracing contemporary, robust detailing. A carefully curated palette of traditional materials creates cohesion, while shifts in rhythm, form, fenestration and boundary treatments give each character area its own identity. Pocket parks, tree-lined streets, and the generous Upper Acre Green Park will enrich daily life, shaping a place that feels welcoming, distinctive, and built to last.
The scheme draws it's strength from the surrounding green landscape, local existing buildings, and promotes walking and cycling as the first choice of movement throughout the site and into surrounding areas. There is clear distinction between public and private space, key nodal points that encourage way-finding, and strong links into the green linear park that runs north-south through the site. The submitted design seeks to maximise the positive wellbeing of future residents with calm yet distinctive character areas, ready access to green spaces, a social public realm, pedestrian/cyclist priorities, plentiful play opportunities, and intricate architectural and landscape detailing that provides tactility and intrigue at the human scale.
We are grateful to Eastleigh Borough Council for the opportunity to work together on this project, and look forward to seeing it progress to the next stage.
Developed collaboratively between the OHH team, our architects and urban designers, and the wider consultant team, the plan sets out a clear framework for delivering high-quality, sustainable homes, supported by green spaces and a strong sense of place to meet local needs.
The Upper Acre will deliver over 420 homes on a gently sloping, south-facing site, forming a key part of the principal street network. Green links and open spaces sit at its heart, creating a connected, walkable neighbourhood. Overlooking The Lower Acre — now under construction — future residents will be just a short walk or cycle from the new local centre and primary school, with easy bus access to the rail station and employment opportunities at Hedge End.
Our vision for The Upper Acre is a vibrant network of characterful streets, framed by architecture that draws on the local vernacular while embracing contemporary, robust detailing. A carefully curated palette of traditional materials creates cohesion, while shifts in rhythm, form, fenestration and boundary treatments give each character area its own identity. Pocket parks, tree-lined streets, and the generous Upper Acre Green Park will enrich daily life, shaping a place that feels welcoming, distinctive, and built to last.
The scheme draws it's strength from the surrounding green landscape, local existing buildings, and promotes walking and cycling as the first choice of movement throughout the site and into surrounding areas. There is clear distinction between public and private space, key nodal points that encourage way-finding, and strong links into the green linear park that runs north-south through the site. The submitted design seeks to maximise the positive wellbeing of future residents with calm yet distinctive character areas, ready access to green spaces, a social public realm, pedestrian/cyclist priorities, plentiful play opportunities, and intricate architectural and landscape detailing that provides tactility and intrigue at the human scale.
We are grateful to Eastleigh Borough Council for the opportunity to work together on this project, and look forward to seeing it progress to the next stage.



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