CaSA Architects Secures Paragraph 84 Approval for East Winterslow Home

Key facts

• Wiltshire Council granted planning permission under delegated powers for a detached house and annexe near East Winterslow.
• The project was approved under the exceptional design provisions of NPPF Paragraph 84(e).
• CaSA Architects specified external walls combining flint cobb with rammed chalk, referencing historic West Winterslow building methods.
• Planning consultancy Hughes Planning achieved its twenty-eighth Paragraph 84 rural house consent with this application.
• The proposal underwent three separate independent sessions with The Design Review Panel prior to determination.

Wiltshire Council has granted planning permission under delegated powers for an isolated country house and companion annexe designed by CaSA Architects near East Winterslow. The decision, issued under application reference PL/2025/02747, approves a bespoke residential compound in open countryside following rigorous evaluation under the national exceptional design exception.

What Wiltshire Council has approved in East Winterslow

The approved application allows the construction of a detached private house alongside a complementary annexe building on land adjacent to Falcon Cottage along Pincroft Lane. Situated near East Winterslow within the Wiltshire countryside, the project delivers a one-off residential scheme supported by comprehensive landscape interventions developed by SEED Landscape Design.

Because the designated site lies outside any defined settlement boundaries within the local development plan, standard residential development would ordinarily be barred under countryside restraint policies. Wiltshire Council planning officers assessed the scheme against the strict criteria of Paragraph 84(e) of the National Planning Policy Framework (NPPF), concluding under delegated authority that the architectural calibre and contextual response justified an exception to normal restrictive zoning.

Planning background and Paragraph 84 policy tests

Under national planning policy, establishing a new dwelling in an isolated rural setting requires an applicant to satisfy demanding quality tests. Paragraph 84(e) dictates that an isolated countryside dwelling must be of exceptional quality, demonstrate the highest architectural standards, significantly enhance its immediate environment, and display deep sensitivity to regional character.

The East Winterslow application was brought forward by planning consultancy Hughes Planning. The firm has specialised extensively in rural exception housing across the South West, with this consent representing their twenty-eighth approval under the isolated rural home exceptions, which encompass legacy policies formerly designated as Paragraphs 55 and 79.

In addition to Paragraph 84(e), local planning officers evaluated the scheme against Paragraph 139 of the NPPF, which directs councils to attach substantial weight to outstanding design quality and to reject applications of poor architectural merit. Navigating such stringent thresholds frequently requires multiple stages of design evolution, a dynamic common across complex schemes involving estates and rural landholdings.

Architectural concept: rammed chalk and flint cobb

CaSA Architects devised an architectural form rooted in an imagined historical evolution of the site. Rather than adopting an overt contemporary glass-and-steel aesthetic, the design team shaped a structure featuring a footprint derived from medieval building typologies, organised around layered rural building techniques unique to the Salisbury chalk plain.

The material palette responds to traditional construction practices observed across the neighbouring parish of West Winterslow, where chalk cobb cottages have stood for centuries. The ground levels of the house are formed from a flint cobb foundation that gradually feathers into upper wall sections of rammed chalk, creating a textural gradient that grounds the house within local geology.

Working in close coordination with CaSA Architects, SEED Landscape Design shaped the surrounding terrain to assimilate both the main house and its secondary annexe into the countryside. The building massing and exterior terraces work with the site's natural contours to minimise visual encroachment from public rights of way while establishing outdoor habitats that reinforce local biodiversity, echoing the balance achieved when retrofitting agricultural structures such as Studio Weave's farm barn conversion in Cowes.

Design review findings and professional commentary

A critical factor in securing approval was the team's early and sustained engagement with independent peer critique, as first reported by Design Review Panel. The scheme was subjected to three distinct review sessions, which encompassed site visits and structured follow-up examinations that critiqued building orientation, massing, materiality, and the relationship between the house and the annexe.

Wiltshire Council's delegated officer report noted that the iterative review process provided demonstrable evidence of quality, directly quoting the panel's findings in the planning balance. The planning officer confirmed that the iterative revisions produced a scheme that genuinely elevated local rural design standards while significantly enhancing the immediate landscape context.

Commenting on the successful outcome, Hughes Planning highlighted the panel's decisive contribution: “Hughes Planning are delighted to have secured permission for its 28th Para 84e house in the countryside of Wiltshire.” The planning consultants observed that independent review gave council officers confidence to determine the application without referral to committee.

Conditions and implementation

Planning permission was granted subject to standard statutory planning conditions that govern rural bespoke builds. These include strict requirements to submit sample panels of the rammed chalk and flint cobb construction prior to structural works reaching above foundation level.

Further conditions require the execution and long-term management of the comprehensive planting and earth-shaping schemes prepared by SEED Landscape Design. The consent establishes an enforceable framework ensuring that the construction phase adheres faithfully to the exacting technical specifications presented during the design panel hearings, preserving the high architectural benchmark that underpinned Wiltshire Council's decision to permit a new home on the open countryside plot.

Why this matters

Securing planning approval under Paragraph 84(e) remains one of the steepest tests in English planning law, demanding proof of exceptional architectural quality and contextual enhancement. This decision illustrates how independent design review panels can provide local planning authorities with the technical assurance needed to grant delegated approvals for countryside homes without committee delays.

Questions answered

what is paragraph 84e in planning

Paragraph 84(e) of the NPPF allows new isolated homes in the countryside only if they achieve exceptional architectural quality and significantly enhance their immediate setting.

who designed the east winterslow paragraph 84 house

The isolated country house and annexe were designed by CaSA Architects, working with landscape architecture firm SEED Landscape Design.

what materials are used in the east winterslow house

The exterior features a flint cobb foundation that transitions into upper wall courses of rammed chalk, inspired by historic local cobb cottages.

how many design reviews did the east winterslow scheme undergo

The project was evaluated through three independent design review sessions with The Design Review Panel before formal determination.

can paragraph 84 homes be approved under delegated powers

Yes. Wiltshire Council planning officers approved this application under delegated powers after concluding the scheme satisfied all national policy criteria.

who was the planning consultant for the project

Hughes Planning acted as the planning consultant, securing its twenty-eighth Paragraph 84 countryside dwelling approval.

Source: originally reported by Design Review Panel.