Selected WEDRAWPLANS planning projects

Loft conversions · 2026

Hoddesdon Rear Extension Planning Approval, Loft & Building Regulations Drawings

Partially retrospective rear-extension planning permission granted

A coordinated Hoddesdon home improvement case demonstrating WEDRAWPLANS' planning, architectural design and technical drawing work. Broxbourne granted partially retrospective householder planning permission on 16 October 2026 for the single-storey rear extension. Alongside the planning submission, our September 2026 technical drawings illustrate the wider kitchen, dining and ground-floor arrangement and the gable-loft conversion design, including the interfaces with structural engineering.

WEDRAWPLANS architectural drawings

Follow the Broxbourne-approved rear extension from its evidence-led planning submission into a separate ground-floor and gable-loft technical drawing package, with coordinated structural design interfaces.

Cranbourne Drive, Hoddesdon

Broxbourne, Hertfordshire · Planning approval · 2026

One home, two coordinated drawing stages

At Cranbourne Drive in Hoddesdon, WEDRAWPLANS worked across the architectural planning and Building Regulations stages of a substantial home improvement programme: a garden-facing single-storey rear extension and a wider gable-and-loft redesign. The project illustrates how a well-evidenced planning case can sit alongside a separate, more detailed technical drawing package.

16 Oct 2026

Rear extension planning permission

3.4 metres

Depth assessed for the permitted rear extension

9 selected sheets

Five planning-stage and four technical drawings

Architecture and technical design

Start with the BC-10 existing-and-proposed house visual, then explore the planning design and detailed Building Regulations drawings. Every original sheet is presented in full, with closer inspection available on mobile.

Building Regulations · BC-10 · 1 of 4

Coordinated design, before and proposed

Front, rear and elevated views illustrate how the rear extension and loft scheme work together.

Full WEDRAWPLANS BC-10 architectural three-dimensional views showing existing and proposed rear and roof forms
Building Regulations · BC-10. The full original sheet fits within the viewing area.

Stage 01 · Planning success

Making the case for a rear extension in an already evolving streetscape

The original conservatory was replaced by a modest, low-profile single-storey addition. The submitted Design and Access Statement explained why the 3.4-metre rear projection, three rooflights and rear-facing glazed openings were appropriate. Rather than relying on generic claims, it examined the established neighbouring building lines, daylight, outlook, privacy, the retained rear garden and Broxbourne's Residential Design and Amenity guidance.

The planning submission distinguished documented neighbouring decisions from physical examples without a verified planning record. Broxbourne Council granted partially retrospective permission on 16 October 2026, subject to the approved drawing schedule and matching external materials.

Planning reference 07/26/0627/HF. This decision applies to the partially retrospective single-storey rear extension. The earlier selected planning illustrations also show broader loft and roof design ideas; they are not represented here as the formal approved 2026 drawing set or separate loft planning consent.

Stage 02 · Technical development

From planning concept to coordinated ground-floor and gable-loft technical drawings

The Building Regulations drawing pack extends the project story beyond its planning decision. A detailed ground-floor plan describes the altered kitchen, dining and living accommodation; the loft plan sets out bedrooms, circulation and rooflight positions. The combined 3D design views help homeowners and the wider project team understand how the ground- and upper-level interventions fit together.

Architectural detailing

Plans, opening locations, section-related construction notes and dimensional coordination.

Building Regulations

Technical annotations for ventilation, drainage, insulation, fire protection and material performance.

Structural engineering coordination

Beam, foundation, opening and roof-related design interfaces identified for engineer verification and the appropriate statutory checks.

The supplied technical sheets illustrate Building Regulations drawing and structural coordination services. They are not a Building Control approval certificate or a set of signed structural calculations; engineering verification and statutory approval remain separate requirements.

Home improvements across EN11, Hertfordshire and Enfield

A clearer route through planning, technical drawings and structural coordination

Planning a rear extension, kitchen transformation, roof alteration or loft conversion? WEDRAWPLANS can scope the planning application, prepare coordinated Building Regulations drawings and work with structural engineers so each stage of your project can progress on a sound footing. We provide clear fixed-fee quotations setting out the work included.

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The proposal

Scope of work

  • Broxbourne planning approval dated 16 October 2026 for the partially retrospective rear extension
  • 3.4m garden-facing single-storey addition replacing an earlier conservatory
  • Careful planning narrative on nearby development, daylight, privacy and outlook
  • Three rooflights and generous garden-facing openings in the planning design
  • Separate ground-floor and gable-loft Building Regulations drawing stages
  • Technical plans covering ventilation, drainage, fire precautions and material performance
  • Architectural and structural engineering interfaces coordinated for the project team
  • Coordinated architectural plans and technical design views connecting the ground floor and gable loft

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The decision

Planning outcome & drawing work

Borough of Broxbourne decision 07/26/0627/HF, dated 16 October 2026, granted permission for a partially retrospective single-storey rear extension. Conditions identify drawing numbers PP06FE-PRO, PP4S-AA, PP03 and PP02-PRO, and require matching external materials. WEDRAWPLANS' August 2026 Planning, Design and Access Statement described retention of a 3.4m rear extension following removal of a conservatory, with three rooflights, garden-facing glazing and a low flat roof. It examined the actual nearby rear building line, comparable local permissions, privacy, daylight and the Council's 60-degree amenity guidance. The five selected planning-phase illustrations published here come from an earlier April 2025 design set and show the evolution of the rear and roof designs; they are not labelled as the formal decision-listed 2026 plans. Four separate September 2026 Building Regulations/technical drawings illustrate the ground floor, loft and 3D coordination. No separate loft planning decision, Building Control approval certificate or signed structural calculations were supplied for this case study, and none is implied.

Approved documents referenced by the council

Broxbourne's decision refers to PP06FE-PRO, PP4S-AA, PP03 and PP02-PRO. Displayed earlier planning-phase illustrations are exclusively PDF pages 5, 8, 9, 10 and 11 (PP05, PP07, PP11, PP12 and PP13); displayed technical sheets are BC-10, BC-04, BC-05 and BC-12. The technical package illustrates construction detailing and engineering interfaces, subject to the required independent statutory checks.

Architectural drawing service

How WEDRAWPLANS supported this approval

WEDRAWPLANS prepared a Design and Access Statement and architectural drawings for the retrospective extension application, responding to the relevant local planning context. The separate technical pack demonstrates how ground-floor changes and a gable loft conversion design can be illustrated with coordinated layouts, 3D presentation, material notes, ventilation, drainage, fire-protection and interfaces with structural engineer verification. This shows the value of a joined-up architectural drawing and consultant-coordination service without confusing the planning and technical approval stages.

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Relevant planning conditions

  • The 2026 householder planning permission relates to the partially retrospective rear extension only.
  • Works must accord with the decision-listed plans and matching external materials.
  • The earlier displayed planning design views are a selected project illustration set, not an assertion of a separate loft consent.
  • Building Regulations drawing provision and structural engineer coordination do not establish Building Control approval or signed structural design.

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