Orangery vs Conservatory: Complete Guide in New Forest
An orangery sits between a conservatory and a full extension. It has solid walls with large windows and a flat roof with a central lantern — giving it more presence and year-round usability than a conservatory, at a lower cost than a brick-built extension. Here is what New Forest homeowners — covered by New Forest District Council — need to know about costs, planning, and timelines.
Local cost range — New Forest
£2,000–£3,000/m²
New Forest properties — especially those inside the National Park — require premium natural materials to comply with NFNPA design guidelines. Expect 10–20% higher build costs than the Dorset average.
Orangery vs Conservatory: Complete Guide rules in New Forest
New Forest falls under New Forest District Council (New Forest District Council). Much of the New Forest falls within the New Forest National Park, which has its own planning authority (NFNPA). Properties inside the National Park have significantly reduced Permitted Development rights. Properties outside the park boundary but within the district follow standard PD rules.
Planning applications (annual)
~2,500
Average decision time
8 weeks
National Park coverage
Significant
Approval rate
~85%
What you need to know
Orangery vs conservatory vs extension
A conservatory is mostly glass (75%+ glazed roof and walls). An orangery has solid brick or rendered walls with large windows and a flat roof with a glazed lantern. A full extension is entirely solid construction. Orangeries look more substantial than conservatories and are warmer in winter and cooler in summer.
Design and materials
Modern orangeries typically use brick or rendered columns with aluminium bi-fold doors and a flat roof with a central roof lantern. The solid perimeter walls allow for better insulation than a conservatory, making the space comfortable year-round without excessive heating costs.
How much does it cost in New Forest?
Local New Forest rates: £2,000–£3,000/m². The table below shows national Dorset figures for reference.
| Item | Typical Cost Range |
|---|---|
| Small orangery (12–16m²) | £30,000–£50,000 |
| Medium orangery (16–25m²) | £45,000–£70,000 |
| Large orangery (25–35m²) | £65,000–£100,000 |
| Roof lantern | £3,000–£8,000 |
| Professional fees | £2,000–£4,000 |
Prices based on Dorset rates, 2026. Local New Forest range: £2,000–£3,000/m².
Planning permission in New Forest
Orangeries usually fall under Permitted Development as they are structurally similar to a single-storey extension. Standard PD rules apply — 4m/8m depth limits, height restrictions, and boundary conditions. In conservation areas, the solid walls and flat roof are often more acceptable than a glazed conservatory.
Standard single-storey extension PD rules apply. The 75% glazed roof rule that distinguishes conservatories from extensions under Building Regulations does not affect PD — it affects whether Building Regulations apply.
New Forest District Council — local planning context
Much of the New Forest falls within the New Forest National Park, which has its own planning authority (NFNPA). Properties inside the National Park have significantly reduced Permitted Development rights. Properties outside the park boundary but within the district follow standard PD rules.
New Forest District Council processes approximately ~2,500 planning applications per year, with an approval rate of ~85%. Average decision time is 8 weeks.
Building regulations
If less than 75% of the roof and 50% of the walls are glazed, Building Regulations apply in full (same as a standard extension). Most orangeries fall into this category. If the glazing thresholds are exceeded, a thermal separation (door between house and orangery) may be required.
Typical timeline
| Phase | Duration |
|---|---|
| Design | 2–3 weeks |
| Build | 8–14 weeks |
Frequently asked questions
Orangery vs Conservatory: Complete Guide in other areas
Related guides
- Orangery vs Conservatory: Complete Guide 2026 — full national guide
- House extension plans in New Forest
- Orangery vs Conservatory: Complete Guide cost guide
- Orangery vs Conservatory: Complete Guide costs in New Forest
- Single Storey Rear Extension: Complete Guide 2026
- Kitchen Extension: Design, Cost & Planning Guide 2026
- Porch Extension Guide: Cost, Planning & Design 2026
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Useful links for New Forest homeowners
External resources we recommend. Links open in a new tab.
Local Authority
- New Forest District Council PlanningNFDC planning guidance and application forms
- New Forest National Park Authority PlanningNFNPA planning portal — separate from district council
- NFDC Conservation AreasMaps and appraisals for district conservation areas
- Check long-term flood riskEnvironment Agency service — enter your postcode