Conservatory Cost UK 2026: Full Price Guide by Style & Size
A UK conservatory typically costs £8,500–£32,000 supplied & fitted in 2026, with most homeowners spending £12,000–£22,000. Price is driven by style (lean-to vs Victorian vs orangery), size (3x3m vs 5x4m), glazing spec (standard double-glazed vs solar-control vs self-cleaning), roof type (polycarbonate vs glass vs solid tiled roof) and the region. A typical 4x3m P-shape uPVC conservatory with a tiled solid roof lands at £18,500–£24,500 in 2026 — the most popular spec for UK semis since 2023.
How much does a conservatory cost in 2026?
Typical 2026 UK conservatory costs (supplied & fitted, including base):
- Lean-to (3x3m) — £8,500–£13,500
- Edwardian (3.5x3.5m) — £12,000–£18,000
- Victorian (4x3.5m, 3 facets) — £13,500–£19,500
- P-shape (4.5x3.5m + 2m return) — £17,500–£24,500
- Orangery (4x4m brick piers, glass lantern) — £22,000–£32,000
Add £2,200–£5,800 for a solid tiled roof (vs polycarbonate), £1,400–£2,800 for premium solar-control glazing, and £1,600–£4,200 for bifold doors instead of French doors. Most conservatories under 30m² fall under Permitted Development — no planning needed.
Conservatory Cost by Style
Style choice changes the visual character and the price. Here’s what each option costs in 2026 with mid-range uPVC frames, double-glazed glass and a polycarbonate roof unless noted.
Lean-to (Mediterranean)
Simple rectangular shape with a single-pitch roof sloping away from the house. Cheapest style, fastest install (5–7 days), best for bungalows and modern semis where roof clearance under the first-floor windows is limited.
Edwardian (square / rectangular)
Classic four-sided pitched roof rising to a central ridge. Maximises internal floor area for a given footprint — the most usable square metre per pound. Most popular style for new conservatories from 2015–2022.
Victorian (3 or 5 facets)
Period feature with 3 angled facets (or 5 for grand designs) creating a faceted bay window effect. Steep pitched roof with ornate crestings and finials. Suits Victorian and Edwardian period homes. Slightly less efficient on floor area than Edwardian for the same width.
P-shape (Victorian + Lean-to combination)
Larger combination shape: Victorian-style main bay with a lean-to return creating an L. Best for separating a dining area from a lounge area within the same conservatory. Needs a wider rear elevation (5m+) to look balanced.
Orangery (brick piers + glass lantern roof)
Brick piers between glazing panels with a flat or shallow-pitched roof topped by a glass lantern. Feels more like a true extension than a conservatory — can be used year-round without overheating. Best ROI for properties valued £450k+.
What Drives the Final Bill
Two conservatories on the same street can quote £5,000 apart for the same footprint. The six drivers that explain the spread:
1. Roof type
Polycarbonate roof: baseline (cheapest, but noisy in rain, overheats in summer). Glass: +£1,800–£3,500. Solid tiled (Guardian, LivinROOF, Equinox): +£2,200–£5,800. The solid roof has become the default for new builds since 2023 because it converts the room from “summer-only” to year-round usable.
2. Glazing spec
Standard 28mm double glazing: baseline. Solar-control low-E glass (Pilkington Activ, Saint-Gobain Cool-Lite): +£1,400–£2,800 total. Triple glazing: +£2,400–£4,800 total — useful in North-facing aspects, marginal benefit south-facing.
3. Door type
Standard French doors: included. Sliding patio doors: +£400–£900. Aluminium bifold doors (3-pane, opening): +£1,600–£2,800. 5-pane bifold: +£2,800–£4,200. Bifolds give the entire side wall opening to the garden in summer.
4. Base & foundations
Standard 600mm strip foundation + concrete slab: £2,200–£4,400. Pile foundations (poor ground, sloping site, tree roots within 5m): +£1,800–£4,200. Existing patio that needs full removal first: +£600–£1,400.
5. Frame material
uPVC: baseline. Aluminium (slimmer sightlines, contemporary look): +25–35% on frame cost. Hardwood (oak, accoya): +50–80% — usually only orangeries. Composite hybrid (aluminium outside, wood inside): +40–60%.
6. Region
London: +25–35% on the same spec. South East +15%. Wales, Scotland and the North 5–12% below the UK average. Trickier-access sites (rear-garden only through the house, no side access) add £600–£1,400 labour.
Conservatory Cost by UK Region
Based on 320+ recent UK conservatory quotes, 4x3.5m P-shape uPVC, solid tiled roof, French doors, mid-range spec:
Real Project: 4x3.5m P-shape, Leeds LS6
3-bed semi-detached in Headingley. Rear south-west garden. P-shape uPVC conservatory replacing an old 1990s lean-to. Solid tiled Equinox roof, two Velux roof windows, French doors to the garden plus a side single door. Completed March 2026.
| Strip-out existing lean-to + skip | £680 |
| Foundations + dwarf wall + concrete slab | £4,200 |
| uPVC frames + glass (anthracite grey) | £5,800 |
| French doors + side single door | £1,400 |
| Equinox solid tiled roof + 2 Velux | £5,400 |
| Plastered ceiling + 4 downlighters | £1,250 |
| Tiled floor + skirting | £1,400 |
| Electrics: 4 sockets, mains alarm spur | £820 |
| Plumbed radiator off central heating | £700 |
| Total (8 working days on site) | £21,850 |
Valuation uplift: £392,000 pre-works → £415,000 post-works (RICS appraisal, April 2026). Net value-add roughly £1,150 — conservatories rarely return more than their build cost, but a tiled roof + plastered ceiling spec lifts ROI vs polycarbonate.
Common Questions
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How we researched these prices
Pricing in this guide is built from 320+ recent UK conservatory quotes collected through BestBuilders between January and May 2026, plus published 2026 trade pricing from suppliers and installer networks. Cross-checked against:
- Anglian Home Improvements, Everest & Conservatory Outlet 2026 published pricing
- Guardian Warm Roof, LivinROOF, Equinox 2026 trade price lists for solid roof systems
- Pilkington & Saint-Gobain 2026 glass specifications and pricing
- Office for National Statistics Construction Output Price Indices for regional labour weighting
- Planning Portal for Permitted Development rules and householder application fees
- Cross-checked against published 2026 quotes on Checkatrade, Houzz, Real Homes & Which? Trusted Traders
Prices include VAT. Where ranges are quoted, they cover the 10th–90th percentile of observed jobs.Reviewed by the BestBuilders editorial team on . Read more about how we research & fact-check.
When a Conservatory Needs Building Regulations
A conservatory is normally exempt from building regulations, which is part of why it is cheaper than a full extension — but only while it keeps four conditions: it is built at ground level and under 30 square metres, it is separated from the house by external-quality walls, doors or windows, it has its own independent heating with separate controls, and any glazing near doors and at low level is safety glass. Remove the separating doors to open it into the kitchen, or heat it off the house system, and it is no longer exempt.
That matters because the moment it counts as habitable space it must meet the thermal and structural standards of an extension, which changes both the cost and the paperwork. Planning permission is a separate question and is usually not required under permitted development, though conservation areas and listed buildings are exceptions. Our conservatory planning guide covers where consent is needed.
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