How Much Does a Porch Cost in 2026? (UK)

Porch cost breakdown (UK 2026)

A porch is a relatively small build but every line item matters because there isn't much budget to absorb surprises. Typical 4m² porch build, brick-built with tiled pitched roof and composite door:

• Foundations & slab: £600–£1,200 (excavation, 600mm strip footings, oversite concrete, DPM, DPC)
• Brickwork & blockwork: £1,400–£2,800 (twin-leaf cavity walls matched to host bricks, lintels, sills, weep vents)
• Pitched roof structure & tiles: £1,000–£2,400 (rafters, felt, batten, matching tiles, lead flashing, soffit/fascia)
• Glazing & door: £1,200–£3,200 (composite door, glazed side panel, double-glazed window)
• Electrics & finishes: £300–£800 (lighting, socket, smoke alarm relocation, painted plaster)
• Removals & making good: £300–£600 (remove old door/frame, repair render, paving touch-ups)

Total: £4,800–£11,000 for a 4m² brick-built porch. uPVC enclosures skip the bricklayer and roof tiler and come in cheaper. Larger porches (6m²+) or those needing planning permission push the upper end.

uPVC porch vs brick porch — which is right for your house?

uPVC porches (£2,500–£5,500) suit semi-detached and terraced homes where the front door is in a sheltered recess. They install in 2–4 days, no scaffolding, no bricklayer needed. Lower thermal mass means they cool quickly overnight but are weatherproof and require no painting. Typical lifespan 25–30 years before the seals degrade.

Brick-built porches (£5,000–£12,500) suit detached and period properties where the porch must match the host build. Built with cavity walls, matching bricks, tiled pitched roof and composite door — visually indistinguishable from the original construction. Installs in 2–4 weeks. Lifespan 60+ years. Adds more property value (5–8% vs 2–4% for uPVC).

Do I need planning permission for a porch?

Most porches are permitted development — no planning application required — provided ALL of these hold: floor area no more than 3m²; overall height no more than 3m; no part within 2m of any boundary fronting a highway. Listed buildings, conservation areas and properties in National Parks have stricter rules and usually need consent. Building Regulations always apply (foundations, glazing safety, thermal performance, electrical Part-P), even for permitted development.

Porch cost by UK region (2026)

Brick-built porch for a 4m² footprint:

• London & South East: £7,500–£12,500
• South West & East: £6,500–£10,500
• Midlands: £5,500–£9,500
• North West, North East, Yorkshire: £5,000–£8,500
• Scotland & Wales: £5,000–£8,500

Regional differences mainly reflect bricklayer day rates and matching-brick availability for older houses.

What adds to porch cost?

Matching bricks for period homes (£300–£1,200 surcharge for reclaimed or specialist), lead flashing on tile roofs (£400–£900), structural opening alterations if the porch replaces the front door (£600–£1,800 for new lintel and structural calcs), underfloor heating (£500–£1,200 for a porch-sized loop), and bi-fold or French doors in place of a composite front door (£1,200–£3,500).

How to plan and budget your porch

1. Choose porch type and footprint

uPVC (£2,500–£5,500) for sheltered front doors; brick-built (£5,000–£12,500) for character matching and longevity. Most porches are 3–6m².

2. Check Permitted Development rules

Under 3m² / under 3m tall / 2m+ from highway boundary = no planning. Otherwise apply.

3. Confirm foundations and DPC

Brick porches need 600mm strip foundations and a continuous damp-proof course tied to the house DPC. uPVC porches sit on a slab and dwarf wall.

4. Compare three porch builder quotes

Each quote should itemise glazing, roof, door, electrics and FENSA/CERTASS certification. Use BestBuilders to match with three vetted local porch installers.

FAQs

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