Roseland · TR2
Portloe extensions — a Roseland studio
Extensions are the bread and butter of Cornish homes — adding the kitchen-diner the original layout never had, the bedroom for a growing family, or the light and views the back of the house should always have had. In Portloe, that work is shaped by the place itself — Portloe is a harbour-side settlement in the TR2 area, with compact lanes, coastal exposure and a working-waterfront character, with a building stock that leans toward steep-lane houses and harbour cottages.
Portloe sits in Roseland — covering TR2 from Veryan, Pendower, Truro outward.
- Conservation Area
- Cornwall AONB
- Coastal exposure zone
- ✓ Cornwall Council regulars across every sub-area
- ✓ Free first site visit, no obligation
- ✓ Conservation Area experience built into the fee
- ✓ Same team on paper as on site
Who this is for
Portloe runs the full mix — owner-occupier, holiday-let, commercial and the occasional smallholding — so we scope every extension enquiry from the use-class up.
Local watch-list
Portloe-specific issues we screen on the first visit.
Watch #1
Conservation Area material and fenestration controls in central Portloe
Watch #2
AONB landscape-impact scrutiny on visible elevations
Watch #3
Coastal exposure driving fixing, render and joinery spec
Local proof — Our Roseland workload means a Portloe extension project never has to wait for an out-of-county team to drive down.
Get a free feasibility viewFAQs
Portloe Extensions — local questions answered.
- Will my house be liveable during the build?
- For most rear and side extensions, yes — we sequence the works so the kitchen and one bathroom stay functional until the new build is watertight and connected. In Portloe specifically, we'd start by checking the Conservation Area boundary before committing to a direction.
- Do I need planning permission for an extension?
- Often no — single-storey rear extensions, side extensions and modest two-storey additions can sit inside permitted development on a typical detached house. Conservation Areas, AONB and Article 4 zones remove some of those rights, so we always check the address first.
- What about the Party Wall Act?
- If you share a wall with a neighbour or build close to a boundary, the Act applies. We flag it early, recommend a surveyor and keep the programme aligned with the notice period.
- How much does an extension cost in Cornwall?
- Build costs in Cornwall typically run from around £2,200 to £3,200 per square metre for a good-quality single-storey extension, more for kitchen-grade fit-out or complex glazing. We give a realistic budget before drawings start, not after.
- Can you handle the build as well as the design?
- Yes — that's the whole point of the studio. One contract, one point of contact, no finger-pointing between architect and builder when something needs a decision on site.
Local context
Why Portloe is its own job.
The planning backdrop in Roseland is real, not abstract: harbour settings bring tight access, overlooking, flood risk and heritage character into play on even modest alterations. For extension specifically, parts of Portloe sit within a designated Conservation Area, which means materials, fenestration and roof pitches all need to read sympathetically with the existing streetscape; the surrounding landscape falls inside the Cornwall Area of Outstanding Natural Beauty, so massing, height and landscape impact carry extra weight in any planning decision; coastal salt-laden air around Portloe drives detailing choices — fixings, render systems and timber treatments all need to be specified for exposure. Treat the TR2 parish brief as the design brief and the Portloe application has somewhere to land. Whether the project is on steep-lane houses in the centre or further out toward Veryan, the extension response is locally tuned.
Planning note
Most extensions in Cornwall are either permitted development or a straightforward householder application — but Conservation Area and AONB sites need a more careful design conversation upfront.
What we focus on
Extensions considerations specific to Portloe.
01
Extensions over a certain proportion of the original house trigger full Part L upgrade obligations to the existing building — worth knowing before brief is set.
02
Wind and sea-spray exposure can drive material choices on west-facing extensions; we detail accordingly.
03
Drainage on older Cornish properties is rarely on a clean modern map; CCTV survey before design is often money well spent.
04
Permitted development for rear extensions runs to four metres on a detached house, three on a semi or terrace — but Article 4 areas remove this in some parishes.
Our process
How a Portloe extension project runs.
Step 1
Brief
We meet on site, talk through how you live now and what's missing from the current layout.
Step 2
Design
Two or three sketch directions with rough budgets, then refinement of the chosen route.
Step 3
Approvals
Planning or Cert of Lawfulness, then a full building regs package.
Step 4
Build
Either through your own builder with our drawings, or as a full build by our team.
Step 5
Handover
Snag, certify, hand over the keys to your new space.
Typical single-storey rear extensions run twelve to twenty weeks on site; two-storey and wraparound projects sixteen to thirty weeks.
Local fabric
Why Portloe homeowners pick a local studio for extension.
Building stock
Across Portloe (TR2) we work on harbour cottages, net lofts, granite terraces, holiday flats, steep-lane houses. Each stock type drives a different extension response — steep-lane houses in particular needs careful detailing here.
Parish & policy
Portloe sits in the parish of Portloe, which matters for how parish-level consultation lands on a extension application.
Coverage
We cover TR2 from our studio, with regular extension jobs also running in Veryan, Pendower, Truro. Most Portloe site visits get booked within the same week.
What does a first Portloe consultation cost?
Nothing. We come to the property, walk the site, talk through what works on a TR2 plot and follow up with a written feasibility note inside a week — no obligation either way.
Request a free visitPortloe is part of Veryan
Portloe sits inside the Veryan catchment — we cover both as one extension territory.
See Extensions in Veryan →Other services in Portloe
Nearby places we cover
The extension jobs we're proudest of in Portloe are the ones where the planning route was clear before a single elevation was drawn.