Roseland · TR2
Loft Conversions Tregony: TR2 planning, Roseland fabric
A well-designed loft conversion adds a bedroom, an en-suite and useful storage to homes that were never built with the upper floor in mind — usually inside permitted development and almost always cheaper per square metre than extending sideways. What works on a TR2 plot rarely works elsewhere — Tregony is an AONB former rotten borough at the head of the Fal estuary, with a wide Georgian high street and one of Cornwall's quieter period property markets, with a building stock that leans toward Edwardian houses and Victorian villas.
Tregony sits in Roseland — covering TR2 from Veryan outward.
- Conservation Area
- Cornwall AONB
- Rural / open-countryside policy area
- ✓ Plain-English feasibility before any drawings
- ✓ Conservation Area experience built into the fee
- ✓ Free first site visit, no obligation
- ✓ One studio — design, planning and build under one roof
Local proof — Most Tregony loft conversion clients we work with are second-time builders — they've seen the templated approach fail once already.
Get a free feasibility viewLocal context
Why Tregony is its own job.
Conservation Area covers the historic high street and church; AONB across the parish. Former borough heritage and listed buildings shape design considerations. That sets the scene before any design work begins. For loft conversion specifically, parts of Tregony 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; Cornwall Council's Local Plan applies tighter tests to isolated rural dwellings here, so design rationale and policy fit need to be set out clearly from the outset. It's the kind of detail that decides whether a Tregony application gets approved at eight weeks or stalls in committee. The Edwardian houses that dominate Tregony (and continue out toward Veryan) set the tone for any loft conversion scheme here.
Planning note
Most Cornish loft conversions are permitted development — but a Certificate of Lawfulness is worth the extra week and small fee for resale protection.
What we focus on
Loft Conversions considerations specific to Tregony.
01
Cornish slate roofs come in a huge range of pitches — anything below a 30° pitch struggles to give usable headroom without raising the ridge.
02
Building regs require minimum 2.0 metre headroom over the stairs and 30-minute fire protection on the existing stair enclosure — both shape the design.
03
Stairs eat space — a loft conversion lives or dies by where the new staircase lands and what it costs you on the floor below.
04
Permitted development volume allowances are 40 cubic metres on a terrace and 50 on a detached or semi — but rear dormers in Conservation Areas often need full planning.
Our process
How a Tregony loft conversion project runs.
Step 1
Feasibility
Roof, headroom, stair landing and structural assessment.
Step 2
Design
Layout options that respect the staircase, headroom and bathroom positioning.
Step 3
Approvals
Planning or permitted development confirmation, plus building regs.
Step 4
Build
Sequenced to keep the family living downstairs throughout most of the work.
Step 5
Handover
Finish, snag, certify, hand over the keys.
Loft conversions typically run six to eighteen weeks on site depending on type, with four to eight weeks of design and approvals beforehand.
Local fabric
Why Tregony homeowners pick a local studio for loft conversion.
Building stock
Across Tregony (TR2) we work on Georgian townhouses on Fore Street, Victorian villas, Edwardian houses, post-war bungalows, modern AONB-sensitive infill. Each stock type drives a different loft conversion response — Edwardian houses in particular needs careful detailing here.
Parish & policy
Tregony is its own town in Roseland, with planning history that's specific to the TR2 catchment.
Coverage
We cover TR2 from our studio, with regular loft conversion jobs also running in Veryan, Grampound. Most Tregony site visits get booked within the same week.
How quickly can you visit a Tregony site?
Usually within the same week. Tregony (TR2) is on our regular Roseland run, alongside Veryan, Grampound. First visits are free and you'll get an honest feasibility view inside seven days.
Request a free visitFAQs
Tregony Loft Conversions — local questions answered.
- Will I have enough headroom?
- We need a minimum 2.2 metres ridge-to-joist before alterations to make a usable conversion straightforward. Less than that and we'd consider raising the ridge, which is a planning conversation, not a permitted development one. In Tregony specifically, we'd start by checking the Conservation Area boundary before committing to a direction.
- Do I need planning permission for a loft conversion?
- Often no — most loft conversions sit inside permitted development on a typical Cornish house. Conservation Areas, AONB and properties on principal elevations need full planning, and we'll confirm at first review.
- How much does a loft conversion cost?
- A simple Velux conversion starts around £30,000 in Cornwall; a rear dormer with en-suite typically runs £45,000 to £65,000; hip-to-gable and mansards more. Stair location and bathroom complexity drive most of the cost.
- How long does a loft conversion take?
- Allow six to ten weeks on site for a Velux conversion, eight to fourteen weeks for a dormer, twelve to eighteen weeks for hip-to-gable. Add four to eight weeks for design and regs beforehand.
- Will it add value?
- An extra bedroom and bathroom typically adds noticeably more value than the build cost in most Cornish markets — but the value matters less than the daily use you'll get from the space.
Other services in Tregony
Nearby places we cover
Designing a loft conversion in Tregony is as much about reading the parish as reading the brief; we do both, and the planning outcomes follow.