Mid Cornwall · TR9
St Columb Major loft conversions — a Mid Cornwall studio
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. In St Columb Major, that work is shaped by the place itself — St Columb Major is a substantial inland market town east of Newquay, with the (former) cathedral-status fifteenth-century church and an extensive Conservation Area covering the medieval core, with a building stock that leans toward medieval and Georgian townhouses and modern Persimmon-style estates.
St Columb Major sits in Mid Cornwall — covering TR9 from Indian Queens outward.
- Conservation Area
- ✓ Conservation Area experience built into the fee
- ✓ Cornwall Council regulars across every sub-area
- ✓ Same team on paper as on site
- ✓ Fixed-fee planning packages, no surprise invoices
Local proof — Recent loft conversion enquiries from St Columb Major have clustered around medieval and Georgian townhouses — we know the route through Cornwall Council on these.
Get a free feasibility viewLocal context
Why St Columb Major is its own job.
The planning backdrop in Mid Cornwall is real, not abstract: conservation Area is extensive, covering the historic streets including Fore Street and the church area. Listed buildings are common; A39 corridor shapes edge-of-town development. For loft conversion specifically, parts of St Columb Major sit within a designated Conservation Area, which means materials, fenestration and roof pitches all need to read sympathetically with the existing streetscape. Treat the TR9 parish brief as the design brief and the St Columb Major application has somewhere to land. Whether the project is on medieval and Georgian townhouses in the centre or further out toward Indian Queens, the loft conversion response is locally tuned.
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 St Columb Major.
01
Stairs eat space — a loft conversion lives or dies by where the new staircase lands and what it costs you on the floor below.
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
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.
04
Cut-roof Cornish properties are easier to convert than modern trussed roofs; the structural strategy varies completely.
Our process
How a St Columb Major 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
Choosing a loft conversion team that actually knows TR9.
Building stock
Across St Columb Major (TR9) we work on medieval and Georgian townhouses, Victorian terraces, Edwardian villas, post-war estates, modern Persimmon-style estates. Each stock type drives a different loft conversion response — medieval and Georgian townhouses in particular needs careful detailing here.
Parish & policy
St Columb Major is its own town in Mid Cornwall, with planning history that's specific to the TR9 catchment.
Coverage
We cover TR9 from our studio, with regular loft conversion jobs also running in Indian Queens. Most St Columb Major site visits get booked within the same week.
What does a first St Columb Major consultation cost?
Nothing. We come to the property, walk the site, talk through what works on a TR9 plot and follow up with a written feasibility note inside a week — no obligation either way.
Request a free visitFAQs
St Columb Major Loft Conversions — local questions answered.
- Can I live downstairs while it's built?
- Yes — most loft conversions are built with the family staying in the house. There'll be a couple of disruptive days when the staircase comes through, but the bulk of the work is upstairs. In St Columb Major 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.
St Columb Major is the hub for these neighbourhoods
We run loft conversions across St Columb Major and the surrounding TR9 neighbourhoods — same studio, same site team.
Other services in St Columb Major
The loft conversion jobs we're proudest of in St Columb Major are the ones where the planning route was clear before a single elevation was drawn.