North Cornwall · PL30
Loft Conversions St Tudy: PL30 planning, North Cornwall 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 PL30 plot rarely works elsewhere — St Tudy is a rural parish in the PL30 area, with farmsteads, lanes and scattered homes defining its built character, with a building stock that leans toward scattered modern homes and smallholdings.
St Tudy sits in North Cornwall — covering PL30 from Bodmin, St Breward, Washaway outward.
- Rural / open-countryside policy area
- ✓ 30+ years of Cornwall Council approvals
- ✓ Cornwall Council regulars across every sub-area
- ✓ Fixed-fee planning packages, no surprise invoices
- ✓ Measured-survey accuracy from day one
Local proof — Recent loft conversion enquiries from St Tudy have clustered around scattered modern homes — we know the route through Cornwall Council on these.
Get a free feasibility viewLocal context
Why St Tudy is its own job.
Open-countryside policy, access lanes, drainage and agricultural building history all need to be addressed before drawings go too far. That sets the scene before any design work begins. For loft conversion specifically, 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 St Tudy application gets approved at eight weeks or stalls in committee. The scattered modern homes that dominate St Tudy (and continue out toward Washaway) 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 St Tudy.
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 St Tudy 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 St Tudy homeowners pick a local studio for loft conversion.
Building stock
Across St Tudy (PL30) we work on farmhouses, converted barns, rural cottages, smallholdings, scattered modern homes. Each stock type drives a different loft conversion response — scattered modern homes in particular needs careful detailing here.
Parish & policy
St Tudy sits in the parish of St Tudy, which matters for how parish-level consultation lands on a loft conversion application.
Coverage
We cover PL30 from our studio, with regular loft conversion jobs also running in Bodmin, St Breward, Washaway. Most St Tudy site visits get booked within the same week.
How quickly can you visit a St Tudy site?
Usually within the same week. St Tudy (PL30) is on our regular North Cornwall run, alongside Bodmin, St Breward, Washaway. First visits are free and you'll get an honest feasibility view inside seven days.
Request a free visitFAQs
St Tudy Loft Conversions — local questions answered.
- 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. In St Tudy specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- 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.
- 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 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.
St Tudy is part of Bodmin
St Tudy sits inside the Bodmin catchment — we cover both as one loft conversion territory.
See Loft Conversions in Bodmin →Other services in St Tudy
Nearby places we cover
Designing a loft conversion in St Tudy is as much about reading the parish as reading the brief; we do both, and the planning outcomes follow.