South Cornwall · PL23
One studio for loft conversion in Polruan
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. Working in Polruan means starting from the PL23 context — Polruan sits opposite Fowey across the river, accessible by passenger ferry, with a tightly packed slate-cottage village clinging to the cliffs above the harbour, with a building stock that leans toward modern carefully detailed coastal homes and fishermen's terraces.
Polruan sits in South Cornwall — covering PL23 from Fowey outward.
- Conservation Area
- Cornwall AONB
- Coastal exposure zone
- Rural / open-countryside policy area
- ✓ Fixed-fee planning packages, no surprise invoices
- ✓ Measured-survey accuracy from day one
- ✓ Local to South Cornwall — not a national franchise
- ✓ Same team on paper as on site
Our process
How a Polruan 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 proof — Most Polruan loft conversion clients we work with are second-time builders — they've seen the templated approach fail once already.
Get a free feasibility viewWhat we focus on
Loft Conversions considerations specific to Polruan.
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
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.
03
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.
04
Cut-roof Cornish properties are easier to convert than modern trussed roofs; the structural strategy varies completely.
Local context
Why Polruan is its own job.
Two things shape a Polruan application: parish character and policy. On policy — conservation Area covers the village core; AONB and Heritage Coast across Lanteglos parish. Cliff-edge sites face strict controls and access for any build is logistically tight. For loft conversion specifically, parts of Polruan 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 Polruan drives detailing choices — fixings, render systems and timber treatments all need to be specified for exposure; 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. Get that local reading right and the rest of the Polruan programme tends to run on time. On modern carefully detailed coastal homes in particular — the kind you'll also find toward Fowey — the loft conversion brief always has to read the existing fabric first.
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.
Local watch-list
Common Polruan pitfalls we plan around.
Watch #1
Conservation Area material and fenestration controls in central Polruan
Watch #2
AONB landscape-impact scrutiny on visible elevations
Watch #3
Coastal exposure driving fixing, render and joinery spec
Watch #4
Tighter Local Plan tests on isolated rural dwellings
Polruan is part of Fowey
Polruan sits inside the Fowey catchment — we cover both as one loft conversion territory.
See Loft Conversions in Fowey →Local fabric
Polruan loft conversions — the local-studio difference.
Building stock
Across Polruan (PL23) we work on slate-hung cottages, fishermen's terraces, Victorian villas above the village, modern carefully detailed coastal homes. Each stock type drives a different loft conversion response — modern carefully detailed coastal homes in particular needs careful detailing here.
Parish & policy
Polruan sits in the parish of Lanteglos, which matters for how parish-level consultation lands on a loft conversion application.
Coverage
We cover PL23 from our studio, with regular loft conversion jobs also running in Fowey. Most Polruan site visits get booked within the same week.
Can you handle both planning and build in Polruan?
Yes — design, planning, building regs and full construction run under one roof. For clients with an existing Polruan builder we can stop at a tender-ready Full Plans pack instead.
Request a free visitWho this is for
Polruan runs the full mix — owner-occupier, holiday-let, commercial and the occasional smallholding — so we scope every loft conversion enquiry from the use-class up.
FAQs
Polruan Loft Conversions — local questions answered.
- 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. In Polruan specifically, we'd start by checking the Conservation Area boundary before committing to a direction.
- 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.
- 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.
- 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.
Other services in Polruan
Nearby places we cover
If you're balancing ambition against PL23 planning realism, our Polruan loft conversion work threads that needle without the usual drama.