East Cornwall · PL13
Passivhaus architect in Polperro — low-energy homes done properly
Passivhaus in Polperro is not a marketing sticker — it's a numbers-driven design method that requires orientation modelling, air-tightness planning and MVHR sizing from the first sketch. On coastal plots in PL13, the wind exposure is the first variable we test in PHPP. A bespoke new build is the longest project we do, and the most rewarding. From plot appraisal through planning, building regulations and construction, you work with one team from the first sketch to the handover walk-round. In Polperro, that work is shaped by the place itself — Polperro is a famously photogenic East Cornwall fishing village with a tight Conservation Area covering the harbour, smugglers' cottages and the steep lanes inland — vehicle access is restricted in the village core, with a building stock that leans toward whitewashed cottages around the harbour and carefully detailed replacement dwellings.
Polperro sits in East Cornwall — covering PL13 from Looe, Talland outward.
- Conservation Area
- Cornwall AONB
- Coastal exposure zone
- Rural / open-countryside policy area
- ✓ Full PHPP modelling available
- ✓ MVHR sizing and air-tightness planning
- ✓ 8–15% build premium, ~zero running cost
- ✓ Cost: £3,600–£4,800/m² built
Who this is for
Polperro runs the full mix — owner-occupier, holiday-let, commercial and the occasional smallholding — so we scope every new build enquiry from the use-class up.
Local watch-list
What usually catches new build projects out in Polperro.
Watch #1
Conservation Area material and fenestration controls in central Polperro
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
Local proof — Recent new build enquiries from Polperro have clustered around whitewashed cottages around the harbour — we know the route through Cornwall Council on these.
Get a free feasibility viewFAQs
Polperro New Builds — local questions answered.
- Is Passivhaus worth it in Polperro?
- Financially, the 8–15% build premium pays back in 15–20 years at current energy prices. Comfort-wise, the payback is immediate. On new-builds in PL13, we recommend it on any plot with reasonable orientation.
- Do you produce full PHPP models?
- Yes, or we work alongside a certified PHPP consultant. Either route lands the same result — a fully modelled, air-tightness-tested certified Passivhaus.
- What's the cost difference vs a standard new build?
- £3,600–£4,800/m² for Passivhaus vs £3,000–£4,000/m² for a well-insulated standard build. Premium is smaller than most people expect.
- Can I build a new house on my plot in Polperro?
- Sometimes yes, sometimes no — and the honest answer needs a planning policy review of the specific site. Settlement boundary, designations, access and policy on isolated dwellings all weigh in. We give a frank read at first consultation rather than a sales pitch. In Polperro specifically, we'd start by checking the Conservation Area boundary before committing to a direction.
- What about utilities, drainage and access?
- All designed and applied for as part of the package — water, electric, off-mains drainage where mains isn't viable, and highways access agreement with Cornwall Council where required.
- What's a replacement dwelling and is mine eligible?
- If a habitable dwelling exists on the plot, you can often replace it — within volumetric and design constraints set by Cornwall's Local Plan. Derelict structures sometimes qualify, sometimes don't, depending on lawful use history.
Local context
Why Polperro is its own job.
Locally, conservation Area covers the entire harbour and historic core; AONB and Heritage Coast across the parish. Vehicle restrictions and tight access shape construction logistics on every project. For new build specifically, parts of Polperro 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 Polperro 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. Which is why we scope Polperro projects parish-up, not template-down — the PL13 context shapes the design from day one. Whether the project is on whitewashed cottages around the harbour in the centre or further out toward Looe, the new build response is locally tuned.
Planning note
Cornwall's planning policy on new dwellings is among the most restrictive in England outside Greater London. The first conversation should be a planning conversation, not a design one.
What we focus on
New Builds considerations specific to Polperro.
01
Cornwall's housing policy increasingly favours principal residence and replacement dwelling schemes over open-market new builds in some parishes.
02
Self-build CIL exemption requires the right documentation in the right order; missing a step costs five-figure sums.
03
Off-grid services — package treatment plants, borehole supply, off-mains gas — are common on rural Cornish plots and need designing, not assuming.
04
Replacement dwellings have specific volumetric tests — getting the ratio between existing footprint and proposed floor area right is the difference between approval and refusal.
Our process
How a Polperro new build project runs.
Step 1
Plot review
Site visit, planning history check, designation review and an honest feasibility verdict.
Step 2
Concept design
Sketches that test the plot in massing, orientation and approach before any drawings are committed.
Step 3
Planning
Pre-app, full planning, consultee management and condition discharge.
Step 4
Technical design and build prep
Building regs, structural design, services strategy and contractor procurement.
Step 5
Construction and handover
Build delivered under contract administration with regular client reviews.
Most bespoke new builds run eighteen to thirty months from instruction to keys, depending on site, planning route and build complexity.
Local fabric
Why Polperro homeowners pick a local studio for new build.
Building stock
Across Polperro (PL13) we work on whitewashed cottages around the harbour, Victorian villas above the village, modern infill on the upper lanes, carefully detailed replacement dwellings. Each stock type drives a different new build response — whitewashed cottages around the harbour in particular needs careful detailing here.
Parish & policy
Polperro is its own town in East Cornwall, with planning history that's specific to the PL13 catchment.
Coverage
We cover PL13 from our studio, with regular new build jobs also running in Looe, Talland, Duloe. Most Polperro site visits get booked within the same week.
What does a first Polperro consultation cost?
Nothing. We come to the property, walk the site, talk through what works on a PL13 plot and follow up with a written feasibility note inside a week — no obligation either way.
Request a free visitOther services in Polperro
Nearby places we cover
A Polperro Passivhaus costs 8–15% more to build and roughly nothing to run — the payback is in comfort as much as bills, and the resale market for certified homes is strengthening year on year.
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