East Cornwall · PL15 · Cornwall Council East
Passivhaus architect in Launceston — low-energy homes done properly
Passivhaus in Launceston 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 rural plots in PL15, the shading from mature trees 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. A Launceston brief starts on the street, not the screen — Launceston is the ancient capital of Cornwall, just over the Tamar from Devon, with the Norman castle, walled medieval core and a substantial Conservation Area covering the historic streets, with a building stock that leans toward Edwardian villas and modern Bovis and Persimmon estates.
Launceston sits in East Cornwall — just off the A30; with Exeter the closest city; covering PL15 from Egloskerry, Lewannick outward.
- Conservation 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
Our process
How a Launceston 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 proof — Most Launceston homeowners come to us after a new build quote elsewhere felt vague on planning — we lead with feasibility instead.
Get a free feasibility viewWhat we focus on
New Builds considerations specific to Launceston.
01
AONB and Heritage Coast designations apply to large stretches of the county; isolated new builds outside settlement boundaries face a much higher policy bar.
02
Off-grid services — package treatment plants, borehole supply, off-mains gas — are common on rural Cornish plots and need designing, not assuming.
03
Self-build CIL exemption requires the right documentation in the right order; missing a step costs five-figure sums.
04
Cornwall's housing policy increasingly favours principal residence and replacement dwelling schemes over open-market new builds in some parishes.
Local context
Why Launceston is its own job.
Conservation Area is extensive, covering the medieval walled town, the castle approach and the southern Conservation Area at Newport. Listed buildings are common; significant edge-of-town development pressure on the A30. For new build specifically, parts of Launceston sit within a designated Conservation Area, which means materials, fenestration and roof pitches all need to read sympathetically with the existing streetscape. So every Launceston job runs as a PL15-specific piece of work — local policy, local fabric, local builders. Most of our new build work in Launceston lands on Edwardian villas, with detailing that has to nod to the wider Lewannick streetscape.
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.
Local watch-list
The PL15 constraints that shape a new build brief.
Watch #1
Town walls and castle setting scrutiny on central plots
Watch #2
Steep medieval street grain restricting access
Watch #3
Conservation Area boundary cutting across mixed-age stock
Watch #4
Tamar Valley AONB at the east edge
Launceston is the hub for these neighbourhoods
We run new builds across Launceston and the surrounding PL15 neighbourhoods — same studio, same site team.
- Warbstow
PL15
- North Petherwin
PL15
- Boyton
PL15
- South Petherwin
PL15
- Egloskerry
PL15
- Lewannick
PL15
- Altarnun
PL15
- Polyphant
PL15
- Tregadillett
PL15
Local fabric
One PL15 studio, one new build job — start to finish.
Building stock
Across Launceston (PL15) we work on medieval and Georgian townhouses, Victorian terraces, Edwardian villas, post-war estates, modern Bovis and Persimmon estates. Each stock type drives a different new build response — Edwardian villas in particular needs careful detailing here.
Parish & policy
Launceston is its own town in East Cornwall, with planning history that's specific to the PL15 catchment.
Coverage
We cover PL15 from our studio, with regular new build jobs also running in Egloskerry, Lewannick, South Petherwin. Most Launceston site visits get booked within the same week.
Do you work in Launceston regularly?
Yes — Launceston and the wider PL15 catchment are core territory. We're typically on a East Cornwall site at least once a week, so logistics are baked in, not bolted on.
Request a free visitRecent work nearby
Recent Southgate-adjacent shop-to-flat we delivered kept the Georgian shopfront and inserted a contemporary rear pod.
See more recent East Cornwall work →Who this is for
In Launceston the new build brief is almost always a private homeowner improving a forever home — so we lead with feasibility and long-term value, not show-home rhetoric.
FAQs
Launceston New Builds — local questions answered.
- Is Passivhaus worth it in Launceston?
- 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 PL15, 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.
- 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. In Launceston specifically, we'd start by checking the Conservation Area boundary before committing to a direction.
- 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.
- Can I build a new house on my plot in Cornwall?
- 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.
Other services in Launceston
Nearby places we cover
Local neighbourhoods in Launceston
A Launceston 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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