East Cornwall · PL12
Passivhaus architect in Saltash — low-energy homes done properly
Passivhaus in Saltash 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 PL12, 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. A Saltash brief starts on the street, not the screen — Saltash is the gateway town to Cornwall over the Tamar, with the Royal Albert Bridge, a steep medieval main street and a strong Plymouth commuter demand for housing, with a building stock that leans toward post-war estates at Latchbrook and Pillmere and medieval Fore Street terraces.
Saltash sits in East Cornwall — covering PL12 from Torpoint, Landrake, St Mellion outward.
- Conservation Area
- Coastal exposure zone
- ✓ 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 Saltash 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 Saltash 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 Saltash.
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
Replacement dwellings have specific volumetric tests — getting the ratio between existing footprint and proposed floor area right is the difference between approval and refusal.
04
Cornwall's housing policy increasingly favours principal residence and replacement dwelling schemes over open-market new builds in some parishes.
Local context
Why Saltash is its own job.
Conservation Area covers the historic Fore Street and waterfront. Tamar Bridge crossing and proximity to Plymouth shape edge-of-town residential growth significantly. For new build specifically, parts of Saltash sit within a designated Conservation Area, which means materials, fenestration and roof pitches all need to read sympathetically with the existing streetscape; coastal salt-laden air around Saltash drives detailing choices — fixings, render systems and timber treatments all need to be specified for exposure. So every Saltash job runs as a PL12-specific piece of work — local policy, local fabric, local builders. Most of our new build work in Saltash lands on post-war estates at Latchbrook and Pillmere, with detailing that has to nod to the wider Tideford 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
Local snags worth knowing before drawing a Saltash new build.
Watch #1
Conservation Area material and fenestration controls in central Saltash
Watch #2
Coastal exposure driving fixing, render and joinery spec
Saltash is the hub for these neighbourhoods
We run new builds across Saltash and the surrounding PL12 neighbourhoods — same studio, same site team.
- Hatt
PL12
- Landrake
PL12
- Tideford
PL12
- St Germans
PL12
- Pillaton
PL12
- Cargreen
PL12
- St Mellion
PL12
Local fabric
One PL12 studio, one new build job — start to finish.
Building stock
Across Saltash (PL12) we work on medieval Fore Street terraces, Georgian townhouses, Victorian villas, post-war estates at Latchbrook and Pillmere, modern Persimmon-style estates. Each stock type drives a different new build response — post-war estates at Latchbrook and Pillmere in particular needs careful detailing here.
Parish & policy
Saltash is its own town in East Cornwall, with planning history that's specific to the PL12 catchment.
Coverage
We cover PL12 from our studio, with regular new build jobs also running in Torpoint, Landrake, St Mellion. Most Saltash site visits get booked within the same week.
Do you work in Saltash regularly?
Yes — Saltash and the wider PL12 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 visitWho this is for
Saltash 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.
FAQs
Saltash New Builds — local questions answered.
- Is Passivhaus worth it in Saltash?
- 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 PL12, 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'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. In Saltash specifically, we'd start by checking the Conservation Area boundary before committing to a direction.
- How long does the whole project take?
- Allow six to twelve months for design and approvals, then ten to fourteen months on site for a typical four-bedroom new build. Complex sites or long planning routes extend that.
- 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 Saltash
Nearby places we cover
Local neighbourhoods in Saltash
A Saltash 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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