East Cornwall · PL11 · Cornwall Council East
St John new build — feasibility first, drawings second
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 St John, that work is shaped by the place itself — St John is a creekside settlement in the PL11 area, with waterside homes, wooded valleys and narrow-lane access shaping the brief, with a building stock that leans toward converted barns and detached houses.
St John sits in East Cornwall — just off the A38; covering PL11 from Torpoint, Millbrook, Antony outward.
- Rural / open-countryside policy area
- ✓Cornwall Council East sub-area regulars
- ✓Free first site visit, no obligation
- ✓Plain-English feasibility before any drawings
- ✓30+ years of Cornwall Council approvals
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Free St John feasibility call
Tell us about your new build. We reply within 1 working day — no obligation.
Who this is for
In St John 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.
Local watch-list
Common St John pitfalls we plan around.
Watch #1
Local Plan tests on isolated dwellings, plus lane access for plant and deliveries around St John
Watch #2
Party Wall notices and shallow roof voids typical of creekside cottages in the PL11 district
Local proof — Most St John homeowners come to us after a new build quote elsewhere felt vague on planning — we lead with feasibility instead.
Get a free feasibility viewFAQs
St John New Builds — local questions answered.
- We live in the house. Can a new build in St John be done while we stay put?
- Usually yes for single-storey and rear work, with a temporary kitchen or bathroom arrangement agreed before the start. Whole-house remodels and roof work in St John are often easier if you move out for a few weeks. We set that expectation at feasibility stage rather than halfway through.
- Can you handle a self-build for me?
- Yes — from feasibility to handover. Many of our clients start as 'self-builders' on paper, then hand the actual build to us once they realise how much project management it takes. In St John specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- 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.
- How much does a new build cost?
- Realistic budgets in Cornwall start around £2,800 per square metre for a good-quality build and rise quickly with bespoke joinery, large glazing, complex sites and high-spec finishes. We work to your number, not against it.
- 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.
Quick check
Want a straight answer on whether your St John project is worth pursuing?
Send a few details — we'll come back within 1 working day with a plain-English view on planning risk, likely cost band and whether it's a project we'd take on.
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Get a free feasibility view
For projects in St John and the PL11 area.
Scope
What we can draw, survey and build around St John
Clients in St John take different slices of this list, and that is deliberate.
Planning application drawings
Existing and proposed plans, elevations, site and block plans drawn to validation standard.
Construction and technical drawings
1:10 and 1:20 details for the parts of the job builders normally have to guess at.
Structural coordination
Calculations coordinated with the drawings so building control sees one consistent story.
Full design and build
One contract from first sketch to handover, with the same team on paper and on site.
Measured survey
An accurate record of what is actually there, which is where most avoidable cost is removed.
Page purpose
Drawings only, or drawings through to handover in St John?
Both routes are open on a PL11 project, and the honest answer depends on whether you already have a builder you trust. Plenty of St John clients take the drawings, tender them locally, then come back to us for the build if the numbers do not stack up.
- Route one: feasibility, planning and a tender-ready technical pack
- Route two: the same pack, then the build under one contract
- Either way the survey and feasibility work is identical, so the decision can wait
- Fees quoted per stage against the PL11 scope, not as one opaque figure
Keep reading
Follow the chain: survey, drawings, build
St John is covered from our Torpoint run. Being a smaller place, the local detail matters more than the headline policy: lane access, neighbour proximity and what the immediate street already looks like.
Who this is for
Why this page exists, and who it is for
- Design and build are offered from the same studio, which means the person answering your St John questions has seen the detail built.
- Drawings, planning and building regulations are all produced in-house, so a new build enquiry does not get passed between firms.
- Applications for St John are handled through Cornwall Council, with Liskeard the nearest planning office we deal with regularly.
Planning rules change and every site is different. For the final position on your address, check with Cornwall Council as the local planning authority or the Planning Portal.
Local context
Why St John is its own job.
Locally, creekside ecology, flood risk, trees and views across the water often matter as much as the building form itself. For new build 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. Which is why we scope St John projects parish-up, not template-down — the PL11 context shapes the design from day one. Whether the project is on converted barns in the centre or further out toward Torpoint, 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 St John.
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
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
AONB and Heritage Coast designations apply to large stretches of the county; isolated new builds outside settlement boundaries face a much higher policy bar.
Our process
How a St John 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 St John homeowners pick a local studio for new build.
Building stock
Across St John (PL11) we work on creekside cottages, detached houses, boat sheds, converted barns, waterside homes. Each stock type drives a different new build response — converted barns in particular needs careful detailing here.
Parish & policy
St John sits in the parish of St John, which matters for how parish-level consultation lands on a new build application.
Coverage
We cover PL11 from our studio, with regular new build jobs also running in Torpoint, Millbrook, Antony. Most St John site visits get booked within the same week.
What does a first St John consultation cost?
Nothing. We come to the property, walk the site, talk through what works on a PL11 plot and follow up with a written feasibility note inside a week — no obligation either way.
Request a free visitSt John is part of Torpoint
St John sits inside the Torpoint catchment — we cover both as one new build territory.
See New Builds in Torpoint →Other services in St John
Nearby places we cover
Every St John new build we work on is treated as a PL11 job in its own right — local fabric, local policy, local builders. detached houses in particular need a tailored structural answer.
One conversation — and a clearer St John brief We know how creekside cottages behave here.
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