West Cornwall · TR26 · Cornwall Council West
Eco new builds in St Ives — sustainable spec that stacks up
An eco new-build in St Ives doesn't have to be Passivhaus-certified to make sense. Timber-frame construction, wood-fibre insulation, triple glazing and a properly sized air-source heat pump get you 85–90% of Passivhaus performance for a build premium under 6%. On TR26 plots, this is the pragmatic middle ground. 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. What works on a TR26 plot rarely works elsewhere — St Ives is a designated Area of Outstanding Natural Beauty town with a tightly packed historic harbour, the Tate gallery and some of the steepest streets in Cornwall, with a building stock that leans toward fishermen's cottages and modern hillside homes above the town.
St Ives sits in West Cornwall — just off the A3074; with Truro the closest city; 1 miles from Carbis Bay, 3 miles from Hayle.
- Conservation Area
- Cornwall AONB
- Coastal exposure zone
- ✓ Timber-frame with wood-fibre insulation
- ✓ ASHP + underfloor + PV as standard
- ✓ Under 6% cost premium
- ✓ Full building regs sign-off included
Who this is for
St Ives 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
Local snags worth knowing before drawing a St Ives new build.
Watch #1
Principal Residence policy ruling out new dwellings sold as second homes
Watch #2
Granite-walled cottages where loft conversion headroom is borderline
Watch #3
Stepped access on Downalong streets limiting plant and crane reach
Watch #4
Slate roof pitches that complicate dormer geometry
Local proof — Most St Ives new build clients we work with are second-time builders — they've seen the templated approach fail once already.
Get a free feasibility viewFAQs
St Ives New Builds — local questions answered.
- Is timber-frame or block best for eco in St Ives?
- Timber-frame nearly every time — lower embodied carbon, faster on-site programme, better air-tightness detailing. The exception is exposed coastal plots where masonry may still win on maintenance.
- What eco heating works in St Ives?
- Air-source heat pump with underfloor heating downstairs, radiators upstairs. Ground-source only makes sense on plots with borehole space. PV on the roof pays back in 9–12 years at current rates.
- Does eco spec add much cost?
- £3,200–£4,200/m² for sensible eco spec vs £3,000–£4,000 standard. Under 6% premium for major improvements in comfort and running cost.
- 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 Ives specifically, we'd start by checking the Conservation Area boundary before committing to a direction.
- 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.
- 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.
Local context
Why St Ives is its own job.
St Ives operates a Neighbourhood Plan with a principal residence policy on most new dwellings — second homes and holiday lets face strong policy resistance. The Conservation Area covers Downalong, the harbour and most of the town centre, where granite, slate and lime-render detailing is non-negotiable. That sets the scene before any design work begins. For new build specifically, parts of St Ives 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 St Ives drives detailing choices — fixings, render systems and timber treatments all need to be specified for exposure. It's the kind of detail that decides whether a St Ives application gets approved at eight weeks or stalls in committee. The fishermen's cottages that dominate St Ives (and continue out toward Carbis Bay) set the tone for any new build scheme here.
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.
Recent work nearby
Carbis Bay clifftop rebuild we ran last year leaned on a granite plinth + standing-seam zinc roof.
See more recent West Cornwall work →What we focus on
New Builds considerations specific to St Ives.
01
Replacement dwellings have specific volumetric tests — getting the ratio between existing footprint and proposed floor area right is the difference between approval and refusal.
02
Cornwall's housing policy increasingly favours principal residence and replacement dwelling schemes over open-market new builds in some parishes.
03
Off-grid services — package treatment plants, borehole supply, off-mains gas — are common on rural Cornish plots and need designing, not assuming.
04
Self-build CIL exemption requires the right documentation in the right order; missing a step costs five-figure sums.
Our process
How a St Ives 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 Ives homeowners pick a local studio for new build.
Building stock
Across St Ives (TR26) we work on fishermen's cottages, granite terraces, Victorian villas, Edwardian guesthouses, modern hillside homes above the town. Each stock type drives a different new build response — fishermen's cottages in particular needs careful detailing here.
Parish & policy
St Ives sits in the parish of St Ives, which matters for how parish-level consultation lands on a new build application.
Coverage
We cover TR26 from our studio, with regular new build jobs also running in Carbis Bay, Hayle, Lelant. Most St Ives site visits get booked within the same week.
How quickly can you visit a St Ives site?
Usually within the same week. St Ives (TR26) is on our regular West Cornwall run, alongside Carbis Bay, Hayle, Lelant. First visits are free and you'll get an honest feasibility view inside seven days.
Request a free visitSt Ives is the hub for these neighbourhoods
We run new builds across St Ives and the surrounding TR26 neighbourhoods — same studio, same site team.
- Carbis Bay
TR26
- Nancledra
TR20
Other services in St Ives
Nearby places we cover
Local neighbourhoods in St Ives
Not every St Ives eco home needs full Passivhaus certification — sensibly specified timber-frame with the right envelope gets most of the benefit for a fraction of the premium.
Design an eco new-build on your St Ives plot
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