North Cornwall · PL27 · Cornwall Council North
Extensions Polzeath: PL27 planning, North Cornwall fabric
Extensions are the bread and butter of Cornish homes — adding the kitchen-diner the original layout never had, the bedroom for a growing family, or the light and views the back of the house should always have had. Every Polzeath project we take on begins with reading the local context — Polzeath is the surfing village above one of north Cornwall's biggest sandy beaches, AONB-designated, with a holiday-let-heavy housing stock and increasing replacement-dwelling activity, with a building stock that leans toward modern coastal architect builds and 1960s bungalows above the beach.
Polzeath sits in North Cornwall — just off the A39; covering PL27 from Rock, Trebetherick, St Minver outward.
- Cornwall AONB
- Coastal exposure zone
- Rural / open-countryside policy area
- ✓Cornwall Council North sub-area regulars
- ✓Plain-English feasibility before any drawings
- ✓AONB experience built into the fee
- ✓One studio — design, planning and build under one roof
Free · No obligation
Free Polzeath feasibility call
Tell us about your extension. We reply within 1 working day — no obligation.
Who this is for
In Polzeath the extension 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 Polzeath pitfalls we plan around.
Watch #1
AONB landscape-impact testing on anything read in long views across North Cornwall
Watch #2
Exposure detailing on 1930s coastal villas — fixings, render systems and joinery specified for salt-laden air
Watch #3
Local Plan tests on isolated dwellings, plus lane access for plant and deliveries around Polzeath
Watch #4
Trussed roofs and shallow foundations in the later PL27 estates, which change the structural strategy
Local proof — Recent extension enquiries from Polzeath have clustered around modern coastal architect builds — we know the route through Cornwall Council on these.
Get a free feasibility viewFAQs
Polzeath Extensions — local questions answered.
- How long does the whole process take?
- Allow roughly three months for design and approvals, then twelve to twenty weeks on site for a typical single-storey extension. Wraparounds and two-storey add-ons take longer, mostly through approval and groundworks. In Polzeath specifically, we'd start by checking AONB landscape sensitivity before committing to a direction.
- Do I need planning permission for an extension?
- Often no — single-storey rear extensions, side extensions and modest two-storey additions can sit inside permitted development on a typical detached house. Conservation Areas, AONB and Article 4 zones remove some of those rights, so we always check the address first.
- We live in the house. Can a extension in Polzeath 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 Polzeath 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 the build as well as the design?
- Yes — that's the whole point of the studio. One contract, one point of contact, no finger-pointing between architect and builder when something needs a decision on site.
- What about the Party Wall Act?
- If you share a wall with a neighbour or build close to a boundary, the Act applies. We flag it early, recommend a surveyor and keep the programme aligned with the notice period.
- How much does an extension cost in Cornwall?
- Build costs in Cornwall typically run from around £2,200 to £3,200 per square metre for a good-quality single-storey extension, more for kitchen-grade fit-out or complex glazing. We give a realistic budget before drawings start, not after.
Quick check
Want a straight answer on whether your Polzeath 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.
Free · No obligation
Get a free feasibility view
For projects in Polzeath and the PL27 area.
Page purpose
Drawings only, or drawings through to handover in Polzeath?
Both routes are open on a PL27 project, and the honest answer depends on whether you already have a builder you trust. Plenty of Polzeath 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 PL27 scope, not as one opaque figure
Scope
Where our work starts and stops on a PL27 project
These stages can be bought separately. Most PL27 projects use three of them.
Construction and technical drawings
1:10 and 1:20 details for the parts of the job builders normally have to guess at.
Heritage and design statements
Written justification where designation makes the design case as important as the drawing.
Planning application drawings
Existing and proposed plans, elevations, site and block plans drawn to validation standard.
Full design and build
One contract from first sketch to handover, with the same team on paper and on site.
Building regulation drawings
Full Plans sets with sections, construction notes and coordinated structural information.
Who this is for
Our footing in North Cornwall
- Designated-area work is routine here, so heritage and landscape statements are produced alongside the drawings rather than outsourced.
- Drawings, planning and building regulations are all produced in-house, so a extension enquiry does not get passed between firms.
- Design and build are offered from the same studio, which means the person answering your Polzeath questions has seen the detail built.
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.
Keep reading
Related PL27 pages
Polzeath works as a hub for us: the same extension team covers Rock, Trebetherick and the surrounding PL27 villages, so a site visit here often takes in more than one address.
Local context
Why Polzeath is its own job.
AONB and Heritage Coast designations across the village; cliff and dune-edge sites are tightly controlled. Local plan policy on second homes and holiday lets is being progressively tightened. That sets the scene before any design work begins. For extension specifically, 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 Polzeath 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. It's the kind of detail that decides whether a Polzeath application gets approved at eight weeks or stalls in committee. The modern coastal architect builds that dominate Polzeath (and continue out toward Rock) set the tone for any extension scheme here.
Planning note
Most extensions in Cornwall are either permitted development or a straightforward householder application — but Conservation Area and AONB sites need a more careful design conversation upfront.
What we focus on
Extensions considerations specific to Polzeath.
01
Extensions over a certain proportion of the original house trigger full Part L upgrade obligations to the existing building — worth knowing before brief is set.
02
Wind and sea-spray exposure can drive material choices on west-facing extensions; we detail accordingly.
03
Permitted development for rear extensions runs to four metres on a detached house, three on a semi or terrace — but Article 4 areas remove this in some parishes.
04
Cornish granite and slate-hung walls react differently to new openings than modern brickwork — lintel choice and structural sequencing matter.
Our process
How a Polzeath extension project runs.
Step 1
Brief
We meet on site, talk through how you live now and what's missing from the current layout.
Step 2
Design
Two or three sketch directions with rough budgets, then refinement of the chosen route.
Step 3
Approvals
Planning or Cert of Lawfulness, then a full building regs package.
Step 4
Build
Either through your own builder with our drawings, or as a full build by our team.
Step 5
Handover
Snag, certify, hand over the keys to your new space.
Typical single-storey rear extensions run twelve to twenty weeks on site; two-storey and wraparound projects sixteen to thirty weeks.
Local fabric
Why Polzeath homeowners pick a local studio for extension.
Building stock
Across Polzeath (PL27) we work on 1930s coastal villas, 1960s bungalows above the beach, modern coastal architect builds, high-end replacement dwellings. Each stock type drives a different extension response — modern coastal architect builds in particular needs careful detailing here.
Parish & policy
Polzeath sits in the parish of St Minver, which matters for how parish-level consultation lands on a extension application.
Coverage
We cover PL27 from our studio, with regular extension jobs also running in Rock, Trebetherick, St Minver. Most Polzeath site visits get booked within the same week.
How quickly can you visit a Polzeath site?
Usually within the same week. Polzeath (PL27) is on our regular North Cornwall run, alongside Rock, Trebetherick, St Minver. First visits are free and you'll get an honest feasibility view inside seven days.
Request a free visitPolzeath is the hub for these neighbourhoods
We run extensions across Polzeath and the surrounding PL27 neighbourhoods — same studio, same site team.
- Rock
PL27
- Trebetherick
PL27
Other services in Polzeath
Nearby places we cover
Local neighbourhoods in Polzeath
A extension in Polzeath stands or falls on how well it reads the street — we treat that as the design brief, not an afterthought. Lane access and rural policy tests shape what is realistic on an isolated plot.
Talk to a Cornwall studio that knows Polzeath Extensions enquiries here usually start with a walk round.
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