- Planning authority
- Gwynedd Council
- Postcodes
- LL55
- Noon sun, 21 March
- About 37°
- Shadow from a 5 m eaves line
- About 6.7 m
- Planning plan
- LDP
- County
- Gwynedd
The local picture in Caernarfon
Construction on a Caernarfon garden plot runs to a programme agreed once Gwynedd Council has issued permission and any pre-commencement conditions have been dealt with. Groundworks and foundations come first; the shell and roof follow, then glazing, internal trades and, last of all, the drive and planting.
Weather matters. Around 21 December the sun in Caernarfon climbs to only about 13° at midday, so winter days are short and wet ground slows the work. Where we can, we order the job so the house is weathertight before the worst months arrive.
The next steps, locally
Getting started in Caernarfon takes one step from you: send your address and a few photos of the garden, or call us. We check the title plan, access and planning constraints from our desk, then talk the plot through. If it looks viable we arrange a visit, discuss whether you want to sell, let or keep the new home, and set out the survey and design stage in writing before you commit.
Free plot appraisal
We check the title plan, access, constraints and planning policy from our desk, talk the plot through with you, and visit if it looks viable. There’s no cost and no obligation.
Survey and design
A measured survey records levels, boundaries, trees and neighbouring windows. We then design a layout and house that suit the plot, the street and your budget, and decide whether pre-application advice is worth seeking.
Planning and approvals
We submit the planning application and manage it to a decision, then deal with conditions, Building Regulations approval, the structural warranty, any build-over agreement and the new utility connections.
Written quote and build
Once design and survey are complete you get a written quote. The build runs in stages — access and groundworks, foundations, frame and roof, fit-out and external works — with inspections at each key point.
Worth checking early
- Building and selling a new home can change your tax position compared with selling only your house; take advice from a tax adviser first.
- Your own garden gets smaller and the new home will be visible from your house, so screening and separation matter for both homes.
- Planning can be refused, and money spent on surveys, design and the application isn’t recovered if it is — which is why we start with an appraisal.
Your questions, answered for Caernarfon
Do new homes in Caernarfon need a structural warranty?
If the house will ever be sold or mortgaged, in practice yes. Mortgage lenders usually expect a 10-year structural warranty on a new home, though some accept an architect’s or surveyor’s certificate, and a warranty provider inspects the work at stages during the build, so it has to be in place before construction starts. Building control approval is separate and also required; a buyer’s solicitor will ask for both.
How close can a new house be to my own in Caernarfon?
There’s no single national distance. Many councils use separation guides of around 21 metres between facing back windows and around 12 to 15 metres between a back window and a blank side wall, but the guidance used by Gwynedd Council decides. Window positions, ground levels, roof shape and screening all affect what is acceptable, which is why we survey before we design.
Can I build a house in my garden in Caernarfon and keep the land?
Yes. On our design and build route you remain the owner while we design the home, apply to Gwynedd Council for planning, deal with Building Regulations and build it. The finished house can be sold, let or kept for family. Whether your plot can take a house depends on access, space, neighbours and local policy, and the decision rests with the council.
Will I pay Community Infrastructure Levy on a new home in Caernarfon?
Only if Gwynedd Council has adopted a Community Infrastructure Levy charging schedule; not every council has. Where it applies, it can be charged on a new home of any size. A self-build exemption exists for people building a home to live in, but it must be claimed before work starts, so we check the position at design stage.
Other options in Caernarfon
- Corner and side plots
- Combine gardens with your neighbours
- Large rear gardens
- Planning permission for a garden plot
- Sell subject to planning
- Plot feasibility and design