Single and Double Storey Extensions
Permitted development limits, design principles, planning applications, costs, and the build sequence from foundations to completion.
Builders build. You decide. Discover the knowledge, confidence and tools to ensure your home renovation follows your vision — not your contractor's.
"We spent years planning our dream home. The moment the builders arrived, it stopped being ours."
We poured everything — our savings, our time, our vision — into a major home renovation. We had mood boards, architectural drawings, precise specifications. And then the building work began.
Within weeks, decisions were being made without us. Materials were substituted without consultation. Timelines shifted without notice. Costs crept beyond what was quoted. When we raised concerns, we were told "that's just how building works."
It isn't. And it shouldn't be.
This site exists because no homeowner should have to learn the hard way. You're spending life-changing sums of money on a place that matters more than anything else. You deserve to be in the room for every decision, informed about every option, and respected every step of the way.
Builders substitute materials, alter layouts and make design calls — without asking. Your carefully planned home becomes someone else's interpretation of it.
"While we're at it..." are the four most expensive words in renovation. Unplanned extras, inflated day rates, and undefined scope bleed your budget dry.
Builders who go quiet, fail to show up, or abandon a job mid-way. They move to more profitable projects, leaving yours unfinished and your home in chaos.
These aren't aspirational. These are the baseline standards every homeowner is entitled to — from day one to final snagging.
Nothing changes — no material, no method, no layout — without your explicit knowledge and approval.
Your quote is a contract. Any variation must be agreed in writing before work begins, not invoiced after.
You pay for completed work, not promises. Stage payments protect you and keep contractors accountable.
Every stage of your build can — and should — be inspected, either by you or an independent surveyor, before sign-off.
Retention money exists for a reason. The final payment is only released when every snag is resolved to your satisfaction.
A proper contract gives you exit rights if a builder fails to perform. Know your terms before you sign anything.
Every successful build follows the same foundations. Here's what to know — and do — at each stage.
Before a single builder is contacted, your vision must be fully documented. Vague briefs produce vague results — and expensive arguments.
The right builder is the difference between a dream result and a nightmare. Take three months if you need to — rushing this decision is the single costliest mistake homeowners make.
A verbal agreement is worthless. Every project — from a bathroom refit to a full extension — needs a written contract before a single tool is lifted.
Being hands-on doesn't mean micromanaging — it means being informed. Visit regularly, document everything, and never let more than a week pass without a formal update.
A renovation is the best possible time to future-proof your home. Running conduit, pre-wiring for EV charging or ASHP systems costs very little during a build — retrofitting it later costs a fortune.
Practical completion is not the end — it's the beginning of the snagging process. Don't release final payment until every defect is recorded and resolved.
The smartest homes aren't the most expensive — they're the best planned. Here's what to consider building into your renovation from day one.
ASHPs are now the government-backed replacement for gas boilers. Efficient when paired with underfloor heating or oversized radiators — plan your heating system around one from the start.
Systems like Octopus Home Mini, Homely, or Loxone learn your patterns and optimise heating, hot water and EV charging around cheap-rate tariffs automatically.
Pair rooftop solar with a home battery (Powerwall, Powerstore, GivEnergy) to store daytime generation for evening use. Combined with an EV charger and a smart tariff, you can dramatically cut energy costs.
Lutron Caséta, Philips Hue or KNX-based systems give you scene control, occupancy sensing and automatic adjustment. Install dimmer-compatible wiring and neutral wires at every switch position.
Even if you don't own an EV yet, install the infrastructure now. A dedicated 32A circuit to a garage or driveway parking position costs very little during a renovation — and makes your home significantly more saleable.
Mechanical Ventilation with Heat Recovery (MVHR) is standard in Passivhaus and increasingly common in well-insulated modern homes. It provides continuous fresh air while recovering up to 90% of heat from exhaust air.
Most homeowner nightmares could have been avoided. These are the patterns that consistently precede problems — recognise them before you commit.
"I've got a gap in my schedule next week but someone else is asking..." — legitimate builders don't use high-pressure sales tactics. Good tradespeople are busy because they're good, not because they're rushing you.
Asking for 50% or more before a single brick is laid is a major warning sign. Established businesses have trade accounts and can order materials on credit. Excessive upfront requests suggest poor financial management — or worse.
"We don't really do paperwork, we work on trust" is exactly backwards. A builder who resists a proper contract is protecting themselves, not you. Walk away.
Cash payments have no audit trail, no consumer protection, and are often a sign of VAT evasion. A legitimate contractor will accept bank transfer. If they insist on cash, consider what else they might be hiding.
Any builder worth hiring will be proud to show you finished work and connect you with previous clients. Vague answers, excuses about client privacy, or references who don't return calls are serious warning signs.
Once work has started, any changes to the original scope must be documented as a Variation Order with an agreed price before work proceeds. "I'll add it to the bill at the end" will cost you dearly.
"Trust me, I know what I'm doing" — respect for your expertise is fine. But dismissing your preferences, ignoring your brief, or overriding your decisions without consultation is not acceptable. You are the client. Always.
If a builder becomes unreachable, stops showing up consistently, or sends unqualified workers without explanation, your project is being deprioritised. This is when you need to invoke your contract — and quickly.
Practical, no-nonsense guides written for homeowners — not builders.
Permitted development limits, design principles, planning applications, costs, and the build sequence from foundations to completion.
Cold calling, cash-only demands, refusal to put things in writing: the warning signs that a contractor will take your money and disappear.
What you can build without a planning application, the size limits by property type, and the exceptions that catch homeowners out.
What to pre-wire before the walls go up: Cat6 networks, lighting circuits, EV charging, and CCTV — done once, done right.
The JCT contract is the gold standard for residential builds. Every clause explained, with the parts that actually protect you highlighted.
Whether an ASHP is right for your home, what the Boiler Upgrade Scheme pays, running costs compared to gas, and what installation involves.
Over 70 guides covering every stage of a home renovation project — from the first planning conversation to the final snagging inspection.
Browse All GuidesWe're building a community of homeowners who've been through it — and those who are about to. Get guides, checklists, contractor alerts and real stories delivered to your inbox.
No spam. No builder advertising. Just genuinely useful information for people spending serious money on their homes.