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Extension Design Insights & Guides

Expert advice on home extensions, planning permission, building regulations, and extension design packages for Hampshire homes.

All Articles (47)
Design Ideas (10)
Planning & Regulations (1)
Costs & Budgeting (3)
Location Guides (1)
Planning Guidance (4)
Building Regulations (3)
Design Advice (4)
Planning Advice (3)
Planning (2)
News (5)
Design & Style (2)
Budgeting (2)
Planning Permission (3)
Extension Designer Packages (1)
Extension Costs (3)
Open-Plan Kitchen Extension Design Ideas for Hampshire Homes - Hampshire Build extension design blog article
Design Ideas

Open-Plan Kitchen Extension Design Ideas for Hampshire Homes

The open-plan kitchen-diner is the most popular extension type in Hampshire. Here's how to design one that works for your home — light, flow, structure and planning.

Jun 2026 5 min read
Garage Conversion Planning in Hampshire: Do You Need Permission? - Hampshire Build extension design blog article
Planning & Regulations

Garage Conversion Planning in Hampshire: Do You Need Permission?

Most Hampshire garage conversions don't need planning permission — but there are important exceptions. Here's what to check before you start your project.

Jun 2026 5 min read
Hampshire Loft Conversions 2026: Types, Costs and the Planning Route - Hampshire Build extension design blog article
Design Ideas

Hampshire Loft Conversions 2026: Types, Costs and the Planning Route

A complete guide to loft conversions in Hampshire — dormer, Velux and hip-to-gable options, what they cost, when you need planning permission, and what's changed in 2026.

Jun 2026 6 min read
Extension Costs in Winchester 2026: A Realistic Budget Guide - Hampshire Build extension design blog article
Costs & Budgeting

Extension Costs in Winchester 2026: A Realistic Budget Guide

How much does a house extension really cost in Winchester? We break down real build costs by type, the design fees, planning fees and what affects total project cost.

Jun 2026 6 min read
House Extensions in Southampton: A Local Guide for 2026 - Hampshire Build extension design blog article
Location Guides

House Extensions in Southampton: A Local Guide for 2026

Everything Southampton homeowners need to know before extending — from Victorian terrace challenges to Southampton City Council's planning rules and build costs in 2026.

Jun 2026 6 min read
Planning Permission for Extensions: What Hampshire Councils Look For in 2026 - Hampshire Build extension design blog article
Planning Guidance

Planning Permission for Extensions: What Hampshire Councils Look For in 2026

Every local planning authority in Hampshire has its own design preferences and red lines. Understanding what Winchester, Basingstoke, Test Valley and the rest actually want to see on a planning application can be the difference between approval and refusal.

Jun 2026 7 min read
What Is a Building Regulations Drawing Package — and Do You Need One? - Hampshire Build extension design blog article
Building Regulations

What Is a Building Regulations Drawing Package — and Do You Need One?

Most homeowners know they need planning permission before building an extension. Far fewer understand that Building Regulations approval is a separate legal requirement — and that a full technical drawing package is what makes it possible.

Jun 2026 7 min read
Side Return Extension vs Rear Extension: Which Is Right for Your Home? - Hampshire Build extension design blog article
Design Advice

Side Return Extension vs Rear Extension: Which Is Right for Your Home?

Choosing between a side return extension and a rear extension isn't just a matter of space — it depends on your property type, planning situation, budget and the result you want to achieve. Here's how to make the right call.

Jun 2026 7 min read
How Much Does a Loft Conversion Cost in Hampshire? (2026 Prices & Guide) - Hampshire Build extension design blog article
Costs & Budgeting

How Much Does a Loft Conversion Cost in Hampshire? (2026 Prices & Guide)

Loft conversions remain one of the most cost-effective ways to add space in Hampshire. But costs vary significantly depending on conversion type, size and finish. Here's what you can expect to pay in 2026 — and what drives the price.

Jun 2026 8 min read
How Long Does a Garage Conversion Take? Complete Timeline & Stages - Hampshire Build extension design blog article
Planning Advice

How Long Does a Garage Conversion Take? Complete Timeline & Stages

A garage conversion is one of the quickest ways to add a bedroom, home office or living room to your home — but the timeline from first conversation to usable room involves more stages than most homeowners expect. Here's the complete picture.

Jun 2026 7 min read
What Can You Build Without Planning Permission in Hampshire? (2026 Guide) - Hampshire Build extension design blog article
Planning Guidance

What Can You Build Without Planning Permission in Hampshire? (2026 Guide)

Millions of UK homeowners extend and improve their homes every year without needing a planning application. Understanding what's covered by Permitted Development rights — and what isn't — can save you time and money before a single drawing is produced.

Jun 2026 9 min read
Hampshire Build Premium Package: Full Design, Vetted Contractors & Fixed-Fee Peace of Mind - Hampshire Build extension design blog article
Design Advice

Hampshire Build Premium Package: Full Design, Vetted Contractors & Fixed-Fee Peace of Mind

The Premium Package at £2,950+VAT takes you from planning drawings all the way through contractor tendering and proposal comparison — giving you everything you need to get your extension built with confidence.

May 2026 8 min read
Why Choosing a Vetted Contractor is the Most Important Decision You'll Make on Your Extension - Hampshire Build extension design blog article
Planning Advice

Why Choosing a Vetted Contractor is the Most Important Decision You'll Make on Your Extension

The number one thing that goes wrong on extension projects isn't the design — it's the contractor. Here's what vetting actually means, what your building contract should include, and why Hampshire Build built a vetted panel.

May 2026 7 min read
How Much Does a House Extension Cost in Hampshire? (2026 Guide) - Hampshire Build extension design blog article
Costs & Budgeting

How Much Does a House Extension Cost in Hampshire? (2026 Guide)

Wondering what a house extension costs in Hampshire in 2026? We break down real prices by extension type, size and finish — with no hidden surprises.

Apr 2026 8 min read
House Extensions Hampshire: Complete Guide 2026 - Hampshire Build extension design blog article
Planning

House Extensions Hampshire: Complete Guide 2026

Everything Hampshire homeowners need to know about extending their home in 2026 — planning permission, costs, timelines, types of extension, and how to choose the right designer.

Mar 2026 7 min read
Do You Need an Architect for a House Extension in Hampshire? - Hampshire Build extension design blog article
Planning

Do You Need an Architect for a House Extension in Hampshire?

Most Hampshire homeowners assume they need a fully qualified architect to extend their home. The reality is more nuanced — and understanding the difference could save you thousands.

Mar 2026 6 min read
Hampshire Build Achieves 98% Planning Approval Rate: A Record Q1 2026 - Hampshire Build extension design blog article
News

Hampshire Build Achieves 98% Planning Approval Rate: A Record Q1 2026

We're proud to announce that Hampshire Build has achieved a 98% planning approval rate across all submitted applications in Q1 2026 — continuing our track record of delivering results for Hampshire homeowners.

Mar 2026 3 min read
Hampshire Build Now Serving West Sussex and Berkshire: New Service Areas for 2026 - Hampshire Build extension design blog article
News

Hampshire Build Now Serving West Sussex and Berkshire: New Service Areas for 2026

Following strong demand from homeowners outside Hampshire, we're pleased to confirm that Hampshire Build now formally covers West Sussex and Berkshire — bringing our fixed-fee extension design packages to even more families across the South East.

Mar 2026 3 min read
How to Pass Building Regulations First Time: Hampshire Extension Checklist 2026 - Hampshire Build extension design blog article
Building Regulations

How to Pass Building Regulations First Time: Hampshire Extension Checklist 2026

Building regulations approval is a legal requirement for almost all home extensions — but many homeowners don't fully understand what's involved until they're already on site. This practical checklist sets out what inspectors look for and how to avoid the most common failures.

Feb 2026 9 min read
Flat Roof vs Pitched Roof Extension: Which is Right for Your Hampshire Home? - Hampshire Build extension design blog article
Design & Style

Flat Roof vs Pitched Roof Extension: Which is Right for Your Hampshire Home?

Choosing between a flat roof and a pitched roof for your extension isn't just an aesthetic decision — it affects planning permission, build cost, maintenance, and how much natural light you can bring in. Here's everything you need to know.

Mar 2026 8 min read
Garage Conversions in Hampshire 2026: Planning, Design & Cost Guide - Hampshire Build extension design blog article
Design Ideas

Garage Conversions in Hampshire 2026: Planning, Design & Cost Guide

Converting an integral or attached garage is one of the most cost-effective ways to add a room to your Hampshire home. With no extension to build and planning permission rarely required, garage conversions offer exceptional value — but the details matter.

Mar 2026 10 min read
Crittall Style Doors: The Ultimate Guide for Your Home Extension - Hampshire Build extension design blog article
Design & Style

Crittall Style Doors: The Ultimate Guide for Your Home Extension

Crittall style doors have become one of the most sought-after features in modern home extensions. Discover why these iconic steel-framed glazing systems add both character and value to your property.

Jan 2026 8 min read
Permitted Development or Planning Permission: Which Route is Right for Your Extension? - Hampshire Build extension design blog article
Planning Guidance

Permitted Development or Planning Permission: Which Route is Right for Your Extension?

Understanding the key differences between Permitted Development rights and full Planning Permission can save you time, money and frustration. Here's what every homeowner needs to know before starting their extension project.

Jan 2026 8 min read
Hampshire Build Expands into Hertfordshire for 2026 - Hampshire Build extension design blog article
News

Hampshire Build Expands into Hertfordshire for 2026

We're excited to announce our expansion into Hertfordshire, bringing our award-winning extension design services to St Albans, Watford, Stevenage and towns across the county.

Jan 2026 5 min read
New Year, New Space: Start Your 2026 Home Extension Journey in Hampshire - Hampshire Build extension design blog article
News

New Year, New Space: Start Your 2026 Home Extension Journey in Hampshire

Make 2026 the year you finally create the home you've always dreamed of. Discover why January is the perfect time to start planning your Hampshire extension project.

Jan 2026 4 min read
Meet Hampshire Build at the Homebuilding & Renovating Show 2026 - Hampshire Build extension design blog article
News

Meet Hampshire Build at the Homebuilding & Renovating Show 2026

We're excited to announce that Hampshire Build will be exhibiting at the Homebuilding & Renovating Show. Come and meet our team to discuss your extension project in person.

Jan 2026 3 min read
Modern Extension Design Trends Transforming Hampshire Homes in 2026 - Hampshire Build extension design blog article
Design Ideas

Modern Extension Design Trends Transforming Hampshire Homes in 2026

Discover the latest extension design trends for 2026. From contemporary glazing to sustainable materials, see how Hampshire homeowners are creating stunning living spaces.

Jan 2026 5 min read
How Much Does Extension Design Cost in Hampshire? 2025 Pricing Guide - Hampshire Build extension design blog article
Budgeting

How Much Does Extension Design Cost in Hampshire? 2025 Pricing Guide

Complete breakdown of extension design costs in Hampshire 2025. Compare extension designer fees, understand what you pay for, and discover how to save thousands on your Winchester, Basingstoke, or Southampton extension project.

Jan 2026 10 min read
Single-Storey Extensions Hampshire: Complete 2025 Design Guide - Hampshire Build extension design blog article
Design Ideas

Single-Storey Extensions Hampshire: Complete 2025 Design Guide

Everything Hampshire homeowners need to know about single-storey extensions in 2025. Design ideas, costs, planning permission, and expert tips for Winchester, Basingstoke, and Southampton projects.

Jan 2026 12 min read
How to Choose an Extension Designer in Winchester & Hampshire: 2025 Expert Guide - Hampshire Build extension design blog article
Planning Permission

How to Choose an Extension Designer in Winchester & Hampshire: 2025 Expert Guide

Complete guide to choosing the right extension designer for your Winchester, Basingstoke, or Southampton home extension. Compare qualifications, experience, pricing models, and what to look for in Hampshire extension design services.

Jan 2026 14 min read
Planning Permission for Home Extensions: What You Need to Know in 2025 - Hampshire Build extension design blog article
Planning Permission

Planning Permission for Home Extensions: What You Need to Know in 2025

Understanding the planning permission process for home extensions in Hampshire 2025. Complete guide covering when you need planning permission, how to apply, new regulations, and tips for approval success across Winchester, Basingstoke, and Southampton.

Jan 2026 9 min read
Kitchen Extensions: 12 Design Ideas for Hampshire Homes in 2025 - Hampshire Build extension design blog article
Design Ideas

Kitchen Extensions: 12 Design Ideas for Hampshire Homes in 2025

Discover inspiring kitchen extension designs perfect for Hampshire homes in 2025. From open-plan kitchen-diners to side returns and orangery-style extensions across Winchester, Basingstoke, and Southampton. Modern designs blending with traditional architecture.

Jan 2026 11 min read
Building Regulations for Hampshire Extensions | Hampshire Build - Hampshire Build extension design blog article
Building Regulations

Building Regulations for Hampshire Extensions | Hampshire Build

How building regulations work for home extensions in Hampshire. Hampshire Build produces lean, accurate technical drawings calibrated for Building Notice — everything your builder needs, at outstanding value.

Jan 2026 12 min read
Permitted Development Rights: Extending Without Planning Permission in Hampshire 2025 - Hampshire Build extension design blog article
Planning Permission

Permitted Development Rights: Extending Without Planning Permission in Hampshire 2025

Complete guide to permitted development rights for Hampshire home extensions. Extend without planning permission - save £528 in fees and 8-12 weeks. Understand limits, restrictions, and Prior Approval process for Winchester, Basingstoke, and Southampton homes.

Jan 2026 10 min read
Two-Storey Extensions: Maximising Space in Hampshire Homes 2025 - Hampshire Build extension design blog article
Design Ideas

Two-Storey Extensions: Maximising Space in Hampshire Homes 2025

Complete guide to two-storey extensions for Hampshire homes in 2025. Add bedrooms + kitchen simultaneously, preserve garden space, £1,600-£2,500/m² costs. Winchester, Basingstoke, Southampton design ideas, planning requirements, and value-for-money analysis.

Jan 2026 11 min read
Extension Costs 2025: Complete Budgeting Guide for Hampshire Home Projects - Hampshire Build extension design blog article
Budgeting

Extension Costs 2025: Complete Budgeting Guide for Hampshire Home Projects

Complete breakdown of home extension costs in Hampshire 2025. Detailed pricing for design fees (£1,950-£2,950), construction costs (£1,800-£3,500/m²), planning fees, hidden costs, and real Winchester, Basingstoke, Southampton project examples.

Jan 2026 13 min read
Hampshire Extension Designer Packages: Pre-Build Package vs Premium Package vs Premium Plus Package (2026 Guide) - Hampshire Build extension design blog article
Design Advice

Hampshire Extension Designer Packages: Pre-Build Package vs Premium Package vs Premium Plus Package (2026 Guide)

Compare Hampshire Build's three fixed-fee extension designer packages — Pre-Build Package (£1,950), Premium Package (£2,950), and Premium Plus Package (£4,950) + VAT. Find out which is right for your project.

May 2026 6 min read
Why Hampshire Families Save £2,000+ With Our Fixed-Fee Extension Designer Packages - Hampshire Build extension design blog article
Extension Designer Packages

Why Hampshire Families Save £2,000+ With Our Fixed-Fee Extension Designer Packages

Discover how Hampshire Build's transparent extension designer pricing saves families thousands compared to traditional hourly-rate designers. Real cost comparisons and client testimonials.

Dec 2025 6 min read
Pre-Build Package £1,950+VAT: Complete Guide for Hampshire Extensions - Hampshire Build extension design blog article
Design Advice

Pre-Build Package £1,950+VAT: Complete Guide for Hampshire Extensions

Everything you need to know about Hampshire Build's most popular fixed-fee package. Includes planning drawings, building regulations, and structural calculations — everything your builder needs.

May 2026 5 min read
Extension Cost Calculator: 2025 Hampshire Build Prices & Estimates - Hampshire Build extension design blog article
Extension Costs

Extension Cost Calculator: 2025 Hampshire Build Prices & Estimates

Use our free extension cost calculator to get instant estimates for your Hampshire extension. Calculate build costs from £1,800-£3,200/m², design fees, and total project costs. Updated for 2025 prices.

Jan 2026 8 min read
Kitchen Extension Cost Hampshire 2025: Complete Budget Guide - Hampshire Build extension design blog article
Extension Costs

Kitchen Extension Cost Hampshire 2025: Complete Budget Guide

How much does a kitchen extension cost in Hampshire? Complete 2025 pricing guide covering build costs (£45,000-£90,000), design fees, and kitchen fitting. Use our free calculator for your exact estimate.

Jan 2026 7 min read
Two-Storey Extension Cost Hampshire 2025: Complete Budget Breakdown - Hampshire Build extension design blog article
Extension Costs

Two-Storey Extension Cost Hampshire 2025: Complete Budget Breakdown

How much does a two-storey extension cost? Hampshire 2025 pricing: £70,000-£150,000 for typical projects. Build costs £1,600-£2,800/m², structural requirements, and design fees explained. Get your free estimate.

Jan 2026 8 min read
Open Plan Kitchen Extension Ideas: How Hampshire Families Are Transforming Their Homes - Hampshire Build extension design blog article
Design Ideas

Open Plan Kitchen Extension Ideas: How Hampshire Families Are Transforming Their Homes

An open plan kitchen extension is the most popular way to add space and value to your Hampshire home. Discover layout ideas, costs, and planning tips from our extensive experience designing family extensions.

Feb 2026 9 min read
Home Extensions in St Albans: Navigating Conservation Areas, Planning & Design - Hampshire Build extension design blog article
Planning Guidance

Home Extensions in St Albans: Navigating Conservation Areas, Planning & Design

St Albans has 28 conservation areas and strict planning requirements. Our complete guide helps homeowners understand what's possible, what it costs, and how to get planning approval for your extension project.

Feb 2026 10 min read
Loft Conversions in Hampshire: The Complete 2026 Guide to Adding a Bedroom Without Moving - Hampshire Build extension design blog article
Design Ideas

Loft Conversions in Hampshire: The Complete 2026 Guide to Adding a Bedroom Without Moving

A loft conversion is the most cost-effective way to add a bedroom and bathroom to your Hampshire home. Our complete guide covers types, costs, planning rules and everything you need to know before converting your loft.

Feb 2026 11 min read
Loft Conversion Design in Hampshire: What You Need Before You Appoint a Builder - Hampshire Build extension design blog article
Planning Advice

Loft Conversion Design in Hampshire: What You Need Before You Appoint a Builder

Before you ask a builder to price your loft conversion, you need drawings. This guide explains what architectural drawings a loft conversion requires, what the planning process involves, and how Hampshire Build's fixed-fee service works.

Mar 2026 9 min read
Dormer vs Velux vs Hip-to-Gable: Which Loft Conversion Is Right for Your Hampshire Home? - Hampshire Build extension design blog article
Design Ideas

Dormer vs Velux vs Hip-to-Gable: Which Loft Conversion Is Right for Your Hampshire Home?

Three main loft conversion types, three different costs, three different planning outcomes. This guide explains which type suits your Hampshire property and what each one involves.

Mar 2026 10 min read

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