
Professional House Extension Solutions for Ingatestone Residents
Planning a house extension in Ingatestone? Our expert architectural team specializes in creating beautiful, functional extensions that enhance your home's value and living space. Located within the Enfield catchment area, Ingatestone offers excellent opportunities for residential development, and our local expertise ensures your project benefits from professional design solutions tailored to the area's unique characteristics.

A recent extension project in the Brentwood area
Our Ingatestone team brings extensive local knowledge and professional expertise to every project. We understand Ingatestone's unique architectural character, planning policies, and building regulations, ensuring your project progresses smoothly through the planning and building control processes. With years of experience working across the Enfield area, our architects have developed strong relationships with local planning authorities, building control officers, and other key stakeholders.
Our Ingatestone team ensures your house extension project complies with all current planning policies and building regulations. We understand Enfield Council's specific requirements and can advise on the most appropriate approach for your project. From permitted development rights to full planning applications, we provide comprehensive support to ensure regulatory compliance while maximizing your development potential.
Ingatestone has a diverse housing stock and we have experience extending all property types in the area. Our architects adapt designs to suit the character and structure of each home, whether that means matching original brickwork on a period property or creating a contemporary contrast on a more modern home.
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Covering CM4 & surrounding postcodes
Guide prices for house extensions in the Brentwood area. Every project is different — we provide a detailed, itemised quote after a free site visit.
| Extension Type | Typical Cost |
|---|---|
| Single Storey Rear Extension | £30k – £60k |
| Double Storey Extension | £47k – £102k |
| Side Return Extension | £21k – £43k |
| Wrap-Around Extension | £51k – £111k |
| Loft Conversion (Dormer) | £34k – £55k |
| Kitchen Extension | £26k – £51k |
| Basement Conversion | £68k – £170k |
| Garage Conversion | £13k – £26k |
Prices are guide figures for 2026 based on projects in the Essex area. PD = Permitted Development (no formal planning application needed in most cases). Actual costs depend on specification, site conditions, and scope.

Professional single storey extension design and planning for ground floor expansions
Typical: 6-12 weeks
Two-storey home extension design maximizing space and value
Typical: 8-16 weeks
Garden-facing extensions creating seamless indoor-outdoor living
Typical: 6-10 weeks
Narrow extensions utilizing side garden space efficiently
Typical: 6-12 weeks
Specialized kitchen and dining space extensions for modern living
Typical: 8-14 weeks
Converting attic space into valuable living areas
Typical: 6-10 weeks
Underground extensions creating additional living space
Typical: 12-20 weeks
Expert guidance through planning applications and permitted development
Typical: 8-16 weeks
Comprehensive extensions combining rear and side elements for maximum space
Typical: 10-18 weeks
Comprehensive whole-house renovation and modernization services
Typical: 12-24 weeks
Expert structural engineering services including underpinning and load-bearing work
Typical: 8-16 weeks
Converting garages into functional living spaces for bedrooms, offices, and studios
Typical: 4-8 weeksFrom the first phone call to moving into your new space — here is what to expect at every stage.
We visit your Ingatestone property, discuss your vision, assess feasibility, and give you honest guidance on costs and planning routes.
Our architects create detailed plans, 3D visuals, and construction drawings tailored to your Ingatestone home and how you want to live in it.
We prepare and submit your planning application, liaise with the local authority covering Ingatestone, and handle building regulations documentation.
Our vetted builders bring the design to life. We oversee the build, conduct regular site visits, and manage quality at every stage.
Final inspections, building control sign-off, snagging checks, and handover — your new Ingatestone space is ready to enjoy.
Our house extension services in Ingatestone cover the full spectrum of design and planning needs. We specialize in single-storey extensions, double-storey extensions, rear extensions, side extensions, kitchen extensions, loft conversions, and basement extensions. Our designs respect local architectural character while incorporating modern living requirements and energy-efficient solutions.
Our Ingatestone planning permission services include pre-application advice, full planning applications, and advice on permitted development rights. We work closely with Enfield Council to ensure your application meets all requirements and has the best chance of approval. Our goal is to secure planning permission efficiently while ensuring your project meets all regulatory requirements.

Extension completed in the Brentwood area
Building control compliance is essential for all construction projects in Ingatestone. Our team provides comprehensive building control drawings and applications, ensuring your project meets all structural, fire safety, and accessibility requirements. We work closely with building control officers to ensure smooth approval processes and compliance with current building regulations.
Our Ingatestone clients benefit from our extensive local knowledge, established relationships with planning authorities and contractors, and commitment to delivering exceptional results. We take pride in our ability to transform client visions into reality while respecting local character and meeting regulatory requirements. We offer competitive rates, transparent pricing, and flexible service packages tailored to your specific needs.

Everything you need to know about loft conversions in London in 2026. Dormer, hip-to-gable, mansard and L-shaped options explained with costs, timelines and planning permission guidance.

Plan your dream kitchen extension in London. Explore side-return, rear and wrap-around options with 2026 costs, planning tips and design inspiration for every budget.

Updated 2026 price guide for house extensions across London. Costs for single storey, double storey, loft conversions and more — broken down by area and project type.
Transform your Ingatestone home with our professional extension services. Contact us today for a free consultation and discover how we can help you create the perfect extension for your property. Our experienced team combines local knowledge with innovative design to deliver exceptional results that enhance your home's value and living space.
Discover our comprehensive range of house extension solutions in London and surrounding areas
Professional single storey extension design and planning for ground floor expansions
Two-storey home extension design maximizing space and value
Garden-facing extensions creating seamless indoor-outdoor living
Narrow extensions utilizing side garden space efficiently
Specialized kitchen and dining space extensions for modern living
Converting attic space into valuable living areas
Call now to speak with our expert team. Get instant responses and professional guidance for your extension project.