Looking for a professional house extension in Hornsey? Fixiz Ltd delivers high-quality house extensions across Hornsey (N8) and the wider Haringey area — fixed-price quotes, an in-house team, and full Building Regulations sign-off.
Why choose Fixiz for your House Extension in Hornsey?
Hornsey has a mix of period and modern homes, and a house extension is one of the most cost-effective ways to add space and value. Our Haringey projects are managed end to end by our own tradespeople, with a transparent fixed price after a free site survey.
Planning permission for a House Extension in Hornsey
Most projects in Hornsey fall under permitted development within the existing footprint, though Building Regulations approval is always required. We handle the full submission and sign-off.
What does a House Extension cost in Hornsey?
Your price is confirmed as a fixed quote after a free survey. See our full House Extension cost guide for 2026 ranges, or request a fixed quote for your Hornsey property.
Areas we cover near Hornsey
As well as Hornsey (N8), we carry out house extensions in Crouch End, Harringay and Muswell Hill and across Haringey and North London.
FAQ — House Extension in Hornsey
Do I need planning permission for a house extension in Hornsey?
Often not, as many Hornsey projects are permitted development, but Building Regulations approval is always required.
How long does a house extension take in Hornsey?
Most projects run from a few weeks to a few months depending on scope, with a clear programme in your quote.
Will it add value to my Hornsey home?
Yes — a well-built, certified house extension typically adds significant value to homes in Hornsey and Haringey.
Ready to start in Hornsey? Learn more or get a free quote from Fixiz today.