LCCL Construction

Call Directions Website

LCCL Construction Loft conversions & house extensions, designed, built and guaranteed by one team. London & Hertfordshire. LABC Registered Partner · NFB member.

LABC Award Winners 2024 & 2026. 200+ reviews, 4.7/5. 20+ years. Free consultation call: 020 8037 7332

Side-return infill or a single-storey side extension — you can often do both under Permitted Development if you follow t...
14/10/2026

Side-return infill or a single-storey side extension — you can often do both under Permitted Development if you follow the rules. Key points: keep the extension no wider than half the original house, no higher than 4 m, and mind the boundary eaves limit. Adding a rear extension can turn it into a wraparound that requires full planning permission. Read the full guide and fixed-price details here: https://wix.to/VcQjOjl

Side return and side extensions under permitted development: the half-width rule, 4 m height and 3 m eaves limits, why a wraparound needs planning, and price.

Thinking about a rear extension in London? A single-storey rear extension of 3m (terrace/semis) or 4m (detached) is ofte...
14/10/2026

Thinking about a rear extension in London? A single-storey rear extension of 3m (terrace/semis) or 4m (detached) is often Permitted Development — and you can extend up to 6–8m through the Prior Approval route. Learn about height, eaves, garden and materials rules, what can take a scheme out of PD, Lawful Development Certificates and fixed-price economy specs in our latest guide. Read more: https://wix.to/YR1ys3y

Rear extension under permitted development in London: the 3 m and 4 m limits, the 6–8 m larger home extension route, height and garden rules, LDC and price.

Make the most of your terrace roof: L-shaped dormers can use the full 40 m³ allowance to create two rooms + a bathroom —...
14/10/2026

Make the most of your terrace roof: L-shaped dormers can use the full 40 m³ allowance to create two rooms + a bathroom — often under permitted development with a Lawful Development Certificate. Perfect for Victorian and Edwardian terraces with an outrigger. Read the full guide on design, planning considerations and typical layouts. https://wix.to/HniL3WY

L-shaped dormer loft conversion under permitted development: how the 40 m³ terrace allowance covers the main roof and the outrigger, the LDC and a fixed price.

Maximise your semi-detached home's space without a full planning application. Discover how a hip-to-gable loft conversio...
14/10/2026

Maximise your semi-detached home's space without a full planning application. Discover how a hip-to-gable loft conversion — combined with a rear dormer — can turn wasted loft space into a full double bedroom and bathroom almost always under permitted development. Read the full guide and see examples: https://wix.to/xd9xS3d

Hip-to-gable loft conversion under permitted development: how the 50 m³ allowance works on a semi, the rear dormer combo, the LDC, timescales and a fixed price.

Most London terraces and semis can add a rear dormer under permitted development — no planning application needed. Disco...
14/10/2026

Most London terraces and semis can add a rear dormer under permitted development — no planning application needed. Discover the 40 & 50 cubic-metre rules, design limits, what rules a house out, and typical economy-spec costs in our latest blog. Read more: https://wix.to/DVvnyzW

Hashtags:

Permitted development loft conversion in London: the 40/50 m³ rule, what a rear dormer can and cannot do, the Lawful Development Certificate and a fixed price.

Thinking about a house extension in Borehamwood (WD6)? Discover 2026 costs, how Hertsmere Borough Council treats single-...
12/10/2026

Thinking about a house extension in Borehamwood (WD6)? Discover 2026 costs, how Hertsmere Borough Council treats single- and double-storey works on 1930s–1960s homes, plus two real LCCL projects: a 4m rear kitchen extension and a hip-to-gable loft. Read the full guide and see project photos: https://wix.to/QyPf56T

House extensions in Borehamwood and Elstree WD6: 2026 costs inc. VAT for rear, side and double-storey extensions, Hertsmere planning and two real projects.

Thinking about a loft conversion in East London? Our new guide breaks down 2026 costs, planning rules and which loft typ...
12/10/2026

Thinking about a loft conversion in East London? Our new guide breaks down 2026 costs, planning rules and which loft types suit Victorian & Edwardian terraces across E17, E11, E10, E4 and E8 — plus a real-life E17 project. Read the full breakdown and start planning: https://wix.to/9EB0Nqy

Loft conversions in East London: 2026 costs inc. VAT for dormer, L-shaped, hip-to-gable and mansard lofts on the terraces, and planning rules by borough.

Choosing the right loft conversion specialist in London can save you time, money and stress. Our latest guide walks you ...
12/10/2026

Choosing the right loft conversion specialist in London can save you time, money and stress. Our latest guide walks you through 9 essential questions to separate true design-and-build firms from brokers and lead-sellers — and explains what a genuine fixed price and warranty should look like. Read it now: https://wix.to/S9o0eLe

How to choose a loft conversion specialist in London: who actually builds, what the warranty covers, how the price is fixed, and nine questions to ask first.

Confused by builder quotes? Our latest blog breaks down PC sums, provisional sums and the exclusions page so you can com...
12/10/2026

Confused by builder quotes? Our latest blog breaks down PC sums, provisional sums and the exclusions page so you can compare proposals with confidence. Read the full guide and see an anonymised example to help you spot hidden costs. https://wix.to/vhtznM2

How to read a builder's quote for an extension: what PC sums and provisional sums mean, where exclusions hide, and how a £108k headline becomes £125k.

Who signs the contract? Who’s liable if something goes wrong? Who carries the budget risk? Our new blog breaks down four...
12/10/2026

Who signs the contract? Who’s liable if something goes wrong? Who carries the budget risk? Our new blog breaks down four common ways to build a London extension — design & build, build management, architect + builder and more — so you know exactly who you’re hiring. Read it for the questions to ask before you commit. https://wix.to/FhxsJ9e

Design & build, build management, architect and builder, or a directory: who you contract with, who is liable and who carries the price risk on an extension.

Address

3rd Floor, Hathaway House, Popes Drive
London
N31QF

Opening Hours

Monday 8am - 6pm
Tuesday 8am - 6pm
Wednesday 8am - 6pm
Thursday 8am - 6pm
Friday 8am - 6pm
Saturday 8am - 6pm

Telephone

+442080377332

Website

, ,

Alerts

Be the first to know and let us send you an email when LCCL Construction posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Sponsored

Share

Category