- Planning authority
- London Borough of Lambeth
- Postcodes
- SE27, SW2, SW4, SW8, SW9
- Noon sun, 21 March
- About 39°
- Shadow from a 5 m eaves line
- About 6.3 m
- Planning plan
- Local Plan
- County
- Greater London
How it plays out in Lambeth
We cover gardens in Lambeth and nearby places such as Southwark, Wandsworth and Lewisham, with the same process wherever you are: a free desktop appraisal, a visit if the plot looks viable, then survey and design.
Some of those places may fall under a different council from the London Borough of Lambeth, and each local planning authority has its own design guidance, validation list and pre-application service. We confirm which authority covers your address at the start, so the application is prepared for the right requirements first time and avoids delays at validation.
The next steps, locally
Getting started in Lambeth takes one step from you: send your address and a few photos of the garden, or call us. We check the title plan, access and planning constraints from our desk, then talk the plot through. If it looks viable we arrange a visit, discuss whether you want to sell, let or keep the new home, and set out the survey and design stage in writing before you commit.
Free plot appraisal
We check the title plan, access, constraints and planning policy from our desk, talk the plot through with you, and visit if it looks viable. There’s no cost and no obligation.
Planning and approvals
We submit the planning application and manage it to a decision, then deal with conditions, Building Regulations approval, the structural warranty, any build-over agreement and the new utility connections.
Written quote and build
Once design and survey are complete you get a written quote. The build runs in stages — access and groundworks, foundations, frame and roof, fit-out and external works — with inspections at each key point.
Handover
You receive the completion certificate, warranty documents, Energy Performance Certificate, manuals and utility details, so the new home is ready to move into, let or put on the market.
Worth checking early
- Building and selling a new home can change your tax position compared with selling only your house; take advice from a tax adviser first.
- You fund the build and carry the cost risk; ground conditions, sewer diversions or supply upgrades found later can move the price.
- A build next door means months of noise, deliveries and contractors near your home; good planning reduces the disruption but doesn’t remove it.
Lambeth: questions to ask
Can I build a house in my Lambeth garden and then sell it?
Yes. You keep the land while the home is built, then sell the finished house. Before building starts, the plot should be given its own title through a transfer of part at HM Land Registry, and if your house is mortgaged your lender must agree to release the plot. Selling a home you’ve built can change your tax position, so take advice from a tax adviser first.
Do you visit gardens in Lambeth before giving advice?
We start with a desk review of the title plan, access, constraints and planning policy, then talk the plot through with you. If it looks viable, we arrange a site visit to see the access, levels, trees and neighbouring windows for ourselves. The appraisal is free and carries no obligation.
How close can a new house be to my own in Lambeth?
There’s no single national distance. Many councils use separation guides of around 21 metres between facing back windows and around 12 to 15 metres between a back window and a blank side wall, but the guidance used by the London Borough of Lambeth decides. Window positions, ground levels, roof shape and screening all affect what is acceptable, which is why we survey before we design.
Who decides planning for a garden house in Lambeth?
The London Borough of Lambeth decides applications for addresses in Lambeth, using the council’s Local Plan, national policy and its own design guidance. Neighbours and consultees such as highways officers can comment, and the decision is made by the council’s planning officers or, where the rules allow, its planning committee. Pre-application advice from the council can help test a scheme before the formal application is submitted.
Other options in Lambeth
- Garden plot option agreement
- Combine gardens with your neighbours
- Build a home for family in your garden
- Large rear gardens
- Tandem and landlocked plots
- Plot feasibility and design

