- Planning authority
- Blackburn with Darwen Borough Council
- Postcodes
- BB3
- Noon sun, 21 March
- About 36°
- Shadow from a 5 m eaves line
- About 6.8 m
- Planning plan
- Local Plan
- County
- Lancashire
How it plays out in Darwen
Replacing a bungalow in BB3 with two or more homes needs planning permission for the new homes, and Blackburn with Darwen Borough Council will look closely at the number of homes, their height, parking, bins and garden space for each household.
A replacement can sometimes fit better than squeezing a new home behind a bungalow that stays, because the whole plot can be laid out from scratch. Neighbours are consulted either way, and a design that respects single-storey homes next door usually meets fewer objections.
What happens next in Darwen
After a free appraisal, we set out what could realistically fit on your Darwen plot: a home behind, a home beside, or a replacement scheme. You choose the route that suits you, whether that’s selling, partnering or having us build, and only then do we start on drawings and planning work. Nothing is spent on design until you’ve decided.
Free plot appraisal
We look at the plot’s width and depth, the access, the planning history nearby and the character of the street, then talk through what you want. It’s free, with no obligation, and a site visit follows if it looks viable.
Choose your route
You can sell a plot and stay put, sell subject to planning, grant an option, enter a joint venture, or keep the land and have us design, get planning for and build a new home on it.
Planning application
We prepare drawings and reports designed around single-storey neighbours and the street scene, usually seek pre-application advice, and submit. The council consults neighbours and makes the decision.
Sale or build
If you sell, your solicitor handles the transfer and any lender release. If we build, you receive a written quote after design and survey, and the new home is built and handed over to you.
Worth checking early
- Replacing the bungalow means moving out during demolition and building, which suits some owners and not others.
- Filling the gap beside a bungalow can change the look of the street, which councils weigh carefully.
- The order in which you sell the plot and the bungalow can affect your tax, so take advice first.
Your questions, answered for Darwen
Can I sell part of my bungalow garden in Darwen and stay living there?
Yes. You keep the bungalow and sell the land behind or beside it, with or without planning, subject to survey, title and contract. If the bungalow is mortgaged, the lender must agree to release the plot. Take tax advice before you sell.
Could I build a home for a relative on my bungalow plot in Darwen?
Yes, through our design and build route. You keep the land, and we design, get planning for and build the new home. A separate home needs planning permission; an annexe used as part of the main house is treated differently.
How long does planning for a bungalow plot in Darwen usually take?
It varies. Surveys and design often take a few weeks to a few months, then the council needs time to decide. Pre-application advice, extra reports or design changes can add time. We give you a realistic idea after the appraisal.
Is it worth replacing my bungalow in Darwen with more homes?
Sometimes, where the plot is large and the bungalow is dated or poorly placed. Replacement can fit more homes than building behind, but you would need to move out during the work. We compare both approaches for your plot during the appraisal.
Other options in Darwen
- Sell part of your garden
- Combine gardens with your neighbours
- Planning promotion for your garden plot
- Sell subject to planning
- Build a new home in your garden
- Plot feasibility and design

